Senior JavaScript/Node.js MCP Developer

HybridSalary not specified
Poland · Portugal · Albania · Romania

Tech Stack

ReactNode.jsAWSTypeScript

Job Description, Responsibilities & Requirements

About the Position

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

Senior Remote

Europe, Albania, Poland, Portugal, Romania, Spain

Engineering, Software Development, JavaScript, Node.js, TypeScript

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Responsibilities

  • 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

Requirements

  • 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

Nice to Have

  • Experience with modern JavaScript and ES6 libraries

We Offer

  • Різноманітність доменів та бізнесу
  • Великий вибір технологій
  • Медична та юридична підтримка
  • Круте та живе ком'юніті професiоналiв
  • Безперервна освіта та можливість росту
  • Гнучкий графік
  • Віддалена робота
  • Стильний та комфортний офіс (для твого комфорту вибору звідки працювати)
  • Спортивні заходи та спільноти

About the Company

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.


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Job Details

Company name:
Sigma Software
Location:
Poland · Portugal · Albania · Romania
Work Mode:
Hybrid
Posted on TheJob:
May 20, 2026
Last checked:
Jul 4, 2026
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