Senior Backend Engineer | Node.js, TypeScript

Backend Engineer (Node.js, TypeScript) Work Model: Remote Employment Type: B2B contract Project Length: Long-term Start: December 2026 Rate: 120 – 160 pln/h Industry: Retail As a trusted global technology partner, we help organizations improve processes, automate work and build scalable digital solutions. We are currently looking for an experienced Backend...

Cognizant Poland is seeking a Backend Engineer to join a remote, long-term B2B engagement. You will design, develop, and maintain backend services using Node.js and TypeScript, building scalable APIs for a large-scale digital platform.You will collaborate with cross-functional teams and contribute to secure, resilient systems while supporting CI/CD and...

Full-time B2B | Remote EU / Poland | US Insurance Context | Start October 2026 We are an AI-native data and technology partner for private capital and healthcare. Founded in 2010 and headquartered in Warsaw, we work with leading PE firms, VC funds, and healthcare organizations to build proprietary data infrastructure, deploy AI solutions, and drive AI-native...

Kake is a remote-first, people-first global community of engineers, seeking Senior Backend Engineers skilled in TypeScript, Python, or C#. You will own high-performance, scalable backend systems for millions of users, collaborating with product and frontend teams to deliver reliable software.Core requirements include 5+ years in software engineering,...

SUNSCRAPERS Spółka z ograniczoną odpowiedzialnością seeks an experienced backend engineer to build a multi-tenant policy gateway in Nest.js, TypeScript and AWS. You will design canonical models, map policies, and ensure data isolation while working closely with client engineers across time zones.The role emphasizes automation, observability, security...

Darwin Recruitment is seeking a freelance Senior TypeScript Backend Engineer to join a product development team on a 3-month contract, likely to extend. The role focuses on backend services, API design and AI-powered capabilities built on LLMs and agentive workflows.You will independently design, build and iterate features end to end, with hands-on...

Source Angel, a Danish-rooted software company with development centers in Poland, Ukraine, and Romania, is seeking a Senior Back-End (API) Developer (Node.js) for Warsaw. You will architect and build scalable backend services, focusing on PostgreSQL performance and robust APIs to support real estate workflows.The role emphasizes clean architecture, high...

Adaptiq Ltd. is seeking a Senior Backend Engineer to join a product engineering team working on large-scale systems. The role focuses on back-end work with occasional front-end contributions, owning end-to-end technical solutions from design to deployment.You will collaborate with cross-functional teams, influence architecture decisions, and apply strong...

Adaptiq is a technology hub specializing in building, scaling, and supporting R&D teams for high-end, fast-growing product companies across a wide range of industries. About the Product: Our client is an established international technology company developing a sophisticated B2B software platform serving enterprise customers worldwide. The platform operates...