Senior Node.js Developer | Middle

Description

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. Responsibilities 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 Requirements 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 CloudWatch Knowledge of database technologies including DynamoDB and PostgreSQL (DB2 legacy experience is a plus) Familiarity with TypeScript 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

Requirements

• 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 CloudWatch

• Knowledge of database technologies including DynamoDB and PostgreSQL (DB2 legacy experience is a plus)

• Familiarity with TypeScript 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

Responsibilities

• 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

Seniority

• Middle