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Junior Full Stack Developer Jobs in Simi Valley, CA

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 ...

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 ...

Staffactory

Full Stack Developer

Los Angeles, CA · On-site

Full Stack Developer Location: Los Angeles, CA Work Environment: Position is hybrid. Local Southern California is preferred. The candidate must be willing to go onsite. Key responsibilities: * Full ...

PBK

Full Stack Developer III

Los Angeles, CA

The Full Stack Developer III builds and supports applications, integrations, and digital tools that enable PBK's Architecture vertical and broader AEC operations. This role partners closely with ...

Jobsbridge

Java Full Stack Developer

Los Angeles, CA · On-site

$56.50 - $73/hr

Full Stack Developers with good J2EE experience. Strong background in J2EE development, Spring framework, Java Script (Angular JS, Node JS) - Strong knowledge of data structures and OOPs design ...

Staffingine LLC

Full Stack Developer

Santa Monica, CA · On-site

Serve as senior full stack engineer developing responsive web/mobile applications in REACT and Native REACT frontend & back-end functionality. * Contribute to the design and architecture applications.

Aquent

Full Stack Developer

Culver City, CA · On-site +1

$81 - $90/hr

As a Full Stack Developer for Data Apps, you will design and develop end-to-end data applications spanning interactive frontends, middleware services, and data-serving APIs. This role requires a 70 ...

Perr&Knight

Senior Full Stack Developer

Santa Monica, CA

$130K - $150K/yr

Employee Recognition Program Perr&Knight is looking for a Senior Full-Stack Developer to fulfill the following objectives on our PK1Cloud Software team: * Collaborating with product and architecture ...

Jobsbridge

Java Full Stack Developer

Los Angeles, CA

$56.50 - $73/hr

Full Stack Developers with good J2EE experience. Strong background in J2EE development, Spring framework, Java Script (Angular JS, Node JS) - Strong knowledge of data structures and OOPs design ...

Perr&Knight

Senior Full Stack Developer

Santa Monica, CA · On-site

$130K - $150K/yr

Employee Recognition Program Perr&Knight is looking for a Senior Full-Stack Developer to fulfill the following objectives on our PK1Cloud Software team: * Collaborating with product and architecture ...

Compunnel

.Net full stack developer

Beverly Hills, CA · On-site

NET Full Stack Developer to join their team. The ideal candidate will have strong expertise in C#, ASP.NET, JavaScript, and SQL, with experience developing scalable enterprise applications. This role ...

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Junior Full Stack Developer information

See Simi Valley, CA salary details

$24.8K

$91.8K

$141.9K

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

As of Jul 28, 2026, the average yearly pay for junior full stack developer in Simi Valley, CA is $91,849.00, according to ZipRecruiter salary data. Most workers in this role earn between $69,200.00 and $89,800.00 per year, depending on experience, location, and employer.

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

AspectJunior Full Stack DeveloperFront End Developer
Required SkillsHTML, CSS, JavaScript, basic backend knowledge, frameworks like React or AngularHTML, CSS, JavaScript, UI/UX design, frameworks like React, Angular, or Vue
Work EnvironmentCollaborates on both client-side and server-side projects, often in startups or tech companiesFocuses on user interface and experience, primarily in web development teams
Common UsageEntry-level role for full stack development in various industriesSpecialized role focusing on front-end development in web projects

The main difference is that a Junior Full Stack Developer works on both front-end and back-end tasks, while a Front End Developer specializes in creating and optimizing user interfaces. The Junior Full Stack Developer has a broader skill set, whereas the Front End Developer focuses more on design and user experience.

What does a junior full stack developer do?

A junior full stack developer assists in designing, developing, and maintaining both the front-end and back-end components of web applications. They typically work with programming languages like JavaScript, HTML, CSS, and server-side technologies, often under the guidance of senior developers. Their role involves coding, debugging, and collaborating with teams to deliver functional software solutions.

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

To thrive as a Junior Full Stack Developer, you need a solid understanding of front-end and back-end programming languages (such as JavaScript, HTML/CSS, and a back-end language like Python or Node.js), along with a relevant degree or coding bootcamp certification. Familiarity with frameworks (like React or Angular), version control systems (such as Git), and basic database management is typically required. Strong problem-solving skills, adaptability, and effective teamwork set standout developers apart. These skills are crucial for building robust, user-friendly applications and collaborating efficiently in fast-paced development environments.

What is a Junior Full Stack Developer?

A Junior Full Stack Developer is an entry-level software engineer who is capable of working on both the front-end and back-end components of web applications. They typically have foundational knowledge of programming languages such as JavaScript, HTML, CSS, as well as experience with frameworks like React, Node.js, or similar technologies. Junior Full Stack Developers collaborate with more experienced developers to build, test, and maintain web applications. Their responsibilities often include writing code, debugging, and learning best practices under supervision. This role is ideal for individuals looking to grow their skills in all areas of web development.

How much does a junior full stack developer make?

A junior full stack developer typically earns between $50,000 and $80,000 annually, depending on location, industry, and experience. Entry-level roles often require knowledge of front-end and back-end technologies such as JavaScript, HTML, CSS, and frameworks like React or Node.js.

What Does a Junior Full Stack Developer Do?

A full stack developer works on both the user-facing and back-end elements of websites and applications. A junior full stack developer works under the supervision of a senior developer. In this position, your duties include handling coding responsibilities for front-end, user-facing elements. You use JavaScript, HTML, and CSS for this part of the job. You also use languages such as Python, SQL, and PHP for the back-end system of a website, including the database, cloud network, and security features. In addition to coding, you test and debug your developments and work with other team members using development strategies and methodologies.

Will AI replace full stack dev?

AI is unlikely to fully replace junior full stack developers, as the role requires complex problem-solving, creativity, and understanding of user needs that AI cannot replicate. Instead, AI tools can assist developers by automating repetitive tasks and improving efficiency, allowing developers to focus on higher-level design and logic. Continuous learning of programming languages, frameworks, and AI integration is important for staying relevant in this evolving field.

What are some common challenges Junior Full Stack Developers face during their first year on the job?

Junior Full Stack Developers often encounter challenges such as balancing the demands of both front-end and back-end development, adapting to new frameworks or tools, and managing time effectively across multiple projects. Collaborating with more experienced team members and understanding how to communicate technical concepts clearly can also be a learning curve. Regular code reviews and mentorship are commonly provided to help junior developers grow their skills and confidence in a supportive team environment.

How much does a junior full stack developer earn?

A junior full stack developer typically earns between $50,000 and $80,000 annually, depending on location, industry, and experience. Entry-level roles often require knowledge of programming languages like JavaScript, Python, or Java, and familiarity with frameworks such as React or Node.js.
More about Junior Full Stack Developer jobs
What are the most commonly searched types of Full Stack Developer jobs in Simi Valley, CA? The most popular types of Full Stack Developer jobs in Simi Valley, CA are:
What job categories do people searching Junior Full Stack Developer jobs in Simi Valley, CA look for? The top searched job categories for Junior Full Stack Developer jobs in Simi Valley, CA are:
What cities near Simi Valley, CA are hiring for Junior Full Stack Developer jobs? Cities near Simi Valley, CA with the most Junior Full Stack Developer job openings:
Junior Full Stack Developer jobs near you
Infographic showing various Junior Full Stack Developer job openings in Simi Valley, CA as of July 2026, with employment types broken down into 84% Full Time, 9% Part Time, and 7% Contract. Highlights an 70% In-person, and 30% Remote job distribution, with an average salary of $91,849 per year, or $44.2 per hour.

Jr. Full Stack Engineer

Fuser

Los Angeles, CA • On-site

$70K - $90K/yr

Full-time

Medical, Dental, Vision, Retirement

Posted 28 days ago

Job description

Why You're Here
We've launched our public beta with a strong foundation-multiplayer infrastructure, a node-based canvas, and dozens of AI integrations-and we're growing fast.
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 is perfect for someone who's built projects end-to-end, loves learning new tools, and wants to grow into a senior engineering position on a product that merges art, design, and technology.
What You'll Do
  • Contribute to feature development across the stack
  • Implement UI components and user interactions in React + TypeScript
  • Support backend endpoints, data models, and APIs
  • Test, debug, and improve performance for real-time workflows
  • Learn from senior engineers while developing ownership over key areas

Must-Have Competencies
  • 1-3 years of experience (or equivalent personal projects) in full-stack or front-end development
  • Proficiency in React + TypeScript
  • Familiarity with Node, tRPC, or similar frameworks
  • Curiosity about distributed systems or creative/AI tools
  • Understanding of web fundamentals and component architecture
  • Eagerness to learn, iterate, and grow within a small, fast-moving team

Nice-to-Have Competencies
  • Experience with canvas or node-based tools (React Flow, Blender, WebGPU)
  • Familiarity with creative or AI-driven software
  • Contributions to open-source projects
  • Background or interest in art, design, music, or creative tech

Our Stack
Frontend: React 19, TypeScript, React Router v7, Zustand, TanStack Query, @xyflow/react, React Aria Components, Tailwind CSS, Framer Motion, React Three Fiber
Backend: tRPC, Hono, Cloudflare Workers, PostgreSQL (Supabase), Durable Objects, Drizzle ORM, Cloudflare D1, Better Auth, Stripe, AI SDK
Infrastructure: Cloudflare Workers, KV, D1, Hyperdrive, Cron Triggers, Turborepo, pnpm, Node.js 22+
Observability & Tooling: Vite, ESLint, Prettier, Husky, Zod, Sentry, PostHog
How We Work
  • Hybrid, flexible, async-friendly - based in LA with 2 in-office days each week.
  • Creative-first culture - we care about accessibility, design, and feel.
  • High trust, high standards - ownership early, autonomy always.
  • Small team, big impact - every commit shapes the future of the product.

Compensation & Benefits
  • $70K-$90K USD depending on experience (equity included)
  • Healthcare, dental, vision, and 401(k)
  • Flexible hours and focus on deep work
  • Generous equity and real product ownership
  • Mentorship and leadership growth as we scale

How We Interview
  1. Intro Call - Meet one or two of us to talk about your background, our mission, and how we work.
  2. Technical Conversation - Complete a live technical assessment based on a real-world problem followed by a discussion on your approach to architecture, problem-solving, and building for usability.
  3. Technical Take-home - A scoped technical project with compensation
  4. Team Conversation - Meet with core team and have a discussion about collaboration, culture, and long-term vision.

We welcome candidates who may not have the "right" title but have the skills, mindset, and drive to thrive here.
At Fuser, the process is the point.
Fuser is a creative technology company founded by artists, educators, and engineers. We're building tools for professionals who ideate, orchestrate, and deliver with intention. Our flagship product is a collaborative canvas for working across text, image, video, audio, and 3D, powered by the latest AI models.
We're a small team in Los Angeles designing the future of creative software: joyful, intuitive, and powerful tools for real-world storytelling and production.

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