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Junior Full Stack Engineer Jobs in California (NOW HIRING)

Purple Unicorn

Full-Stack Engineer

San Francisco, CA · On-site

$120K - $150K/yr

Purple Unicorn, on behalf of SalesPatriot , is hiring an Full Stack Engineer . Non-negotiable: ALL ROLES ARE ON-SITE IN SAN FRANCISCO. IN ORDER TO BE CONSIDERED YOU MUST BE LOCAL OR WILLING TO MOVE

Info Way Solutions

Full stack engineer

Fremont, CA · On-site

Info Way Solutions is seeking a Senior Full Stack Engineer with expertise in React and Rails. The role involves working on big data systems and delivering high-quality solutions in a collaborative ...

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 ...

Purple Unicorn

Full-Stack Engineer

San Francisco, CA · On-site

$120K - $150K/yr

Purple Unicorn, on behalf of SalesPatriot , is hiring an Full Stack Engineer . Non-negotiable: ALL ROLES ARE ON-SITE IN SAN FRANCISCO. IN ORDER TO BE CONSIDERED YOU MUST BE LOCAL OR WILLING TO MOVE

Hotplate

Full Stack Engineer

San Francisco, CA · On-site

They are seeking a Full Stack Engineer to build end-to-end features that enhance the business operations of their users. The role involves participating in the full process of feature development ...

Info Way Solutions

Full stack engineer

Fremont, CA · On-site

Info Way Solutions is seeking a Senior Full Stack Engineer with expertise in React and Rails. The role involves working with big data systems and requires strong problem-solving skills to deliver ...

iQuasar LLC

Full Stack Engineer

San Diego, CA · On-site

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

IQUASAR LLC

Full Stack Engineer

San Diego, CA · On-site

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

RST Recruitment

Full Stack Engineer

San Francisco, CA · On-site

$180K - $240K/yr

We're looking for Full Stack Engineers with 2-8 years of experience in full stack engineering who has hands-on experience building AI agents and utilizing LLMs effectively. You should be comfortable ...

S Linx LLC

Full Stack Engineer

Los Angeles, CA · On-site

Full Stack Engineer Location: Hollywood, LA, Califonia (Onsite) Duration: 6 Months (Contract-to-Hire) Required Skills * Strong experience with Swift, SwiftUI, and AppKit (NSCollectionView ...

Mill

Senior Full Stack Engineer

San Bruno, CA · On-site

$185K - $210K/yr

Mentor junior engineers, fostering a culture of continuous learning and improvement. * Conduct code ... on full-stack development * Deep experience with modern frontend frameworks (e.g. React, Vue ...

Mill

Senior Full Stack Engineer

San Bruno, CA · On-site

$185K - $210K/yr

Mentor junior engineers, fostering a culture of continuous learning and improvement. * Conduct code ... on full-stack development * Deep experience with modern frontend frameworks (e.g. React, Vue ...

Erth.AI Inc.

Full Stack Engineer

San Francisco, CA · On-site

$120K - $150K/yr

Full Stack Engineer: We are in search of a dynamic Full-Stack Engineer to work as part of our product and backend engineering initiatives within Dot Earth, a thriving incubator. .Erth is presently ...

Mintex Technology

Full Stack Engineer

San Francisco, CA · On-site

$180K - $210K/yr

Title: Full Stack Engineer Client: AI ERP Company Location: San Francisco Bay Area, CA (Hybrid - 4 Days Onsite) Job Type: Full-Time | Direct Hire | Permanent Position Overview: ***** is seeking a ...

Erth.AI Inc.

Full Stack Engineer

San Francisco, CA · On-site

$120K - $150K/yr

Full Stack Engineer: We are in search of a dynamic Full-Stack Engineer to work as part of our product and backend engineering initiatives within Dot Earth, a thriving incubator. .Erth is presently ...

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Showing results 21-40

All JobsFull Stack Engineer JobsJunior Full Stack Engineer JobsJunior Full Stack Engineer Jobs in California

Junior Full Stack Engineer information

See California salary details

$45.9K

$93.3K

$140.1K

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

As of Sep 5, 2026, the average yearly pay for junior full stack engineer in California is $93,304.00, according to ZipRecruiter salary data. Most workers in this role earn between $72,000.00 and $94,200.00 per year, depending on experience, location, and employer.

What is a junior full stack engineer?

A Junior Full Stack Engineer is an entry-level software developer who works on both the front-end and back-end of web applications. They are typically responsible for building, testing, and maintaining features across the entire technology stack, often under the supervision of more experienced engineers. Juniors work with languages and frameworks such as JavaScript, HTML, CSS, Node.js, and databases like SQL or MongoDB. While they may not have deep expertise yet, they are expected to learn quickly, collaborate with team members, and gradually take on more complex tasks.

What are the key skills and qualifications needed to thrive as a junior full stack engineer?

To thrive as a Junior Full Stack Engineer, you need a solid understanding of front-end and back-end development concepts, programming languages like JavaScript, HTML, CSS, and familiarity with frameworks such as React and Node.js, often supported by a bachelor's degree in computer science or related experience. Experience using version control systems like Git, basic database management (SQL/NoSQL), and cloud platforms is typically required. Strong problem-solving, teamwork, and communication skills help you collaborate effectively and adapt to fast-changing project needs. These abilities are essential for building reliable, scalable web applications and contributing meaningfully to development teams.

How does a junior full stack engineer typically collaborate with other team members on a project?

As a Junior Full Stack Engineer, you’ll regularly work alongside front-end and back-end developers, designers, and product managers to deliver features and resolve issues. Collaboration often includes participating in daily stand-ups, code reviews, and sprint planning sessions. You’ll be expected to communicate progress and challenges clearly, seek guidance when needed, and contribute to shared code repositories using version control tools like Git. This collaborative environment helps you learn quickly and build strong relationships within a multidisciplinary team.

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

AspectJunior Full Stack EngineerJunior Front End Developer
Required SkillsProficiency in both front-end and back-end technologies (HTML, CSS, JavaScript, server-side languages, databases)Strong skills in HTML, CSS, JavaScript, and front-end frameworks (React, Angular, Vue)
Work EnvironmentWorks on both client-side and server-side development, often in full project cyclesFocuses primarily on user interface and user experience development
Common UsageUsed in startups and small to medium companies requiring versatile developersCommon in companies emphasizing UI/UX and front-end design

The main difference is that a Junior Full Stack Engineer handles both front-end and back-end tasks, while a Junior Front End Developer specializes in user interface development. The full stack role requires knowledge of server-side technologies, whereas the front-end role focuses on creating engaging user experiences.

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

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

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

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

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

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

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

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

Junior Full Stack Engineer jobs near you
Infographic showing various Junior Full Stack Engineer job openings in California as of August 2026, with employment types broken down into 100% Full Time. Highlights an 100% In-person job distribution, with an average salary of $93,304 per year, or $44.9 per hour.

Full-Stack Engineer

Purple Unicorn

San Francisco, CA • On-site

$120K - $150K/yr

Full-time

Medical, Retirement, PTO

Re-posted 18 days ago

Job description

Purple Unicorn, on behalf of SalesPatriot, is hiring an Full Stack Engineer. 

Non-negotiable: ALL ROLES ARE ON-SITE IN SAN FRANCISCO. IN ORDER TO BE CONSIDERED YOU MUST BE LOCAL OR WILLING TO MOVE

*** Must be authorized to work in the US***

The Mission

America's industrial base runs on systems built in the 1980s.

Billions of dollars in critical components (F-35 parts, industrial assemblies, electronics, bolts, and hoses) still move through email threads, excel sheets, and disconnected ERPs.

We're replacing that with an AI-native platform that makes defense, aerospace, and industrial supply-chain operations nearly autonomous. Faster quoting. Faster procurement. Full visibility. Real operational intelligence for the companies our nation depends on.

Quick Facts
  • YC W25 company. Top 5% growth in batch
  • Raised $10M+ from investors including Paul Graham, SV Angel, Pear VC, and CRV
  • Team of 20 co-live in our SF & Warsaw Hacker Houses
  • 7 figure ARR transacting ~$50M a week through our system
The Role

Our Full Stack Engineers work closely with other engineers on the platform team and customer-facing forward deployed teams to design, build, and maintain robust full-stack systems that integrate with complex legacy environments and support high-value, high-impact supply chain systems.

  • Full time, in-person in SF. This is not a remote role.
  • Backend-leaning fullstack role using Svelte/Typescript/Postgres.
  • Design, develop, and maintain full-stack application functionality, including:
  • Organize, keep track of, and deliver multiple projects in parallel
What We're Looking For
  • Absolute grinder. Interested in co-living (though not required).
  • Comfortable with ambiguity and rapid change.
  • Track record of shipping fast.
  • Experience architecting systems independently
  • Motivated by taking an unknown problem, sinking your teeth in, and coming up with a plan of attack.
  • Experience in shipping projects and products. Be ready to show us at least one full-stack project (GitHub repo / web app / Loom demo video).
  • Proficiency in TypeScript, JavaScript, and at least one frontend library (React, Svelte, Next etc).
  • Knowledge of SQL databases, preferably Postgres.
  • Proficiency in writing, optimizing, and troubleshooting complex SQL queries for data extraction, transformation, and integration.
  • Strong understanding of software engineering best practices, including version control, testing, and documentation
  • Ability to work effectively in fast-paced, high-accountability environments
  • Low ego, curiosity, and intellectual honesty - focused on outcomes, not being right"

Salary & Benefits

  • $120-$150K
  • Medical (Partially paid)
  • PTO
  • 401K pending