222 founding engineer jobs at 121 companies in San Bruno, CA
6d
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Founding Engineer
San Francisco, California, United States
$160k-$270k/yr OnsiteFull Time
3+ YOE3+ years of engineering experience, strong computer science fundamentals, Rust or Go proficiency, and production experience designing distributed systems, databases, or storage infrastructure.
Rust, Go
2w
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Founding Engineer
San Francisco, California, United States
OnsiteFull Time
Experience building systems from zero to one, making storage, compute, architecture, build-versus-buy, and maintenance trade-offs, with interest or experience in agentic systems and foundational models.
CI, agentic systems, dedicated containers, multi-agent orchestration
3mo
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Founding Software Engineer
San Francisco, California, United States
$150k-$250k/yr OnsiteFull Time
Founding software engineer with full-stack expertise; strong AWS, Docker, CUDA, TensorFlow/PyTorch; React; onsite in SF; equity.
Python, React, AWS, Docker, CUDA, Conda, TensorFlow, PyTorch, Slurm, Bash, APIs, Web apps
2mo
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Founding Engineer
San Francisco, California, United States
$120k-$160k/yr OnsiteFull Time
Strong systems programming/native app background, experience with Swift and C++, GPU programming experience preferred, proactive and high-responsibility engineer.
Swift, C++
1mo
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Founding Engineer
San Francisco or Lausanne
HybridFull Time
Experienced full-stack engineer with strong backend fundamentals, concurrency/distributed systems, AWS production deployment, Python and light frontend skills, and excellent communication.
Python, FastAPI, PostgreSQL, Supabase, Redis, AWS, Next.js, React, TypeScript, GitHub, Docker, Sentry, GitHub Actions, Claude Code
3mo
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Founding Engineer
San Francisco, California, United States
HybridFull Time
Strong full-stack engineering with deep AI/ML expertise; evals, observability, production LLMs; product-minded; healthcare familiarity; fast-paced, autonomous work.
LangSmith, Braintrust, Weights & Biases, Honeyhive
2w
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Founding Engineer
San Francisco, California, United States
$140k-$220k/yr OnsiteFull Time
Exceptional engineer with zero-to-one complex systems experience, full-stack ability, strong judgment, and expertise in reliability, data correctness, observability, and ambiguous problem-solving.
2mo
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Founding Engineer
Palo Alto or California
$140k-$200k/yr OnsiteFull Time
Experienced full-stack engineer with production experience in TypeScript/React/Next.js, backend APIs and Postgres, desktop/web (Electron or Tauri), LLM features in production, CI/CD, testing, observability, and customer-facing product work.
TypeScript, React, Next.js, Postgres, Electron, Tauri, Claude Code, Codex, CI/CD, GitHub, LLM
1w
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Founding Engineer - LLM Infra & Platform
San Francisco, California, United States
$130k-$220k/yr OnsiteFull Time
Strong software engineering fundamentals, fast learning ability, attention to detail, data orientation, and rigorous verification mindset. Experience with this exact role is not required.
LLM, AI
3mo
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Founding AI Engineer
San Francisco, California, United States
$120k-$180k/yr OnsiteFull Time
Applied CV/ML experience; 0-to-1 builder; growth mindset; strong communication.
Computer Vision, Large Language Models, Multimodal AI, Production ML
2mo
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Founding Engineer
San Francisco, California, United States
$150k-$200k/yr OnsiteFull Time
3+ YOE3+ years building and shipping consumer iOS software; strong Swift, SwiftUI, AVFoundation, and iOS expertise; end-to-end app experience; full-stack, product metrics, privacy, and 0-to-1 development experience.
iOS, Swift, SwiftUI, AVFoundation, App Store, CoreBluetooth, BLE, Core ML, Claude Code, Codex, Supabase
1w
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Founding Engineer
Burlingame, California, United States
$140k-$180k/yr OnsiteFull Time
Bachelor's or master's degree in a technical field; proficiency in TypeScript, React, Node.js, and Python; experience with LLM applications and containerized deployments; strong collaboration and problem-solving skills.
TypeScript, React, Node.js, Python, LLM, Docker, Kubernetes, Azure, GCP, AWS, FHIR, HL7
4d
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Founding Engineer
San Francisco, California, United States
OnsiteFull Time
4+ YOERequires 4+ years shipping full-stack production products, early-stage startup experience, AWS, Python, React, AI-native product experience, strong product instincts, customer focus, and U.S. citizenship.
AWS, Python, React, LLMs, AWS GovCloud, FedRAMP, SOC2, voice-to-text
1w
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Founding Engineer
San Francisco or Manila or Mexico City
$160k-$220k/yr OnsiteFull Time
Production experience with LLM-based systems, strong backend fundamentals, and Python or TypeScript experience. No years-of-experience requirement; regulated-industry experience is preferred.
WhatsApp, Viber, SMS, Python, TypeScript
2w
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Founding Engineer (AI)
San Francisco, California, United States
$150k-$220k/yr OnsiteFull Time
3+ YOERequires 3+ years of experience, LLM performance tuning, evaluations, observability, application integration, fine-tuning, evaluation dataset engineering, and proficiency with modern software technologies.
Python, TypeScript, React, Next.js, Node.js, PostgreSQL, Google Cloud, Kubernetes, Selenium, Cypress, Playwright, Together AI, Baseten
1mo
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Infinite.dev - Founding Engineer
San Francisco, California, United States
OnsiteFull Time
2+ YOE2–5+ years software engineering experience; proficiency in two of Next.js, TypeScript, C#, Go, or Python; experience with event-driven architectures, full-stack ownership, and AI-assisted development tools.
Next.js, TypeScript, C#, Go, Python, Cursor, windsurf
6d
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Founding Engineer, ML + Full-Stack
San Francisco, California, United States
OnsiteFull Time
Demonstrated shipped work and real outcomes; strong Python; ability to learn quickly, work across ML and full-stack systems, communicate with customers, and investigate problems. Degrees optional.
Python, Jupyter, TypeScript, React, Next.js, AWS, Supabase, Postgres, Electron, Rust, Vercel, GitHub, Linear, Windows, macOS
3mo
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Founding Software Engineer - Backend
San Francisco, California, United States
$125k-$300k/yr OnsiteFull Time
0+ YOEFounding backend engineer with strong engineering and design taste; ownership over architecture and engineering culture. Experience with AI-powered systems and legacy modernization is a plus.
2w
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Staff Founding Engineer
San Francisco, California, United States
$250k-$300k/yr OnsiteFull Time
Hands-on software builder with a demonstrable history of operating between H5 and H6 and experience using modern coding agents.
2w
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Founding Engineer - SF
San Francisco, California, United States
$175k-$250k/yr OnsiteFull Time
Demonstrated technical ownership, high-stakes systems judgment, product decision-making, curiosity about AI agents, fast high-quality delivery, and strong Python and TypeScript proficiency.
Python, TypeScript, React, MCP, LLM
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