About Us
Öneriver, a spin-off company of Infina Yazılım, develops innovative technology solutions for the capital markets and investment ecosystem.
We are building scalable, high-performance financial platforms powered by modern engineering practices and distributed system architectures.
We are looking for an experienced Senior Backend Software Developer who enjoys solving complex technical challenges, building high-quality software, and contributing to architectural decisions in a fast-growing fintech environment.
Qualifications
* Bachelor’s degree in Computer Engineering or a related field
* Minimum 8 years of professional backend software development experience
* Strong expertise in Java and backend development
* Solid experience with microservice architectures
* Hands-on experience with Apache Kafka and event-driven systems
* Strong knowledge of Redis
* Strong experience with Spring Boot and RESTful API development
* Experience designing scalable, high-availability distributed systems
* Experience with CI/CD pipelines, Git, and modern software engineering practices
* Experience working in Agile / Scrum environments
* Strong analytical thinking and problem-solving skills
* Excellent communication and collaboration skills
Preferred Qualifications
* Experience in fintech, capital markets, or investment systems
* Experience with Docker and Kubernetes
* Experience with system performance optimization and observability tools
Responsibilities
* Design, develop, and maintain scalable backend services and APIs
* Participate in system architecture and technical design discussions
* Build high-performance, reliable, and maintainable software solutions
* Collaborate closely with architecture teams and product owners
* Contribute to improving engineering practices, code quality, and development processes
* Review code and mentor junior and mid-level developers
* Troubleshoot production issues and optimize system performance
* Participate in the evolution of our platform towards modern distributed architectures
What We Offer
* Strong engineering culture focused on quality and innovation
* Opportunity to work with modern technologies and large-scale systems
* Ownership in technical decision-making processes
* Collaborative and dynamic work environment
* Continuous learning and professional development opportunities