Build and enhance backend microservices using Node.js and TypeScript
Implement cloud‑native solutions leveraging AWS Lambda, API Gateway, EventBridge, and DynamoDB
Drive improvements in testing quality by adding unit, integration, and performance test coverage
Work on asynchronous and distributed systems, optimizing reliability and event‑driven flows
Collaborate with Architects & SREs to follow security, scalability, and operational best practices
Participate in architectural discussions and contribute to technical decision‑making
Integrate with external partners and vendors across multiple domains
Support continuous delivery processes through GitLab CI and internal automation improvements
Promote high code quality and team collaboration through mentoring and knowledge sharing

Production‑level expertise in TypeScript and Node.js
Experience developing and maintaining microservices architectures
Solid understanding of AWS services including Lambda, API Gateway, EventBridge, DynamoDB, S3, SNS, SQS
Proficiency with test automation and the full testing pyramid using Jest, SuperTest, Cypress, and related tools
Experience working in agile, cross‑functional teams and collaborating with product and design
Ability to lead through mentorship, constructive feedback, and technical knowledge sharing
Strong communication skills in Polish and English
A proactive, open‑minded approach focused on delivering business value within distributed systems

Senior Cloud Backend Engineer

Key skills