Senior Backend Developer – Node.js & Go Expertise

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Description

Unleash innovation at the forefront of financial technology — shape the future of banking telemetry! Krakow-based opportunity with hybrid work model (6 days per month in the office). As a Senior Backend Developer , you will be working for our client on a groundbreaking project, designed as a startup to gather and analyze product telemetry across Tech. Your work will directly influence how real-time application data is transformed into actionable insights for customers, contributing to a dynamic platform that drives digital excellence and innovation. Your main responsibilities: Design and develop high-performance REST APIs to support telemetry data collection and analysis Contribute to architecture decisions and best development practices Collaborate with stakeholders to gather and implement telemetry requirements for products Work with AI-related tooling, chatbots, and agentic approaches within the platform Participate in long-term development efforts with a team of 10, primarily Poland-based Engage directly with clients, translating their needs into technical solutions Ensure scalable, reliable, and efficient backend systems You're ideal for this role if you have: At least 5 years of experience in backend development Strong hands-on experience with Node.js and REST API development Proven ability to build high-performance REST APIs Good communication skills with readiness to interact directly with clients Experience with AI integrations, chatbots, and agentic architectures It

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