Full Stack Developer (MERN) - Senior | Remote

TeamEx Inc.; San Francisco, Northern (CA, KY); Hybrid; USD 65,000 - 79,000; Full time

Job summary

TeamEx Inc. is seeking a Senior Full Stack Developer with a strong backend focus to design, build, and maintain scalable healthcare-oriented web applications. The role emphasizes backend services, APIs, databases, and system architecture while collaborating with frontend and product teams.

You will work with Node.js, Express.js, and PostgreSQL, own features end to end in a remote LATAM setting, and ensure security, performance, and reliability across deployments.

Qualifications

• 7+ years as a Full Stack Developer with backend focus.
• Strong experience with Node.js, Express.js, PostgreSQL.
• Experience building scalable backend systems and REST APIs.
• Experience with cloud platforms and CI/CD pipelines, AWS preferred.
• Experience working in remote or distributed teams.

Responsibilities

• Design, build, and maintain backend services using Node.js and Express.js
• Develop and scale RESTful APIs and backend systems
• Design and optimize PostgreSQL schemas, queries, and data models
• Ensure performance, scalability, reliability, and security of backend services
• Implement authentication and authorization using JWT, OAuth, and session based approaches
• Integrate third party APIs and external services
• Support CI CD pipelines and cloud deployments in collaboration with DevOps
• Troubleshoot and resolve production issues
• Collaborate with product and engineering teams to deliver backend solutions
• Document technical decisions and communicate progress in writing

Skills

Express.js

RESTful APIs

TypeScript

MongoDB

HTML5

CSS3

PropTypes

Full Stack

Job description

Full Stack Developer (MERN) - Senior | Remote

$5,800-7,100/month

Required Experience

6 yrs

Term

1 year or more

Type

Remote (LATAM)

Employer Location

Team Size

From 11 to 50

Skills

CSS3

Express.js

HTML5

MongoDB Query

PropTypes

RESTful APIs

TypeScript

Full Stack Engineering Back End Engineering Front End Engineering

Job Summary

We are seeking a Senior Full Stack Developer with a strong backend focus to design, build, and maintain scalable web applications that support healthcare operations. This role focuses primarily on backend services, APIs, databases, and system architecture while collaborating with frontend and product teams. The ideal candidate has strong Node.js and PostgreSQL experience, clear communication skills, and experience owning features end to end in a remote environment.

Responsibilities

Design, build, and maintain backend services using Node.js and Express.js

Develop and scale RESTful APIs and backend systems

Design and optimize PostgreSQL schemas, queries, and data models

Ensure performance, scalability, reliability, and security of backend services

Implement authentication and authorization using JWT, OAuth, and session based approaches

Integrate third party APIs and external services

Support CI CD pipelines and cloud deployments in collaboration with DevOps

Troubleshoot and resolve production issues

Collaborate with product and engineering teams to deliver backend solutions

Document technical decisions and communicate progress in writing

Requirements

7 plus years of experience as a Full Stack Developer with a backend focus

Strong experience with Node.js, Express.js, and PostgreSQL

Experience building and maintaining scalable backend systems

Strong understanding of REST APIs and backend architecture

Experience with cloud platforms and CI CD pipelines. AWS preferred

Strong debugging and problem solving skills

Experience working in remote or distributed teams

Preferred Qualifications

Experience with MongoDB or other NoSQL databases

Experience building healthcare, marketplace, or workflow driven platforms

Experience mentoring junior engineers

Cultural Qualities We Value

Customer‑centric thinking: You aim to deeply understand how our healthcare users work and enjoy building solutions that make their daily workflows easier.

Writing clarity + working in the open: We operate remotely; sharing context, decisions, and updates clearly is essential.

Ownership & project management: Engineers are responsible for driving projects end‑to‑end - from scoping to delivery to iteration.