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Founding Full Stack Engineer Jobs in Castro Valley, CA

Satori Digital

Full Stack Engineer

San Francisco, CA · On-site

$175K - $220K/yr

We're looking for a product minded Full Stack Software Engineer who thrives at the intersection of ... Either as one of three profiles: a) joined early and seen scale over 3-5+ years, b) founding ...

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 ...

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

Purple Unicorn

Full-Stack Engineer

San Francisco, CA

$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 with big data systems and requires strong problem-solving skills to deliver ...

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 ...

Clera

Founding Engineer (Full-Stack)

San Francisco, CA · On-site

$175K - $200K/yr

About the Role Join an early-stage, Y Combinator-backed AI marketing automation startup as a Founding Engineer (Full-Stack) . You'll be one of the first engineers on the team, taking full ownership ...

RST Recruitment

Full Stack Engineer

San Francisco, CA · On-site

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 ...

Clera

Founding Engineer (Full-Stack)

San Francisco, CA · On-site

$175K - $200K/yr

About the Role Join an early-stage, Y Combinator-backed AI marketing automation startup as a Founding Engineer (Full-Stack) . You'll be one of the first engineers on the team, taking full ownership ...

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 ...

Erth.AI Inc.

Full Stack Engineer

San Francisco, CA

$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 ...

Clera

Founding Engineer - Full Stack

San Francisco, CA · On-site

$150K - $250K/yr

About the Role A Y Combinator-backed AI startup is looking for a Founding Engineer - Full Stack to join a small founding team at the ground floor. The company operates at the intersection of AI ...

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All JobsFounding Full Stack Engineer JobsFounding Full Stack Engineer Jobs in Castro Valley, CA

Founding Full Stack Engineer information

See Castro Valley, CA salary details

$51.4K

$155.5K

$219.8K

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

As of Sep 2, 2026, the average yearly pay for founding full stack engineer in Castro Valley, CA is $155,515.00, according to ZipRecruiter salary data. Most workers in this role earn between $128,100.00 and $182,300.00 per year, depending on experience, location, and employer.

What is a founding full stack engineer?

A Founding Full Stack Engineer is an early, core technical team member at a startup who is responsible for building both the front-end and back-end of the company's product. This role goes beyond typical engineering, often involving product decisions, architecture design, and collaborating directly with the founders. Founding Full Stack Engineers help shape the company's culture, technical direction, and can have significant equity stake. Their work is crucial in taking the business from idea to launch, often in a fast-paced, resource-limited environment.

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

To thrive as a Founding Full Stack Engineer, you need expertise in both front-end and back-end development, deep knowledge of programming languages like JavaScript, Python, or Ruby, and experience with scalable architectures, often backed by a degree in computer science or equivalent experience. Familiarity with frameworks (React, Node.js, Django), version control systems (Git), cloud platforms (AWS, GCP), and DevOps practices is typically required. Strong problem-solving, initiative, adaptability, and excellent communication distinguish successful candidates, enabling effective collaboration in a startup environment. These skills and qualities are crucial for building robust products rapidly and influencing the company's technical direction from its early stages.

What unique challenges might a founding full stack engineer face when joining an early-stage startup?

As a Founding Full Stack Engineer at an early-stage startup, you'll often balance building core product features with setting up foundational technical infrastructure. This role typically requires wearing multiple hats, from architecting systems and writing code to making critical technology decisions and collaborating closely with non-technical founders. You may encounter challenges such as ambiguous requirements, shifting priorities, and limited resources, but you'll also have significant influence over the company's technical direction. The dynamic environment encourages rapid learning and offers accelerated career growth, particularly for those who thrive in fast-paced, collaborative settings.

What is the difference between Founding Full Stack Engineer vs Full Stack Engineer?

AspectFounding Full Stack EngineerFull Stack Engineer
CredentialsTypically requires proven full stack development experience, sometimes with startup or early-stage company involvementRequires relevant full stack development skills, often with formal education or certifications
Work EnvironmentEarly-stage startups or founding teams, often wearing multiple hatsEstablished companies or startups, focused on project delivery
Employer & Industry UsageFounding teams, startups, tech entrepreneursTech companies, agencies, startups, corporate IT teams

Founding Full Stack Engineers are key players in early-stage startups, often involved in building core products from scratch and shaping company technology. Full Stack Engineers work across various company sizes, focusing on developing and maintaining applications. The main difference lies in the startup environment and level of involvement in founding the company.

What job categories do people searching Founding Full Stack Engineer jobs in Castro Valley, CA look for?

The top searched job categories for Founding Full Stack Engineer jobs in Castro Valley, CA are:

What cities near Castro Valley, CA are hiring for Founding Full Stack Engineer jobs?

Cities near Castro Valley, CA with the most Founding Full Stack Engineer job openings:

Founding Full Stack Engineer jobs near you
Infographic showing various Founding Full Stack Engineer job openings in Castro Valley, CA as of August 2026, with employment types broken down into 91% Full Time, and 9% Contract. Highlights an 90% In-person, and 10% Remote job distribution, with an average salary of $155,515 per year, or $74.8 per hour.

Full Stack Engineer

Satori Digital

San Francisco, CA • On-site

$175K - $220K/yr

Full-time

Re-posted 13 days ago

Job description

We're looking for a product minded Full Stack Software Engineer who thrives at the intersection of product, engineering, and experimentation. We're a small talented team still in the early days of building, and your contributions will go beyond just code. You'll have the opportunity to actively shape technical solutions, influence product direction, and contribute meaningfully to all aspects of our engineering culture.
In this role, you'll collaborate closely with forward-deployed engineers as they support complex customer deployments, all while developing the scalable and robust foundational product which makes their work possible. You're perfect for this role if you appreciate an elegant balance between UX excellence and infrastructural scalability.
What You'll Do:
  • Collaborate with our forward deploy team to understand how customers interact with Automat's platform today, and use those learnings to bolster our flagship workflow management product.
  • Build interfaces that use cutting-edge computer use models in real world applications.
  • Develop beautiful and intuitive UX interfaces which abstract away complex business automation processes and create a seamless experience for non-technical users and engineers alike
  • Influence our engineering practices, shape product direction, and contribute to building a world class company culture.

Requirements
  • 3 - 10 years of experience
  • Either as one of three profiles: a) joined early and seen scale over 3-5+ years, b) founding engineer at multiple places, or c) 5+ years at a FAANG

Compensation
$175K - $220K range
Equity; 0.25% - 1%
Tech stack
  • Javascript/Typescript, Next.js, React, PostgreSQL, SvelteKit, Supabase, Vercel

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