backend developer

Optimum7

<div><p><b>AI Systems Engineer/Developer (Claude-First)</b></p>
<p><b>
Location:</b> Remote, TR</p><p></p><p><br>
Optimum7 is a performance-driven B2B eCommerce growth agency. We engineer outcomes for industrial B2B and SaaS brands that want to scale smarter and faster through custom development and creative marketing strategies.</p>
<p>
We&rsquo;re looking for a fast, AI-native <b>AI Systems Engineer / Developer who builds with AI at the core and ships fast.</b></p>
<p>
If you think in systems, build with AI at the core (Claude, ChatGPT), and care about speed, output, and real-world impact, this role is for you.</p><p></p><p><b><br>
What You&rsquo;ll Do</b></p>
<ul>
<li>Design and develop scalable, high-performance backend systems and microservices architectures.</li>
<li>Build and maintain RESTful APIs and GraphQL endpoints for seamless integrations.</li>
<li>Turn ideas into working systems quickly, from concept to production.</li>
<li>Integrate LLMs (Claude, OpenAI) and AI/ML-powered features into real-world applications.</li>
<li>Build AI-driven workflows, agents, and automations to replace manual processes.</li>
<li>Design and optimize database structures (MySQL, PostgreSQL, Redis) and system performance.</li>
<li>Implement caching strategies (Redis, Memcached) and ensure scalability and reliability.</li>
<li>Integrate third-party services and platforms using modern API standards.</li>
<li>Work with cloud infrastructure, containerized environments (Docker, Kubernetes), and CI/CD pipelines.</li>
<li>Troubleshoot and resolve complex system issues with a focus on uptime and performance.</li>
<li>Implement security best practices (OAuth 2.0, JWT, encryption, OWASP standards).</li>
<li>Continuously ship, test, and improve systems in a fast-paced, agile environment.</li>
<li>Collaborate with cross-functional teams while contributing to technical decisions and architecture.</li>
<li>Stay current with emerging technologies and apply them to improve speed and system capability.</li></ul><p><b><br>
</b></p><p><b>What You Bring</b></p>
<ul>
<li>Hands-on experience using AI tools (Claude, ChatGPT, etc.) in real development workflows</li>
<li>Use AI (Claude, ChatGPT, etc.) as your primary development interface</li>
<li>Can take an idea from concept  working system quickly</li>
<li>Think in automation, agents, and scalable architecture</li>
<li>Care about output and speed, not process</li>
<li>Operate with speed as a standard, delivering prototypes in hours, features in days, and systems in weeks, not weeks for features or months for systems.</li></ul><p><b><br>
</b></p><p><b>AI-First Requirement (Non-Negotiable)</b></p>
<p>
 You must already:</p>
<ul>
<li>use Claude Code daily for coding, debugging, and system design</li>
<li>rely on AI to accelerate development and decision-making</li>
</ul>
<p> If AI is not central to your workflow, this role is not a fit for you.</p><p><b><br>
</b></p><p><b>What We Value at Optimum7</b></p>
<ul>
<li>Commitment to Excellence: Precision, efficiency, and delivering top-tier work.</li>
<li>Problem-Solving Orientation: We don&rsquo;t stop at &ldquo;no&rdquo;; we find solutions.</li>
<li>Innovative Mindset: Always thinking bigger and smarter to drive growth.</li>
<li>Team-Centric Attitude: &ldquo;Zero drama&rdquo; culture built on collaboration and trust.</li>
<li>Growth Minded: Continuous learning, feedback, and improvement.</li>
<li>Purpose-Driven: We empower eCommerce and B2B brands to scale through innovation.</li></ul><br>
<p></p>
<p><b>
Why Join Optimum7</b></p>
<ul>
<li>100% remote role</li>
<li>Competitive base salary paid in USD</li>
<li>Growth opportunities within a rapidly expanding company.</li>
<li>Access to an AI-powered tech stack</li>
<li>A culture built on excellence, integrity, and innovation.</li></ul><br>
<p></p>
<p><b>
Ready to Grow with Us?</b></p>
<p><b><i>
If you want to operate at the edge of AI-driven systems, move fast, and build real impact, this is your environment.</i></b></p>
<p><b><i>
Apply with more than just your resume, including GitHub or code samples, examples of AI-driven systems, features, or automations you&rsquo;ve built, the tools used (e.g., Claude, OpenAI), and optionally a Loom walkthrough of your workflow.</i></b></p><p></p><p><b><br>
Learn more:</b></p><p><br>
<br>
www.optimum7.com</p>
<p>
 Follow us on LinkedIn: Optimum7</p></div>

AI Systems Engineer/Developer (Claude-First)

Commencis

<div><div>We are looking for a highly motivated and experienced <b>Senior Software Engineer (Java)</b> to join our team.
</div>
<div></div><div><b>Senior Software Engineer (Java)</b> is responsible for designing, developing, and maintaining scalable, high-performance backend systems that power our products and services. In this role, you will translate business and product requirements into robust technical solutions, ensuring reliability, security, and performance across backend services.
</div>
<div></div><div>You will work closely with cross-functional teams, including frontend developers, DevOps engineers, product managers, lead engineers, and solution architects, to design and implement efficient, scalable, and maintainable backend architectures using modern Java technologies. You will also contribute to architectural discussions, apply best practices, and support the overall quality and sustainability of the codebase.
</div>
<div></div><div><b>If you are curious by nature, adaptive, collaborative, and always one step ahead, then join us and be a Commencer!</b></div><br>
<div></div>
<div></div>
<h3 class="jobSectionHeader"><b>Responsibilities
</b></h3><div><div><ul><li>Design, develop, and maintain scalable and high-performance backend systems using Java and Spring Framework (Spring Boot, Spring MVC, Spring Data, Spring Security, etc.)</li>
<li>Contribute to system architecture decisions and lead the design of both monolithic and microservices-based solutions</li>
<li>Develop and maintain Backend-for-Frontend (BFF) layers and core backend services to support scalable applications</li>
<li>Strong understanding of design principles, design patterns, and architectural best practices (DDD, TDD, and layered architecture)</li>
<li>Build and maintain RESTful APIs and ensure high availability and performance</li>
<li>Collaborate with cross-functional teams including product, design, and QA to deliver high-quality solutions</li>
<li>Ensure code quality through code reviews, best practices, and clean code principles</li>
<li>Write and maintain unit and integration tests</li>
<li>Troubleshoot, debug, and optimize existing systems</li>
<li>Participate in CI/CD processes and support deployment activities</li>
<li>Mentor junior developers and contribute to team knowledge sharing</li>
<li>Stay up to date with emerging technologies and industry best practices</li>
<li>Experience with AI technologies and a strong interest in learning and applying them in real-world use cases</li>
<li>This role requires flexibility in working days to align with client schedules, as some clients operate between Sunday and Thursday.</li></ul></div><br>
</div>
<p></p><h3 class="jobSectionHeader"><b>Qualifications
</b></h3><ul><li>BSc/MSc/PhD degree in Computer Science or a related field, or equivalent practical experience</li>
<li>At least 5 years of professional experience in backend development with Java Strong experience with Spring Framework (Spring Boot, Spring MVC, Spring Data, Spring Security, etc.)</li>
<li>Strong understanding of OOP principles, design patterns, and scalable system design</li>
<li>Experience with microservices architecture and distributed systems</li>
<li>Hands-on experience with relational and non-relational databases (e.g., PostgreSQL, MySQL, MongoDB, Redis)</li>
<li>Familiarity with message brokers (e.g., Kafka, RabbitMQ) is a plus</li>
<li>Basic knowledge of front-end technologies such as JavaScript, HTML5 and CSS3</li>
<li>Strong unit test and debugging skills</li>
<li>Proficiency in code versioning tools such as Git</li>
<li>Familiarity with CI/CD pipelines and DevOps practices is a plus</li>
<li>Strong sense of analytical thinking and problem-solving skills</li>
<li>Excellent attention to detail</li>
<li>Highly effective time management and multitasking skills</li>
<li>Strong verbal and written communication skills both in English and Turkish</li>
</ul>
<div></div><div><b>Why Commencis?</b></div>
<div></div>
<div>We want people to thrive at Commencis. Here&rsquo;s what Commencers like about working here:</div>
<div></div>
<div><b>Competitive Compensation &amp; Benefits:</b> We offer a competitive salary, private health insurance, pension and retirement plans through a company-backed pension system, meal card, commute compensation, work-from-home support, and a paid birthday off.</div>
<div></div>
<div><b>Happier Weekdays:</b> We offer flexible working hours, including a remote working option. Enjoy online events, guest speakers, office refreshments, a meeting-light culture, and many more perks to enhance your weekdays.</div>
<div></div>
<div><b>Never Stop Learning:</b> We support learning and development programs for almost anything. Additionally, we provide access to leading online e-learning platforms like Udemy and various libraries.</div>
<div></div>
<div><b>Community &amp; Socials:</b> We are a tight-knit community that loves gathering together. Our social activities include happy hours, workshops, a New Year party, breakfast &amp; lunch get-togethers, movie nights, and our Summer Festival.</div>
<div></div>
<div><b>Open Culture:</b> We maintain a flat organizational structure with a culture of direct and open communication. We value Commencers&rsquo; voices and address any suggestions and questions you may have.</div><br>
<div></div>
<div></div>
<div><b>About Commencis</b></div>
<div></div>
<div>Join us in paving the way for a thriving digital society!</div>
<div></div>
<div>Commencis has more than two decades of expertise in the world of experience design, software engineering and cloud technologies. Our products and solutions are used by leading brands in financial services, insurance, airlines and retail in more than 20 countries.</div>
<div></div>
<div>We help our clients around the globe to commence their next evolution and pave the way for a thriving digital society. We love discovering what&rsquo;s next. We value collaboration, curiosity, and an open mindset at work.</div>
<div></div>
<div>If you share the same passion with our fellow Commencers, then let us unleash your world-class potential!</div>
<div></div>
<div><b>We will process your personal data as part of our recruitment procedures. To find out more, please consult our </b><b>Candidate Privacy Notices</b><b>.</b></div>
<p>
We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.</p></div>

Senior Software Engineer (Java)

<div><div>We are looking for a highly motivated and experienced <b>Senior Software Engineer (.Net)</b> to join our team.</div>
<div></div>
<div><b>Senior Software Engineer (.NET</b>) is responsible for designing, developing, and maintaining scalable, high-performance backend systems that power our products and services. In this role, you will translate business and product requirements into robust technical solutions, ensuring reliability, security, and performance across backend services.
</div>
<div></div><div>You will work closely with cross-functional teams, including frontend developers, DevOps engineers, product managers, and solution architects, to design and implement efficient, scalable, and maintainable backend architectures using modern .NET technologies. You will also contribute to architectural discussions, apply best practices, and support the overall quality and sustainability of the codebase. If you are curious by nature, adaptive, collaborative, and always one step ahead, then join us and be a Commencer!</div>
<div></div>
<div><b>If you are curious by nature, adaptive, collaborative, and always one step ahead, then join us and be a Commencer!</b></div>
<h3 class="jobSectionHeader"><b>Key Responsibilities</b></h3><ul>
<li>Design, develop, and maintain scalable and high-performance backend systems using .NET technologies</li>
<li>Contribute to system architecture decisions and lead the design of microservices-based solutions</li>
<li>Build and maintain RESTful APIs and ensure high availability and performance</li>
<li>Collaborate with cross-functional teams including product, design, and QA to deliver high-quality solutions</li>
<li>Ensure code quality through code reviews, best practices, and clean code principles</li>
<li>Write and maintain unit and integration tests</li>
<li>Troubleshoot, debug, and optimize existing systems</li>
<li>Participate in CI/CD processes and support deployment activities</li>
<li>Mentor junior developers and contribute to team knowledge sharing</li>
<li>Stay up to date with emerging technologies and industry best practices</li>
</ul><h3 class="jobSectionHeader"><b>Qualifications &amp; Experience</b></h3><ul>
<li>BSc/MSc/PhD degree in Computer Science or a related field, or equivalent practical experience</li>
<li>At least 5 years of professional experience in backend development with .NET (C#, .NET Core / .NET 8+)</li>
<li>Strong understanding of OOP principles, design patterns, and scalable system design</li>
<li>Experience with microservices architecture and distributed systems</li>
<li>Hands-on experience with relational and non-relational databases (e.g., SQL Server, PostgreSQL, MongoDB, Redis)</li>
<li>Familiarity with message brokers (e.g., Kafka, RabbitMQ) is a plus</li>
<li>Basic knowledge of front-end technologies such as JavaScript, HTML5, CSS3 and TypeScript</li>
<li>Strong experience in unit testing and debugging</li>
<li>Proficiency with Git or similar version control systems</li>
<li>Familiarity with CI/CD pipelines and DevOps practices is a plus</li>
<li>Hands-on experience using AI tools throughout the development process</li>
<li>Strong analytical thinking and problem-solving skills</li>
<li>Excellent attention to detail</li>
<li>Effective time management and multitasking skills</li>
<li>Strong verbal and written communication skills</li>
<li>Fluent in English</li>
</ul><div><b>Why Commencis?</b></div><div><b>
</b></div><div>
We want people to thrive at Commencis. Here&rsquo;s what Commencers like about working here:</div><div><b>
</b></div><div><b>
Competitive Compensation &amp; Benefits:</b> We offer a competitive salary, private health insurance, pension and retirement plans through a company-backed pension system, meal card, commute compensation, work-from home support and paid birthday off.</div><div></div><div><b><br>
Happier Weekdays:</b> We offer flexible working hours including remote working option. Online events, guest speakers, refreshments in the office, meeting-light culture, and many more to enjoy the weekdays.</div><div></div><div><b><br>
Never Stop Learning:</b> We support learning and development programs for almost anything. Additionally, we provide access to leading online e-learning platforms like Udemy and various libraries.</div><div></div><div><b><br>
Community &amp; Socials:</b> We are a tight-knit community that loves gathering. Our social activities include happy hours, workshops, new year party, breakfast &amp; lunch get-togethers, movie nights, and our Summer Festival.</div><div></div><div><b><br>
Open Culture:</b> We maintain a flat organizational structure with a culture of direct and open communication. We value Commencers&rsquo; voices and address any suggestions and questions you may have.</div><div></div><div><b><br>
About Commencis</b></div><div></div><div><br>
Join us in paving the way for a thriving digital society!</div><div></div><div><br>
Commencis has more than two decades of expertise in the world of experience design, software engineering and cloud technologies. Our products and solutions are used by leading brands in financial services, insurance, airlines and retail in more than 20 countries.</div><div></div><div><br>
We help our clients around the globe to commence their next evolution and pave the way for a thriving digital society. We love discovering what&rsquo;s next. We value collaboration, curiosity, and an open mindset at work.</div><div></div><div><br>
If you share the same passion with our fellow Commencers, then let us unleash your world-class potential!</div><div></div><div><b><br>
We will process your personal data as part of our recruitment procedures. To find out more, please consult our </b><b>Candidate Privacy Notices</b><b>.</b></div><div></div><p><br>
We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.</p></div>

Senior Software Engineer (.Net)

Medsien Inc.

<div><p>Medsien is the leading provider of scalable remote care management for a quality patient experience. Hundreds of organizations trust Medsien's unparalleled technology solutions to implement exceptional remote care management programs, personalize every interaction, and improve the lives of the people who need it most. Based in San Francisco and venture-backed by top-tier investors, Medsien was founded to reimagine remote care management.</p>
<p>
More than 60% of all U.S. adults&mdash;over 150 million people&mdash;live with at least one chronic condition, which requires dedicated, ongoing medical support outside the four walls of their doctor's office. And yet, only 20% of these patients have access to remote care from the comfort of their homes, putting their health at significant risk. Together, we can save lives and create a real impact.</p>
<p>
Medsien is a venture-backed healthcare SaaS company experiencing rapid growth and looking to expand our team. We are seeking organized, motivated, and passionate <b>Back-End Developers</b><b> </b>to join our team of talented and inspiring developers in a fast-paced environment.</p>
<p>
As a <b>Back-End Developer</b>, you'll work on new exciting projects with full autonomy. We're looking for a candidate who is passionate about building new applications from the ground up and who will join a growing team in developing the products that enable providers to provide high quality services to their patients.</p>
<p><b>
As a Back-End Developer, you will:</b></p>
<ul>
<li>Implement and document new software apps and components,</li>
<li>Understand how code fits into broader technical and/or business contexts,</li>
<li>Actively participate in code review and technical design reviews,</li>
<li>Work on medium to large projects. Participate in all system/component implementation and design from development to production,</li>
<li>Research new technologies and prototype new ideas,</li>
<li>Ensure high testability and quality of delivered software,</li>
<li>Work with the Operations team to troubleshoot and fix defects in software,</li>
<li>Participate in building Scrum processes and agile culture within the company.</li>
</ul>
<p><b>Please apply if you have:</b></p>
<ul>
<li>3+ years of back-end development experience,</li>
<li>Having worked in a dynamic, agile environment with minimal supervision,</li>
<li>Extensive experience with Python/Django,</li>
<li>A creative and driven mindset with experience navigating through ambiguity and a desire to work in a fast-paced, results-driven environment,</li>
<li>A desire to learn and try new approaches/ ideas and stretch boundaries,</li>
<li>Extreme problem solving skills,</li>
<li>Outstanding communication skills,</li>
<li>Bachelor's Degree or higher in Computer Science, or a related field of study,</li>
<li>Perfect English skills; both written and oral,</li>
<li>Residence in Istanbul (proximity to central Istanbul is a plus for potential on-site meetings).</li>
</ul>
<p><b>For this position, we offer:</b></p>
<ul>
<li>competitive USD salary and stock options,</li>
<li>Flexible vacation and PTO policies,</li>
<li>Fully remote work opportunities,</li>
<li>Training, mentorship, and coaching from leadership.</li>
</ul>
<p>Please bear in mind that:</p>
<ul>
<li>This is a permanent-term contractor job opportunity with Medsien Inc.
</li><li>Due to in-person collaboration requirements, candidates based in Istanbul are preferred.</li>
<li>All interviews will be conducted in English and the candidates having less than advanced level of English will be directly eliminated from the process regardless of their technical skills and expertise.</li>
</ul>
<p><b>Our Process</b></p>
<p>
We will review your application along with all the others we receive and pick the top profiles for a screening call. In many cases due to time constraints and our candidate volume, only the short-listed candidates are contacted but we do consider each application carefully. If you have been selected as a short-listed candidate, we will contact you for a short screening call to get to know you better. If you don't get a call, please don't be disappointed! We receive many applications for each role and must prioritize who we speak to.</p>
<p>
Employment at <b>Medsien</b> is based solely on a person's merit and qualifications. We are committed to providing equal employment opportunity regardless of sex, age, race, color, national or ethnic origin, religion, marital status, pregnancy, sexual orientation, gender identity or expression, disability, age, citizenship, veteran or military status, and other legally protected characteristics.</p>
<p><b>
Thank you for taking the time to apply for a position at Medsien!</b></p>
<p>
Please visit the below links for GDPR details:</p>
<p>
https://www.medsien.com/legal/employee-candidate-information-notice</p>
<p>
https://www.medsien.com/legal/employee-candidate-explicit-consent-statement</p></div><p></p>

Back-End Developer

Talan

<div>
 <br/>
 <strong>
  Talan &ndash; Positive Innovation
  <br/>
  <br/>
 </strong>
 Talan is an international consulting group specializing in innovation and business transformation through technology. With over 7,200 consultants in 21 countries and a turnover of &euro;850M, we are committed to delivering impactful, future-ready solutions.
 <br/>
 <br/>
 <strong>
  Talan at a Glance
  <br/>
  <br/>
 </strong>
 Headquartered in Paris and operating globally, Talan combines technology, innovation, and empowerment to deliver measurable results for our clients. Over the past 22 years, we&rsquo;ve built a strong presence in the IT and consulting landscape, and we&rsquo;re on track to reach &euro;1 billion in revenue this year.
 <br/>
 <br/>
 <strong>
  Our Core Areas of Expertise
  <br/>
  <br/>
  <br/>
 </strong>
 <ul>
  <li>
   <strong>
    Data &amp; Technologies:
   </strong>
   We design and implement large-scale, end-to-end architecture and data solutions, including data integration, data science, visualization, Big Data, AI, and Generative AI.
   <br/>
   <br/>
   <br/>
  </li>
  <li>
   <br/>
   <strong>
    Cloud &amp; Application Services:
   </strong>
   We integrate leading platforms such as SAP, Salesforce, Oracle, Microsoft, AWS, and IBM Maximo, helping clients transition to the cloud and improve operational efficiency.
   <br/>
   <br/>
   <br/>
  </li>
  <li>
   <br/>
   <strong>
    Management &amp; Innovation Consulting:
   </strong>
   We lead business and digital transformation initiatives through project and change management best practices (PM, PMO, Agile, Scrum, Product Ownership), and support domains such as Supply Chain, Cybersecurity, and ESG/Low-Carbon strategies.
   <br/>
   <br/>
   <br/>
   <br/>
   <br/>
   <br/>
  </li>
 </ul>
 <strong>
  We work with major global clients across diverse sectors, including Transport &amp; Logistics, Financial Services, Energy &amp; Utilities, Retail, and Media &amp; Telecommunications.
  <br/>
  <br/>
 </strong>
 <strong>
  Job Description
  <br/>
  <br/>
  <br/>
 </strong>
 As a
 <strong>
  Backend Spark developer
 </strong>
 , your mission will be to develop, test and deploy the technical and functional specifications from the Solution Designers / Business Architects / Business Analysts, guaranteeing the correct operability and the compliance with the internal quality levels.
 <br/>
 <br/>
 We need somebody like you to help us in different fronts:
 <br/>
 <br/>
 <br/>
 <ul>
  <li>
   You will develop end-to-end ETL processes with Spark/Scala. This includes transferring data from/to the data lake, technical validations, business logic, etc.
  </li>
  <li>
   You will use Scrum methodology, and be part of a high performance team
  </li>
  <li>
   You will document your solutions in the tools: JIRA, Confluence, ALM
  </li>
  <li>
   You will certify your delivery and its integration with other components, designing and performing the relevant test to ensure the quality of your team delivery
  </li>
  <li>
   You will work side by side with a technical specialist who will help you to improve the architecture and technical implementation of the solution in place
  </li>
  <li>
   You will collaborate with cross-functional and cross-country teams to integrate data from various sources
  </li>
  <li>
   You will  develop and maintain data hub and data pipelines in microservices architecture
  </li>
  <li>
   You will collaborate with other developers to maintain and improve CI/CD pipelines
   <br/>
   <br/>
   <br/>
  </li>
 </ul>
 <br/>
 <br/>
 <strong>
  WHAT WE ARE LOOKING FOR
  <br/>
  <br/>
  <br/>
 </strong>
 <ul>
  <li>
   Bachelor's degree in Computer Science or a related field.
  </li>
  <li>
   1+ years of experience in data/software engineering (preferable in banking)
  </li>
  <li>
   Experience with Integration Solutions (using API and Microservices)
  </li>
  <li>
   Programming backend applications with BigData technologies(
   <strong>
    Apache Spark
   </strong>
   )
  </li>
  <li>
   Agile approach for software development
  </li>
  <li>
   Continuous Integration (Git, GitHub)
  </li>
  <li>
   Knowledge of SQL databases
  </li>
  <li>
   English (at least B2+)
   <br/>
   <br/>
   <br/>
  </li>
 </ul>
 <strong>
  Qualifications
  <br/>
  <br/>
  <br/>
 </strong>
 <u>
  Preferred qualifications
  <br/>
  <br/>
  <br/>
 </u>
 <ul>
  <li>
   Git hub actions
  </li>
  <li>
   Scala or Python
  </li>
  <li>
   Bash scripting
  </li>
  <li>
   ControlM, AirFlow
  </li>
  <li>
   Software development life cycle (HP ALM,..)
  </li>
  <li>
   Basics of cybersecurity &amp; Quality (sonar&hellip;)
  </li>
  <li>
   Basics of Cloud computing (Docker, Kubernetes, S3, Azure, AWS, EMR, DataBricks)
  </li>
  <li>
   SOA Architecture
   <br/>
   <br/>
   <br/>
  </li>
 </ul>
 <strong>
  Additional Information
  <br/>
  <br/>
 </strong>
 <strong>
  What do we offer you?
  <br/>
  <br/>
  <br/>
 </strong>
 <ul>
  <li>
   Full-time contract.
  </li>
  <li>
   Smart Office Pack so that you can work comfortably from home.
  </li>
  <li>
   Training and career development.
  </li>
  <li>
   Benefits and perks such as
   <strong>
    private medical insurance
   </strong>
   , life insurance.
  </li>
  <li>
   Possibility to be part of a multicultural team and work on international projects.
  </li>
  <li>
   <strong>
    This is a hybrid position based in Warsaw, Poland.  Relocation is mandatory.
   </strong>
  </li>
  <li>
   Possibility to manage work-permits.
   <br/>
   <br/>
   <br/>
  </li>
 </ul>
 <strong>
  If you are passionate about development &amp; tech, we want to meet you!
  <br/>
  <br/>
 </strong>
 <br/>
 <br/>
 Talan Spain&rsquo;s commitment to non-discrimination based on gender, race, ideology, or any other reason, in accordance with the company&rsquo;s "Equality Plan" and the current regulations on gender equality between women and men (Royal Decree-Law 6/2019).
 <br/>
 <br/>
 <br/>
</div>


Copy of Junior Back-End Developer - Big Data  (Relocation to Poland)

<div>
 <p>
  We are looking for a highly experienced and technically strong
  <strong>
   Software Architect
  </strong>
  to
  <strong>
  </strong>
  join our backend team.
 </p>
 <p>
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 </p>
 <p>
  <strong>
   Software Architect
  </strong>
  is responsible for designing and evolving the technical architecture of backend services, with a primary focus on Java, Spring Boot, distributed systems, and domain-oriented design. In this role, you will translate complex business and product requirements into scalable, maintainable, and high-quality architectural solutions, ensuring long-term sustainability, performance, and reliability across systems.
 </p>
 <p>
  <br/>
 </p>
 <p>
  As a Software Architect, you will collaborate closely with engineering teams, product managers, QA, DevOps, and peer architects to establish architectural standards, guide best practices, and ensure alignment across teams. You will drive the design of modular and scalable backend systems, oversee service architecture, APIs, data flows, and integration patterns, and ensure that software solutions are secure, observable, and aligned with both business and engineering objectives.
 </p>
 <p>
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 </p>
 <p>
  <strong>
   If you are curious by nature, adaptive, collaborative, and always one step ahead, then join us and be a Commencer!
  </strong>
 </p>
 <p>
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 </p>
 <p>
  <strong>
   Responsibilities
  </strong>
 </p>
 <p>
  <br/>
 </p>
 <ul>
  <li>
   Providing active hands-on architectural guidance and leadership through the entire lifecycle of backend products and services
  </li>
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   Designing backend architectures using Java, Spring Boot, and related technologies in alignment with scalability, maintainability, performance, and security goals
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   Defining and evolving domain structures, bounded contexts, service decomposition strategies, and modular architecture approaches including modular monolith and microservices where appropriate
  </li>
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   Collaborating closely with other architects, engineering managers, and development teams across the organization in architecting and delivering robust backend solutions
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   Structuring and delivering technical documentation for HLDs, architecture decision records, solution designs, analysis inputs, API contracts, sequence diagrams, and backend design artifacts, and establishing standard practices for co-workers to adapt easily
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   Investigating and assessing emerging technologies, backend frameworks, and architectural patterns to determine the best approach for product and platform needs
  </li>
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   Defining non-functional requirements from availability, scalability, security, observability, extensibility, and operational support perspectives, and designing backend solutions to meet those requirements
  </li>
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   Supporting teams in troubleshooting system-level backend, integration, performance, data consistency, and production issues
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   Designing and guiding API-first, event-driven, and asynchronous integration patterns between internal and external systems
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   Driving architectural decisions for distributed systems including resilience, retries, idempotency, fault tolerance, transaction boundaries, caching, and messaging patterns
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   Reviewing and improving service boundaries, backend code structure, data access patterns, deployment architecture, and technical debt areas
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   Developing and leading proof-of-concept projects for backend frameworks, platform capabilities, and architectural improvements
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   Driving discussions with senior co-workers regarding trade-offs, best practices, project delivery risks, and backend modernization strategies
  </li>
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   Cross-training peers and mentoring teammates on software design principles, backend architecture patterns, and engineering standards
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   Conducting code reviews and design reviews, and providing feedback to team members with a focus on backend quality attributes and architectural sustainability
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   Assisting in technical audits and ensuring audit recommendations are implemented in line with secure software development and platform standards
  </li>
 </ul>
 <p>
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 </p>
 <p>
  <strong>
   Qualifications
  </strong>
 </p>
 <p>
  <br/>
 </p>
 <ul>
  <li>
   BSc/MSc degree in Computer Engineering, Software Engineering, or a related field
  </li>
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   8+ years of experience in backend software development, with strong hands-on experience in Java and Spring Boot
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   3+ years of experience in design and implementation of complex distributed backend systems and software architectures
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   2+ years of experience in a similar position guiding a cross-functional project or product team
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   Strong experience in backend service design, API architecture including REST, GraphQL, and gRPC, service-to-service communication, and integration patterns
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   Strong knowledge of software architecture patterns such as layered architecture, hexagonal architecture, clean architecture, modular monoliths, and microservices
  </li>
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   Experience with domain-driven design, domain modeling, and designing systems across different domain structures and business capabilities
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   Experience with containerization and orchestration frameworks such as Docker and/or Kubernetes
  </li>
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   Working knowledge of application and system availability, scalability, observability, and distributed data platforms
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   Expertise in backend performance optimization, transaction management, concurrency handling, and scalable system design
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   Experience with relational database design, SQL optimization, and data consistency patterns, with additional familiarity in non-relational and NoSQL databases
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   Experience with messaging and streaming technologies such as Kafka, RabbitMQ, or similar platforms
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   Expert-level understanding of CI/CD principles, knowledge of various tools, and strong focus on engineering quality gates and delivery practices
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   Knowledge of cloud services, especially AWS and related AWS services
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   Strong understanding of secure backend development practices including authentication, authorization, secure communication, and secrets/configuration management
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   Strong unit testing, integration testing, debugging, and root cause analysis skills
  </li>
  <li>
   Prior experience with SCRUM/Agile methodologies
  </li>
 </ul>
 <p>
  <br/>
 </p>
 <p>
  <strong>
   Why Commencis?
  </strong>
 </p>
 <p>
  <br/>
 </p>
 <p>
  We want people to thrive at Commencis. Here&rsquo;s what Commencers like about working here:
 </p>
 <p>
  <br/>
 </p>
 <p>
  <strong>
   Competitive Compensation &amp; Benefits:
  </strong>
  We offer a competitive salary, private health insurance, pension and retirement plans through a company-backed pension system, meal card, commute compensation, work-from-home support, and a paid birthday off.
 </p>
 <p>
  <br/>
 </p>
 <p>
  <strong>
   Happier Weekdays:
  </strong>
  We offer flexible working hours, including a remote working option. Enjoy online events, guest speakers, office refreshments, a meeting-light culture, and many more perks to enhance your weekdays.
 </p>
 <p>
  <br/>
 </p>
 <p>
  <strong>
   Never Stop Learning:
  </strong>
  We support learning and development programs for almost anything. Additionally, we provide access to leading online e-learning platforms like Udemy and various libraries.
 </p>
 <p>
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 </p>
 <p>
  <strong>
   Community &amp; Socials:
  </strong>
  We are a tight-knit community that loves gathering together. Our social activities include happy hours, workshops, a New Year party, breakfast &amp; lunch get-togethers, movie nights, and our Summer Festival.
 </p>
 <p>
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 </p>
 <p>
  <strong>
   Open Culture:
  </strong>
  We maintain a flat organizational structure with a culture of direct and open communication. We value Commencers&rsquo; voices and address any suggestions and questions you may have.
 </p>
 <p>
  <br/>
 </p>
 <p>
  <strong>
   About Commencis
  </strong>
 </p>
 <p>
  <br/>
 </p>
 <p>
  Join us in paving the way for a thriving digital society!
 </p>
 <p>
  <br/>
 </p>
 <p>
  Commencis has more than two decades of expertise in the world of experience design, software engineering and cloud technologies. Our products and solutions are used by leading brands in financial services, insurance, airlines and retail in more than 20 countries.
 </p>
 <p>
  <br/>
 </p>
 <p>
  We help our clients around the globe to commence their next evolution and pave the way for a thriving digital society. We love discovering what&rsquo;s next. We value collaboration, curiosity, and an open mindset at work.
 </p>
 <p>
  <br/>
 </p>
 <p>
  If you share the same passion with our fellow Commencers, then let us unleash your world-class potential!
 </p>
 <p>
  <br/>
 </p>
 <p>
  <strong>
   We will process your personal data as part of our recruitment procedures. To find out more, please consult our
   <u>
    Candidate Privacy Notices
   </u>
   .
  </strong>
 </p>
 <p>
  <em>
   We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.
  </em>
 </p>
 <p>
 </p>
</div>


Software Architect (Backend)

<div><p>Medsien is the leading provider of scalable remote care management for a quality patient experience. Hundreds of organizations trust Medsien's unparalleled technology solutions to implement exceptional remote care management programs, personalize every interaction, and improve the lives of the people who need it most. Based in San Francisco and venture-backed by top-tier investors, Medsien was founded to reimagine remote care management.</p>
<p>
More than 60% of all U.S. adults&mdash;over 150 million people&mdash;live with at least one chronic condition, which requires dedicated, ongoing medical support outside the four walls of their doctor's office. And yet, only 20% of these patients have access to remote care from the comfort of their homes, putting their health at significant risk. Together, we can save lives and create a real impact.</p>
<p>
Medsien is a venture-backed healthcare SaaS company experiencing rapid growth and looking to expand our team. We are seeking organized, motivated, and passionate <b>Full-Stack Engineer</b><b> </b>to join our team of talented and inspiring developers in a fast-paced environment.</p>
<p>
As a <b>Full-Stack Engineer</b>, you'll work on new exciting projects with full autonomy. We're looking for a candidate who is passionate about building new applications from the ground up and who will join a growing team in developing the products that enable providers to provide high quality services to their patients.</p>
<p><b>
As a Full-Stack Engineer, you will:</b></p>
<ul>
<li>Implement and document new software apps and components,</li>
<li>Understand how code fits into broader technical and/or business contexts,</li>
<li>Actively participate in code review and technical design reviews,</li>
<li>Work on medium to large projects. Participate in all system/component implementation and design from development to production,</li>
<li>Research new technologies and prototype new ideas,</li>
<li>Ensure high testability and quality of delivered software,</li>
<li>Work with the Operations team to troubleshoot and fix defects in software,</li>
<li>Participate in building Scrum processes and agile culture within the company.</li>
</ul>
<p><b>Please apply if you have:</b></p>
<ul>
<li>4+ years of back-end development experience,</li>
<li>Having worked in a dynamic, agile environment with minimal supervision,</li>
<li>Extensive experience with Python/Django,</li>
<li>A creative and driven mindset with experience navigating through ambiguity and a desire to work in a fast-paced, results-driven environment,</li>
<li>A desire to learn and try new approaches/ ideas and stretch boundaries,</li>
<li>Extreme problem solving skills,</li>
<li>Outstanding communication skills,</li>
<li>Bachelor's Degree or higher in Computer Science, or a related field of study,</li>
<li>Perfect English skills; both written and oral,</li>
<li>Residence in Istanbul city center.</li>
</ul>
<p><b>For this position, we offer:</b></p>
<ul>
<li>competitive USD salary and stock options,</li>
<li>Flexible vacation and PTO policies,</li>
<li>Fully remote work opportunities,</li>
<li>Training, mentorship, and coaching from leadership.</li>
</ul>
<p>Please bear in mind that:</p>
<ul>
<li>This is a permanent-term contractor job opportunity with Medsien Inc.
</li><li>Due to in-person collaboration requirements, candidates based in Istanbul are preferred.</li>
<li>All interviews will be conducted in English and the candidates having less than advanced level of English will be directly eliminated from the process regardless of their technical skills and expertise.</li>
</ul>
<p><b>Our Process</b></p>
<p>
We will review your application along with all the others we receive and pick the top profiles for a screening call. In many cases due to time constraints and our candidate volume, only the short-listed candidates are contacted but we do consider each application carefully. If you have been selected as a short-listed candidate, we will contact you for a short screening call to get to know you better. If you don't get a call, please don't be disappointed! We receive many applications for each role and must prioritize who we speak to.</p>
<p>
Employment at <b>Medsien</b> is based solely on a person's merit and qualifications. We are committed to providing equal employment opportunity regardless of sex, age, race, color, national or ethnic origin, religion, marital status, pregnancy, sexual orientation, gender identity or expression, disability, age, citizenship, veteran or military status, and other legally protected characteristics.</p>
<p><b>
Thank you for taking the time to apply for a position at Medsien!</b></p>
<p>
Please visit the below links for GDPR details:</p>
<p>
https://www.medsien.com/legal/employee-candidate-information-notice</p>
<p>
https://www.medsien.com/legal/employee-candidate-explicit-consent-statement</p></div><p></p>

Full-Stack Engineer (Back-End skewed)

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