Staff Engineer (Python)

For our international client - AI product company - we are looking for an experienced Staff Python Engineer. RESPONSIBILITIES • Own parts of our core backend infrastructure, which is a complex, real-time distributed system written in Python and Rust. • Own big initiatives end-to-end and deliver them with minimal guidance. • Troubleshoot highly complex production issues. • Constantly improve our development velocity while maintaining a very high reliability standard. REQUIREMENTS • 10+ years of experience in Python development as a Staff/Principal Engineer. • Strong Python Asyncio experience. • Strong software design skills. • Significant experience with at least one strongly typed language (Rust, C++, Go, Swift, Java, etc). • Deep understanding of Networking Protocols, Operating Systems. • Deep knowledge of Python Profiling. • Experience in delivering and troubleshooting a production-grade cloud-based distributed system and a real-time low-level system (e.g. kernel, drivers, RTOS). • Experience with Kubernetes, Helm and different observability stacks. • Strong LLM prompting skills, but also being able to work without them. • Experience with gRPC and its troubleshooting. • Being a contributor or maintainer of an open-source package. • Excellent communication skills, both verbal and written. • BSc in Software Development or equivalent industry experience. NICE TO HAVE • An understanding of one of the following: WebRTC, STUN/TURN, SIP, RTP, HLS, RTMP. • Having worked with Rust and PyO3. • Audio programming experien. WHAT DO WE OFFER ON THIS PROJECT? • Cooperation based on a B2B contract and rate paid in USD. • 100% remote work. • The support of a dedicated mentor. In the relationship, we focus on direct communication. When you join speedapp, you will be put in touch with a dedicated mentor who will make sure that you enjoy working with us and with the client. • Events and integration meetings, as well as participation in various initiatives, e.g., sports. • Access to the benefits offering (medical care, life insurance, Multisport card). WHAT DOES THE RECRUITMENT PROCESS LOOK LIKE? Application: Apply and submit your CV. After the application review, the recruiter will contact selected candidates by phone. Screening: Have a conversation with a speedapp recruiter about your experience. Next steps: The speedapp recruiter will explain the recruitment process for the specific position. The speedapp recruiter will stay in touch with you throughout the entire process. ABOUT SPEEDAPP At speedapp, we believe that an organization is only as good as the people who make it up. We are a team of IT experts and other professionals working for our clients around the world (including Israel, Austria, USA). We go far beyond the HR category. We build IT teams and also help manage them. 👉 10 years of experience 👉 +100 clients worldwide  👉 +300 hires per year 💎 We have won the prestigious "Forbes Diamonds" award four times (2022, 2023, 2024, 2025). We are a member of the European Fast Growth Icons network and FinTech Poland. We are ranked 18th among the 100 fastest growing companies 2023 by Clutch. DO YOU HAVE ANY QUESTIONS? Contact the recruiter responsible for this process directly. Anna Więckowska Junior IT Delivery Consultant anna.wieckowska@speedapp.pl