10 founding software engineer jobs at 7 companies in Orange, CA

PromotedHiringCafe
Founding Full-stack / Product Engineer
Cupertino, CA, US
$130k-$300k/yr On-SiteFull Time
HiringCafe
HiringCafe: Building a 100× better job search engine to take on Indeed and LinkedIn.
Help us build a 100× better job search engine. We need a full-stack engineer with great taste, sharp fundamentals, and a track record of shipping polished product on React/Next.js plus a real backend (Firebase, Elasticsearch, Redis, Stripe).
React, Next.js, TypeScript, Firebase, Elasticsearch, Redis, Stripe
3d
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Founding Engineer
San Francisco or Los Angeles or New York City
$90k-$140k/yr HybridFull Time
Clera
Clera: AI talent agent matching professionals with high-growth startup roles
3+ YOE3–7 years software engineering experience; strong TypeScript, React, Next.js, Node.js, PostgreSQL; experience shipping production-quality full‑stack features, infra/DevOps fundamentals, and working in early-stage startups.
Next.js, PostgreSQL, TypeScript, React, Node.js, Supabase
2mo
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Founding Engineer (Full-Stack)
Los Angeles or Santa Monica
HybridFull Time
UP.Labs
UP.Labs: Builds and scales mobility-focused startups with corporate partners.
6+ YOE6+ years software engineering; proven full-stack delivery; AI-driven development; comfortable in ambiguity
3w
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Founding Lead Avionics & Software Engineer
Los Angeles, California, United States
$185k-$275k/yr HybridFull Time
Pillar Space
Pillar Space: Building high-stakes, flight-grade autonomous space hardware systems.
8+ YOEBachelor's in EE/CE/CS/Aerospace, 8+ years designing and qualifying avionics/embedded/flight software, leadership experience, proficiency in embedded C/C++ (Rust a plus), RTOS experience, hardware bring-up and lab test skills.
C, C++, Rust, FreeRTOS, VxWorks, RTEMS, VHDL, Verilog, Xilinx Zynq, CCSDS, SpaceWire, MIL-STD-1553, CAN, EGSE
13h
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Founding Engineer
San Francisco or Los Angeles or New York City
OnsiteFull Time
Clera
Clera: AI talent agent matching professionals with high-growth startup roles
Proven full-stack or backend engineering experience, strong software design and system architecture fundamentals, ability to operate in ambiguous startup environments, excellent communication, must be authorized to work in the US without sponsorship.
1mo
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Applied AI Engineer, Founding Team
New York City or Milwaukee or Dallas or Columbus or Kirkland or Cincinnati or Cleveland or Oklahoma City or Austin or Albany or Chicago or St. Petersburg or Hartford or Pittsburgh or St. Louis or Miami or Sacramento or Raleigh or Minneapolis or Mountain View or Scottsdale or San Francisco or Morristown or Denver or Boston or Philadelphia or Des Moines or Overland Park or Los Angeles or Charlotte or Walnut Creek or Carmel or Seattle or Houston or Arlington or Atlanta or Redmond or Bentonville or Beaverton or Nashville or Detroit or San Diego
$63k-$219k/yr OnsiteFull Time
Accenture
AccentureNYSE: ACN: Global provider of management consulting and technology services.
5+ YOE5+ years in software engineering/AI/enterprise tech; 1+ year building hybrid retrieval systems and agentic AI (Claude/Anthropic); experience with MCP servers; ability to translate AI concepts; Bachelor's degree or equivalent.
Anthropic, Claude, Model Context Protocol (MCP), Oracle 23ai, Oracle, Oracle Cloud Infrastructure (OCI), EPM, ERP
1mo
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Founding Product Engineer
San Francisco or Los Angeles or New York City
$190k-$210k/yr HybridFull Time
Clera
Clera: AI talent agent matching professionals with high-growth startup roles
Proficiency with TypeScript (React) and Go, experience with PostgreSQL and Redis, familiarity with AWS, Terraform, and Docker, API development experience, and prior B2C product experience.
TypeScript, React, Go, PostgreSQL, Redis, AWS, Terraform, Docker, REST, GraphQL, Slack, Linear, GitHub, Figma
1d
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Founding Full Stack Engineer, AI Incubation
Los Angeles, California, United States
$300k-$325k/yr HybridFull Time
Match Group
Match GroupNasdaq: MTCH: Provider of a global portfolio of online dating services.
Staff/Principal-level hands-on engineer to build end-to-end frontend, backend, AI systems, and infrastructure; strong product judgment, reliability, privacy, and scalability focus.
1d
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Founding Full Stack Engineer, AI Incubation
Los Angeles, California, United States
$300k-$325k/yr HybridFull Time
Match Group
Match GroupNASDAQ: MTCH: Operates a portfolio of global online dating applications.
8+ YOE8+ years engineering experience; staff/principal-level ownership; deep full-stack range; experience with mobile (React Native, Swift, Kotlin, Flutter); AI-powered product experience; strong reliability, privacy, and product judgment.
React Native, Swift, Kotlin, Flutter
3mo
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Founding Head of Engineering
Los Angeles, California, United States
$225k-$300k/yr HybridFull Time
Inhouse
Inhouse: AI-powered legal platform for small and midsize businesses.
10+ YOE5+ Mgmt10+ years software engineering; 5+ years technical leadership; experience hiring; production AI systems; Python proficiency.
Python, Claude Code, Cursor, Codex
1w
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Product & Technical Co-founder (CPTO) - AI Compliance Platform
United States or Los Angeles
RemoteFull Time
FutureSight
FutureSight: -founds and invests in vertical AI business software startups.
Founding technical leader with production LLM/AI experience, full-stack applied ML/LLM expertise, secure multi-tenant SaaS and SOC 2 readiness, engineering leadership, and ability to ship audit-ready, highly reliable systems.
LLM, RAG, foundation models, SOC 2