2

Fulltime Software Engineer Startup Jobs in California

Required : • 3-7+ years of full-time software engineering experience (*open to multiple levels of ... Startup or SaaS experience preferred Company : Merge is one API to add hundreds of integrations to ...

Required : • 3-7+ years of full-time software engineering experience (*open to multiple levels of ... Startup or SaaS experience preferred Company : Merge is one API to add hundreds of integrations to ...

Be Seen First

Software Engineer

San Francisco, CA · On-site

$180K - $200K/yr

Role: Software Engineer, Product Location: San Francisco, CA-Onsite Job Type- Full Time (USC ... Strong startup experience, product ownership, and customer-facing mindset required. AI/LLM ...

As an AI infrastructure startup, we are developing innovative systems to enable large-scale AI ... Participate in all parts of software engineering, ranging from design and implementation of ...

As an AI infrastructure startup, we are developing innovative systems to enable large-scale AI ... Participate in all parts of software engineering, ranging from design and implementation of ...

Software Engineer

San Francisco, CA · On-site

$170K - $220K/yr

... full-time software engineering experience (*open to multiple levels of seniority) * An ability to perform in a fast paced environment dealing with ambiguous technical challenges * Startup or SaaS ...

Software Engineer

San Francisco, CA · On-site +1

$170K - $220K/yr

... full-time software engineering experience (*open to multiple levels of seniority) * An ability to perform in a fast paced environment dealing with ambiguous technical challenges * Startup or SaaS ...

Software Engineer BREV/AN is at the forefront of revolutionizing how businesses leverage artificial ... You get to experience the 0-1 of building a startup, working with talented engineers from ...

Staff Software Engineer

San Francisco, CA · On-site

$230K - $290K/yr

We're one of the fastest growing marketplaces and were recently named the #1 Best Startup Employer ... As our next Staff Software Engineer, you likely have: * 8+ years of full-time software engineering ...

... startup or high-growth environment. * Strong foundation in software engineering best practices ... including code quality, testing, and deployment * Command of one or more modern programming ...

We are considering full-time/ part-time applicants for Summer and Fall 2026. The ideal candidate ... They should also be excited to adapt, learn quickly, and grow in a fast-paced startup environment.

We are considering full-time/ part-time applicants for Summer and Fall 2026. The ideal candidate ... They should also be excited to adapt, learn quickly, and grow in a fast-paced startup environment.

next page

Showing results 1-20

Fulltime Software Engineer Startup information

What cities in California are hiring for Fulltime Software Engineer Startup jobs? Cities in California with the most Fulltime Software Engineer Startup job openings:

Software Engineer

David Joseph & Company

San Francisco, CA

$175K - $225K/yr

Full-time

Posted 17 days ago


Job description

Software Engineer

Location: San Francisco, CA (Onsite, 5 days/week)
Compensation: $175,000 – $225,000 base + equity
Experience Level: 1–4 years
Employment Type: Full-Time

About the Company

The Company builds enterprise AI agents for some of the largest companies in the world — working with $1B–$100B revenue enterprises with a reported 100% production deployment success rate. The team includes talent from Meta, AWS Bedrock, Citadel Securities, McKinsey, and Stanford.

About the Role

This is a high-ownership engineering role building and deploying production AI agents into major enterprise environments. You will ship production code daily, own code quality and engineering standards, and progress toward leading a small engineering team within 6 months.

What You'll Own
  • Build production AI agents against audit specifications
  • Deploy solutions into Salesforce, NetSuite, D365, and similar enterprise systems
  • Ship production code daily
  • Own code quality and engineering standards
  • Take ownership across systems without waiting for direction
  • Progress toward leading a small engineering team within 6 months
Requirements
  • 1–4 years of professional software engineering experience
  • Strong software engineering fundamentals and production development experience
  • AI-native builder experience with Claude, Codex, agent frameworks, or API loops
  • Fast execution and strong ownership mentality
  • Comfortable operating in ambiguity
  • Able to receive and implement feedback quickly
  • Willing to work onsite in San Francisco 5 days/week
Target Backgrounds

Strong signals include experience at Ramp, Cursor, xAI, or top AI-native startups, strong GitHub presence, open source contributions, agent infrastructure experience, LLM application development, and a systems-thinking mindset. Ideal roles: Product Engineer, Software Engineer, AI Engineer, Full Stack Engineer, Agent Infrastructure Engineer, LLM Applications Engineer, Startup Engineer, Founding Engineer, or Early-Stage Startup Builder.

This Role Is NOT For
  • Vibe-coding-only backgrounds
  • Candidates who cannot explain shipped projects
  • Slow executors with weak engineering fundamentals
  • Poor response to feedback
  • Framework memorization without systems understanding
Interview Process
  1. Pending approval
  2. Initial screen
  3. First round
  4. Second round
  5. Third round
  6. Onsite
  7. Offer
Logistics
  • Role is fully onsite in San Francisco — 5 days/week — please only apply if you can commit to this

Shortlisted candidates will be contacted by David Joseph & Co.