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Junior Mern Stack Developer Jobs in California (NOW HIRING)

Saviance

Sr Fullstack Developer

San Francisco, CA · On-site

... Stack Developer to build and manage EdCast applications for digital workspace platforms. The role involves designing, implementing, and ensuring scalability of applications while mentoring junior ...

Fuser

Jr. Full Stack Engineer

Los Angeles, CA · On-site

$70K - $90K/yr

You'll join early as our Junior Full Stack Engineer, working alongside our team to help ship features, improve performance, and learn the systems that power an AI-native creative platform. This role ...

Wipro Limited

Full Stack Engineer - Pricing

Menlo Park, CA · On-site

$60K - $148K/yr

Full Stack Engineer - Pricing City: Menlo Park State/Province: California Posting Start Date: 8/27 ... Fullstack MERN. Experience: 5-8 Years. The expected compensation for this role ranges from $60,000 ...

Fuser

Jr. Full Stack Engineer

Los Angeles, CA · On-site

$70K - $90K/yr

You'll join early as our Junior Full Stack Engineer, working alongside our team to help ship features, improve performance, and learn the systems that power an AI-native creative platform. This role ...

Wipro Limited

Full Stack Engineer - Logistics

Menlo Park, CA · On-site

$60K - $148K/yr

Full Stack Engineer - Logistics City: Menlo Park State/Province: California Posting Start Date: 8 ... Fullstack MERN. Experience: 5-8 Years. The expected compensation for this role ranges from $60,000 ...

Wipro Limited

Full Stack Engineer - o9

Menlo Park, CA · On-site

$60K - $148K/yr

Full Stack Engineer - o9 City: Menlo Park State/Province: California Posting Start Date: 8/27/26 ... Fullstack MERN. Experience: 5-8 Years. The expected compensation for this role ranges from $60,000 ...

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

$125 - $150/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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Junior Mern Stack Developer information

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$23.7K

$87.8K

$135.7K

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

As of Sep 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.

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 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.

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 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 92% Full Time, 3% Part Time, 4% Contract, and 1% Nights. Highlights an 85% Physical, 4% Hybrid, and 11% Remote job distribution, with an average salary of $87,810 per year, or $42.2 per hour.

Full stack developer (Kotlin & React JS) IN San Diego CA (Onsite )Local only

San Diego, CA • On-site

talentmovers inc
See more jobs at talentmovers incexternal

Contractor

Re-posted 5 hours ago

Job description

Role: Full stack developer

Location: San Diego CA (Onsite )Local only

Contract: 12+ months

Mandatory skills : Full Stack, Java , Kotlin, React JS

A Full Stack Java + Kotlin React JS Developer is sought to design, develop, and maintain web applications, encompassing both front-end and back-end components. This role requires expertise in server-side development using Java and Kotlin, alongside proficiency in building interactive user interfaces with React JS.

Key Responsibilities:

  • Front-end Development: Design and implement responsive and intuitive user interfaces using React JS, HTML, CSS, and JavaScript. Ensure a seamless and engaging user experience.
  • Back-end Development: Develop and maintain robust, scalable, and secure server-side applications and APIs using Java, Kotlin, and frameworks like Spring Boot.
  • Database Management: Work with relational and/or NoSQL databases to design schemas, manage data operations, and ensure data integrity.
  • API Development: Design, develop, and integrate RESTful APIs to facilitate communication between front-end and back-end systems.
  • Collaboration: Work closely with product owners, UI/UX designers, and other developers within an Agile environment to translate business requirements into technical solutions.
  • Testing and Quality Assurance: Conduct unit, integration, and end-to-end testing to ensure the quality, performance, and reliability of applications. Participate in code reviews and provide constructive feedback.
  • Deployment and Monitoring: Collaborate with DevOps teams for continuous integration and deployment (CI/CD) and implement monitoring solutions to ensure application health and performance.
  • Troubleshooting and Optimization: Identify, debug, and resolve issues across the full stack, and optimize application performance and scalability.
  • Technical Leadership & Mentorship: Contribute to architectural discussions, recommend best practices, and potentially mentor junior developers.

 

Required Skills and Qualifications:

  • Programming Languages: Strong proficiency in Java and Kotlin for back-end development, and JavaScript (ES6+), TypeScript for front-end development.
  • Frameworks: Extensive experience with Spring Boot for Java/Kotlin back-end, and React JS for front-end development.
  • Web Technologies: Solid understanding of HTML, CSS, and related web technologies.
  • Databases: Experience with SQL (e.g., PostgreSQL, MySQL, Oracle) and/or NoSQL databases (e.g., MongoDB).
  • API Design: Proven experience in designing and developing RESTful APIs.
  • Tools & Methodologies: Familiarity with version control systems (e.g., Git), build tools (e.g., Maven, Gradle), and Agile development methodologies.
  • Problem-Solving: Excellent analytical and problem-solving skills with the ability to troubleshoot complex issues across the stack.
  • Communication: Strong verbal and written communication skills to collaborate effectively within a team.