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

We are seeking a highly skilled Node.js expert, who excels as a collaborative team member. The role goes beyond coding, encompassing responsibilities such as handling feature aspects, specifications, technical design, development, testing, documentation, and maintenance.

CUSTOMER

Our client has rapidly become one of Europe’s most swiftly expanding FinTech companies. They oversee all aspects of financial operations, from generating virtual cards to facilitating wire transfers and maintaining customer account balances. As a payment institution, our client provides a platform that integrates financial services into its product, offering features such as account management, card payments, bank transfers, and additional services.

Originally posted on Himalayas

Senior JavaScript/Node.js MCP Developer (FinTech Project) at Sigma Software