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Senior JavaScript/Node.js Developer (Remote)

Sigmasoftware2

Remote
Full-time
Senior
5+ yrs
Salary not listedPosted 2mo ago

Real job — pulled straight from Sigmasoftware2’s careers page · Verified June 23, 2026 · No reposts.

Job description

Sigmasoftware2 is hiring a Senior JavaScript/Node.js Developer (Remote) — a full-time, remote role. Apply directly on Sigmasoftware2's careers page below.

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

Location: Bucharest, Bucharest, ro, Remote

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 
  • 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 

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Frequently asked questions

Is Senior JavaScript/Node.js Developer (Remote) at Sigmasoftware2 a remote job?

Yes, Senior JavaScript/Node.js Developer (Remote) at Sigmasoftware2 is a remote position. Candidates in Bucharest, RO may be preferred.

What skills are required for Senior JavaScript/Node.js Developer (Remote) at Sigmasoftware2?

The required skills for Senior JavaScript/Node.js Developer (Remote) at Sigmasoftware2 include: JavaScript, Node.js, TypeScript, React, API, REST, GraphQL, Microservices, AWS, DevOps, Agile.

What is the seniority level for Senior JavaScript/Node.js Developer (Remote) at Sigmasoftware2?

Senior JavaScript/Node.js Developer (Remote) at Sigmasoftware2 is a Senior level position.

How do I apply for Senior JavaScript/Node.js Developer (Remote) at Sigmasoftware2?

You can view the full description and apply for Senior JavaScript/Node.js Developer (Remote) at Sigmasoftware2 on EchoJobs: https://echojobs.io/job/sigmasoftware2-senior-javascript-node-js-mcp-developer-fintech-project-ejmtl.