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2,947 Founding Engineer jobs

Founding engineer roles building the first product at early-stage startups.

2.9K jobs

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2,947 jobs Posted Sort

C# Softwareentwickler (m/w/d) - ESFORIN SE

C# developer at ESFORIN, a European energy startup in Essen, building and optimizing complex systems for energy logistics and electricity trading to accelerate renewable energy integration. Day to day: designing, developing and deploying microservices with C#/.NET, REST APIs, and quality assurance of the existing product portfolio.

API C# Docker .NET Git +1 skills

Enterprise Software Engineer

Open 53d North AmericaContract

Build and maintain enterprise systems that track supplier commitments, manufacturing workflows, and quality processes for a nuclear energy startup, using Python, SQL, APIs, and AI-enabled automations.

Agentic AI AI Anomaly Detection API Automation +16 skills

Senior Staff /Staff Software Engineer

Senior Staff or Staff Software Engineer at Campus, a venture-backed accredited two-year online college. A hands-on, high-ownership role: take ambiguous, cross-cutting problems across the full stack, shape architecture and technical direction, and mentor engineers in a small NYC-based (hybrid) team. Pay is $210–240k (Staff) or $255–280k (Senior Staff) plus equity.

AI Developer Experience

210K – 280K $

Founding Software Engineer Python - Start-up

Join a fast-growing, well-backed AI start-up in Monument, Central London as a founding full-stack engineer, using Python to build technology that improves compliance and operational efficiency for the NHS and other regulated industries. Salary up to £115,000.

Grouper Technology Limited

Software Engineer - Web & Integrations

Senior Software Engineer designing reactive web applications and integration libraries for data analytics, visualization, and BI, including HRIS integrations. Day to day: building REST/HATEOAS APIs with Java and Spring, async messaging with RabbitMQ and Kafka, and cloud-native deployment on AWS/Azure within an Agile Scrum process.

Agile Analytics API Api Design AWS +18 skills

Staff Software Engineer

On-siteNorth AmericaStaff

Hands-on staff-level IC building AI workers (agent workflows) for US manufacturers' back-office teams like quoting and procurement, owning 0→1 initiatives from design through production. Stack is TypeScript end-to-end — React, Node.js, PostgreSQL on AWS and Kubernetes. Onsite in NYC five days a week.

AI AWS Backbone.js Developer Experience Distributed Systems +7 skills

Software Engineer

On-siteNorth America

0→1 product engineer at an early-stage startup building AI workers for US manufacturers' back-office teams. Ships full-stack features end-to-end with TypeScript, React, Node.js, and PostgreSQL — including LLM agent workflows and integrations with legacy ERPs/CRMs — onsite in NYC five days a week.

AI API Backbone.js Distributed Systems LLM +6 skills

Senior Software Engineer

On-siteNorth AmericaSenior

Hands-on senior IC role building AI workers (agents) for manufacturers' back-office functions at Forgepoint — leading 0→1 initiatives from technical design through production operation on a TypeScript/React/Node.js/PostgreSQL stack running on AWS and Kubernetes. Onsite in New York City five days a week.

AI AWS Backbone.js Developer Experience Distributed Systems +7 skills

Senior Software Engineer

HybridEuropeSenior

Senior Software Engineer on Alice & Bob's Pulse team in Paris builds and maintains the low-level software stack controlling quantum hardware — drivers and hardware abstraction layers for AWGs, digitizers, and custom FPGA-based instruments. Core technologies are Python, DSP, and low-latency hardware interfaces, with a strong technical leadership and mentoring component.

Automation Data Engineering Data Pipelines Ethernet FPGA +5 skills

Senior Robotics Software Engineer - Autonomy Architecture

HybridEuropeSenior

Senior robotics engineer in Zurich owning the shared task-level autonomy architecture for Gravis Robotics' autonomous construction machines. Day to day: designing module boundaries and orchestration across behaviors, building policy deployment/config tooling, and setting software-quality standards in modern C++ and Python.

AI Automation C++ LiDAR Networking +1 skills

Senior Systems Software Engineer

Open 94d UKSenior Licensed UK sponsor

Builds the production-critical control chain for Fractile's AI chip racks: firmware and services for rack management, BMC and board/device controllers across bare metal, RTOS and embedded Linux, using C and/or Rust. Covers bring-up, provisioning, telemetry, updates, recovery and security.

AI Embedded Linux Embedded Systems Firmware Linux +5 skills

Founding Engineer

Open 37d On-siteEuropeSenior

Build core marketing platform features end-to-end, from idea to production, with full ownership and AI-assisted tooling.

90K – 150K €

Senior Python Developer

Open 99d HybridNorth AmericaSenior H-1B sponsor history

About Us: We are an innovative technology startup focused on transforming professional services through cutting-edge software solutions and deep domain expertise. Our platform automates complex workflows, engaging…

AI API Azure Git Linux +3 skills

Senior Software Engineer (Agentic Search) - Web Access Engineer

Open 36d RemoteEurope, MENA, UKSenior

Build browser infrastructure and tooling for a novel search engine that powers agentic AI systems by reliably accessing and processing web content at scale.

Agentic AI AI API Automation Cloud +16 skills

Senior Software Engineer (Agentic Search) – Web Rendering Engineer

Open 36d RemoteEurope, MENA, UKSenior

Builds browser-based rendering infrastructure for a novel agentic search engine, executing complex JavaScript at scale to extract structured content for AI systems.

Agentic AI AI Angular API Distributed Systems +9 skills

150K – 200K $

Principal Software Engineer, Robot Software

Open 101d North AmericaFull-timePrincipal

Lead the design, architecture, and reliability of Wayve's robot software stack for autonomous vehicles, defining technical roadmaps, mentoring engineers, and collaborating across hardware, simulation, and data teams using C++, Python, ROS2 and real‑time systems.

AI C++ DevOps Distributed Systems Embedded Software +3 skills

296K – 375K $

Sensing Systems Engineer

Open 44d HybridNorth AmericaFull-time

The Sensing Systems Engineer at Wayve owns the vehicle sensor stack, defining performance requirements, building validation frameworks, and coordinating integration across hardware, software, and ML teams to ensure reliable autonomous driving data.

Acceptance Criteria AI Data Quality Embedded Systems LiDAR +1 skills

210K – 310K $

Customer Integration Engineer

Open 40d HybridEuropeFull-time

The Customer Integration Engineer provides hands‑on technical support to automotive customers, bridging their vehicle integration teams with Wayve’s internal engineers, troubleshooting AI driver issues using diagnostic tools, CAN/Ethernet protocols, and basic programming.

AI API Ethernet

Senior Software Engineer, Fleet Management

Open 31d HybridNorth AmericaFull-timeSenior

Builds and maintains fleet management platform for Wayve’s autonomous vehicles, enabling real-time software deployment, vehicle monitoring, and integration with dispatch services. Core tech: full-stack (React/TypeScript frontend, Rust/Go/Node.js backend), distributed systems, Kubernetes, Azure, and observability tools.

AI Analytics API Azure Cloud +11 skills

210K – 267K $

Automotive System Engineer

Open 31d HybridNorth AmericaFull-time

Design and define L2/L3 automotive-grade systems for Wayve’s AI-driven autonomous driving platform, handling requirements, data‑driven development, integration, testing, and cross‑team collaboration using sensor processing, neural networks, and vehicle control software.

AI C++ Iso 26262 Machine Learning MATLAB +4 skills

210K – 311K $