JOB DETAILS
Senior JavaScript/Node.js MCP Developer (FinTech Project)
CompanySigma Software
LocationBucharest
Work ModeOn Site
PostedMay 18, 2026
About The Company
Sigma Software Group, an award-winning and trusted IT partner, has been serving customers for over 22 years, providing comprehensive IT solutions to various businesses, ranging from startups to established software product houses. As one of Europe's substantial IT consultancies, it brings together a dedicated workforce of over 2,100 professionals in 40 offices across 19 countries. With a diverse client base, including more than 300 enterprises, including Fortune 500 stalwarts, Sigma Software Group is a preferred choice for developing solutions that help businesses create cutting-edge products while meeting their unique needs.
Sigma Software Group operates as a dynamic ecosystem of tech companies, offering 25 ready-to-implement innovative products and 40+ value-added services. Furthermore, Sigma Software Group is committed to fostering innovation through initiatives such as the Sigma Software Labs business incubator, Sigma Software University, the SID Venture Partners VC Fund, UA Tech Network, Techosystem, the European Business Association, and other collaborative efforts.
Since 2015, Sigma Software Group has consistently earned recognition on the IAOP's prestigious World's Top 100 Outsourcing list. The company's accomplishments have also been acknowledged by prominent global media outlets such as Forbes, CNBC, The Times, and Reuters.
About the Role
Company Description
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.
Job Description
- 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
Qualifications
- 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
- Experience with Experience AI Agentic systems and MCP (Model Context Protocol) 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
Key Skills
Node.jsReactJSTypeScriptMCPAI Agentic SystemsDistributed SystemsMicroservicesAPI DesignRESTGraphQLAWSDevOpsJavaScriptES6Testing Best PracticesEnglish Language
Categories
SoftwareTechnologyFinance & AccountingEngineering
Job Information
📋Core Responsibilities
Design and implement large-scale software solutions using Node.js and ReactJS for a FinTech platform. Provide technical leadership, coaching for junior engineers, and ensure high code quality through design patterns and best practices.
📋Job Type
full time
📊Experience Level
5-10
💼Company Size
1591
📊Visa Sponsorship
No
💼Language
English
🏢Working Hours
40 hours
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