Senior JavaScript/Node.js MCP Developer (FinTech Project)
Sigma Software · Warsaw, Masovian Voivodeship, Poland
Apply directly on Sigma Software’s careers site — no account needed.
Get the next jobs like this one by email
One free alert to apply before the crowd — jobs land straight from company career pages. One-click unsubscribe.
About the role
- Design and implement large-scale software solutions and components using multiple technologies, with a primary focus on Node.js and ReactJS
- Maintain a consistently high level of quality throughout all stages of the development
- Communicate effectively to collaborate closely with the team and gain full context for complex tasks
- Follow the best engineering practices, as well as company and client guidelines
- Play supervisory, advisory, and coaching roles for less-experienced engineers on the team
- Promote clean code, as well as design patterns and principles
- Over 5 years of experience in Back-end software development
- At least 3 years of experience with TypeScript
- Over 4 years of experience working with Node.js
- Practical understanding of MCP architecture and agentic system design
- Experience with security aspects of AI Agentic systems and MCP integrations
- Strong experience in designing distributed and secure systems
- Good Front-end development skills
- Good understanding of microservices architectures
- Experience in designing, building, and maintaining APIs
- Experience in building and consuming REST and/or GraphQL APIs
- Familiarity with DevOps practices
- Strong experience working with AWS
- Good knowledge of testing best practices
- At least an Upper-Intermediate level of English
WOULD BE A PLUS
- Experience with modern JavaScript and ES6 libraries
Skills
- C
- Three.js
Get the next jobs like this one by email
One free alert to apply before the crowd — jobs land straight from company career pages. One-click unsubscribe.