Senior / Principal Python Engineer

About the role

A company based in Belgrade is looking for an experienced Senior / Principal Python Engineer to design, develop and maintain high-performance, scalable and reliable distributed systems. The role combines hands-on software engineering, system architecture and technical leadership, with a strong focus on event-driven architectures and real-time data processing.

Key responsibilities

• Design and implement scalable, event-driven microservices and distributed systems
• Develop high-performance Python services using advanced concurrency and asynchronous programming
• Design and maintain Kafka-based messaging systems and real-time data pipelines
• Build integrations between Python services, REST APIs and external systems
• Ensure system reliability, scalability, performance and observability
• Make architectural decisions and establish engineering best practices
• Collaborate with cross-functional teams and provide technical guidance and mentorship

Required profile

• 10+ years of software engineering experience, with strong expertise in Python
• Extensive experience with distributed systems, microservices and event-driven architectures
• Strong knowledge of Kafka and event streaming patterns
• Experience designing and operating scalable, high-throughput, low-latency systems
• Strong architectural, problem-solving and communication skills
• Experience with C#/.NET integration and Python interoperability is a plus; experience in trading, pricing or other real-time analytical environments is an advantage

Required skills

• Advanced Python, including asyncio, concurrency and performance optimization
• Kafka and event streaming
• REST APIs, PostgreSQL, Redis and Docker
• Familiarity with Protobuf or Avro and real-time communication technologies

What we offer

• Private health insurance
• Equipment of your choice (laptop, monitor, accessories)
• High-growth company with innovative products and a supportive, international team
• Budget for professional development (courses, books, conferences)
• English language lessons during working hours
• Nice office in Belgrade with a stocked kitchen and game area