Staff Backend Engineer (Python)

For an AI-focused technology company, we are looking for a Staff Backend Engineer with Python to join a dynamic and fast-growing team.

RESPONSIBILITIES

• Own parts of the core backend infrastructure, which is a complex, real-time distributed system written in Python and Rust 
• Own major technical initiatives end-to-end and deliver them with minimal guidance 
• Troubleshoot highly complex production issues 
• Constantly improve development speed while maintaining a very high reliability standard.

REQUIREMENTS

• Degree in Software Development or equivalent professional experience
• Previous experience as a Staff or Principal Engineer within a startup environment
• 10+ years of experience in Python development
• Strong Python Asyncio experience 
• Strong software design skills 
• Excellent communication skills, both written and spoken
• Significant experience with at least one strongly typed language (Rust, C++, Go, Swift, Java, etc) 
• In-depth understanding of Networking Protocols, Operating Systems 
• Extensive knowledge of Python Profiling 
• Experience in delivering and troubleshooting a production-grade cloud-based distributed system 
• Hands-on experience in building and troubleshooting a real-time low-level system (e.g. kernel, drivers, RTOS) 
• Kubernetes and Helm experience
• Experience with different observability stacks 
• Strong LLM prompting skills, while remaining fully effective without them
• Experience with gRPC and its troubleshooting
• Active involvement as a contributor or maintainer in open-source software.

NICE TO HAVE

• Understanding of one of the following: WebRTC, STUN/TURN, SIP, RTP, HLS, RTMP 
• Experience using Rust and PyO3
• Audio programming experience.

WHAT DO WE OFFER ON THIS PROJECT?

• Cooperation based on a B2B contract.
• 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.

Ilona Wójcik
Junior IT Delivery Consultant
ilona.wojcik@speedapp.pl
+48 882 842 363