Senior Node.js Developer

We’re looking for a Senior Node.js Developer to join our team in Gdansk/Krakow, Poland, in a hybrid working mode (3 days from the office) . In this role, you will contribute to the design and development of front-end solutions, microservices, and REST APIs, leveraging modern technologies and best practices. You will also play a key role in analyzing legacy systems, defining architecture for transformation projects, and collaborating with cross-functional teams to drive business value.

• Design and develop scalable front-end applications, microservices, and REST APIs
• Analyze existing legacy applications and define a target state architecture for modernization
• Implement and optimize solutions within a cloud environment using AWS services
• Ensure performance, security, and reliability across applications and services
• Work collaboratively in an Agile setting, engaging with cross-functional teams and stakeholders
• Contribute to code reviews and establish engineering best practices
• Use testing frameworks and monitoring tools to maintain product quality and stability
• Communicate effectively with clients and internal teams, providing technical insights and recommendations

• 5+ years of experience in software engineering, including Node.js development
• Strong expertise in JavaScript with practical experience in Node.js
• Demonstrated experience in designing microservices architecture and building REST APIs
• Solid hands‑on experience with AWS cloud services such as EC2, S3, Lambda, Kinesis, Firehose, DynamoDB, and Cloud Watch
• Knowledge of database technologies including DynamoDB and PostgreSQL (DB2 legacy experience is a plus)
• Familiarity with Type Script and Java
• Understanding of CI/CD, testing practices, and tools such as Cucumber and API testing frameworks
• Experience working in Agile development environments
• Excellent communication, client‑facing skills, and the ability to manage ambiguity