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senior software engineer Jobs in Istanbul

senior software engineer

full stack web developer

InoTrade

<div>
 
 
 Location:
 
 &Idot;stanbul/Ankara
 
 
 
 
 
 
 About InoTrade
 
 
 
 
 
 At InoTrade, we shape the future of global commerce by leading in AI-driven innovation. By combining advanced AI capabilities with deep industry expertise, we transform complexity into clarity and deliver solutions that drive meaningful, lasting impact.
 
 
 What makes this possible is our people. We bring together AI experts, engineers, researchers, and industry leaders who thrive on collaboration and curiosity. United by a passion for solving the toughest challenges, our team creates breakthroughs that push the boundaries of technology and business.
 
 
 
 
 
 Role
 
 
 
 
 
 
 We are seeking a highly skilled Full Stack Developer who will play a pivotal role across both frontend and backend development within our engineering team. We are looking for a colleague who takes genuine pride in crafting scalable, secure, and exceptionally high-performance applications, and who thrives on leveraging modern web technologies to build elegant, reliable, and future-ready systems.
 
 
 
 
 
 
 Responsibilities
 
 
 
 
 
 <ul>
 <li>
 End-to-end development and maintenance of web applications
 </li>
 <li>
 Designing and integrating backend APIs, and developing scalable, high-performance, and secure services
 </li>
 <li>
 Designing frontend interfaces using modern frameworks and ensuring an intuitive user experience
 </li>
 <li>
 Ensuring compliance with database design, query optimization, and management standards
 </li>
 <li>
 Maintaining code quality, test processes, continuous improvement, and documentation
 </li>
 <li>
 Maintaining, improving, and debugging existing projects
 </li>
 <li>
 Collaborating closely with UX/UI teams and AI/Machine Learning engineers to ensure system integration
 </li>
 <li>
 Contributing to DevOps processes (CI/CD, containerization, etc.)
 </li>
 <li>
 Staying up-to-date with the latest developments and best practices in Full Stack development technologies
 </li>
 </ul>
 
 
 
 
 
 Required Qualifications
 
 
 
 
 
 <ul>
 <li>
 Minimum 5 years of experience as a Full Stack Developer
 </li>
 <li>
 Proficiency in most of the following technologies:
 </li>
 </ul>
 
 Frontend: React, Vue, Angular, TypeScript, HTML5, CSS3
 
 
 Backend: Experience with at least one modern backend technology such as Node.js, .NET/C#, Java, Python
 
 
 Databases: PostgreSQL, MySQL, MongoDB
 
 
 DevOps: Docker, Kubernetes, CI/CD tools
 
 <ul>
 <li>
 Experience in building RESTful or GraphQL APIs
 </li>
 <li>
 Hands-on experience in unit testing processes
 </li>
 <li>
 Strong understanding of OOP principles, software design patterns, and Clean Architecture
 </li>
 <li>
 Practical knowledge of queue/messaging infrastructures such as RabbitMQ or Kafka
 </li>
 <li>
 Proficiency with Git version control
 </li>
 <li>
 Ability to write clean code and follow SOLID principles
 </li>
 <li>
 Experience working in Agile/Scrum environments
 </li>
 <li>
 Strong problem-solving skills and ability to work collaboratively in a team
 </li>
 </ul>
 
 
 
 
 
 Preferred Qualifications
 
 
 
 
 
 <ul>
 <li>
 Experience with cloud platforms (AWS, Azure, GCP)
 </li>
 <li>
 Experience working with microservice architectures
 </li>
 <li>
 Familiarity with test automation tools (Jest, Cypress, NUnit, etc.)
 </li>
 <li>
 Advanced knowledge of DevOps pipelines
 </li>
 </ul>
 
 
 
</div>

Full Stack Developer

HumanCo Consulting

<div>
 
 Be&scedil;ikta&scedil; lokasyonunda yer alan, sekt&ouml;r&uuml;n&uuml;n &ouml;nc&uuml; firmalar&inodot;ndan biri olan m&uuml;&scedil;terimiz i&ccedil;in
 
 ''Full Stack
 
 
 Developer''
 
 ar&inodot;yoruz.
 
 
 
 
 
 
 Genel Nitelikler
 
 
 <ul>
 <li>
 &Uuml;niversitelerin ilgili b&ouml;l&uuml;mlerinden mezun (Bilgisayar M&uuml;hendisli&gbreve;i, Yaz&inodot;l&inodot;m M&uuml;hendisli&gbreve;i, Bilgisayar Programc&inodot;l&inodot;&gbreve;&inodot; vb.)
 </li>
 <li>
 PHP ile en az 4 y&inodot;l &ccedil;al&inodot;&scedil;ma deneyimi
 </li>
 <li>
 MySQL veya PostgreSQL ile &ccedil;al&inodot;&scedil;ma tecr&uuml;besi
 </li>
 <li>
 Nuxt3, Vue.js veya benzeri modern bir frontend framework&rsquo;&uuml;ne hakim
 </li>
 <li>
 REST API yap&inodot;s&inodot; ve temel entegrasyonlar konusunda deneyimli
 </li>
 <li>
 Git kullan&inodot;m&inodot;na al&inodot;&scedil;k&inodot;n
 </li>
 <li>
 Redis hakk&inodot;nda temel bilgi sahibi olmak tercih sebebidir
 </li>
 <li>
 Node.js / TypeScript teknolojilerine a&scedil;inal&inodot;k avantaj sa&gbreve;lar
 </li>
 <li>
 Analitik d&uuml;&scedil;&uuml;nce yap&inodot;s&inodot; g&uuml;&ccedil;l&uuml;, &ccedil;&ouml;z&uuml;m odakl&inodot; &ccedil;al&inodot;&scedil;ma prensibine sahip
 </li>
 <li>
 Tak&inodot;m &ccedil;al&inodot;&scedil;mas&inodot;na yatk&inodot;n, ileti&scedil;im becerileri g&uuml;&ccedil;l&uuml;
 </li>
 <li>
 Web teknolojilerini yak&inodot;ndan takip eden
 </li>
 <li>
 Docker veya benzeri container teknolojileri konusunda deneyimli
 </li>
 <li>
 AWS, GCP veya Azure gibi bulut altyap&inodot;lar&inodot;nda &ccedil;al&inodot;&scedil;ma tecr&uuml;besi
 </li>
 <li>
 Mikroservis mimarisi hakk&inodot;nda bilgi sahibi
 </li>
 <li>
 Test otomasyon s&uuml;re&ccedil;lerine hakim
 </li>
 </ul>
 
 
 
 
 
 G&ouml;rev ve Sorumluluklar
 
 
 <ul>
 <li>
 Mevcut ve yeni geli&scedil;tirilecek web ve mobil uygulamalar&inodot;n&inodot;n backend ve frontend geli&scedil;tirmelerini y&uuml;r&uuml;tmek
 </li>
 <li>
 API mimarisini tasarlamak, geli&scedil;tirmek ve iyile&scedil;tirmek
 </li>
 <li>
 Veritaban&inodot; tasar&inodot;m&inodot;, optimizasyonu ve performans iyile&scedil;tirmelerini ger&ccedil;ekle&scedil;tirmek
 </li>
 <li>
 Dijital &uuml;r&uuml;nler i&ccedil;in kullan&inodot;c&inodot; deneyimini geli&scedil;tirmeye y&ouml;nelik aray&uuml;z &ccedil;al&inodot;&scedil;malar&inodot; yapmak
 </li>
 <li>
 &Uuml;r&uuml;n ve tasar&inodot;m ekipleriyle koordineli &scedil;ekilde &ccedil;al&inodot;&scedil;arak projeleri zaman&inodot;nda teslim etmek
 </li>
 <li>
 Sistemlerin s&uuml;rd&uuml;r&uuml;lebilirli&gbreve;ini sa&gbreve;lamak ve teknik dok&uuml;mantasyon olu&scedil;turmak
 </li>
 <li>
 Mevcut altyap&inodot;n&inodot;n performans&inodot;n&inodot; art&inodot;rmaya y&ouml;nelik geli&scedil;tirme &ouml;nerileri sunmak
 </li>
 </ul>
</div>

Oredata Yazılım Anonim Şirketi

<div>OREDATA is a Digital Transformation &amp; IT Consulting firm with 10+ years of proven expertise and hundreds of successfully implemented projects across the EMEA region. When you join the OREDATA team, you'll be working hand-in-hand with experts focused on tackling digital, operational, analytical &amp; data science challenges with the greatest impact. We foster collaboration with proximity, an agile and autonomous approach and best practices and guiding principles.
Read more: https://medium.com/@oredata-engineering
Apply and be part of our exciting journey!
Key Responsibilities<ul>
<li>
Creating and designing the user interface of web applications to ensure a pleasant and intuitive user experience.</li>
<li>Implementing web pages using technologies with HTML, CSS, JavaScript, NextJS and React.</li>
<li>Building the server-side components of an application, including APIs, application logic, and server infrastructure.</li>
<li>Writing back-end code in Java and NodeJS.</li>
<li>Designing and managing databases to store and retrieve data efficiently. Common database technologies include MySQL, PostgreSQL and more.</li>
<li>Writing and executing unit tests, integration tests, and end-to-end tests to ensure the reliability and security of the application.</li>
<li>Continuously monitoring and optimizing the application's performance, scalability, and efficiency.</li>
<li>Stay up-to-date with emerging technologies and best practices in full-stack development.</li>
</ul>
Requirements<ul>
<li>
Bachelor's degree in Computer Science or a related field.</li>
<li>A minimum of 4+ years of overall experience in software development.</li>
<li>Proven experience as a Full Stack Engineer or similar role.</li>
<li>Proficiency in HTML, CSS, and JavaScript.</li>
<li>Minimum 1 year of experience with React, NextJS.</li>
<li>Minimum 2 years of experience with NodeJS.
</li><li>Minimum 3 years of experience with Java &amp; Spring Boot.</li>
<li>Strong back-end development and programming skills, using Java.</li>
<li>Database experience with MySQL, PostgreSQL or equivalent.</li>
<li>Familiarity with version control systems, especially Git.</li>
<li>Excellent problem-solving skills and attention to detail.</li>
<li>Ability to work both independently and as part of a collaborative team.</li>
<li>Strong communication skills and a passion for learning and adapting to new technologies.</li></ul></div>

Full Stack Engineer

Orion Innovation

<div>
 Orion Innovation is a premier, award-winning, global business and technology services firm. Orion delivers game-changing business transformation and product development rooted in digital strategy, experience design, and engineering, with a unique combination of agility, scale, and maturity. We work with a wide range of clients across many industries including financial services, professional services, telecommunications and media, consumer products, automotive, industrial automation, professional sports and entertainment, life sciences, ecommerce, and education.
 
 
 
 Full Stack Developer
 
 
 
 Seeking a Full Stack Developer with 5+ years of experience delivering cloud-native solutions using .NET, Azure, Kubernetes, Docker, SQL Server, Cosmos DB, and event-driven architectures. Must have strong experience with microservices, micro frontends, and modern front-end frameworks. Ability to leverage GitHub Copilot for high-quality, efficient development is required.
 
 
 
 Responsibilities
 
 
 
 <ul>
 <li>
 &emsp;&emsp;Build and maintain .NET APIs, microservices, and distributed components.
 </li>
 <li>
 &emsp;&emsp;Develop front-end applications and micro frontends using React/Angular, with strong focus on UI quality, responsiveness, accessibility, and reusable components.
 </li>
 <li>
 &emsp;&emsp;Integrate front-end code with backend APIs, event-driven workflows, and real-time updates.
 </li>
 <li>
 &emsp;&emsp;Deploy containerized applications using Docker and Kubernetes (AKS).
 </li>
 <li>
 &emsp;&emsp;Use Azure services such as App Services, Service Bus, EventHub, Key Vault, and API Management.
 </li>
 <li>
 &emsp;&emsp;Implement and optimize SQL Server and Cosmos DB data models.
 </li>
 <li>
 &emsp;&emsp;Write clean, testable, maintainable code while effectively leveraging GitHub Copilot.
 </li>
 <li>
 &emsp;&emsp;Contribute to architecture, CI/CD, code reviews, and performance tuning.
 
 
 
 </li>
 </ul>
 
 Required Skills
 
 
 
 <ul>
 <li>
 &emsp;&emsp;5+ years&rsquo; experience with C#, .NET Core/.NET 6+, REST APIs
 </li>
 <li>
 &emsp;&emsp;Strong hands-on experience with React/Angular and modern front-end engineering
 </li>
 <li>
 &emsp;&emsp;Proven delivery of microservices and micro frontend architectures
 </li>
 <li>
 &emsp;&emsp;Proficiency with Azure, Kubernetes, Docker
 </li>
 <li>
 &emsp;&emsp;Experience with SQL Server, Cosmos DB, and event-driven patterns
 </li>
 <li>
 &emsp;&emsp;Strong Git, CI/CD, and secure coding practices
 
 
 
 </li>
 </ul>
 
 Preferred Qualifications
 
 
 
 <ul>
 <li>
 &emsp;&emsp;Experience in Immigration, Global Mobility, Visa/Document workflows, or similar regulated processes.
 </li>
 <li>
 &emsp;&emsp;Experience supporting enterprise-scale platforms and multi-team Agile environments.
 </li>
 <li>
 &emsp;&emsp;Familiarity with modern product and delivery models (microservices, APIs, digital platforms).
 
 
 
 </li>
 </ul>
 
 Why Join Us
 
 
 
 <ul>
 <li>
 Contribute to a large-scale, mission-critical customer project using cutting-edge CI/CD and DevOps tools.
 </li>
 <li>
 Collaborate with global engineering teams in a modern, agile, and cloud-native environment.
 </li>
 <li>
 Drive automation, reliability, and continuous improvement across the software delivery lifecycle.
 
 
 
 </li>
 </ul>
 Orion is an equal opportunity employer, and all qualified applicants will receive consideration for employment without regard to race, color, creed, religion, sex, sexual orientation, gender identity or expression, pregnancy, age, national origin, citizenship status, disability status, genetic information, protected veteran status, or any other characteristic protected by law.
 
 
 Candidate Privacy Policy
 
 
 Orion Systems Integrators, LLC And Its Subsidiaries And Its Affiliates (collectively, &ldquo;Orion,&rdquo; &ldquo;we&rdquo; Or &ldquo;us&rdquo;) Are Committed To Protecting Your Privacy. This Candidate Privacy Policy (orioninc.com) (&ldquo;Notice&rdquo;) Explains
 
 
 <ul>
 <li>
 What information we collect during our application and recruitment process and why we collect it;
 </li>
 <li>
 How we handle that information; and
 </li>
 <li>
 How to access and update that information.
 
 
 
 </li>
 </ul>
 Your use of Orion services is governed by any applicable terms in this notice and our general Privacy Policy.
</div>

Fullstack Developer

<div><div>Orion Innovation is a premier, award-winning, global business and technology services firm. Orion delivers game-changing business transformation and product development rooted in digital strategy, experience design, and engineering, with a unique combination of agility, scale, and maturity. We work with a wide range of clients across many industries including financial services, professional services, telecommunications and media, consumer products, automotive, industrial automation, professional sports and entertainment, life sciences, ecommerce, and education.</div>
Full Stack Developer

Seeking a Full Stack Developer with 5+ years of experience delivering cloud-native solutions using .NET, Azure, Kubernetes, Docker, SQL Server, Cosmos DB, and event-driven architectures. Must have strong experience with microservices, micro frontends, and modern front-end frameworks. Ability to leverage GitHub Copilot for high-quality, efficient development is required. 

Responsibilities
<ul><li>Build and maintain .NET APIs, microservices, and distributed components.</li><li>Develop front-end applications and micro frontends using React/Angular, with strong focus on UI quality, responsiveness, accessibility, and reusable components.</li><li>Integrate front-end code with backend APIs, event-driven workflows, and real-time updates.</li><li>Deploy containerized applications using Docker and Kubernetes (AKS).</li><li>Use Azure services such as App Services, Service Bus, EventHub, Key Vault, and API Management.</li><li>Implement and optimize SQL Server and Cosmos DB data models.</li><li>Write clean, testable, maintainable code while effectively leveraging GitHub Copilot.</li><li>Contribute to architecture, CI/CD, code reviews, and performance tuning.</li></ul> 

Required Skills<div> 
<ul><li>5+ years' experience with C#, .NET Core/.NET 6+, REST APIs</li><li>Strong hands-on experience with React/Angular and modern front-end engineering</li><li>Proven delivery of microservices and micro frontend architectures</li><li>Proficiency with Azure, Kubernetes, Docker</li><li>Experience with SQL Server, Cosmos DB, and event-driven patterns</li><li>Strong Git, CI/CD, and secure coding practices</li></ul></div><div> 

Preferred Qualifications 
<ul><li>Experience in Immigration, Global Mobility, Visa/Document workflows, or similar regulated processes.</li><li>Experience supporting enterprise-scale platforms and multi-team Agile environments.</li><li>Familiarity with modern product and delivery models (microservices, APIs, digital platforms).</li></ul></div>

Why Join Us
<ul>
<li>Contribute to a large-scale, mission-critical customer project using cutting-edge CI/CD and DevOps tools.</li>
<li>Collaborate with global engineering teams in a modern, agile, and cloud-native environment.</li>
<li>Drive automation, reliability, and continuous improvement across the software delivery lifecycle.</li></ul><div> 
Orion is an equal opportunity employer, and all qualified applicants will receive consideration for employment without regard to race, color, creed, religion, sex, sexual orientation, gender identity or expression, pregnancy, age, national origin, citizenship status, disability status, genetic information, protected veteran status, or any other characteristic protected by law.

Candidate Privacy Policy

Orion Systems Integrators, LLC and its subsidiaries and its affiliates (collectively, &quot;Orion,&quot; &quot;we&quot; or &quot;us&quot;) are committed to protecting your privacy. This Candidate Privacy Policy (orioninc.com) (&quot;Notice&quot;) explains:
<ul>
<li>What information we collect during our application and recruitment process and why we collect it;</li>
<li>How we handle that information; and</li>
<li>How to access and update that information.</li>
</ul>
Your use of Orion services is governed by any applicable terms in this notice and our general Privacy Policy.</div></div>

Etstur

<div>
 
 In 1991, we embarked on a mission to offer outstanding service and competitive prices to those who love to travel. Over the past 30+ years, our guest-focused mindset and innovative spirit have helped shape the tourism industry in T&uuml;rkiye. As the country&rsquo;s leading travel and tourism company, we market thousands of hotels and proudly host top brands under the Etstur umbrella, including Didimtur, Jetset, Ucuzabilet.com, Otelpuan.com, HotelAgent, Odamax.com, Etscore, Etsevent and Let&rsquo;s Go Magazine.
 
 
 We&rsquo;re looking for talents to join us as we combine our industry expertise with technology and innovation to transform travel experiences and create user-friendly solutions.
 
 
 If you're ready to be part of a dynamic team in a fast-evolving sector and bring to life projects that will enhance how people travel, you&rsquo;re in the right place! Join us and let&rsquo;s design the holidays of the future together.
 
 
 
 
 
 
 Requirements
 
 
 
 
 
 <ul>
 <li>
 Preferably a graduate of Computer Engineering or Software Engineering
 </li>
 <li>
 3+ years of professional Java experience (design, develop, and maintain highly available and resilient applications)
 </li>
 <li>
 Experience with Spring Boot, Spring MVC, Spring Data JPA/JDBC
 </li>
 <li>
 Strong knowledge of ElasticSearch, Kafka, and Memcached, SQL and relational databases (PostgreSQL is a plus)
 </li>
 <li>
 Multithreading and asynchronous programming experience
 </li>
 <li>
 Understanding of REST, GRPC, and SOAP standards
 </li>
 <li>
 Ability to adapt to agile software development methodologies such as Agile/Scrum
 </li>
 <li>
 Basic knowledge of GitHub, Jenkins and CI/CD
 </li>
 <li>
 Eagerness to learn new technologies and improve continuously
 </li>
 <li>
 Good understanding skills for analyzing business requirements and problem solving
 </li>
 <li>
 Strong communication skills and a team-oriented mindset
 </li>
 <li>
 For male candidates, completion of military service or a minimum of 2 years of postponement
 </li>
 </ul>
 
 
 
 
 In addition, we are looking for the following qualifications on the frontend side (React):
 
 
 
 
 <ul>
 <li>
 1+ years of hands-on experience with React.js
 </li>
 <li>
 Familiarity with frontend tooling (Webpack, Vite, etc.)
 </li>
 <li>
 Solid understanding of component-based architecture and React Hooks
 </li>
 <li>
 Experience with state management tools like Redux &amp; RTK Toolkit is plus
 </li>
 <li>
 Basic knowledge of UI libraries like Material-UI (MUI) is plus
 </li>
 <li>
 Ability to build responsive and user-friendly web interfaces
 </li>
 <li>
 Familiar with unit test tools like Jest, React-testing-library is plus
 </li>
 </ul>
 
 
</div>

oBilet

<div>Founded in 2012, Obilet.com is a leading travel and tourism platform offering comprehensive services, including bus, flight, and ferry ticketing, along with hotel bookings and car rentals.
As the undisputed market leader in Turkey across both B2B and B2C segments, the platform supports bus carriers with its best-in-class SaaS Inventory Management System (IMS), attracts 25 million monthly visitors, and boasts 15 million app downloads.
Projected to mediate over 50 million transactions in 2025, Obilet is expanding internationally to become one of the largest global players in the travel tech industry.
We are looking for a &ldquo;Sr. Software Developer / Software Developer&rdquo; for our Technology Team. If you want to join as a part of our ongoing succes story, apply now!
Main responsibilities will include:<ul><li>
As a full-stack developer, you will take end-to-end responsibility for developing and delivering new features of obilet.com's B2B &amp; B2C web applications and business API along with the current system&rsquo;s maintenance</li><li>
Contributing to design and development phases for obilet web application front-end and business API back-end</li><li>
Identifying, investigating, and implementing applicable solutions to business requirements</li><li>
Ensure obilet web application and business API meet current web standards &amp; accessibility requirements</li><li>
Following industry best practices in design and product development, also taking initiative in recommending possible enhancements</li></ul> 
To be successful in this role, you need to have:<ul><li>
5+ years of experience in developing and maintaining products with real-world usage in .NET Core and/or client-side frameworks</li><li>
Experience in developing interactive web interfaces using Javascript, HTML5, CSS3</li><li>
Experience in developing web applications with critical mobile compatibility and cross-browser compatibility requirements</li><li>
Experience in web services - RESTful services with ASP.NET Core Web API is a plus</li><li>
Experience with Entity Framework and/or NHibernate ORMs</li><li>
Good knowledge of T/SQL and MSSQL Server</li><li>
Worked on platforms deployed on Microsoft Azure and/or Amazon Web Services</li><li>
Experience with JS frameworks (React, Angular.js, Vue.js, etc)</li><li>
Experience in working on projects that involved build procedures based on Gulp / Grunt</li><li>
Dev-ops experience with cloud platforms (Amazon Web Services and/or Microsoft Azure.)</li><li>
Strong English skills to follow the technical literature is a plus</li></ul>
What we offer:
 Remote Working: We work remotely, but our offices are always open for us
 Birthday Leave: In the month of our birthday, we can take a day off on any day we choose
 Flexible Working Hours: On the days we come to the office, we set our own start time with our flexible working model
 Happy Hours &amp; Company Events: With our New Year&rsquo;s Event, #obiletfest and Happy Hours, we not only strive for success but also have a lot of fun along the way
 Self-Development: Your growth is our focus, with access to online learning platforms like Udemy and various training programs designed to support your professional development
 Best-in-class Teammates: We are all the best in our fields and we are confident about it
 No Dress Code: We have no dress code. We can set the trend in our office with our style<ul><li>Free Snacks &amp; Drinks: Surprise breakfasts, desserts and fruits might be waiting for us in our office</li></ul>
&#10024; Health Insurance: We are by your side with our health insurance whenever you need it</div>

Sr. Software Developer

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Sr. Software Developer