2,917 Founding Engineer jobs
Founding engineer roles building the first product at early-stage startups.
Software Engineer C++
On-site C++ engineer (2-5 yrs) at a Budapest computational imaging startup building a platform that recovers optical scene properties from consumer-camera images. You'll develop modern C++ pipelines feeding ML models, software controlling camera/lighting hardware, and cloud integrations.
Senior Software Engineer — Base Protection
Kela is a defense-tech startup building real-time command & control systems that detect aerial drone threats and automate countermeasures. This senior backend role owns the C2 architecture and sensor-fusion pipelines, integrates hardware like radars and counter-drone systems, and hardens deployments across on-prem, edge, and cloud, using Rust, Python, C++, or Go.
Senior Software Engineer
Oligo is seeking a Senior Software Engineer to design and implement scalable backend services for their runtime cybersecurity platform. The role involves working with cloud technologies, databases, and AI tools to solve complex technical challenges in a high-scale environment.
Senior Software Engineer
Senior software engineer at Matelify, an early-stage startup in Rödental, Germany building an AI-agent platform for social media management. You ship features end-to-end and develop five collaborating AI agents (tools, prompts, orchestration, evaluation) on TypeScript/React, Go microservices on AWS, MongoDB, and Terraform.
Intern, Software Engineering
A 12-week software engineering internship at Profluent, an AI-for-biology lab, building tools, user interfaces, APIs, and data systems that help scientists explore AI-designed proteins and visualize experimental results. The intern works in Python alongside scientists and ML researchers in a hybrid setup at the Emeryville, CA headquarters.
.NET Developer
London-based .NET Developer building a desktop application with .NET 10, C# 14, WPF, Azure SQL, MVVM/Prism and TDD for a photo/video sharing platform whose community has grown to 150 million users in three years; a newly opened London R&D centre is hiring at all levels.
Software Development Engineer II - C++
C++ developer (SDE II) at a Bengaluru/Delhi defence-tech startup building unmanned aerial platforms and robotic swarms. Day to day: design, build and maintain efficient C++ code for desktop, Android and embedded applications using Qt and STL, with focus on performance, memory management, threading, testing and code quality.
Software Engineer (AI Agents)
Build production-grade AI agents for enterprise planning, designing scalable systems that reason about high-stakes decisions using Python and MongoDB.
Software Developer Intern
Internship at Decentro, a YC-backed banking & payments API infrastructure company in Bangalore. Day to day: building banking API modules from scratch, implementing financial APIs and integrations, designing databases, and setting up CI/CD pipelines, using a Python/Flask back-end stack focused on security and scalability.
Senior Member of Technical Staff, Product Engineering
Senior product engineer at Pallet building and owning end-to-end features for CoPallet, an AI-agent platform that automates logistics back-office workflows like scheduling and load management. The work spans backend systems, data pipelines, and customer-facing product decisions on a stack of Node.js/TypeScript, PostgreSQL, React, GCP, and LLM integrations.
Software Engineer, Developer Products
Software engineer at a US-based, fully remote AI infrastructure platform, owning developer-facing products: the public REST API, TypeScript/Python SDKs, an Agent SDK, documentation, and CLI tooling for integrating language models, including optimizing them for AI coding agents.
Software Engineer – Iot, Automazione Industriale E Sistemi Di Controllo _ Rif. 9224
Software engineer building backend services, APIs and IoT/SCADA/MES data streaming to automatically control and optimize closed-loop glass production using AI/ML. Works in C++/C#/Rust on Windows/Linux with protocols like OPC-UA and Modbus; hybrid role in Rovereto with up to 40% remote and occasional global site visits.
Software Engineer (New York)
Full-stack software engineer at an investment research firm, building customer-facing websites, financial tools, and internal automation. Works across frontend (JavaScript/TypeScript, React) and backend (Python/Node.js), with Next.js, FastAPI, PostgreSQL, and AWS as the preferred stack. Remote role with a preference for NYC-based candidates.
Founding Engineer
Backend-leaning founding engineer at an early-stage healthtech startup in New York, owning core platform engineering across claims adjudication, real-time drug pricing, and payments infrastructure. Core stack: Python, FastAPI, PostgreSQL, GCP, React, TypeScript.
Software Engineer
Software engineer at Salient Motion building a web-based telemetry and diagnostics platform for motor controllers and electromechanical systems: developing React/TypeScript frontends and Electron apps, backend APIs and data pipelines with Node.js/Python and Firebase, alongside firmware and hardware engineers in Hawthorne, CA.
Software Engineering Intern
Konji, an app that pays you to shop, is hiring a Summer 2027 software engineering intern (10–12 weeks, full time, remote in the US, $35–$45/hour). You'll ship backend features end to end for its marketplace: catalog sync, search and recommendations, checkout, payments, the credit ledger, and ads.
Founding Engineer - Noptic Healthcare
Founding engineer at an early-stage healthcare XR startup: work directly with founders to finalize the MVP — backend, APIs, real-time clinician–patient communication, and cloud infrastructure, plus integrations with XR wearables, mobile, and AI. Starts as a paid project-based engagement with 1–5% equity and a path to a long-term founding role.
Head of Software Engineering
Leads the end-to-end engineering function at SOPHiA CRE, an AI-native commercial real estate platform, managing and mentoring a small distributed team while staying hands-on with architecture, code reviews, and delivery of LLM/agent-based features and integrations on cloud infrastructure (Python/TypeScript, Node.js, React, AWS/Azure/GCP). US remote role.