Work 100% remotely for a US-based leader in cloud communications. Join a team building mission-critical APIs used by Airbnb, WhatsApp, Snapchat, and other global brands.
We’re looking for a Senior Full-Stack Developer with a strong backend focus (Node.js/TypeScript) to help evolve large-scale, real-time, event-driven systems. You'll contribute to new features, production improvements, and ensure high reliability and performance.
You'll work alongside experienced engineers passionate about high-quality, fault-tolerant systems powering real-time communication worldwide.
What you’ll do
Design and build new features in a large-scale, event-driven platform.
Improve performance, reliability, and fault tolerance of production systems.
Work with APIs and SDKs used by global brands.
Collaborate with experienced engineers in a remote-first team.
Get hands-on with real-time communication systems and cloud technologies.
Required skills
Minimum 5 years of professional experience in software engineering.
Strong backend experience (Node.js / TypeScript; Java is a big plus)
Solid frontend experience (JavaScript / TypeScript / HTML / CSS; Angular is a big plus).
Excellent debugging and problem solving skills.
Experience with automated testing frameworks and platforms.
Good understanding of algorithms, data structures, memory management, and concurrency.
Database knowledge.
Source control (Git) / Agile development practices.
Effective remote collaboration and communication skills.
Nice to have:
Familiarity with API design and/or SDK development.
Cloud technologies such as AWS, Kubernetes, Helm, Docker.
What we offer
100% remote work with flexible hours in Polish time zone
Direct contract with a US company – stable, long-term cooperation
Competitive B2B rates (up to 160 PLN/h)
Work on mission-critical systems with real impact
Polish public holidays respected
Recruitment process: 1–2 technical interviews with senior engineers from the team.
Net per hour - B2B
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