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Junior Full Stack Developer Jobs in Sunnyvale, CA

Chemify Ltd

Junior Full Stack Engineer

San Francisco, CA · On-site

$90 - $120/hr

The Role We are seeking a Junior Full Stack Software Engineer to join the team building the software behind Chemify's robotic synthesis platform. You will work across the stack on real features ...

Saige Partners

Full Stack Developer

San Jose, CA · On-site

$80 - $90/hr

Position: Full Stack Developer (San Jose, CA) Job Overview: We are seeking a Full Stack Software Developer with 4+ years of experience in developing scalable, efficient, and reliable software ...

4STAFFING, INC.

Full Stack Developer

San Jose, CA

As a Full Stack Developer, you will be responsible for designing, developing, and maintaining web applications with a focus on both front-end and back-end technologies. You will work collaboratively ...

Info Way Solutions

Full Stack Developer

Fremont, CA · On-site

Info Way Solutions is seeking a Full Stack Developer to join their team. The role requires strong development skills in Java and ReactJS, along with experience in UI development and excellent ...

Sparks Wiz Limited

Full Stack Developer

San Francisco, CA · On-site +1

$55 - $60/hr

Sparks Wiz Limited is an engineering consultancy firm seeking a Full Stack Developer to join our team. If you are a passionate and skilled Full Stack Developer looking to contribute to exciting ...

INTELLISWIFT INC

Full stack developer

San Ramon, CA

Full Stack Developer Location: San Ramon, CA Duration: 6 Months Fullstack developer Front end : Java script, html, CSS, any JavaScript libraries Should be good in java Back end : Oracle Responsive ...

Skild AI

Full Stack Developer

San Mateo, CA

Position Overview We are seeking a Full Stack Developer to help build and maintain our cloud infrastructure and web applications. This role requires expertise in modern web technologies and a strong ...

SoftSages Technology

Full Stack Developer

San Jose, CA · On-site

Company Description Full Stack Developer Requirements: MUST posses at least 7 years of development of web-based applications in both front and back-end roles. System architecture - Knowledge of how ...

Info Way Solutions

full stack developer

Fremont, CA · On-site

Info Way Solutions is a company seeking a Full Stack Engineer. The position requires skills in React JS, Java Spring Boot, and AWS exposure. Qualifications : Required : • React JS • Java Spring ...

Teserac, Inc.

Full Stack Developer

Sunnyvale, CA · On-site

Why You Would Be a Good Fit You are a full-stack engineer who takes pride in shipping features that are fast, clean, and production-ready. You're comfortable in unfamiliar territory -- whether that ...

E-Space

Full Stack Developer

Saratoga, CA · On-site

The Full Stack Developer will build scalable applications, dashboards, and automation tools while coordinating with multiple teams to gather requirements and feature requests. Responsibilities : • ...

INSPYR Solutions

Full Stack Developer

Menlo Park, CA · On-site

They are seeking a Full Stack Developer to code for both front and back-end programming, design user interactions, and develop servers and databases for website functionality. Responsibilities : • ...

Prodapt

Full stack Developer

San Jose, CA · On-site

We are seeking a talented Full Stack Software Developer with 5+ years of experience, in developing scalable, efficient, and reliable software applications. The candidate should have a strong ...

eTouch Systems

Full Stack Web Developer

San Jose, CA · On-site

Full Stack Developer Strong Java Programming Skills. Hands on needed Node.js backend React.js Front end If interested please share your resume and send it to srele at etouch.net Snehal Rele| Sr ...

Teserac, Inc.

Full Stack Developer

Santa Clara, CA · On-site

As a Full Stack Developer you will own features end to end, from the ingestion path that pulls telemetry off a BMS in a live facility, through the time-series layer that stores it, to the dashboard ...

eTouch Systems

Full Stack Web Developer

San Jose, CA · On-site

Full Stack Developer Strong Java Programming Skills. Hands on needed Node.js backend React.js Front end If interested please share your resume and send it to srele at etouch.net Snehal Rele/ Sr ...

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Junior Full Stack Developer information

See Sunnyvale, CA salary details

$28.2K

$104.4K

$161.4K

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

As of Aug 25, 2026, the average yearly pay for junior full stack developer in Sunnyvale, CA is $104,426.00, according to ZipRecruiter salary data. Most workers in this role earn between $78,600.00 and $102,100.00 per year, depending on experience, location, and employer.

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.

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.

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 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.

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.

More about Junior Full Stack Developer jobs

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For Junior Full Stack Developer jobs in Sunnyvale, CA, the most frequently searched job titles are:

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The top searched job categories for Junior Full Stack Developer jobs in Sunnyvale, CA are:

What cities near Sunnyvale, CA are hiring for Junior Full Stack Developer jobs?

Cities near Sunnyvale, 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 Sunnyvale, CA as of August 2026, with employment types broken down into 88% Full Time, 6% Part Time, 5% Contract, and 1% Nights. Highlights an 85% Physical, 4% Hybrid, and 11% Remote job distribution, with an average salary of $104,426 per year, or $50.2 per hour.

Junior Full Stack Engineer

San Francisco, CA • On-site

Chemify Ltd
See more jobs at Chemify Ltdexternal

$90 - $120/hr

Other

Posted 6 days ago

Job description

The Role

We are seeking a Junior Full Stack Software Engineer to join the team building the software behind Chemify’s robotic synthesis platform. You will work across the stack on real features — from backend services to the interfaces scientists use — with senior engineers close at hand to review your work and help you grow fast.

What sets this role apart is the platform itself: a rare early-career seat where the software you write helps physically make molecules, not just move data around.

If learning fast across the full stack on a real-world platform sounds like the right shape of job for you, we’d love to welcome you to our team.

Key Responsibilities
  • Build and ship full-stack features under the guidance of senior engineers.
  • Fix bugs, write tests, and improve tooling across backend services and web front-ends.
  • Learn how the platform turns experiment definitions into robotic execution, and contribute to it.
  • Take part in code reviews, design discussions — growing your ownership over time.
About You

You are early in your career but serious about the craft — curious, quick to learn, and energised by hard problems. You ask good questions, act on feedback, and want to grow alongside engineers who will push you.

We expect you to bring:

  • 0–2 years of software experience (internships, projects, or a strong portfolio count).
  • Working knowledge of at least one backend language ([Python/C/C++)]
  • Strong fundamentals and a genuine appetite to learn quickly.
  • Clear communication and comfort asking questions and acting on feedback.

Beneficial Skills

  • A degree in computer science, engineering, or a related field — or equivalent self-taught proof.
  • Any exposure to robotics, hardware, lab automation, or scientific computing.
Why Join Chemify?

Impact. Even early on, your work ships into a platform that physically makes molecules — you will see the results of what you build.

Autonomy. You will be trusted with real features from the start and given room to grow your ownership.

Ambition. We are a Series B deep-tech company at the frontier of AI, robotics, and chemistry — a place to learn fast, surrounded by people who will raise your bar.

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