Founding backend jobs in United States

We're building a stealth AI infrastructure platform at the intersection of applied artificial intelligence and blockchain. · This is an early-stage, equity-based opportunity with meaningful ownership and technical influence. ...

We are building the “First Stop of Health” for India. · We move fast, ship code, and are looking for someone who wants to get their hands dirty building the nervous system of a product that actually saves lives.Building the Brain (OpenCura): fine-tuning models to act as an eviden ...

We're hiring a Founding Platform / Backend Engineer to bring MeshOS from prototype to mission-critical infrastructure for hardware teams. · A hardened multi-tenant backend foundation (tenant scoping end-to-end + audit logs + clear authZ model). · A reliable workflow engine (queue ...

We're hiring a Founding Platform / Backend Engineer to bring MeshOS from prototype to mission-critical infrastructure for hardware teams.You'll own end-to-end platform engineering — cloud, identity, multi-tenancy, security, orchestration — and the runner infrastructure that execu ...

+Job summary · We're hiring a zero-to-one backend engineer who's equal parts architect, builder, and AI systems thinker — someone who can design elegant infrastructure, ...

We're hiring a zero-to-one backend engineer who's equal parts architect, builder, and AI systems thinker — someone who can design elegant infrastructure, · lead development on the core backend infrastructure that powers: · Multi-agent orchestration (user agents, client agents, ta ...

We're hiring a zero-to-one backend engineer who's equal parts architect, · builder and AI systems thinker — someone who can design elegant infrastructure, · ship real-time product features and push the boundaries of agentic intelligence. · ...

We are hiring a Backend & AI Engineer to help build the core intelligence and infrastructure behind Alpheva AI. · We are looking for someone with strong backend experience in Go and Python who can design, build, and scale backend systems. The ideal candidate will have hands-on ex ...

We're hiring a zero-to-one backend engineer who's equal parts architect, builder, and AI systems thinker — someone who can design elegant infrastructure, ship real-time product features, and push the boundaries of agentic intelligence. · Multitasking (user agents) · ...

We're hiring a Founding Platform / Backend Engineer to bring MeshOS from prototype to mission-critical infrastructure for hardware teams. · Owning end-to-end platform engineering — cloud, identity, multi-tenancy, security, orchestration — and the runner infrastructure that execut ...

About us · Candle AI is a fast-growing legal-tech startup based in Austin, TX. We provide Email Context Intelligence that helps legal teams respond faster, stay consistent and capture more billable time. · Backed by tier 1 investors including The Legal Tech Fund (TLTF), we're bui ...

Job summary · We are building a transformative AI-powered platform that leverages cutting-edge image recognition and generative AI to solve complex, real-world problems. As a pre-seed startup with ambitious goals, we are assembling a world-class founding team to bring our vision ...

We are revolutionizing ownership by providing real-time market valuation for personal possessions and offering seamless selling across platforms. We empower individuals to unlock their belongings' value worldwide. · Design, build, and maintain a scalable backend architecture usin ...

This is a chance to staple your name onto a product and company that is almost certain to have a strong ROI.The team's mission is to redefine what high-performance living looks like in an AI-native world... · ...

The company is an early-stage AI infrastructure startup building the foundation for how complex documents are transformed into structured data. They are hiring a Founding Software Engineer to join their team in San Francisco. · ...

A company is building an AI-driven lifestyle operating system designed for high performers to maximize performance. They are looking for a Founding Backend Engineer to join at this crucial stage. · ...

+We are building a transformative AI-powered platform that leverages cutting-edge image recognition and generative AI to solve complex, real-world problems. · +3+ years of professional experience in backend software development. · Demonstrated expertise in TypeScript for producti ...

We're hiring a Backend / Platform Engineer to play a core role in building the backend infrastructure and shipping quickly. You'll build the systems powering a commerce-enabled AI money companion in Ruby on Rails, integrating financial APIs and AI models that make the experience ...

+Job summaryWe are an early-stage startup looking for a heavy-lifter to own our entire backend infrastructure. · +Take full ownership of the backend architecture · Select the right tech stack for the job (Node, Python, Go) · ...

This is an exclusive role with a Revenue Generating PreSeed firm in New York with $4M in funding within a $5T premium lifestyle market. · The team's mission is to redefine what high-performance living looks like in an AI-native world, blending intelligence, personalization, and e ...