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Founding Full Stack Software Engineer Jobs in Pasadena, CA

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Full Stack Software Engineer

Los Angeles, CA · On-site

$130K - $150K/yr

As our Full-Stack Software Engineer, you'll own the internal platform that keeps production and business operations moving: building features, integrating with our ERP and supplier systems, and ...

Divergent

Full Stack Software Engineer II

Torrance, CA · On-site

Purpose Divergent is seeking a Full-Stack Software Engineer II to help build and scale the software platforms that power our next-generation digital manufacturing ecosystem. In this role, you will ...

Divergent

Full Stack Software Engineer

Torrance, CA · On-site

$122K - $224K/yr

Purpose We're seeking a Full-Stack Software Engineer with solid experience in application development, data modeling, and feature implementation to join our growing team. In this role you will write ...

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All JobsFounding Full Stack Software Engineer JobsFounding Full Stack Software Engineer Jobs in Pasadena, CA

Founding Full Stack Software Engineer information

See Pasadena, CA salary details

$48.5K

$147K

$207.8K

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

As of Aug 8, 2026, the average yearly pay for founding full stack software engineer in Pasadena, CA is $147,008.00, according to ZipRecruiter salary data. Most workers in this role earn between $121,100.00 and $172,300.00 per year, depending on experience, location, and employer.

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

To thrive as a Founding Full Stack Software Engineer, you need deep expertise in both front-end and back-end development, strong problem-solving skills, and experience building scalable web applications, usually demonstrated by a degree in computer science or equivalent experience. Mastery of tools and frameworks such as JavaScript, React, Node.js, cloud platforms (AWS, GCP), and version control systems like Git is typically required. Exceptional communication, adaptability, and entrepreneurial mindset are crucial for collaborating in a dynamic startup environment and driving product vision. These skills are vital for rapidly iterating, shipping robust products, and establishing a strong technical foundation for a growing company.

What is a founding full stack software engineer?

Founding Full Stack Software Engineers are technical professionals who join a startup at its earliest stages to help build and shape the company's core products and technology infrastructure. They work across both the front-end and back-end of applications and play a key role in making architectural decisions, setting up development processes, and establishing the technical foundation. As 'founding' team members, they often have greater responsibilities, including working closely with company founders, contributing to product strategy, and sometimes receiving equity or a stake in the company.

What unique challenges might I face as a founding full stack software engineer in an early-stage startup?

As a Founding Full Stack Software Engineer, you’ll often juggle multiple responsibilities, from designing core architecture to deploying code and setting up development workflows. Since resources are limited and the product vision can evolve quickly, adaptability and strong communication with founders and other early team members are key. You may also be deeply involved in decisions beyond pure engineering, such as hiring, product strategy, and even customer support. This environment can be both demanding and highly rewarding, offering accelerated learning and significant influence over the company’s technical direction.
What are popular job titles related to Founding Full Stack Software Engineer jobs in Pasadena, CA? For Founding Full Stack Software Engineer jobs in Pasadena, CA, the most frequently searched job titles are:
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Founding Full Stack Software Engineer jobs near you
Infographic showing various Founding Full Stack Software Engineer job openings in Pasadena, CA 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 $147,008 per year, or $70.7 per hour.

Senior Full Stack Software Engineer

twenty80.io

Los Angeles, CA • On-site, Remote

$160K - $210K/yr

Full-time

Medical, Dental, Vision, PTO

Re-posted 25 days ago

Job description

About the Role

A growing technology startup is hiring a Senior Full Stack Software Engineer to help build and scale its core product. This engineer will work across the frontend and backend, contributing directly to customer-facing features as well as internal systems. The role offers a high level of ownership and influence over technical decisions in a fast-paced environment.

This position is well-suited for an engineer who enjoys working closely with product and design, shipping quickly, and improving systems over time.

What You’ll Do

  • Build and maintain full stack web applications used by customers and internal teams

  • Develop scalable backend services and APIs to support product features

  • Implement modern, responsive frontend interfaces with a focus on usability and performance

  • Collaborate with product managers and designers to define requirements and deliver solutions

  • Contribute to architectural decisions and technical roadmap planning

  • Write high-quality, well-tested code and participate in code reviews

  • Help improve engineering processes, tooling, and system reliability

  • Mentor junior engineers and contribute to a strong engineering culture

Tech Environment

The engineering team works with a modern startup stack, including:

  • Frontend: React, TypeScript, Next.js

  • Backend: Node.js (Express or NestJS) and/or Python (Django or FastAPI)

  • Databases: PostgreSQL, Redis

  • Cloud & Infrastructure: AWS or GCP, Docker, CI/CD

  • APIs: REST and GraphQL

  • Tools: Git, GitHub, modern monitoring and logging tools

What We’re Looking For

  • 5+ years of professional software engineering experience

  • Strong full stack experience with modern JavaScript/TypeScript

  • Proven experience building and maintaining backend services and APIs

  • Solid understanding of relational databases and data modeling

  • Experience deploying and operating applications in cloud environments

  • Ability to work independently and take ownership of projects

  • Prior experience in a startup or fast-moving product team is a plus

Compensation & Benefits

  • Base Salary: $160,000 – $210,000 (San Francisco senior-level range)

  • Equity: Competitive equity package

  • Benefits: Medical, dental, vision coverage; flexible PTO; standard startup benefits

  • Work Model: Hybrid or remote-friendly depending on location and team needs

Equal Opportunity

This role is with an equal opportunity employer. Qualified applicants will be considered without regard to race, color, religion, gender, sexual orientation, gender identity, age, disability, or veteran status.