Senior Full-Stack Developer (Node.js, React, AWS)

Quick Facts

• Role: Senior Full-Stack Developer (Node.js, React, AWS)
• Work mode: 100% remote
• Budget: up to 150 PLN/h + VAT (depends on experience and scope)

Description

Develop and maintain an advanced web application supporting fraud detection and real-time client authentication. Design and implement full-stack solutions using Node.js, React, and TypeScript, while expanding and maintaining AWS cloud services and integrations between system components. Work across the full software development lifecycle, including event-driven distributed architecture, API development (REST and GraphQL), testing, and DevOps/security-related activities.

Responsibilities

• Develop and maintain a fraud-detection and real-time client authentication web application
• Design and implement full-stack solutions (Node.js, React, TypeScript)
• Build and operate AWS cloud services and infrastructure, including system integrations
• Design event-driven solutions and distributed systems
• Deliver tasks end-to-end across the full software development lifecycle
• Create and evolve REST and GraphQL APIs
• Support cloud infrastructure, deployment automation, and DevOps/security operations
• Use AI tools supporting development (e.g., Claude, GitHub Copilot)

Requirements

• Minimum 5 years of software development experience
• Very strong knowledge of Node.js and TypeScript
• Practical AWS knowledge, especially: Lambda, DynamoDB, S3, IAM, AppSync, API Gateway
• Experience designing and developing full-stack applications
• Knowledge of React
• Knowledge of event-driven architecture and distributed systems running in the cloud
• Experience designing and implementing REST/HTTP APIs and GraphQL
• Familiarity with software testing practices, including TDD, BDD, and automated tests
• Knowledge of SOLID principles and good code design/maintenance practices
• Experience with CI/CD processes and deployment automation
• Knowledge of security, performance, monitoring, and system maintainability
• Ability to independently lead tasks from technical concept to production deployment
• English proficiency at B2+/C1

Benefits

• Opportunity to work across a variety of projects in Software, Embedded, Data, and Cloud Services
• Participation in additional pre-sales initiatives and expert initiatives
• Medical care, sports card, and access to a cafeteria platform under applicable collaboration rules