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Senior Full Stack Software Engineer

mLabs

$120,000 - $150,000
Nov 4, 2025
Remote, US
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MLabs is building a robust FinTech and payments platform and needs an experienced Full Stack Engineer to design and build secure, scalable, and high-performing web applications that translate complex backend financial systems into intuitive, reliable user experiences.

Requirements

  • Strong expertise in React, TypeScript, and web application architecture.
  • Proven experience with backend technologies including Node.js and NestJS.
  • Experience with data stores like MongoDB or Postgres.
  • Proven experience integrating with backend APIs and handling data securely.
  • Experience designing for scalability, maintainability, and fault tolerance in web applications.
  • Experience with Cypress and E2E libraries.
  • Knowledge of infrastructure and deployment (AWS, Kubernetes, Terraform).

Responsibilities

  • Build, optimize, and maintain web applications using React, TypeScript, NestJS, and Node.js.
  • Collaborate with backend engineers to design and consume secure, efficient APIs (REST).
  • Translate complex financial and transactional workflows into clear, usable, and accessible interfaces.
  • Architect and implement front-end systems with strong attention to scalability, maintainability, and performance.
  • Ensure accessibility, responsiveness, and cross-browser consistency.
  • Lead feature delivery end-to-end, review code, share best practices, and mentor peers to maintain a high engineering standard.
  • Troubleshoot and resolve production issues, ensuring reliability and data integrity for a transaction-heavy platform.

Other

  • 5+ years of professional front-end or full-stack software engineering experience.
  • Excellent communication and collaboration skills across cross-functional teams.
  • Exposure to financial, payments, or other transaction-heavy domains.
  • Experience contributing to or maintaining shared design systems or UI libraries.
  • Familiarity with real-time data or event-driven architectures, or experience working in regulated environments (SOC2, ISO27001).