Senior Python Developer

Senior Python Developer – 5+ Years of Experience

We are looking for a Senior Python Developer with strong Python and backend experience to join the software team of our company operating in the financial sector — someone ready to take technical ownership and lead a team.

We are looking for a teammate who thrives in fast-paced development cycles, who takes technical ownership of a project rather than simply completing assigned tasks, and who can design scalable systems.

What We Are Looking For

• Degree in Computer Engineering, Software Engineering, Computer Science or a related field
• Minimum 5 years of professional software development experience with Python
• Strong knowledge and hands-on experience with PostgreSQL and SQL
• Advanced experience in backend and API development
• Experience with asynchronous programming and async operations
• Hands-on experience with at least one message broker / event-driven technology such as RabbitMQ or Kafka
• Experience with distributed systems, inter-service communication and scalable architectures
• Able to make decisions on software architecture and technical design
• Able to take end-to-end technical ownership of projects
• Able to balance quality and maintainability within fast development cycles
• Able to analyse technical problems and produce sound, workable solutions
• Committed to code review, technical documentation and development standards
• Experienced in team management and technical leadership, or ready to take on that responsibility
• Strong communication skills and a collaborative approach

Responsibilities

• Developing Python-based financial applications and services
• Designing the technical architecture of new systems and evolving the existing one
• Data modelling, query optimisation and performance improvements on PostgreSQL
• Building asynchronous, high-performance services
• Designing and managing messaging infrastructure such as RabbitMQ / Kafka
• Developing inter-service communication and event-driven structures
• Taking end-to-end technical ownership of projects
• Reducing technical debt and improving the scalability of systems
• Running code review processes and contributing to development standards
• Managing the software team's day-to-day workflow and technical development
• Providing technical mentorship to developers within the team
• Task allocation, prioritisation and project planning where needed
• Delivering fast, high-quality solutions together with product and other technical teams

Technical Expectations

Must Have

• Python
• PostgreSQL / SQL
• REST API / Backend Development
• Async Programming
• RabbitMQ or Kafka
• Git
• Software architecture and design principles

Nice to Have

• Microservices
• Event-driven architecture
• Redis
• Docker
• CI/CD
• Cloud technologies
• Experience with financial systems / fintech

If This Role Sounds Like You

If you want to go beyond writing code — to have a say in how the architecture should look, to take technical ownership of projects and to lead the growth of a software team — we would like to meet you.

Position: Senior Python Developer Experience: 5+ years

Work Model: On-site

Location: Istanbul / Şişli