Founding AI Infra Engineer — Equity
Jack & Jill
Generalcatalyst.com, a YC S25 startup backed by General Catalyst, is hiring a Founding Engineer in San Francisco. You will build core primitives for AI agents, designing high-throughput email infrastructure and APIs that bridge LLM capabilities with foundational messaging protocols. This systems-heavy role requires shipping production software, owning projects end-to-end, and thriving in a fast-paced environment as the user base scales toward hundreds of millions of emails. #J-18808-Ljbffr Jack & Jill
- ...with the web by building AI agents that can... ...technical staff to join the founding team. Someone technically... ...: Scale infra for post-training of multimodal... ...Work closely with product engineers to translate cutting‑edge... ...Competitive salary and equity ~ Visa sponsorship...Employment EquityWork at officeRelocationVisa sponsorship
- ...Co. Brain Co. is an applied AI startup co-founded by Jared Kushner and Elad Gil... ...the Role: As our Security Engineer, Infrastructure, you'll secure... ...-to-shoulder with our infra team as a true engineering partner... ...compensation and meaningful equity in a high-growth company....Employment EquityWorldwide
- Founding AI Engineer | LLM Systems | $500k+ & Equity | SF / Seattle / LA Due to regulatory constraints this role is only open to US citizens. Only a tiny %... ...real systems - not demos Startup, defence, aerospace, infra, fintech or hard‑tech background preferred High...Employment EquityRelocation
- Martin (YC S23) in San Francisco is looking for a Founding AI Engineer to enhance our AI orchestration layer and enable Martin to perform complex... ...impact on the product and company direction, supported by equity compensation. The ideal candidate has a solid background in...Employment Equity
$130k - $170k
A pioneering AI event planning startup in San Francisco is searching for a Founding AI Engineer. The ideal candidate will build and scale AI systems to automate event-planning... ...competitive salary range of $130K-$170K and equity opportunities, this role offers the chance to...Employment Equity$120k - $170k
Alldus International Consulting Ltd is hiring a Founding Engineer in San Francisco to join an AI startup in the eCommerce industry. The successful candidate... ...offers a salary range of $120k - $170k alongside equity. #J-18808-Ljbffr Alldus International Consulting LtdEmployment Equity$150k - $220k
Hyperspell is seeking a founding forward-deployed engineer in San Francisco to enhance customer success with AI agents. You will evolve the SDK, manage customer relationships... ...Compensation includes a base salary of $150-220k, equity, and a budget for your ideal work setup,...Employment Equity- Mason AI is looking for a Founding AI/ML Engineer to expand solutions from California residential projects nationwide. This role emphasizes designing experiments... ...AI solutions. Benefits include competitive salary, equity, and comprehensive health insurance. #J-18808-Ljbffr...Employment EquityImmediate start
- A leading AI motion design company is seeking a Founding AI Engineer in San Francisco to build and optimize animation-generating AI systems. This role involves developing... .... This opportunity offers life-changing equity, an above-market salary, and a chance to redefine video...Employment EquityWork at office
- David Joseph & Company is seeking a Founding Engineer to join their AI startup in San Francisco. This role involves building micro apps while collaborating directly with the founding team, focusing on AI-driven products. Candidates should have 1-5 years of software engineering...Employment EquityRelocation package
- Jack & Jill in San Francisco is seeking a founding engineer to build the simulation and evaluation infrastructure powering frontier AI agents. You will design containerized sandboxes... ...of LLM-based agent self-improvement, with equity and a fast-paced founding team. #J-18808-...Employment Equity
$150k
...Solutions in San Francisco is seeking skilled engineers across various tracks, including founding, forward-deployed, AI/ML core, and full-stack product engineers. The... ...Compensation ranges from $150K to $450K base, plus equity, depending on the client and role level....Employment EquityRemote work$190k - $250k
An innovative AI-native startup in San Francisco seeks a Founding Engineer to build AI-native products from scratch. This role requires 5-6+ years of experience... ...architecture and culture. Competitive salary of $190K-$250K with equity options is offered. #J-18808-Ljbffr ArcadiaEmployment Equity$180k - $250k
Kastle (YC S24) in San Francisco is seeking a Founding Applied AI Engineer to develop the technical foundation of their AI platform. This role involves... ...a competitive salary range of $180K - $250K along with equity and relocation support. #J-18808-Ljbffr Kastle (YC S24)Employment EquityRelocation package$120k - $180k
Flowtel is seeking a Founding Engineer - Staff/Senior to join its innovative team in San Francisco... ...shape the future of hospitality through AI technology, with a compensation range for... ...engineers between $120K and $180K plus equity. Ideal candidates will have strong AI coding...Employment Equity- Gravity Engineering Services Pvt Ltd. is looking for a founding engineer to join its mission-driven team in San Francisco. This role involves building core systems for AI agents that will automate software quality assurance and improve productivity across teams. The ideal...Employment Equity
$150k - $220k
Optimized deploys AI agents into the operations that run the physical economy: the... ...production is the hardest part, and we need a founding engineer to own it. As a Founding AI Engineer,... ...for this role is $150,000 - $220,000 + equity. What you'll do Architect the agent...Employment Equity$180k - $280k
Salary: USD180000 - USD280000 per annum + Equity + Benefits + PTO $180,000 - $280,000 + 1... ...San Francisco, CA - On-site Are you an AI Engineer with a deep focus on agentic systems,... ...has hit Series A metrics within months of founding. The team is building an agentic AI platform...Employment EquityRelocationFlexible hours- ...real-life JARVIS — a personal AI that can do everything a human... ...extremely fast. Come join our founding team in San Francisco as one... ...will be reflected in significant equity compensation. We are building... ...hear from you! Founding AI Engineer We are looking for a founding...Employment EquityRelocation
$160k - $300k
...based in San Francisco, is looking for a Founding Engineer to lead the development of their cutting... ...and optimize the performance of AI agents. Ideal candidates will have strong... ...from $160,000 to $300,000 including cash, equity, and bonus. #J-18808-Ljbffr Lance , Inc.Employment EquityFull time$120k - $200k
Overview Mason AI has cracked a research problem that went unsolved for over half... ...in America. Role We’re looking for a Founding AI/ML Engineer to help us scale solutions from residential... ...($120k-$200k). Generous early‑stage equity (0.5%-2%). Free lunch and dinner (...Employment EquityFull timeWork at officeFlexible hoursWeekend work$180k - $250k
We’re hiring a Founding AI Systems Engineer to build the intelligence layer for the leading AI companion for language learning. You’ll own the core... ...In‑person in SF w/ founders $180k‑250k cash comp + 0.5‑1.5% equity Healthcare + meals + Equinox #J-18808-Ljbffr Pingo AIEmployment Equity- Arcadia is seeking three Founding Software Engineers in San Francisco to build and scale infrastructure for autonomous AI agents in the hospitality sector. This role is ideal for... ...high-intensity work culture with significant equity and ownership. #J-18808-Ljbffr ArcadiaEmployment Equity
- ...) in San Francisco is hiring its founding Members of Technical Staff to develop AI agents crucial for processing complex... ...ideal candidate will have solid engineering experience with a focus on full-... ...for growth and meaningful equity. #J-18808-Ljbffr Justinian (YC S...Employment EquityWork at office
$150k - $250k
...Hyperspell is the Memory & Context Layer for AI Agents. AI agents are clueless geniuses... ...together. About the Role As our founding ML engineer, your mission is to advance what’s possible... ...$150-250k base salary. 0.5-1.5% equity. $10,000 to build your dream work setup...Employment Equity- Kastle (YC S24) is looking for a Founding Applied AI Engineer in San Francisco to integrate cutting-edge AI technologies into their platform. You... ...learning frameworks. This role offers competitive salary and equity, amidst a high-ownership environment. #J-18808-Ljbffr...Employment Equity
$130k - $170k
Founding AI Engineer Join to apply for the Founding AI Engineer role at Nowadays (YC S23) Base pay range: $130,000.00/yr - $170,000.00/yr The... ...Must be based in San Francisco $130K-$170K 0.5% - 2% equity All Of Our Employees Get Free lunch and dinner Quarterly...Employment Equity$120k - $200k
...scaling top start‑up teams $120,000 - $200,000 + 0.5‑2% Equity + Flexible PTO Are you an AI engineer who wants to build and own the core agentic systems... ..., whilst benefiting from full autonomy and founding‑level equity? This is a rare opportunity to join a YC...Employment EquityFull timeImmediate startFlexible hours- Founding AI Engineer at Hera (YC S25) We're building the world's first AI motion designer that creates professional animations in seconds. About... ...people. As a founding engineer, you'll have: Life‑changing equity stake Above‑market salary Build a product used by...Employment EquityWork at officeRelocation
- Traba is seeking an experienced Senior Applied Agent Engineer in San Francisco to join their founding team. You will build an agentic platform that enhances supply chain operations, focusing on data synthesis and customer integration. The ideal candidate possesses 5+ years...Employment Equity
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