2,917 Founding Engineer jobs
Founding engineer roles building the first product at early-stage startups.
Senior/Staff Software Engineer, Artists & Creators
Senior/Staff engineer taking end-to-end ownership of the Songkick live music and ticketing product within Suno's Artists & Creators pod — spanning backend, React Native mobile apps, data pipelines, and APIs.
Software Engineer (Senior, Staff) - Remote
Work directly with the CEO to own end-to-end feature development for Replika's AI companion product, shipping to tens of millions of users. Focus on applied AI in a consumer setting with a fast-paced, startup environment.
Senior Flight Software Engineer
Develop satellite flight software and software-in-the-loop tests for spacecraft subsystems (attitude, power, thermal, navigation) using C, C++, Python, and embedded Linux on a small satellite team.
Senior Software Engineer (AI Inference & Runtime Platform)
Senior engineer owning the AI inference and runtime platform layer—serving open-weight LLMs on Kubernetes, building a microVM-based agent sandbox, and writing Rust/Python services for model lifecycle, autoscaling, and isolation.
Member of Technical Staff, Post-Training & Applied Research
Own the end-to-end post-training pipeline—SFT, RL, DPO, evals, distillation, and deployment—on top of SF Tensor's custom GPU compiler and Model Foundry infrastructure, working primarily with PyTorch or JAX.
Member of Technical Staff, AI-Driven Compilation
Design and implement RL and agentic systems that search over massive program spaces to optimize GPU kernels for a high-performance compute compiler, using PyTorch/JAX, LLM agents, and real-hardware reward signals.
Member of Technical Staff, Product Engineering
Own and build the Model Foundry product surface end-to-end for a high-performance AI compute startup — designing polished NextJS web interfaces, APIs, and backend services that let researchers manage GPU training runs, stream logs, and compare experiments across multiple cloud providers and chip vendors.
Member of Technical Staff, GPU Kernels
Hand-write and optimize GPU kernels across NVIDIA, AMD, TPU, and Trainium for pre-training, inference, and post-training workloads, then encode those optimizations into searchable compiler structures using C++, CUDA, and ISA-level tooling.
Member of Technical Staff, GPU Compiler
Build and extend a search-based GPU compiler (MLIR, LLVM backend) that automatically optimizes AI training/inference kernels across NVIDIA, AMD, TPU, and Trainium targets, working the full pipeline from StableHLO ingestion to direct cubin emission.
Member of Technical Staff, Sandbox Infrastructure
Build and scale a serverless GPU container sandbox infrastructure across NVIDIA, AMD, TPU and Trainium for an AI compute startup's compiler and model training workloads, using Go/C++/Rust, gVisor, and low-level Linux systems engineering.
Software Engineer
Design, build, and iterate on AI agents and automation workflows that replace manual healthcare processes (phone calls, insurance verification, scheduling) for large dental enterprises.
Founding Software Engineer (Product / MCP)
Founding engineer owning the Manufact MCP Cloud platform end-to-end — a product and engineering hybrid role building the deploy flow, dashboard, inspector, and docs surface on top of MCP (Model Context Protocol).
Software Engineer, Ontology
Platform engineer building internal infrastructure tooling—CMDB, asset management, DCIM, monitoring, and automation—using Python/Go, PostgreSQL, Redis, Docker, and Terraform at a cloud compute provider.
Software Engineer (Japanese JD)
Software engineer at Infostellar building StellarStation, a GSaaS cloud platform that virtualizes ground station networks for satellites. Day to day: Go-based backend services, MQTT data paths between ground hardware and AWS, Kubernetes/serverless infrastructure, service UIs, plus optional RF/satellite work (GNU Radio, SDR).
Senior Software Engineer, Search
Senior Software Engineer owning search and information retrieval for a defense AI platform, focusing on full-text search, vector databases, LLMs, NLP, and relevance algorithms.
Senior Software Engineer
Senior Software Engineer designing, building, and maintaining scalable backend services (TypeScript/Node.js) with PostgreSQL, microservices, and cloud infrastructure (AWS/Kubernetes) for a clinical metagenomics diagnostics company.
Senior Software Engineer
Designs and scales AI-driven backend systems for real-time social media analytics, focusing on agentic workflows, LLM pipelines, and cloud infrastructure to deliver actionable insights.
Desarrollador Python Developer
The Python Developer will be responsible for developing and maintaining internal systems and new tools for a financial startup. The role requires on-site work in Mexico City and proficiency in Python, Django, JavaScript, and MySQL.
Sr. Software Engineer, Takeoff
Senior engineer building core accounting systems that categorize transactions, recognize revenue, and ensure accurate financials for Pilot’s bookkeeping customers using Python, Vue.js, and AWS.
Founding Engineer @ Corgi x Trucking
Builds core insurance systems for trucking policies, including quote-to-bind workflows, AI-driven underwriting, telematics integrations, and data pipelines. Focuses on reliability, scalability, and end-to-end ownership in an AI-native insurance startup.