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software development engineer Jobs in Istanbul

software development engineer

senior java developer

TELPA A.Ş.

<div>
 We are hiring Senior/Expert Java Developers.
 <br/>
 <br/>
 Bachelor of Science in Engineering
 <br/>
 <br/>
 Development experience in more than 5 years Java related technologies,
 <br/>
 <br/>
 Microservice development experience would be preferable,
 <br/>
 <br/>
 Experienced with RDBMS ( MySQL, PostgreSQL, Oracle etc.) is essential,
 <br/>
 <br/>
 Spring framework / Spring Boot knowledge is essential,
 <br/>
 <br/>
 Development in Linux environment and knowledge on Spark, Kafka, Redis and Elasticsearch would be helpful,
 <br/>
 <br/>
 Comprehensive knowledge of web-based applications and REST services with Spring
 <br/>
 <br/>
 Framework experience
 <br/>
 <br/>
 Being able to work with remote and site teams effectively.
 <br/>
 <br/>
 <strong>
  Requirements
  <br/>
  <br/>
 </strong>
 Good command of written and spoken English,
 <br/>
 <br/>
 Agile oriented; focused on delivery and customer first,
 <br/>
 <br/>
 Adaptive; responsive, communicative
 <br/>
 <br/>
 Eager on self-improvement,
</div>


Senior Java Developer

Innovance Consultancy

<div>
 <p>
  We are looking for hands-on &ldquo;
  <strong>
   Senior
  </strong>
  <strong>
   Java Developers
  </strong>
  &rdquo; who love programming, architecting solutions, and solving complex integration problems. The job is hybrid, we expect the candidates to live in
  <strong>
   Istanbul.
  </strong>
  Join us if you possess the ability to work as a member of a highly skilled team in a dynamic environment and participate in systems design, code development, unit testing, code reviews, debugging, integration, and testing of modifications &amp; enhancements.
 </p>
 <p>
  <br/>
 </p>
 <p>
  <strong>
   What Are The Required Qualifications?
  </strong>
 </p>
 <ul>
  <li>
   Bachelor's Degree in a related field, Master&rsquo;s degree is a plus
  </li>
  <li>
   8+ years of hands-on Java development experience with Java 8+
  </li>
  <li>
   Strong experience with Spring framework using Spring Boot, Spring Security, Spring Session, and Spring Data
  </li>
  <li>
   Experience with Git, Maven
  </li>
  <li>
   Experience with Unit Test Frameworks
  </li>
  <li>
   Experience with SQL, NoSQL DB, JPA, and Hibernate
  </li>
  <li>
   Experience with RESTful API design, SOAP, and XML
  </li>
  <li>
   Ability to think creatively in problem-solving, debugging, object-oriented design, data structures, and algorithms
  </li>
  <li>
   Ability to clearly communicate with peers, Business Analysts, and Subject Matter Experts
  </li>
  <li>
   Taking ownership of your work by meeting deadlines, foreseeing delays, and raising issues appropriately
  </li>
  <li>
   Ability to work collaboratively in a team setting
  </li>
 </ul>
 <p>
  <br/>
 </p>
 <p>
  <strong>
   Bonus Points:
  </strong>
 </p>
 <ul>
  <li>
   Experience with Microservices, Kubernetes, Spring Cloud, Kafka, RabbitMQ, Redis, Bitbucket, and Gradle is a plus
  </li>
  <li>
   Working knowledge of CI/CD technologies such as SonarQube and Jenkins is a plus
  </li>
  <li>
   Knowledge of cloud services such as Azure and AWS is a plus
  </li>
  <li>
   Basic knowledge of JavaScript and HTML5 is a plus
  </li>
  <li>
   Experience in Agile Development methodologies is a plus (Scrum, Kanban, etc.)
  </li>
 </ul>
 <p>
  <br/>
 </p>
 <p>
  <strong>
   <em>
    For details:
   </em>
  </strong>
 </p>
 <ul>
  <li>
   Visit: www.innovance.com.tr
  </li>
  <li>
   Follow us on LinkedIn: www.linkedin.com/company/innovance-consultancy
  </li>
  <li>
   Follow us on Instagram: www.instagram.com/innovanceconsultancy
  </li>
  <li>
   Follow us on Medium: www.medium.com/innovance-company-blog
  </li>
  <li>
   Follow us on X: https://x.com/Innovance2017
  </li>
  <li>
   Follow us on Threads: www.threads.net/@innovanceconsultancy
  </li>
 </ul>
</div>


Amaris Consulting

Job description
<br><br>
We are looking for a Senior Java Developer to join our technology team and contribute to building scalable, high-quality software solutions. You will collaborate with cross-functional teams and play a key role in delivering impactful products throughout the development lifecycle.
<br><br>
<b>Key Responsibilities:</b><br>
Design, develop, and maintain scalable and high-quality software solutions
<br><br>
Take full ownership of projects and drive them end to end
<br><br>
Collaborate with cross-functional teams including product, QA, and design
<br><br>
Mentor junior developers and contribute to technical decision-making
<br><br>
<b>Requirements:</b><br>
Strong experience in Java and related backend technologies
<br><br>
Proven experience working on end-to-end (E2E) projects, from initial analysis to deployment and maintenance
<br><br>
Ability to own a project from A to Z, including design, development, testing, and production support
<br><br>
Solid understanding of software architecture, design patterns, and best practices
<br><br>
Experience with RESTful APIs, microservices, and database technologies
<br><br>
Familiarity with agile development methodologies
<br><br>
<b>Nice to Have (Highly Preferred):</b><br>
Mobile application development experience (Android, iOS, or cross-platform)
<br><br>
Experience integrating backend services with mobile applications
<br><br>
Knowledge of CI/CD pipelines and cloud platforms
<br><br>
If you are a self-driven developer who enjoys taking responsibility and delivering complete solutions, we would love to hear from you.
<br><br>
Amaris Consulting is committed to promoting diversity within its workforce and to creating an inclusive work environment. We consider applications from all qualified individuals, regardless of gender, sexual orientation, race, ethnic origin, beliefs, age, marital status, disability, or any other characteristic.
<br>Special attention will be given to candidates with disabilities.
<br><br>
Who are we?
<br>Amaris Consulting is an independent technology consulting firm providing guidance and solutions to businesses. With more than 1000 clients across the globe, we have been rolling out solutions in major projects for over a decade – this is made possible by an international team of 7,600 people spread across 5 continents and more than 60 countries. Our solutions focus on four different Business Lines: Information System & Digital, Telecom, Life Sciences and Engineering. We’re focused on building and nurturing a top talent community where all our team members can achieve their full potential. Amaris is your steppingstone to cross rivers of change, meet challenges and achieve all your projects with success.
<br><br>
At Amaris, we strive to provide our candidates with the best possible recruitment experience. We like to get to know our candidates, challenge them, and be able to give them proper feedback as quickly as possible. Here's what our recruitment process looks like:
<br><br>
<b>Brief Call:</b> Our process typically begins with a brief virtual/phone conversation to get to know you! The objective? Learn about you, understand your motivations, and make sure we have the right job for you!
<br><br>
Interviews (the average number of interviews is 3 - the number may vary depending on the level of seniority required for the position). During the interviews, you will meet people from our team: your line manager of course, but also other people related to your future role. We will talk in depth about you, your experience, and skills, but also about the position and what will be expected of you. Of course, you will also get to know Amaris: our culture, our roots, our teams, and your career opportunities!
<br><br>
<b>Case study:</b> Depending on the position, we may ask you to take a test. This could be a role play, a technical assessment, a problem-solving scenario, etc.
<br><br>
As you know, every person is different and so is every role in a company. That is why we have to adapt accordingly, and the process may differ slightly at times. However, please know that we always put ourselves in the candidate's shoes to ensure they have the best possible experience.
<br>We look forward to meeting you!

Senior Java Developer (Hybrid)

Şanstech

<div>
 <p>
  Location: Onsite, Istanbul/Maslak
 </p>
 <p>
  <br/>
 </p>
 <p>
  Description:
 </p>
 <p>
  <br/>
 </p>
 <p>
  We are seeking a Backend Developer to provide technical leadership and mentor a team of developers in designing and developing high-performance, scalable backend systems. The ideal candidate should have hands-on experience in building distributed systems, event-driven architectures, and microservices while ensuring the highest code quality and system reliability.
 </p>
 <p>
  <br/>
 </p>
 <p>
  Responsibilities:
 </p>
 <p>
  <br/>
 </p>
 <p>
  Lead and mentor a backend development team, ensuring best practices and high coding standards.
 </p>
 <p>
  Design and implement scalable and high-performance backend architectures.
 </p>
 <p>
  Actively participate in coding and software development to build scalable and high-performance backend architectures.
 </p>
 <p>
  Develop event-driven and distributed systems using message queues (Kafka, RabbitMQ, etc.).
 </p>
 <p>
  Optimize and manage relational (SQL) and non-relational (NoSQL) databases for high availability and performance.
 </p>
 <p>
  Utilize caching mechanisms (Redis, Memcached, etc.) to enhance system efficiency.
 </p>
 <p>
  Conduct code reviews and architectural discussions to maintain quality and scalability.
 </p>
 <p>
  Collaborate with cross-functional teams to align technical decisions with business needs.
 </p>
 <p>
  Stay updated with new technologies and incorporate them into the project when necessary.
 </p>
 <p>
  Work efficiently in an Agile/Scrum environment, participating in sprint planning, daily stand-ups, and retrospectives.
 </p>
 <p>
  <br/>
 </p>
 <p>
  Qualifications:
 </p>
 <p>
  <br/>
 </p>
 <p>
  Bachelor's degree in Computer Engineering, Computer Science, or a related field.
 </p>
 <p>
  At least 5 years of experience in backend development.
 </p>
 <p>
  Strong expertise in Java and Spring Boot.
 </p>
 <p>
  Hands-on experience with Aspect-Oriented Programming (AOP), preferably in Java with Spring AOP.
 </p>
 <p>
  Hands-on experience with microservices architecture.
 </p>
 <p>
  Proficiency in event-driven development and messaging systems (Kafka, RabbitMQ, etc.).
 </p>
 <p>
  Strong understanding of software security principles and experience in implementing secure coding practices.
 </p>
 <p>
  Experience working with SQL and NoSQL databases.
 </p>
 <p>
  Familiarity with caching mechanisms to optimize performance.
 </p>
 <p>
  Ability to thrive in a fast-paced, high-traffic system environment.
 </p>
 <p>
  <br/>
 </p>
 <p>
  Preferred Qualifications:
 </p>
 <p>
  <br/>
 </p>
 <p>
  Experience in high-traffic systems such as sports betting, e-commerce, or fintech.
 </p>
 <p>
  Knowledge of DevOps and CI/CD processes.
 </p>
 <p>
  Experience with cloud computing platforms (AWS, GCP, Azure).
 </p>
 <p>
  Familiarity with observability tools (Prometheus, Grafana, ELK Stack, NewRelic).
 </p>
 <p>
  <br/>
 </p>
 <p>
  What We Offer:
 </p>
 <p>
  <br/>
 </p>
 <p>
  Opportunities for technical and professional growth.
 </p>
 <p>
  A collaborative and dynamic work environment.
 </p>
 <p>
  <br/>
 </p>
 <p>
  <br/>
 </p>
 <p>
  Linkedin &uuml;zerinden elektronik olarak iletece&gbreve;iniz ki&scedil;isel bilgileriniz, &Scedil;anstech b&uuml;nyesinde olu&scedil;acak mevcut ve gelecek i&scedil;e al&inodot;m ihtiya&ccedil;lar&inodot; do&gbreve;rultusunda istihdam olanaklar&inodot;n&inodot;n de&gbreve;erlendirilmesi amac&inodot;yla 7 Nisan 2016 tarihli Resmi Gazete&rsquo;de yay&inodot;mlanan 6698 say&inodot;l&inodot; Ki&scedil;isel Verilerin Korunmas&inodot; Kanunu kapsam&inodot;nda veri sorumlusu olarak taraf&inodot;m&inodot;zca i&scedil;lenecek ve veri taban&inodot;m&inodot;zda gizlilik i&ccedil;erisinde saklanacakt&inodot;r. Detayl&inodot; bilgiye internet sitemizde (https://www.sans-technology.com/kvkk) Ayd&inodot;nlatma Metni i&ccedil;erisindeki &ldquo;&Ccedil;al&inodot;&scedil;an Aday&rdquo; alt ba&scedil;l&inodot;&gbreve;&inodot;ndan ula&scedil;abilirsiniz.
 </p>
</div>


Backend Developer

<p></p><div><div><div><div><div><div><h1 class="jobSectionHeader"><b>Control Systems Simulation and Calibration Engineer</b></h1><br>
<p></p><p><b>YOUR RESPONSIBILITIES:</b></p><br>
<p></p>
<p></p><ul><li>For a better future and for the sake of our nature, optimize vehicle and powertrain control systems parameters to improve safety, emissions &amp; fuel economy along with the joy of performance and drivability.</li>
<li>Use your creativity to develop new Smart Calibration processes and tools.</li>
<li>Develop simulation platforms and methodologies for future technologies (electrification, H2 solutions, ADAS, fuel cell vehicles, etc)</li>
<li>Reflect your system and domain knowledge with KPI and requirement generation along with test case development and analysis</li>
<li>Travel the world for environmental tests in different and exciting locations (e.g. USA, Italy, Finland, Spain)</li>
<li>Work with AVL Global experts to keep up with latest technologies and industry trends.</li></ul><br>
<p></p>
<p>
</p><p><b>YOUR PROFILE:</b></p><br>
<p></p>
<p></p><ul><li>BSc/MSc/PhD or equivalent engineering degree in electric/electronic, controls, mechatronics, automotive, mechanical engineering or related technical field is preferred</li>
<li>Minimum 2 years of professional experience in R&amp;D and product development projects</li>
<li>Good understanding in one or more of the following areas: electrified &amp; hybrid powertrain technologies, ADAS/AD, transmissions, engine and aftertreatment systems</li>
<li>Experience in in one or more of the following areas: Controller / Algorithm Design and Implementation, Optimization Methodologies, System Dynamics, Modeling, Data acquisition and Post-processing with Matlab/Simulink</li>
<li>Experience in Automotive Diagnostics and Network Communication platforms like CAN, LIN, Ethernet, etc</li>
<li>Having programming experience in any language (C#, Java, Phyton etc) is a plus</li>
<li>Fluent speaking and excellent writing skills in English (German, French or Italian would be a plus)</li></ul><br>
<p></p>
<p><b>
Interested?</b><br>
If so, please use our online application tool to send your application to AVL!</p>
</div></div></div></div><div><div><h2 class="jobSectionHeader"><b>About AVL</b></h2><p>
AVL is one of the world&rsquo;s leading mobility technology companies for development, simulation and testing in the automotive industry, and beyond. We provide concepts, solutions and methodologies in fields like vehicle development and integration, e-mobility, automated and connected mobility (ADAS/AD), and software for a greener, safer, better world of mobility.</p>
<p>Find out more: www.avl.com</p>
</div></div><div><div><h2 class="jobSectionHeader"><b>You are interested in a job at AVL but you are not sure how to apply or want to know what happens after you send your application?</b></h2><p><b>
Check out our step-by-step guide</b></p>
</div></div><div><div><h2 class="jobSectionHeader"><b>AVL is not just about cars. It's about changing the future. Together.</b></h2>
</div></div></div><div><div><div><div><div>Location:
Istanbul, TR
</div></div></div></div><div><div><div><div>Company: AVL Research &amp; Engineering
</div></div></div></div><div><div><div><div>Job Function: Calibration
</div></div></div></div><div><div><div><div>Contract Type: Permanent
</div></div></div></div><div><div><div><div>Posting Date: Dec 23, 2025
</div></div></div></div><div><div><div><div>Job ID: 38828
</div></div></div></div><div><div><h2 class="jobSectionHeader"><b>About AVL</b></h2><p>
AVL is one of the world&rsquo;s leading mobility technology companies for development, simulation and testing in the automotive industry, and beyond. We provide concepts, solutions and methodologies in fields like vehicle development and integration, e-mobility, automated and connected mobility (ADAS/AD), and software for a greener, safer, better world of mobility.</p>
<p>Find out more: www.avl.com</p><br>
</div></div></div><p><br>
<b>Job Segment: </b>Mechanical Engineer, Controls Engineer, Developer, Java, Engineering, Automotive, Technology</p></div>

Control Systems Simulation and Calibration Engineer

Migros One

<div>
 <p>
  <strong>
   Who are we?
  </strong>
 </p>
 <p>
  Our business is technology, food and retail. We are a young team that combines all resources with technology; Our goal is to provide an excellent e-commerce service to meet your needs. In short, you can call us Migros One. 😉
 </p>
 <p>
  <br/>
 </p>
 <p>
  Today, as a team that holds the
  <strong>
   &ldquo;Great Place To Work&rdquo;
  </strong>
  certificate with the contributions of our employees we produce, learn and develop together. We rediscover our passion for our business every day and build Migros One culture together.
 </p>
 <p>
  <br/>
 </p>
 <p>
  <strong>
   Our Culture
  </strong>
 </p>
 <p>
  We are #ONE to create a better tomorrow for our community. Our way of working includes four core values that we strive to act:
 </p>
 <p>
  1. Take accountability with passion
 </p>
 <p>
  2. Drive innovation with curiosity
 </p>
 <p>
  3. Make a difference for our customers
 </p>
 <p>
  4. Create open communication
 </p>
 <p>
  <br/>
 </p>
 <p>
  We live these values every day and create an environment where everyone enjoys working. Our business culture based on trust, openness and innovation has been recognized with our
  <strong>
   &ldquo;Great Place To Work&rdquo;
  </strong>
  certificate!
 </p>
 <p>
  <br/>
 </p>
 <p>
  <strong>
   What Do We Do?
  </strong>
 </p>
 <p>
  As Migros One; We spread happiness in being the pioneer of innovation in the field of food and retail technology with our brands
  <strong>
   Migros Sanal Market, Migros Hemen, Migros Extra, Migros Yemek, Macroonline, Tazedirekt, Mion and Petimo!
  </strong>
 </p>
 <p>
  <br/>
 </p>
 <p>
  Our determination to find fast and effective solutions always keeps us one step ahead. Our team's passion and energy make their jobs enjoyable.
 </p>
 <p>
  <br/>
 </p>
 <p>
  Thanks to our people-oriented approach, we aim to create a more comfortable and practical world for everyone by using them all. We constantly strive to provide the best experience to our consumers and employees!As Migros One team, we get excited with every member of our team creating his/her own career story!
 </p>
 <p>
  <br/>
 </p>
 <p>
  If you would like to be a part of this visionary and tech-savvy e-commerce team, don&rsquo;t wait! Make your application!
 </p>
 <p>
  <br/>
 </p>
 <p>
  We are looking for
  <strong>
   Expert Java Developer
  </strong>
  who will be on our team.
 </p>
 <p>
  <br/>
 </p>
 <p>
  <strong>
   What You'll Be Doing:
  </strong>
 </p>
 <p>
  <br/>
 </p>
 <ul>
  <li>
   Contributing the software development lifecycle. (technical design, implementation, testing, deployment, and monitoring.),
  </li>
  <li>
   Identification ability of engineering bottlenecks and discussing potential solutions. (redact RFC and ADR documents.),
  </li>
  <li>
   Responsible for the quality assurance of the work we work on,
  </li>
  <li>
   Applying a product mindset to back-end systems,
  </li>
  <li>
   Regularly presenting new ideas and techniques in Brown Bag Sessions,
  </li>
  <li>
   Improving the System Design of the solution architecture on production.
  </li>
 </ul>
 <p>
  <br/>
 </p>
 <p>
  <strong>
   What You'll Bring:
  </strong>
 </p>
 <p>
  <br/>
 </p>
 <ul>
  <li>
   Minimum 3 years of experience as a back-end engineer,
  </li>
  <li>
   Production experience with Java 21 (11 or 17 is also fine), REST Conventions, Redis and Docker,
  </li>
  <li>
   Hands-on implementation practice of Object-Oriented Design Patterns is a must,
  </li>
  <li>
   Familiarity of security concepts and methodologies is a nice-to-have. (OAuth2, OIDC, Authorization Code Flow, etc.),
  </li>
  <li>
   Knowledge of Messaging Solutions (RabbitMQ, Apache Kafka, or similar) is required,
  </li>
  <li>
   Knowledge of Microservices Patterns is a plus,
  </li>
  <li>
   Experience with AWS, GCP, OpenShift, Azure or similar is highly desired,
  </li>
  <li>
   Experience with Clean or Hexagonal Architecture is a nice-to-have,
  </li>
  <li>
   Domain-Driven Design is a nice-to-have. (Tactical DDD, Aggregate Design Rules, Eventual and Strong Consistency, etc.),
  </li>
  <li>
   Knowledge of Microservices Patterns is a nice-to-have. (Transactional Outbox, Data Consistency with Saga.),
  </li>
  <li>
   Unit, Integration and E2E test knowledge is a plus.
  </li>
 </ul>
</div>


Java Developer

Cypher Games

<div>
 At Cypher Games, our backend systems are the invisible engine that powers millions of joyful player moments. As a Backend Developer, you&rsquo;ll build the scalable architectures and reliable services that bring our games to life. From designing core systems to optimizing live operations, your work will ensure smooth, seamless, and unforgettable experiences for players around the world.
 <br/>
 <br/>
 If you love crafting robust code, enjoy tackling complex technical challenges, and want to shape the foundation of games played by millions, we&rsquo;d be thrilled to have you join our team.
 <br/>
 <br/>
 <strong>
  Responsibilities
  <br/>
  <br/>
 </strong>
 <ul>
  <li>
   Design, build, and maintain scalable backend systems for our mobile games
  </li>
  <li>
   Develop and optimize core services that power live game operations
  </li>
  <li>
   Write clean, testable, and maintainable code while applying OOP and design pattern principles
  </li>
  <li>
   Collaborate closely with product, game, and art teams to create seamless player experiences
  </li>
  <li>
   Monitor live game services and ensure performance, stability, and scalability
  </li>
  <li>
   Contribute ideas to improve our tools, architecture, and engineering culture
   <br/>
   <br/>
   <br/>
  </li>
 </ul>
 <strong>
  Requirements
  <br/>
  <br/>
 </strong>
 <ul>
  <li>
   3+ years of backend development experience
  </li>
  <li>
   Strong understanding of C#, ASP.NET Core, and SignalR for real-time systems
  </li>
  <li>
   Experience with MongoDB / Redis / AWS or equivalent technologies
  </li>
  <li>
   Experience with asynchronous programming and handling high-concurrency scenarios
  </li>
  <li>
   Solid grasp of OOP, design patterns, and software architecture
  </li>
  <li>
   Strong problem-solving skills and attention to performance optimization
  </li>
  <li>
   Eagerness to learn, share, and grow in a collaborative environment
  </li>
  <li>
   Passion for games; you love building systems that make play possible!
   <br/>
   <br/>
   <br/>
  </li>
 </ul>
 <strong>
  Nice to Have
  <br/>
  <br/>
 </strong>
 <ul>
  <li>
   Experience in mobile game backend systems
  </li>
  <li>
   Knowledge of concurrency, distributed systems, or multiplayer architecture
  </li>
  <li>
   Experience with additional programming languages (e.g., Go, Python, Java).Familiarity with Docker, Terraform, or infrastructure as code
  </li>
  <li>
   Experience with observability tools (OpenTelemetry, Prometheus, Jaeger)
  </li>
  <li>
   Experience with AI-assisted development and a critical eye for code quality
   <br/>
   <br/>
   <br/>
  </li>
 </ul>
 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.
</div>


Explore 253+ Senior java developer in Istanbul this January. Find roles across top companies and apply now to boost your career.

253 senior java developer jobs IN Istanbul

Senior Java Developer

Senior Java Developer

Senior Java Developer (Hybrid)

Backend Developer

Control Systems Simulation and Calibration Engineer

Java Developer

Backend Developer