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Junior Full Stack Software Engineer Jobs in California

Prosum Inc.

Junior Full Stack Engineer

Santa Monica, CA · On-site

$70K - $95K/yr

Junior Full Stack Engineer Salary Range: $70,000-$95,000 About the Role We are seeking a Junior ... Bachelor's degree in Computer Science, Software Engineering, or a related field, or equivalent ...

Hop

Full Stack Software Engineer

Los Angeles, CA · On-site

Full Stack Software Engineer Location: Los Angeles, CA We are seeking highly motivated, collaborative, and technically strong Full Stack Software Engineers to join our Enterprise Technology ...

SupportFinity™

Full Stack Software Engineer

San Jose, CA · On-site

$120 - $180/hr

We're looking for a talented Full Stack Software Engineer to join Blink.new, an AI App Creation Platform. You'll be working on end-to-end feature development and providing technical customer support.

IQUASAR LLC

FULL STACK ENGINEER

San Diego, CA · On-site

$135K - $145K/yr

Position: Full Stack software engineer Location: San Diego, CA We are looking for a Full Stack software engineer who can join our team and make an immediate impact through their creativity ...

iQuasar LLC

FULL STACK ENGINEER

San Diego, CA · On-site

$135K - $145K/yr

Position: Full Stack software engineer Location: San Diego, CA We are looking for a Full Stack software engineer who can join our team and make an immediate impact through their creativity ...

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Junior Full Stack Software Engineer information

See California salary details

$43.9K

$133K

$188K

How much do junior full stack software engineer jobs pay per year?

As of Sep 6, 2026, the average yearly pay for junior full stack software engineer in California is $133,006.00, according to ZipRecruiter salary data. Most workers in this role earn between $109,500.00 and $155,900.00 per year, depending on experience, location, and employer.

What is a junior full stack software engineer?

Junior Full Stack Software Engineers are entry-level professionals who develop both the front-end and back-end components of web applications. They work with a variety of programming languages, frameworks, and tools to build, maintain, and improve websites or web services. Typically, junior engineers work under the guidance of more experienced developers and contribute to coding, debugging, and testing software features. Their role often involves learning new technologies and best practices while collaborating with team members to deliver functional software solutions.

What are some typical challenges a junior full stack software engineer faces when working on cross-functional teams?

As a Junior Full Stack Software Engineer, you may encounter challenges such as balancing front-end and back-end development tasks, quickly learning new frameworks or technologies used by the team, and effectively communicating with designers, QA testers, and senior engineers. Navigating different coding standards and adapting to the team's workflow can also be initially overwhelming. However, these challenges offer valuable learning opportunities, and most teams provide mentorship and code reviews to support your growth.

What are the key skills and qualifications needed to thrive as a junior full stack software engineer, and why are they important?

To thrive as a Junior Full Stack Software Engineer, you need a solid grasp of programming fundamentals, web development (HTML, CSS, JavaScript), and basic knowledge of both front-end and back-end frameworks, often supported by a relevant degree or coding bootcamp. Familiarity with tools like Git, databases (SQL/NoSQL), and frameworks such as React or Node.js is commonly expected. Problem-solving, effective communication, and eagerness to learn are standout soft skills in this role. These skills and qualities are crucial for building, maintaining, and improving software applications while collaborating efficiently with team members.

What are the most commonly searched types of Full Stack Software Engineer jobs in California?

The most popular types of Full Stack Software Engineer jobs in California are:

What are popular job titles related to Junior Full Stack Software Engineer jobs in California?

For Junior Full Stack Software Engineer jobs in California, the most frequently searched job titles are:

What job categories do people searching Junior Full Stack Software Engineer jobs in California look for?

The top searched job categories for Junior Full Stack Software Engineer jobs in California are:

What cities in California are hiring for Junior Full Stack Software Engineer jobs?

Cities in California with the most Junior Full Stack Software Engineer job openings:

Junior Full Stack Software Engineer jobs near you
Infographic showing various Junior Full Stack Software Engineer job openings in California as of August 2026, with employment types broken down into 1% As Needed, 90% Full Time, 6% Part Time, and 3% Contract. Highlights an 87% Physical, 4% Hybrid, and 9% Remote job distribution, with an average salary of $133,006 per year, or $63.9 per hour.

Junior Full Stack Engineer

Prosum Inc.

Santa Monica, CA • On-site

$70K - $95K/yr

Other

Posted 23 days ago

Key responsibilities

  • Implement well-scoped features across the frontend and backend stack.

  • Build user interface components using React.js and TypeScript, and develop backend functionality and REST API endpoints using Python/FastAPI.

  • Participate in code reviews, write unit tests, and collaborate with team members through Agile ceremonies and knowledge-sharing activities.

Job description

Job Description
Junior Full Stack Engineer
Salary Range: $70,000-$95,000
About the Role
We are seeking a Junior Full Stack Engineer to join a growing technology organization and help build modern, AI-powered applications. This role is designed for an early-career engineer who has strong technical fundamentals, is eager to learn, and is excited about developing across both frontend and backend technologies.
The Junior Full Stack Engineer will work on well-defined feature tickets, contribute to production applications, and develop their technical skills through hands-on delivery, code reviews, pairing, and mentorship from experienced engineers. This is an opportunity to grow within a collaborative engineering environment that values quality, curiosity, and continuous improvement.
Key ResponsibilitiesFeature Development
  • Implement well-scoped features across the frontend and backend stack.
  • Build user interface components using React.js and TypeScript, following established design systems and component library conventions.
  • Develop backend functionality and REST API endpoints using Python/FastAPI, with guidance from senior engineers.
  • Connect frontend and backend services and develop an understanding of application architecture and data flow.
  • Follow established coding patterns, style guides, development standards, and best practices.
Quality & Learning
  • Write unit tests and develop familiarity with integration testing practices.
  • Participate in code reviews, both receiving feedback on your work and gradually reviewing contributions from other team members.
  • Ask questions early, communicate blockers, and collaborate effectively with engineering leadership and technical leads.
  • Participate in Agile ceremonies, including standups, sprint planning, retrospectives, and demos.
  • Leverage modern AI-assisted development tools to improve productivity and learn engineering patterns and best practices.
Growth & Contribution
  • Take ownership of your professional development in partnership with your manager.
  • Participate in technical learning opportunities, architecture discussions, code pairing, and knowledge-sharing sessions.
  • Contribute ideas for improving engineering tools, documentation, development processes, and team practices.
  • Develop familiarity with AI-powered applications and common LLM integration patterns.
Required Qualifications
  • Bachelor's degree in Computer Science, Software Engineering, or a related field, or equivalent experience through a coding bootcamp, self-directed learning, or demonstrated personal projects.
  • 0-3 years of professional or internship software engineering experience.
  • Working knowledge of Python and/or JavaScript/TypeScript, with the ability to read and contribute to code in both languages.
  • Basic familiarity with React.js, including components, props, and state.
  • Understanding of REST APIs, including how to consume APIs and basic principles of API design.
  • Experience with Git, including branching, committing, creating pull requests, and resolving merge conflicts.
  • Ability to write basic SQL queries and understand relational database concepts.
  • Strong curiosity, willingness to learn, and ability to receive and apply constructive feedback.
Preferred Qualifications
  • Academic or personal project experience with FastAPI, Flask, or Django.
  • Experience building frontend applications with React.js, including coursework, hackathons, or personal projects.
  • Exposure to a cloud platform such as AWS, Azure, or GCP through coursework or personal projects.
  • Familiarity with AI/ML concepts or experience integrating an LLM API into a project.
  • Experience working in an Agile development environment through coursework, internships, or extracurricular projects.
Work Environment & Requirements
  • Hybrid work environment with structured in-office days to support onboarding, collaboration, and team engagement.
  • Ability to work at a computer workstation for extended periods.
  • Ability to use a keyboard, mouse, and other standard computer equipment.
  • Availability during standard business hours, with flexibility for team ceremonies and occasional production support as needed.

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