2,916 Founding Engineer jobs
Founding engineer roles building the first product at early-stage startups.
Senior Software Engineer
Senior full-stack engineer building a Medicare broker platform that combines AI, a CRM, and client services to help seniors navigate complex healthcare coverage options.
Senior Software Engineer Python - Energy Trading
Senior Python engineer at a fast-growing, investor-backed energy technology company, turning complex quantitative research into robust, high-performance systems for managing renewable energy trading. London-based with WFH option; salary up to £140k.
Lumia Security- Senior Software Engineer
Lumia is a cybersecurity startup building AI security solutions using high-performance distributed systems. The role involves developing cloud-native microservices, primarily using Go, to address AI-related security challenges at scale.
Senior Software Engineer (Python / TypeScript / Azure)
Builds real-time distributed systems for advanced radar platforms, focusing on Python backend services, TypeScript/React operator interfaces, and Azure cloud infrastructure to process sensor data into actionable insights for defense and border protection teams.
Senior Software Engineer
Builds and scales AI-driven cybersecurity systems, focusing on agent workflows, retrieval pipelines, and secure backend infrastructure for a new DLP platform.
Mechanical Ground Systems Engineer (f/m/d)
Senior Mechanical Ground Systems Engineer at rocket developer Isar Aerospace, designing ground support equipment like launch tables, transporter/erectors, hold-down-release mechanisms, and test-facility hardware. Day to day: CAD design and simulation, drawings/BOMs, trade-offs, hardware selection, documentation and design reviews, plus on-site coordination at construction and test sites.
Fluid Systems Engineer, Propulsion (m/f/d)
Develops, analyses, and validates the fluid systems powering Isar Aerospace's launch vehicle propulsion — from requirements and simulation modeling through hardware design, test campaigns, and flight support. Core work spans fluid dynamics modeling, CAD hardware design (SolidWorks/Siemens NX), and Python-based engineering automation.
Software Engineering Team Lead
Lead a software engineering team at Oligo Security, a cybersecurity startup in Tel Aviv building a runtime application security platform. The role combines hands-on backend development and architecture with mentoring engineers, delivering scalable features on a stack including AWS, Kubernetes, PostgreSQL, Kafka, and Redis.
Integration Engineer
Solution Engineer at Oriient, a VC-backed startup building hardware-free indoor GPS. Day to day: embedded with a major customer in Bentonville, supporting complex integrations of Oriient's iOS/Android mobile SDK, debugging, architecting app flows, writing docs, and bridging the customer with R&D.
Chipset System Engineer
A Chipset System Engineer at Arbe Robotics in Tel Aviv develops and debugs radar SoC/ASIC platforms, defines subsystem requirements and interfaces, and simulates and validates radar/chip performance for automotive 4D imaging radar. Core tools include Matlab, Python, and C in a multidisciplinary system engineering role.
Software Engineer
Fourth engineer at Ask Silver, an anti-scam startup, building scalable backend services and APIs for its AI-powered scam-detection products, plus frontend widgets/dashboards and data pipelines integrating with financial platforms — writing clean, well-tested code primarily in Python or TypeScript (Django/React).
Senior Software Engineer
Senior engineer at FuelFWD, a Rotterdam startup building compliance software for the renewable fuels industry. Day to day: full-stack feature development, code reviews, and co-owning cloud infrastructure and CI/CD, working directly with the founders in a small hybrid team.
Senior Software Engineer, Observability
Builds and scales Together AI's observability platform for its AI cloud — metrics, logs, traces, telemetry pipelines, monitoring/alerting, and incident response — using Prometheus, Grafana, ClickStack, OpenTelemetry, Go, Python, Terraform, and Kubernetes.
Senior Software Engineer - AI Compute, Together Cloud
Senior engineer building the backend infrastructure for an AI acceleration cloud, including Kubernetes clusters, high-performance storage, and GPU virtualization across global data centers.
Staff Software Engineer, Inference / Compute Infrastructure Engineering London or Amsterdam
Build infrastructure-as-software systems that provision, manage, and self-heal GPU inference clusters at Together AI, using Go/Python/Rust, workflow orchestration (Temporal/Cadence), event-driven architecture (Kafka/NATS), and Kubernetes-style reconciliation loops.
Software Engineer, Agent Delivery
Software Engineer, Agent Delivery deploys production AI agents inside large supply chain companies — owning customer deployments end to end, from workflow discovery and integrations through production debugging and iteration. Stack includes Node/TypeScript on Encore.dev, PostgreSQL, GCP, Playwright, and LLMs (OpenAI, Anthropic, Vertex AI).
Software Engineer
Develops software in Python and C++ for Eureka Robotics' controller and camera products, adding device control, computer vision, and AI functionality for industrial automation. The role covers design, development, testing, and production support from the Singapore office.
Staff/Senior Software Engineer
Build AI products that accelerate solar cell R&D at a perovskite-silicon tandem solar manufacturer: lead the multi-agent planning/reasoning layer that reads scientific literature, queries lab data, and proposes experiment campaigns, while maintaining data pipelines and reviewing AI-written code. Core stack is Python backend, TypeScript/JS frontend, and frontier LLM APIs (e.g., LangGraph).
Engineering Manager - Observability
Leads a 6-engineer team owning end-to-end observability (logs, metrics, traces, incident detection/mitigation) across Atoms' infrastructure, staying roughly one-third hands-on. Stack: Go, Azure/AKS, Grafana, VictoriaMetrics, ClickHouse, OpenTelemetry. Onsite in Mountain View at a company building Physical AI robots for food delivery, mining, and transport.