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Junior Mern Stack Developer Jobs in California (NOW HIRING)

Saxon Global

Full Stack Engineer

Sunnyvale, CA

... stack developer who can push completion of the last 20% of creation and fully manage cloud ... junior engineers to provide guidance as to best practices in web development. This position will ...

EvidaraIQ

Senior Full-Stack Engineer

San Francisco, CA · On-site

$120 - $160/hr

Mentor junior engineers and contribute to team knowledge sharing Requirements * Bachelor's degree in Computer Science or related field (or equivalent experience) * 5+ years of full-stack development ...

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How much do junior mern stack developer jobs pay per year?

As of Aug 8, 2026, the average yearly pay for junior mern stack developer in California is $87,810.00, according to ZipRecruiter salary data. Most workers in this role earn between $66,100.00 and $85,900.00 per year, depending on experience, location, and employer.

Is Junior Mern Stack Developer in demand in 2026?

Junior Mern Stack Developers are expected to remain in demand through 2026 due to the continued growth of web applications and the popularity of JavaScript frameworks like React, Node.js, and MongoDB. Strong skills in full-stack development, including proficiency with these tools, can improve job prospects as companies seek versatile developers for modern tech stacks.

What are the key skills and qualifications needed to thrive in the junior MERN Stack Developer position, and why are they important?

To thrive as a Junior MERN Stack Developer, you need a solid understanding of JavaScript, React.js, Node.js, Express, and MongoDB, typically supported by a relevant degree or coding bootcamp. Familiarity with version control systems like Git, Agile development practices, and basic knowledge of RESTful APIs are highly valued, while certifications in web development can enhance your candidacy. Strong problem-solving abilities, good communication skills, and a willingness to learn enable effective collaboration and growth in this role. These skills and qualities are essential for building efficient web applications and contributing successfully to dynamic development teams.

What kind of projects or tasks might a junior MERN Stack Developer typically work on?

As a Junior MERN Stack Developer, you will often be involved in building and maintaining web applications, implementing new features, and fixing bugs within the application stack. Your day-to-day work may include writing code for both front-end (using React.js) and back-end (using Node.js and Express), working with databases like MongoDB, and collaborating closely with other developers, designers, and project managers. You may also be asked to participate in code reviews, contribute to team discussions on architecture or user experience, and learn best practices for scalable and maintainable code. This hands-on experience helps you develop your technical skills and prepares you for more advanced responsibilities as your career progresses.

How much does a junior Mern Stack Developer make?

A junior MERN Stack Developer in the US typically earns between $50,000 and $80,000 annually, depending on experience, location, and company size. Entry-level developers with skills in React, Node.js, and MongoDB are often compensated within this range.

What is a junior MERN Stack Developer?

A Junior MERN Stack Developer is an entry-level software developer who specializes in building web applications using the MERN stack, which consists of MongoDB, Express.js, React, and Node.js. They assist in developing, testing, and maintaining both front-end and back-end components of web applications. Typical responsibilities include writing clean code, fixing bugs, collaborating with senior developers, and integrating APIs. Strong foundational knowledge of JavaScript, database management, and version control (e.g., Git) is essential. This role is ideal for individuals looking to gain hands-on experience and grow their skills in full-stack development.

What are the most commonly searched types of Mern Stack Developer jobs in California? The most popular types of Mern Stack Developer jobs in California are:
What are popular job titles related to Junior Mern Stack Developer jobs in California? For Junior Mern Stack Developer jobs in California, the most frequently searched job titles are:
What job categories do people searching Junior Mern Stack Developer jobs in California look for? The top searched job categories for Junior Mern Stack Developer jobs in California are:
What cities in California are hiring for Junior Mern Stack Developer jobs? Cities in California with the most Junior Mern Stack Developer job openings:
Junior Mern Stack Developer jobs near you
Infographic showing various Junior Mern Stack Developer job openings in California as of August 2026, with employment types broken down into 1% Internship, 78% Full Time, 14% Part Time, 2% Temporary, 4% Contract, and 1% Nights. Highlights an 87% Physical, 3% Hybrid, and 10% Remote job distribution, with an average salary of $87,810 per year, or $42.2 per hour.

Lead Full Stack Java Software Engineer - React & Microservices

MDAEdge

San Francisco, CA • On-site

Full-time

Re-posted 14 days ago

Job description

Job Summary:
MDAEdge is seeking a highly skilled Lead Full Stack Developer to join their fintech engineering team. The role involves developing enterprise applications for equity portfolio construction, focusing on building user-facing interfaces with React and creating scalable microservices for the backend.
Responsibilities:
• Develop high-quality, user-friendly interfaces using React and TypeScript.
• Build and maintain backend microservices supporting complex financial tools.
• Own full feature development across the entire tech stack—from UI to backend services to database layers.
• Design and enhance microservices that support equity portfolio construction.
• Ensure scalable deployment via Kubernetes (K8s) clusters.
• Continuously modernize components using current technologies and design best practices.
• Collaborate with developers, product managers, and end-users.
• Mentor junior developers and contribute to team leadership.
• Participate in CI/CD improvements and engineering process enhancements.
• Help attract and hire top engineering talent.
Qualifications:
Required:
• 5+ years of experience in full-stack development.
• Strong hands-on experience with JavaScript/TypeScript and front-end frameworks like React.
• Proven experience designing and developing backend microservices architectures.
• Solid foundation in software engineering: data structures, algorithms, design patterns.
• Familiarity with relational databases.
• Agile development experience.
• Excellent written and verbal communication skills.
• Ability to work in a cross-functional, fast-paced environment.
• Expertise in designing and developing microservices, including interface definition, backend logic, and integration.
• Ability to develop full-stack solutions from React-based UIs to microservices and database layers.
• Hands-on experience deploying components in Kubernetes.
• Proven track record of modernizing enterprise applications using contemporary tools and third-party services.
Preferred:
• Experience with Python, Java, or Scala.
• Familiarity with AWS services and cloud-native architectures.
• Exposure to enterprise fintech systems.
• Contributions to CI/CD pipelines and DevOps practices.
Company:
The world doesn't have a talent shortage. It has a talent alignment problem. MDA Edge exists to fix that. Founded in , the company is headquartered in Sheridan, WY, US, , with a team of 51-200 employees. The company is currently Growth Stage.

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