16,821 Startups jobs
Open tech roles at startups.
AI software engineer
AI software engineer at GF-ACCORD AI, a Geneva startup building IFTS, a proprietary AI system for strategic and financial analysis that runs without third-party LLM APIs. You'll develop NLP and financial-calculation AI in Python, PHP and JS with PyTorch/TensorFlow on an agile team. Up to 5 positions; compensation is equity (1–2%).
Fractional Program Manager — Product Testing & Delivery
Fractional (~10 hrs/week) contractor program manager at NuVee, maker of Koa, a patient-facing AI for obesity/GLP-1 care. Day to day: test patient-facing web/mobile workflows, file and verify actionable bugs, and keep release-readiness and priorities visible across engineering and clinician-led clinical review.
Product Manager (AI Agents)
Contract, project-based Product Manager at Agentplace, a San Francisco platform for building customer-facing AI agents. You'll talk to users, find friction in activation and retention funnels, write short specs, and ship improvements with the founder using analytics tools like Amplitude, PostHog, or SQL.
Solutions Engineer - Technical Customer Onboarding
Dinari, a startup building regulated securities-backed token infrastructure, is hiring a Solutions Engineer to partner with strategic customers: advising on architecture, writing prototypes and integrations (APIs, smart contracts), and guiding compliant onboarding. Core stack: Python or Java, blockchain/smart contracts, distributed systems.
Full Stack - Software Developer for on-demand / ride hailing technology company
VAMOS is hiring a founding full-stack developer/CTO to own and build its AI-powered taxi/ride-hailing platform and driver/rider mobile apps end to end — scalable backend on AWS, front end in React/React Native, plus AI/ML for pricing, dispatching, ETA and routing. Equity-heavy role (1–15%) with salary deferred until funding/revenue.
Agentic AI Engineer (Founding-Team Interest, Equity Only)
Equity-only (0.6%) founding-team interest role building the runtime for Julius, a compound AI agent that plans, dispatches, executes, recovers and reviews long multi-step missions on real codebases. Core work: multi-agent orchestration, durable execution, tool calling, LLM orchestration and testing non-deterministic systems.
Director of Backend Engineering
Hands-on Director of Backend Engineering at music-tech startup Albumolic: personally writes, deploys, and maintains production backend code (REST/GraphQL APIs, databases) while owning AWS architecture, scalability, security, CI/CD, and cloud cost optimization. Reports to the Head of Engineering as part of the founding engineering team.
Senior Android Developer
Senior Android Developer to build and own the IcyBox Android app (React Native plus Rust) for a NYC watch/mystery-box ecommerce brand: shipping features, owning performance and crash rate, integrating payments and push notifications, and managing Google Play releases. In-person at the NYC office five days a week.
Co-Founder & Chief Technology Officer (CTO)
Hands-on technical cofounder/CTO to architect and build Kinoflix's streaming platform end to end — full-stack apps for web, mobile, and TV, video hosting/CDN infrastructure, payments, and AI-powered discovery — using AI coding tools. Initially equity-only (20–35%), with salary only if future funding allows.
Founding Engineer, Mobile and Backend (CTO Track)
First engineer at Misaq, an early-stage Muslim marriage (dating) app, on a CTO track. Owns the product end to end: a React Native iOS/Android app plus backend (database, auth, APIs, storage, security rules), privacy-first features, LLM integrations, subscriptions and release pipelines, working directly with founders. Fully remote with daily overlap with the Pakistan team.
Mid-Level Full Stack Engineer
Mid-level full-stack engineer at Amber Electric, a renewable energy tech company/utility, building systems that automate home batteries, EVs and solar to shift energy use to cheap renewables. TypeScript end-to-end: React Native/React frontends, serverless AWS Lambda backend, Apollo GraphQL, DynamoDB/Postgres/Snowflake.
Platform Security Engineer
Senior Platform Security Engineer who owns security and compliance for Luxor's platform: building automated security testing in CI/CD (SAST/DAST/SCA), cloud detection and response, Zero Trust networking, device management, and supporting SOC 2/ISO 27001 audits. Fully remote US role; stack includes Go/Python/Rust, Terraform, Ansible, and Kubernetes GitOps.
Full-Stack Developer Intern – React / Next.js | UNPAID
Unpaid full-stack developer internship at Treesy, a Copenhagen sustainability venture whose platform connects people and businesses with tree planting. You'll build features on the live React/Next.js site — funnels, climate calculators, dashboards, certificates, SEO — using TypeScript, Supabase, Stripe, Vercel, and GitHub.
UI UX
Paid UI/UX engineering internship at MiPrep AI, whose platform offers an AI interview copilot with personalized mock interview prep built from a candidate's resume and target job. The intern designs responsive web/mobile interfaces in Figma, runs user research, and builds wireframes, prototypes and design-system components.
Senior Cloud Platform Engineer (DevOps & Integrations)
Owns the AWS cloud platform for Toi Labs' TrueLoo smart-toilet health monitor: building Python backend services and device data pipelines, running CI/CD, observability, and on-call, and integrating with customer EHR/care platforms. Fully remote in the US; requires deep AWS, Python, PostgreSQL, and DevOps experience.
DevOps Engineer
Paid DevOps internship at MiPrep AI, whose platform offers an AI interview copilot with personalized interview prep and mock interviews. You'd deploy and maintain apps on cloud platforms (AWS/Azure/GCP), build CI/CD pipelines, and work with Docker, Kubernetes, GitHub Actions and IaC while monitoring reliability and performance.
DevOps Intern | 3,500 Per Month INR
Remote DevOps internship with a small 10-developer Indian team: you'd own CI/CD (GitHub Actions), AWS infrastructure (EC2, ECS, S3, RDS, CloudWatch), and deployment automation for 5 production apps, occasionally debugging small React Native/Node.js code. Title lists a ₹3,500/month stipend, though the posting also calls it a 3-month unpaid internship.