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Freelance Full Stack Engineer Jobs (NOW HIRING)

Nexusflow.ai, Inc.

Full-Stack Engineer

Palo Alto, CA

Full-Stack Engineer Nexusflow is currently adding Full-Stack Engineers to our team. Our full-stack engineers are responsible for packaging up our technology in models and last-mile quality toolings ...

Atrium

Full Stack Engineer

Manhattan, NY · On-site

$45 - $55/hr

The Full Stack Engineer will be responsible for building and enhancing modern full-stack applications using Angular on the front end and Java 21+ with Spring Boot on the backend. This role will ...

Givzey

Full Stack Engineer

Full Stack Engineer We're looking for a talented and motivated full-stack engineer with 3+ years of experience to join as an early member of our growing team. You will own end-to-end technology ...

Provn

Full Stack Engineer

Seattle, WA

$130K - $200K/yr

Full Stack Engineer Golden Analytics (via Provn) job board listing HTML Full Stack Engineer Pay: $130,000.00 - $200,000.00 per year About the job Provn is hiring a Full Stack Engineer for a Bellevue ...

Soni Resources

Full Stack Engineer

Houston, TX · On-site

The Full Stack Engineer develops, integrates, and maintains robust web and mobile applications that power modern digital experiences. This role bridges product vision and technical execution ...

Zetier

Full-Stack Engineer

Arlington, VA · On-site

Senior Full-Stack Engineer Zetier is seeking a senior full-stack engineer to build modern, secure, and mission-focused software supporting advanced cybersecurity, reverse engineering, and defense ...

Atrium

Senior Full Stack Engineer

Manhattan, NY · On-site

$55 - $65/hr

The Senior Full Stack Engineer will be responsible for building and enhancing modern full-stack applications using Angular on the front end and Java 21+ with Spring Boot on the backend. This role ...

Atrium

Junior Full Stack Engineer

Manhattan, NY · On-site

$35 - $45/hr

The Junior Full Stack Engineer will be responsible for building and enhancing modern full-stack applications using Angular on the front end and Java 21+ with Spring Boot on the backend. This role ...

Mastech Digital

Full Stack Engineer

Durham, NC · Remote

$65 - $72/hr

We are currently seeking a Full Stack Engineer for our client in the Financial Services domain. We value our professionals, providing comprehensive benefits and the opportunity for growth. This is a ...

Zetier

Full-Stack Engineer

Arlington, VA · Hybrid

Senior Full-Stack Engineer Zetier is seeking a senior full-stack engineer to build modern, secure, and mission-focused software supporting advanced cybersecurity, reverse engineering, and defense ...

Nexiva Inc

Senior Full Stack Engineer

Rockville, MD · On-site

Senior Full Stack Engineer Location : Rockville, MD or Mclean, VA Hybrid Duration : 6+ months Contract with long-term extension Interview Process * Technical coding exercise / screening (45 minutes)

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How much do freelance full stack engineer jobs pay per year?

As of May 29, 2026, the average yearly pay for freelance full stack engineer in the United States is $134,771.00, according to ZipRecruiter salary data. Most workers in this role earn between $111,000.00 and $158,000.00 per year, depending on experience, location, and employer.

What are the key skills and qualifications needed to thrive as a Freelance Full Stack Engineer, and why are they important?

To thrive as a Freelance Full Stack Engineer, you need strong proficiency in both front-end and back-end programming languages (such as JavaScript, HTML/CSS, Node.js, and Python) and a solid understanding of database management and web architecture. Familiarity with frameworks like React, Angular, or Django, version control systems like Git, and cloud platforms is often required, and certifications (e.g., AWS Certified Developer) can be advantageous. Excellent problem-solving, time management, and client communication skills help set you apart in a competitive freelance environment. These skills and qualities are crucial for delivering high-quality, end-to-end solutions while managing multiple projects and maintaining client satisfaction.

What are some common challenges faced by freelance full stack engineers when managing multiple projects simultaneously?

Freelance full stack engineers often juggle several projects at once, which can lead to challenges such as balancing client expectations, managing time effectively, and ensuring consistent code quality across different tech stacks. Communication is key, as freelancers must regularly update clients and coordinate with other team members who may be working remotely. Staying organized with project management tools and setting clear boundaries for deliverables and timelines can help mitigate these challenges, allowing engineers to deliver high-quality work while maintaining healthy client relationships.

What does a Freelance Full Stack Engineer do?

A Freelance Full Stack Engineer is a self-employed software developer who is skilled in both front-end (client-side) and back-end (server-side) technologies. They design, build, and maintain complete web applications or websites, handling everything from user interfaces to databases and server logic. Freelance full stack engineers often work with a variety of clients on short-term or long-term projects, adapting to different tech stacks and business requirements. Their versatility makes them valuable for startups, agencies, and companies needing flexible development expertise.

What is the difference between Freelance Full Stack Engineer vs Freelance Front End Developer?

AspectFreelance Full Stack EngineerFreelance Front End Developer
SkillsProficient in both front-end and back-end technologies (e.g., HTML, CSS, JavaScript, Node.js, databases)Specializes in front-end technologies (e.g., HTML, CSS, JavaScript, frameworks like React or Angular)
Work EnvironmentHandles entire project development, often working on both client and server sidesFocuses on user interface and experience, primarily on the client side
Common UsageUsed in projects requiring full-stack development, versatile rolesUsed in projects emphasizing UI/UX design and front-end features

Freelance Full Stack Engineers have a broader skill set covering both front-end and back-end development, enabling them to manage entire projects. Freelance Front End Developers specialize in creating engaging user interfaces. The choice depends on project scope and required expertise.

What cities are hiring for Freelance Full Stack Engineer jobs? Cities with the most Freelance Full Stack Engineer job openings:
What are the most commonly searched types of Full Stack Engineer jobs? The most popular types of Full Stack Engineer jobs are:
What states have the most Freelance Full Stack Engineer jobs? States with the most job openings for Freelance Full Stack Engineer jobs include:
Freelance Full Stack Engineer jobs near you

Full-Stack Engineer

Nexusflow.ai, Inc.

Palo Alto, CA

Full-time

Posted 22 days ago

Job description

About Nexusflow.ai

Modern enterprise copilots & agents call for last-mile quality, enterprise-grade robustness and scalable operation costs, beyond simplified programming interfaces for generative AI. Nexusflow tackles this challenge, enabling enterprises to own their workflow copilots & agents stacked on top of powerful yet cost-effective, compact LLMs. We train large language models and build last-mile quality dev tooling for copilots & agents on your enterprise workflows. Our team has built the open-source LLM, NexusRaven-V2, rivaling GPT-4 in function calling with a 100X smaller model size. Our team members are also behind the scenes of Starling, the #1 ranked compact 7B chat model based on human evaluation in Chatbot Arena.

Position: Full-Stack Engineer

Nexusflow is currently adding Full-Stack Engineers to our team. Our full-stack engineers are responsible for packaging up our technology in models and last-mile quality toolings as systems. Our full-stack engineers will be the driving force building our products and solutions in extensive collaboration with our ML engineers, designers & our customers.

  Responsibilities

  • Full-stack development in dev tooling and applications for GenAI copilots & agents

  • Spearheading the development and maintenance of high-quality web front-end using React.js

  • Contributing to the backend API system for cloud or on-prem deployment

  • Staying updated on emerging technologies and best practices in web development

  • Wearing many hats and collaborating with Nexusflow.ai's full team for product development, deployment and customer success

  Qualifications Required

  • 3+ years experience in full-stack web development

  • Frontend

    • Proficient in developing web applications using React.js, Next.js, TypeScript, and Tailwind CSS.

    • Experience with Next.js for server-side rendering and routing.

    • Strong understanding of HTML, CSS, and JavaScript.

    • Knowledge of state management libraries like Redux.

  • Backend

    • Experience with backend API system development & deployment on cloud (e.g. AWS).

  • Passion for application & platform systems involving ML models, data pipeline and applications.

Preferred

  • Work experience in fast-pace teams.

  • Experience in building ML applications or ML platforms.

  • Experience in projects involving LLMs.

Apply