Senior Full Stack Engineer

Quick Facts

• Role: Senior Full Stack Engineer (React + Java/Node.js)

• Work model: 100% remote (Poland)

Description

You will develop a modern SaaS platform for large organizations, working across both frontend and backend. The role focuses on building administrative portals, operational dashboards, and backend services with REST APIs, integrating with internal and external systems. You will contribute to microservices architecture, code quality, and improvements in performance, security, and availability.

Responsibilities

• Design and develop modern web applications using React and TypeScript

• Build administrative portals, dashboards, and tools supporting business operations

• Create and evolve backend services and REST APIs

• Integrate applications with internal and external systems

• Work in a microservices architecture

• Collaborate on new features and architectural decisions

• Maintain code quality via code reviews and unit tests

• Optimize application performance, security, and accessibility

• Collaborate with international product and engineering teams

Requirements

• Minimum 5 years of full stack development experience

• Hands-on React, TypeScript, and JavaScript experience

• Experience with Java (Spring Boot) or Node.js

• Experience creating and integrating REST APIs

• Solid knowledge of microservices architecture

• Experience with relational databases: PostgreSQL, MySQL, or Oracle

• Cloud experience: AWS, Azure, or GCP

• Experience with Docker and Kubernetes

• Knowledge of CI/CD and Git

• Understanding of application security and authentication/authorization: OAuth2, OIDC, SAML, RBAC

• Very good English proficiency

Benefits

• Long-term collaboration and a clear career path with an EU engineering/IT consulting leader

• Opportunity for relocation within local offices in Poland

• Possibility to move to the next project after project completion

• Work with a dedicated Competences Manager

• Medical care (Medicover) and dental care (Medicover)

• Medicover Benefits platform

• Sports card (Medicover)

• Referral program

• Newborn child starter pack for employees

• Group life insurance

• Retirement program

• Also available: B2B contract or mandate contract (UZ)

• Access to professional certifications (e.g., Google, ISTQB)

• Access to industry events

• Knowledge Sharing Program

• Referral program