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Remote Mern Full Stack Developer Jobs in California

Mercor

AI Full Stack Engineer

San Francisco, CA · Remote

$90 - $110/hr

Remote Commitment: 40 hours/week Role Responsibilities * Build and ship full-stack applications ... Collaborate with the engineering manager and other engineers to maintain consistency in code ...

New

Fuser

Sr. Full Stack Engineer

Los Angeles, CA · On-site +1

$80K - $180K/yr

Improve performance, reliability, and developer experience * Help define the architecture for ... Remote-friendly - we welcome candidates anywhere in the U.S. * LA-based core team - the team works ...

Advantech USA

Sr. Full Stack Software Developer

Milpitas, CA · On-site +1

$110K - $135K/yr

Senior Full Stack Software Developer Location(s): Milpitas, CA Compensation: $110,000 - $135,000 About this position Advantech is seeking a Senior Full Stack Developer to help modernize and scale our ...

Tilda Research

You will work on full-stack application engineering relevant to various clinical workflows * Build ... We are a remote team, and your ability to write your thoughts out is critical. * You care about the ...

Hired Recruiters

Full Stack Engineer

Redwood City, CA · On-site +1

As a full stack software engineer at the company, you'll work on various user-facing applications and tools for data management, annotation, and mapping. You will: * Work closely with design and ...

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Remote Mern Full Stack Developer information

What is a Remote MERN Full Stack Developer?

A Remote MERN Full Stack Developer is a software engineer who specializes in building web applications using the MERN stack (MongoDB, Express.js, React.js, and Node.js) while working from a remote location. They are responsible for both front-end and back-end development, ensuring seamless integration between the user interface and server-side logic. This role requires strong skills in JavaScript and experience with database management, API development, and deploying applications. Remote MERN developers collaborate with teams using online communication tools and manage their work independently.

How do Remote MERN Full Stack Developers typically collaborate with team members across different time zones?

Remote MERN Full Stack Developers often work with distributed teams, which requires clear communication and effective collaboration tools. Most teams use project management platforms like Jira or Trello, and rely on daily standups or regular check-ins via video conferencing to stay aligned. Developers also use version control systems like Git and shared documentation to ensure that everyone is on the same page, even when working asynchronously. Building strong written communication skills and being proactive in updates are key to success in this remote, collaborative environment.

What are the key skills and qualifications needed to thrive as a Remote MERN Full Stack Developer?

To thrive as a Remote MERN Full Stack Developer, you need strong proficiency in JavaScript, MongoDB, Express.js, React, Node.js, and a solid understanding of web development principles, usually backed by a degree in computer science or equivalent experience. Familiarity with source control systems like Git, cloud platforms such as AWS, and relevant certifications in web development or cloud technologies are highly valued. Excellent problem-solving, self-motivation, and communication skills help you collaborate effectively in distributed teams and manage project timelines independently. These skills ensure you can build, deploy, and maintain scalable web applications while adapting to remote work environments.

What are the most commonly searched types of Mern Full Stack Developer jobs in California?

The most popular types of Mern Full Stack Developer jobs in California are:

What are popular job titles related to Remote Mern Full Stack Developer jobs in California?

For Remote Mern Full Stack Developer jobs in California, the most frequently searched job titles are:

What job categories do people searching Remote Mern Full Stack Developer jobs in California look for?

The top searched job categories for Remote Mern Full Stack Developer jobs in California are:

What cities in California are hiring for Remote Mern Full Stack Developer jobs?

Cities in California with the most Remote Mern Full Stack Developer job openings:

Remote Mern Full Stack Developer jobs near you
Infographic showing various Remote Mern Full Stack Developer job openings in California as of August 2026, with employment types broken down into 91% Full Time, and 9% Contract. Highlights an 100% Remote job distribution.

AI Full Stack Engineer

Mercor

San Francisco, CA • Remote

$90 - $110/hr

Full-time

Posted 3 days ago

New

Job description

About the job

Mercor connects elite creative and technical talent with leading AI research labs. Headquartered in San Francisco, our investors include Benchmark, General Catalyst, Peter Thiel, Adam D'Angelo, Larry Summers, and Jack Dorsey.

Position: Senior Software Engineer, Full Stack (Python, Java, Rust, C#, C++)
Type: Contract
Compensation: $90–$110/hour
Location: Remote
Commitment: 40 hours/week

Role Responsibilities

  • Build and ship full-stack applications, services, and internal tools in Python, Java, Rust, C#, C++, or TypeScript to exercise frontier model capabilities.
  • Integrate pre-release model APIs into working software, including tool interfaces, evaluation harnesses, and telemetry.
  • Diagnose and document model and integration failure modes, translating engineering observations into clear written feedback for the research team.
  • Prototype quickly against shifting requirements, delivering working increments with limited up-front specification.
  • Collaborate with the engineering manager and other engineers to maintain consistency in code quality, architecture, and technical documentation.

Qualifications

Must-Have

  • 6+ years of professional experience building and shipping production software.
  • Deep production experience in at least one of Python, Java, Rust, C#, or C++.
  • Hands-on ownership across the stack: backend service and API design, a modern front-end framework (React or equivalent), data modeling, and cloud deployment.
  • Ability to onboard onto an unfamiliar codebase and deliver working code quickly.
  • Strong written communication skills.

Compensation & Legal

  • W-2 employment with Cincinnatus LLC.

Application Process (Takes 20–30 mins to complete)

  • Upload resume
  • AI interview based on your resume
  • Submit form

Resources & Support

  • For details about the interview process and platform information, please check: https://talent.docs.mercor.com/welcome
  • For any help or support, reach out to: support@mercor.com

PS: Our team reviews applications daily. Please complete your AI interview and application steps to be considered for this opportunity.