YOU WILL
Design, develop, and maintain backend applications and REST APIs using
Node.js, Express, JavaScript, and TypeScript.
Build and maintain middleware layers and service integrations.
Write clean, maintainable, and well-tested code following modern software development practices.
Develop and maintain unit and integration tests using Jest, Vitest, or similar frameworks, applying TDD principles.
Analyze and troubleshoot runtime errors, performance issues, and application regressions.
Work with asynchronous processing, batch operations, and database transactions.
Identify and resolve security vulnerabilities in application code and dependencies.
Configure, maintain, and troubleshoot CI/CD pipelines using Azure DevOps or GitHub Actions.
Design and implement observability, monitoring, and corrective tools for operations and support teams.
Leverage AI-assisted and agentic coding tools, including Claude Code, GitHub Copilot, and MCP.
Collaborate with international development and operations teams.
Kogo poszukuje? MUST HAVE
Strong commercial experience with
JavaScript (ES6+) and TypeScript .
Solid knowledge of TypeScript fundamentals, including interfaces, generics, type inference, and type safety.
Experience with TypeScript configuration ( tsconfig.json ) and integration with build tools.
Hands-on experience developing backend applications and REST APIs using
Node.js and Express.
Good understanding of the
Node.js event loop, asynchronous execution, batch processing, and database transactions .
Experience with
unit and integration testing
using Jest, Vitest, or similar frameworks, including TDD practices.
Strong debugging and troubleshooting skills, including performance analysis and regression investigation.
Experience managing dependencies within the
NPM ecosystem , including package versioning and security vulnerability remediation
Practical experience with
Azure DevOps or GitHub Actions
and CI/CD pipelines
Experience with
AI-assisted development and agentic coding , including Claude Code or GitHub Copilot, MCP, skill design, and context engineering
Experience designing observability and corrective tooling for production systems
Strong understanding of software engineering best practices and maintainable code design
Fluent in English and experience working in international, distributed teams
Senior Node.js/TypeScript Developer in Kraków – pracodawca: Solid Company
Nasza firma to doskonały pracodawca, który stawia na rozwój swoich pracowników oraz tworzy przyjazne i wspierające środowisko pracy. Oferujemy atrakcyjne benefity, w tym elastyczne godziny pracy oraz możliwość szkoleń, co sprzyja rozwojowi kariery w obszarze księgowości. Pracując u nas, będziesz częścią zespołu, który ceni współpracę i innowacyjność, a także ma dostęp do nowoczesnych narzędzi technologicznych w dynamicznej lokalizacji.
