Founding Software Engineer
$150k - $300kPassFort
About Unsiloed AI Unsiloed AI is the unstructured data interface for LLMs and AI agents. We build vision-first, layout-aware systems that use computer vision, OCR, and multimodal models to turn complex documents into deterministic, machine-readable representations so that AI agents can read and write to documents as reliably as humans. About the role We are hiring a Founding Software Engineer in San Francisco. We are building a small, talent-dense team. This role will define the engineering archetype at Unsiloed AI and set the ceiling for the team. We strongly believe technical DNA compounds (or degrades) with every hire and hence the first few matter disproportionately. You will be expected to operate proactively, take full ownership, and independently drive systems from idea to production. What you Will Do As a Founding Software Engineer, you will own the entire technical stack end-to-end, from core infrastructure and production systems to deployment, reliability, and developer experience. Architect, build, and scale core backend systems powering document intelligence and VLM-based workflows Own production infrastructure end-to-end: deployments, monitoring, performance, reliability Design and operate high-throughput, low-latency services in real production environments Take systems from R&D → production → enterprise scale Build and maintain cloud and on-prem deployments (Docker, Kubernetes, Helm) for enterprise customers Establish best practices for CI/CD, observability, debugging, and incident response Work closely with the founders and research team to turn research prototypes into production-grade, scalable systems. What We are Looking For This role is backend & infrastructure-heavy. You should have most of the following: Experience building and operating scaled production systems Strong backend engineering skills (Python required; C++/Rust is a major plus) Experience with distributed systems (microservices, parallel processing, queues, caches like Redis) Deep familiarity with cloud infrastructure (AWS, GCP, Azure) Hands‑on experience with Docker, Kubernetes, Helm, and infrastructure-as-code (Terraform / Pulumi) An ownership mindset Nice to have: Experience serving ML / VLM / GPU-heavy workloads Compensation $150k – $300k Equity 0.1% – 1% Location In-person, San Francisco Visa Open to sponsoring Hiring process We don’t believe interviews alone can assess fit on either side. Our process centers around paid work trials, which can be done remotely. You will work with us on real problems, collaborate as peers, and get a genuine sense of what building Unsiloed AI feels like. For any questions, email hiring [at] unsiloed [dot] ai #J-18808-Ljbffr
$175k - $195k
...closed our seed round in November 2025 and our first commercial deployment launches in August. The Role We are hiring a Founding Software Engineer to own the software platform that turns our foundation model and IoT hardware into a usable product. As an early addition...SuggestedPermanent employmentFull timeTemporary workWork at officeImmediate start$130k - $200k
...About the Role A well-funded, seed-stage B2B SaaS startup in the supply chain integrations space is looking for a Founding Software Engineer to help shape the architecture, culture, and product direction of an agentic integrations platform. This is a high-ownership role...SuggestedWork at officeVisa sponsorship- ...Founding Software Engineer Location: San Francisco (preferred) Type: Full-time · Founding Team About Bracket Bot Bracket Bot is building low-cost, general-purpose robots that developers can program and deploy in days. We’re transforming the world’s ~50 million software...SuggestedFull time
$160k - $210k
...Everything is handled — launch support, insurance, marketing, and software — so therapists can focus on what they do best: helping kids... ...in the right place. Role Overview The company is hiring a Founding Engineer (Full‑Stack) to work in‑person, 5 days/week, in San...SuggestedPrivate practiceWork at officeVisa sponsorshipRelocation package- ...support an ever-expanding range of physical work. Founded in San Francisco, Kovari is obsessed with rapid iteration, engineering rigor, and deploying real machines into real... ...About This Role We're looking for a founding software engineer to help build the software...SuggestedRemote work
- ...the beginning. You have the opportunity to: Join Onton as a Founding Engineer and set the foundation for our Engineering Team Design, scope... ...heart who shares our values and is passionate about making software tools accessible to all, we want to hear from you. Onton is...Full timeWork at officeLocal areaRemote workRelocation3 days per week
$140k - $200k
...STARTmunich e.V is seeking a Founding Software Engineer in San Francisco. You will own major product features, work directly with customers, and help define both the product and company culture. This is a full-time, in-office role. A base salary of $140k-$200k is offered...Full timeWork at office$160k - $210k
...We're building an AI-native platform to fix that, and 80+ practices are already running on it. THE ROLE This is a true founding-engineer seat. You'll work directly with therapists, ship real features that land in production, and own problems end-to-end - from the...Relocation package€80k - €160k per year
...About the Role A Y Combinator-backed AI creative tools startup is hiring its founding software engineer . You'll work directly with the founding team to shape the technical foundation of an AI-powered motion design platform - turning what once took hours into minutes...Full timeWork at officeWorldwideVisa sponsorship- ...Founding Software Engineer Opportunity Attune is building developer tools for a post-AI world. Our first product is faster build tools that require zero migration effort. AI is enabling engineers to write code faster than ever. The next bottleneck will be all the other...Full time
- ...Founding Software Engineer As a Founding Software Engineer, you'll have end-to-end ownership over projects pushing the frontier of AI evaluation. This isn't a narrow role. One week you might prototype a new RL environment from a research paper, the next you'll deploy...Work at officeVisa sponsorship
- ...The role Watershed is scaling a world‑class engineering team and is establishing a new office in Mexico City. We are looking for a Founding Engineering Technical Lead to bootstrap a team and set the culture for the entire office. The Tech Lead will guide the team’s technical...Work at office
$160k - $300k
...technology, Lance agents integrate seamlessly with existing hotel software to make real-time decisions and efficiently manage complex... .... Role Description This is a full-time on-site role for a Founding Engineer based in San Francisco, CA. The Founding Engineer will be...Full time- ...Navi Engineering Role Navi captures everything a pilot sees and hears and turns it into... ...happen. About the Role This is a founding engineering role. You'll own entire systems... ...About You ~5+ years of professional software engineering experience, with a track...Live in
- ...in production. Our founder Obaid Khan co-founded Motive — scaled it to $350M+ in revenue... ...problem. You'll work on all three. Set the engineering bar. Early team decisions compound —... ...Looking For 5+ years shipping production software, with meaningful full-stack range (you've...
$150k - $200k
...semiconductor leaders producing new chips and researchers pioneering the adoption of AI for chip design. About the role As a founding software engineer at Bronco AI, you will be building world-class intelligent reasoning systems for chip verification. You'll own the...Night shift$150k - $225k
...Founding Software Engineer (Full Stack) Our client is a high-growth technology startup backed by top-tier investors. The company is building next-generation AI solutions to transform complex hiring and operational workflows in enterprise environments. With ambitious...RelocationVisa sponsorship$250k - $300k
...Founding Software Engineer Title of Role: Founding Software Engineer Location: Los Angeles, CA, Onsite Company Stage of Funding: Seed — AI, Software Development Office Type: Onsite Salary: $250K–$300K Company Description We're representing a dynamic...Work at office$120k - $200k
...Founding Software Engineer Redcar is on a mission to make every professional superhuman. And today, we make world's most trusted AI Sales Agents. We're rapidly scaling AI Agents trusted by humans and the data environments where they work, and we're looking for an amazing...$175k - $250k
...Founding Software Engineer About Scorecard Scorecard is building the leading evaluation and development platform for AI agents. Our mission is to empower cross-functional teams to ship AI products they can trust from prototype to production. We enable industry-leading...Work at officeDay shift- ...pioneering aviation technology company in San Francisco seeks a founding engineer to build and scale their innovative AI platform for aviation... ...and military operators. Applicants should have significant software engineering experience, particularly in cloud infrastructure...
- A leading tech recruiting firm in San Francisco is seeking a Founding Software Engineer for an early-stage AI & LLM startup. You will contribute to innovative technology development using Python and web frameworks like Django. The ideal candidate should have over 3 years...
$175k - $250k
Kindredventures is seeking a Founding Software Engineer in San Francisco to help build cutting-edge AI tools. You'll define core architecture and work directly with customers to deliver exceptional user experiences. The role requires proficiency in TypeScript, React, and...- ...Founding Senior Software Engineer (SF In-Person Preferred) About Hyperscale Hyperscale is building the AI-native intelligence layer for physical operations, starting with trucking carriers. We are a team of ex-Samsara engineers and fleet operators automating the...
- ...Founding Software Engineer (Mid–Senior Level) Every enterprise spends millions of dollars on Governance, Risk, and Compliance (GRC). It's one of the most critical, yet universally painful, parts of running a business. For decades, this industry has been dominated by...Work at officeRelocation packageFlexible hours
- ...many fronts and it's time to go faster. Role Description As a founding engineer, you won’t just write code — you’ll help shape product,... ...technical stack, direction, and vision. This is a full-time Software Engineering role. The current team is in San Francisco, and...Full time
$140k - $200k
Founding Software Engineer #1 San Francisco | Engineering | In office | Full-time Why Dalus Exists At Dalus, we’re building AI-powered software to reimagine how complex hardware systems are designed — think rockets, satellites, EVs, aircraft, nuclear plants. Right now...Full timeWork at officeWeekend work- Voiceflow in San Francisco is looking for a Senior Software Engineer to join our ambitious team. As a founding engineer, you will work on distributed systems and have a significant impact on our product development by interacting directly with customers. This challenging...Work at office
- ...and builders of everything from robots and race cars to software with millions of downloads . We’re backed by the founders... ...a century. Dryft is powering the next. THE ROLE As Founding Fullstack Engineer , you’ll be the brain behind Dryft’s decision...Relocation
- We are looking for a founding backend engineer with unusually strong engineering and design taste. The world’s most critical infrastructure—banking... ...systems, applied to some of the most critical enterprise software in the world. Learn why we’re excited about mainframe...H1bVisa sponsorshipWork visaRelocation package
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