Senior Full Stack MERN Developer (Remote) – SaaS Platform

Job Overview

Remote Leverage is hiring a Senior Full Stack MERN Developer to join as a founding engineer on a new, independent SaaS platform. This is a full-time, fully remote role, open to candidates worldwide, focused on taking an early-stage product from MVP to production-ready scale.

Remote Leverage is a California-based talent and recruitment company that helps businesses hire remote professionals globally. In addition to its core services, the company is building a proprietary SaaS platform backed by a unique talent dataset designed to improve how organizations discover, evaluate, and hire remote talent.

This role is hands-on and execution-focused, offering significant ownership and influence over the product’s technical direction. The Senior Full Stack MERN Developer will work closely with the founder to build a stable, scalable, and secure platform for real-world customers.

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Key Responsibilities

  • Take an existing MVP and evolve it into a production-ready SaaS product
  • Design, build, and refine backend APIs and data models
  • Improve frontend usability, performance, and overall user experience
  • Ensure platform stability, security, and scalability for public launch
  • Identify and resolve bugs, edge cases, and technical debt
  • Make pragmatic architectural decisions that support long-term growth
  • Write clean, maintainable, and well-structured TypeScript code
  • Apply a product-focused engineering mindset beyond feature delivery
  • Work closely with the founder to move quickly while maintaining engineering discipline
  • Adapt to evolving requirements in an iterative, early-stage environment

Requirements / Qualifications

Required Qualifications

  • 5+ years of professional experience as a Full Stack Developer or similar role
  • Strong experience with TypeScript across both frontend and backend
  • Solid experience building production-grade interfaces with React
  • Hands-on experience developing Node.js and Express APIs
  • Experience working with MongoDB in production environments
  • Proven track record of shipping and maintaining real-world SaaS products
  • Ability to scale products from “working MVP” to reliable, production-ready systems
  • Strong product-minded engineering approach
  • Comfort working without rigid specifications and iterating quickly
  • Fluent English communication skills (written and verbal)
  • Professional, collaborative, and proactive working style

This Role Is a Good Fit If You

  • Enjoy owning products from early-stage development through launch
  • Prefer working closely with founders and decision-makers
  • Have experience identifying where MVPs typically fail and how to fix them
  • Care deeply about code quality, maintainability, and scalability
  • Want meaningful impact on a product with long-term market potential

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Benefits

  • USD $3,000 – $4,000 per month
  • No equity
  • Full-time, fully remote position

How to Apply

Apply here: https://wellfound.com/jobs/3697372-senior-full-stack-mern-developer

Deadline

Not Specified

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