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full-stack engineer (back-end skewed)

senior software engineer

RedCloud Technologies

<div><p><b>About RedCloud</b></p><p>
The global supply chain is broken&mdash;creating a $2 trillion inventory gap where essential consumer goods fail to reach the people who need them. Brands miss sales, distributors mismanage stock, and retailers face empty shelves. The result? Higher prices, slower growth, and lost opportunity across the board.</p><p>
RedCloud is fixing this. Our RedAI digital trading platform, bulk and retail trading exchanges connect key parts of the supply chain&mdash;enabling bulk inventory exchange, streamlined digital payments, and generating vast quantities of aggregated market data. By applying AI and machine learning techniques, we deliver predictive market insight and trading recommendations straight back to the trading environment&mdash;facilitating smarter everyday business decisions for our customers, from factory to warehouse to store.</p><p>
Headquartered in London, RedCloud became a publicly listed company on Nasdaq (RCT) in March 2025. With a diverse team spanning many nationalities and operations across Africa, the Middle East, Europe, and Latin America. We&rsquo;re building a more connected and efficient global trade network. Our AI labs are busy exploring the next generation of smart AI agents and deeper FMCG market intelligence for the benefit of our customers across a growing operational footprint.</p><p></p><p><b>
The role:</b></p><p></p><p>
A Senior Software Engineer solves challenges and adds value for our customers through their skills in technology. They investigate and resolve issues in our systems in a timely fashion. As a senior engineer within the team they are expected to give guidance, mentoring and where necessary training to juniors and/or new members of the team acting as the voice of experience, whilst still being open to learning from others. The Senior Engineer exemplifies our company values and is a consistent high performer delivering value on the most complex areas on a daily basis. They understand the architecture of the systems and are able to work with Engineering Managers and Product Managers to define and document architecture for new areas of the system, aligning to RedCloud&rsquo;s architecture strategies. They are expected to keep their technical knowledge up to date in the RedCloud Sphere of platforms, tools and languages.</p><p></p><p><b>
What you&rsquo;ll be doing:</b></p><p></p><ul><li><p>
Deliver Features and bug fixes in our software platforms for our customers.</p></li><li><p>
Investigate and resolve bugs in our systems.</p></li><li><p>
Respond to production outages and issues in our systems..</p></li><li><p>
Estimate features and bugs within estimation sessions alongside the team.</p></li><li><p>
Design end to end feature areas that fit into the overall RedCloud architecture patterns.</p></li><li><p>
Refine features delivered by product managers.</p></li><li><p>
Carry out code reviews / Pull-request reviews for other engineers, ensuring quality on code.</p></li><li><p>
As a senior member of the team train and learn latest technologies adopted by RedCloud suggesting future libraries and patterns we should be looking at as a business.</p></li><li><p>
Mentor all levels of engineers and new starters in the team, as their RedCloud buddy. Ensure they have all they need to succeed within your team.</p></li></ul><p></p><p><b>
What you&rsquo;ll need:</b></p><p></p><ul><li><p>
At least 6+ years of experience in software engineering, with strong proficiency in C#, .NET Core, AWS, Node.JS, Databases (SQL, NoSQL)</p></li><li><p>
Strong problem-solving skills and the ability to break down complex challenges into manageable, actionable tasks.</p></li><li><p>
Excellent communication skills, with a collaborative approach to working within diverse teams.</p></li><li><p>
A passion for continuous learning and personal development, with a willingness to explore new ideas and approaches.</p></li></ul><p></p><p>
Check out the links below to see what our CEO Justin Floyd has to say about our plans for growth for the year ahead, and to see our latest video on the mission we&rsquo;re on!</p><p>
https://youtu.be/8BmLoJ9U9vA</p><p>
https://youtu.be/59PD4UoTgIE</p></div>

Senior Software Engineer

Commencis

<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)

<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)

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 an organized, motivated, and passionate <b>Senior Software Engineer</b><b> </b>to join our team of talented and inspiring developers in a fast-paced environment.</p>
<p>
As a <b>Senior Software 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 Senior Software 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 Full-stack enterprise Software Engineering 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>Superb 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>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>

Senior Software Developer

<div><div><div>We are currently seeking a highly skilled <b>Senior Android Engineer</b> to join our team who will be responsible for the complete lifecycle of scalable, secure, and well-designed software products from research and design to implementation. You&rsquo;ll be working closely with designers, analysts, quality assurance, and other teams to translate each design into real-life products.
</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>
</div><h3 class="jobSectionHeader"><b>Key Responsibilities</b></h3><div>
<ul>
<li><p>Design, develop and lead/co-lead the development of software applications according to established requirements</p>
</li>
<li><p>Debug, diagnose, and fix the problems in developing and existing applications</p>
</li>
<li><p>Train and supervise the junior developers, provide technical support to project team members</p>
</li>
<li><p>Follow and improve the software development life-cycle and software development practices of the company, prepare the software related technical documentation when needed</p>
</li>
<li><p>Stay current with the latest development best practices and share findings with the team</p>
</li>
<li><p>Find better ways to do everything, stay at the forefront of the latest advances and productivity tools</p>
</li>
<li><p>Write quality code, and the ability to adhere to the coding guidelines.</p>
</li>
</ul></div><h3 class="jobSectionHeader"><b>Qualifications &amp; Experience</b></h3><div>
<ul>
<li><p>BS/MS degree in Computer Science / Computer Engineering or related field</p>
</li>
<li><p>Demonstrated expertise in Kotlin, with at least 4 years of hands-on experience in Android development</p>
</li>
<li><p>Hands-on experience with Jetpack Compose and a deep understanding of modern Android frameworks</p>
</li>
<li><p>Proficient in data structures, algorithms, and at least one programming language</p>
</li>
<li><p>Strong commitment to writing clean, maintainable, and testable code following best practices and design principles</p>
</li>
<li><p>Strong analytical and problem-solving abilities</p>
</li>
<li><p>Ability to learn new methods and processes</p>
</li>
<li><p>Adapting to changing project needs and priorities</p>
</li>
<li><p>Working knowledge of version source control systems such as Git</p>
</li>
<li><p>Fluent in English with excellent communication skills for technical discussions and collaboration</p>
</li>
<li>Availability to align with a Sunday - Thursday working schedule</li>
</ul></div><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 Android Engineer

<div><div><div>We are currently seeking a highly skilled <b>Senior iOS Engineer</b> to join our team who will be responsible for the complete lifecycle of scalable, secure, and well-designed software products from research and design to implementation. You&rsquo;ll be working closely with designers, analysts, quality assurance, and other teams to translate each design into real-life products.
</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>
</div><h3 class="jobSectionHeader"><b>Key Responsibilities</b></h3><div>
<ul>
<li><p>Developing iOS client applications based on user experience, visual designs, and user stories</p>
</li>
<li><p>Assessing potential technical and business risks and communicating them with the team</p>
</li>
<li><p>Providing alternative solutions to technical challenges</p>
</li>
<li><p>Conducting peer reviews and ensuring adherence to coding standards</p>
</li>
<li><p>Debugging, diagnosing, and resolving software related problems in the application</p>
</li>
<li><p>Writing automated tests</p>
</li>
<li><p>Continuously enhancing technical knowledge and sharing insights with the team</p>
</li>
</ul></div><h3 class="jobSectionHeader"><b>Qualifications &amp; Experience</b></h3><div>
<ul>
<li><p>Demonstrated expertise in SwiftUI and Swift, with at least 4 years of hands-on experience in iOS development</p>
</li>
<li><p>Hands-on experience with UIKit and a deep understanding of modern iOS frameworks</p>
</li>
<li><p>Proficient in data structures, algorithms, and at least one programming language</p>
</li>
<li><p>Strong commitment to writing clean, maintainable, and testable code following best practices and design principles</p>
</li>
<li><p>Strong analytical and problem-solving abilities</p>
</li>
<li><p>Ability to learn new methods and processes</p>
</li>
<li><p>Adapting to changing project needs and priorities</p>
</li>
<li><p>Working knowledge of version source control systems such as Git</p>
</li>
<li><p>Fluent in English with excellent communication skills for technical discussions and collaboration</p>
</li>
<li>Availability to align with a Sunday&ndash;Thursday working schedule</li>
</ul></div><h3 class="jobSectionHeader"><b>Nice to have</b></h3><div>
<ul>
<li><p>Knowledge of demonstrable coding skills using Xcode</p>
</li>
<li><p>Knowledge of design patterns and software architectures</p>
</li>
<li><p>Expertise in REST APIs and JSON data structure</p>
</li>
<li><p>Continuous integration and continuous delivery methodologies and tools</p>
</li>
</ul></div><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 iOS Engineer

Keyrock

<div><h1 class="jobSectionHeader"><b>Senior Data Engineer</b></h1><p></p><h1 class="jobSectionHeader"><b>
About Keyrock</b></h1><p>
Since our beginnings in 2017, we've grown to be a leading change-maker in the digital asset space, renowned for our partnerships and innovation.</p><p>
Today, we partner with over 250 team members around the world. Our diverse team hails from 42 nationalities, with backgrounds ranging from self-taught DeFi natives to PhDs. Predominantly remote, we have hubs in London, Brussels, and Singapore, and host regular online and offline hangouts to keep the crew tight.</p><p>
We are trading on more than 80 trading venues, and working with a wide array of asset issuers. As a well-established market maker, our distinctive expertise led us to expand rapidly. Today, our services span market making, options trading, high-frequency trading, OTC, and DeFi trading desks.</p><p>
But we&rsquo;re more than a service provider. We&rsquo;re an initiator. We're pioneers in adopting the Rust Development language for our algorithmic trading, and champions of its use in the industry. We support the growth of Web3 startups through our Accelerator Program. We upgrade ecosystems by injecting liquidity into promising DeFi, RWA, and NFT protocols. And we push the industry's progress with our research and governance initiatives.</p><p>
At Keyrock, we're not just envisioning the future of digital assets. We're actively building it.</p><p></p><h2 class="jobSectionHeader"><b>
About the team and why the role exists</b></h2><p>
The Central Data Team (CDT) is only a few months old, but data has been Keyrock's lifeblood since day one. We're now building the Keyrock Data Platform to give Keyrockers, and the AI agents working alongside them, the data and context they need to act fast and autonomously within agreed boundaries and aligned with our shared goals. Doing that means taking data from across the company and making sense of it in real time for all the functions that depend on it: trading desks, wealth and asset management, product, risk, finance, compliance, and research to name a few.</p><p>
You'd be one of the early hires in CDT and we expect you to contribute to most of the bigger decisions and build work. The standards we settle on and the way the team ends up working are still open.</p><p></p><h2 class="jobSectionHeader"><b>
What You&rsquo;ll Do</b></h2><ul><li><p>
Build streaming and batch pipelines that ingest, normalise, and distribute market, trading, and portfolio data, resilient to feed and exchange failures.</p></li><li><p>
Build the self-serve tooling (SDKs, patterns, templates, AI agents) so other teams publish, consume, and build on data products without waiting on us.</p></li><li><p>
Own data contracts and schema evolution. Keep schema changes from turning into multi-team coordination events.</p></li><li><p>
Design the lakehouse and time-series layer around consumer query patterns.</p></li><li><p>
Build and evolve the Data Governance and Data Quality Framework: stale-feed detection, schema validation, range checks, idempotent writes, lineage, ownership, self-healing.</p></li><li><p>
Build the derived analytics the business runs on: cross-exchange spreads, VWAP at depth, order book microstructure for the desks; portfolio views, exposure, performance for wealth and asset management.</p></li><li><p>
Make observability, cost, and performance first-class from day one.</p></li><li><p>
Treat infrastructure as code (Docker, Terraform, CI/CD) alongside our Central Infrastructure Team.</p></li><li><p>
Work in the open: write things down, partner closely with Architecture, Infrastructure, Platform, and the rest of the teams.</p></li></ul><p></p><h2 class="jobSectionHeader"><b>
What We&rsquo;re Looking For</b></h2><p>
Tools matter less to us than how you think about problems. That said, here's the shape of the person we have in mind.</p><p>
Engineering Craft</p><ul><li><p>
8+ years of building production data systems that other people rely on.</p></li><li><p>
Strong proficiency in Python and SQL: not just being able to write a query, but being able to reason about what the engine is doing with it.</p></li><li><p>
Code that's easy for someone else to read, test, and delete later.</p></li><li><p>
Strong understanding of data modelling for both streaming and analytical workloads.</p></li><li><p>
Efficiency, quality, idempotency, and observability are taken seriously by default.</p></li></ul><p>
Systems Design</p><ul><li><p>
You've designed and operated streaming systems on Kafka, Redpanda, MSK, or Kinesis, and you have opinions about partitioning, consumer groups, offsets, and schema registries.</p></li><li><p>
You've used a time-series store in production (ClickHouse ideally; TimescaleDB, QuestDB, or similar are fine too) and can talk about table design as a function of query patterns.</p></li><li><p>
You've worked with a lakehouse architecture and reason about table layout, partitioning, and compaction as design choices that shape query performance and storage cost.</p></li><li><p>
You build for self-healing and idempotency. Reprocessing is safe, retries don't double-write, and the system recovers without a human in the loop.</p></li></ul><p>
Operational Readiness</p><ul><li><p>
Docker, Terraform, and CI/CD are how you work, not a separate &quot;DevOps&quot; thing.</p></li><li><p>
You think about cost and performance early.</p></li><li><p>
You instrument as you build: logs, metrics, and traces are part of the system from day one.</p></li><li><p>
You design for data quality and governance up front covering contracts, validation, lineage, and ownership</p></li></ul><p>
How You Think and Work</p><ul><li><p>
You reason from first principles when a problem is new, stay pragmatic when it isn't, and update your view when you learn more.</p></li><li><p>
You treat the trading desks, wealth and asset management, product, risk, finance, compliance, and research as customers of what you build, and communicate with them that way.</p></li><li><p>
You optimise for outcomes over output. A smaller, simpler thing that ships and works beats a bigger thing that doesn't.</p></li><li><p>
You take ownership end-to-end: design, ship, operate, improve.</p></li><li><p>
You say what you think including when it's an unpopular take. You change your mind when the argument is better.</p></li><li><p>
You make the people around you better. Reviews are real, juniors grow from working with you, and peers want to work with you again.</p></li><li><p>
You're curious about how markets work. Data engineering on its own won't keep you interested here.</p></li><li><p>
You're honest about what you know and what you don't, and quick to close the gap.</p></li><li><p>
You understand financial market data: order books, trades, reference data, portfolios, exposures. Crypto, TradFi, or both are a strong plus.</p></li></ul><p></p><h2 class="jobSectionHeader"><b>
Nice to Have</b></h2><ul><li><p>
Lakehouse experience with Apache Iceberg or Delta Lake.</p></li><li><p>
Familiarity with DataHub or similar metadata/lineage platforms.</p></li><li><p>
Rust. Some of our performance-critical services are written in it. Interest is welcome; fluency isn't required.</p></li></ul><p></p><h2 class="jobSectionHeader"><b>
What You&rsquo;ll Get</b></h2><ul><li><p>
A from-scratch mandate. You'll be among the first hires in CDT, and the platform, the standards, and the team culture are yours to shape with us.</p></li><li><p>
Strong partners. Close working relationships with Architecture, Infrastructure, Platform, and the desks themselves. You won't be building data in a vacuum.</p></li><li><p>
Autonomy on how you work. Flexible hours, remote-first, business-hours on-call shared across the team.</p></li><li><p>
A competitive salary package, with various benefits.</p></li><li><p>
A team that likes each other. Regular online get-togethers and a yearly onsite where everyone's in the same room.</p></li></ul><p></p><h2 class="jobSectionHeader"><b>
Our Recruitment Process</b></h2><p>
We&rsquo;re after those with the right skills and a conscious choice to join our field. The perfect fit? Someone who&rsquo;s driven, collaborative, acts with ownership and delivers solid, scalable outcomes. As an employer we are committed to building a positive and collaborative work environment. We welcome employees of all backgrounds, and hire, reward and promote entirely based on merit and performance. Due to the nature of our business and external requirements, we perform background checks on all potential employees, passing which is a prerequisite to join Key</p></div>

Senior Data Engineer

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