Founding Backend Architect for Enterprise SaaS
Proaction
Proaction is seeking a Founding Engineer to architect and scale its core platform. This is a hands-on, high-ownership role in a fast-moving, early-stage environment, reporting to the CTO to define system architecture and engineering standards. You’ll build a modern TypeScript backend (NestJS), PostgreSQL and AWS-backed services, with a React frontend. You’ll own backend architecture, shape product and engineering culture from day one, and grow into long-term technical leadership as the company #J-18808-Ljbffr Proaction
- ...Nth AI, builders of Nexus, is seeking a founding Head of Engineering to own the engineering... ...turn an emerging product into reliable enterprise software. This hands-on leadership... ...role requires shipping capabilities across backend, data workflows, and user interfaces,...Backend
- ...turn advanced AI models into a scalable SaaS workflow for biotech startups. You will own... ...product end‑to‑end, shaping frontend, backend, data, and integrations with a strong emphasis... ...shipping velocity in a demanding enterprise context. #J-18808-Ljbffr Eli Lilly and CompanyBackend
- ...experienced engineer to own architecture and deliver production features across four SaaS products. You will design backend models for multi-hospital structures, implement enterprise integrations, and collaborate with customers to translate needs into scalable solutions...BackendRemote job
- CoffeeSpace seeks a Lead Frontend Developer to own the frontend direction of its AI-powered enterprise SaaS platform. You will lead a team of junior developers and collaborate with designers and PMs to shape the product experience. You will mentor engineers, drive architecture...Suggested
- Compunnel, Inc. is seeking a Lead Software Engineer with 10+ years of backend experience to design and implement Zip Intake-to-Contract/... ...solutions, optimize procurement workflows, and lead technical architecture for enterprise platforms. #J-18808-Ljbffr Compunnel, Inc.BackendContract work
- ...Staff Software Engineer to join TuneLab as one of the founding engineers. This IC role owns product end‑to‑end,... ...Manager. You will own the product surfaces, drive backend/frontend/data work, and ensure a scalable SaaS offering built on Lilly’s AI models for biotech customers...Backend
$200k - $230k
...Description Job Description Founding Platform Engineer | AI... ...Distributed Systems & SaaS ~ New York City or... ...Engineer to help architect and build the core... ...emerging challenges in enterprise technology: ensuring... ...Design and build the backend systems that power a scalable...BackendVisa sponsorship$200k - $300k
...highly skilled Senior/Staff Founding Full-Stack Engineer – Agent Systems... ...is heavily focused on backend engineering and systems, the... ...Experience with multi-tenant SaaS or AI infrastructure Strong... ...execution Experience with enterprise integrations Previous experience...BackendFull timeH1bWork at officeVisa sponsorshipMonday to Friday- ...Founding Engineer As a Founding Software Engineer at Tenzo AI, you'll play a pivotal... ...Nice to Have We are looking for backend and AI engineers, so ideally you will have... ...We're not building yet another enterprise SaaS tool. We're creating AI agents that fundamentally...BackendWork at office
- ...an API for. About the Role: This is a backend- and systems-heavy founding engineering role where \"full-stack\" means owning... ...orchestration, security, multi-tenant SaaS, agent infrastructure, MDM, ITSM, enterprise integrations, or virtualized execution # Thinks...BackendFull timeH1bWork at officeVisa sponsorshipMonday to Friday
- Coinbase is seeking an Architect to design distributed backend systems powering customer service and compliance platforms in San Francisco. You will define strategic roadmaps, lead technical direction, and mentor engineers to improve engineering quality. The role requires...Backend
- ...Founding Senior Software Engineer (SF In-Person Preferred... ...the stack - from backend systems to real-time voice... ...LLM APIs, but architecting the intelligence layer... ...observable systems that handle enterprise-scale workloads with... ..., or enterprise SaaS Experience at an early...Backend
$150k - $250k
# Founding AI Infrastructure EngineerRemote (US) or Hybrid... ...About UsHarden is the enterprise security and... ...telemetry, and audit trails* •Architect event-driven systems... ...+ years experience in backend/platform/infra roles (... ..., or enterprise SaaS infrastructure experience...BackendFull time$130k - $200k
...well-funded, seed-stage B2B SaaS startup in the supply chain integrations... ...space is looking for a Founding Software Engineer to help... ...(TypeScript, React), backend (Node.js), infrastructure (AWS... ...supply chain, logistics, or enterprise integration domains (EDI, ERP...BackendWork at officeVisa sponsorship- ...Anthropic, Llama, and Huggingface. As a founding product engineer, you will collapse... ...a single, reliable standard. You will architect backend systems in Python and FastAPI, shape the... ..., and ship the infrastructure that enterprise teams depend on to route LLM traffic across...Backend
- ...Build the next generation of enterprise AI software. Nth AI is building Nexus, an AI-native... ...AI into production. We’re hiring a Founding Head of Engineering to own the... ...ship complete capabilities across Nexus’s backend, orchestration, data workflows, and user...Backend
- Reducto is seeking a Senior Growth Marketing Manager in San Francisco to build and operate programs that acquire, activate, and re-engage customers. You’ll own paid search, paid social, ABM, lifecycle campaigns, and collaborate with Product, Marketing Operations, and Sales...
$200k - $220k
...Description Job Description Job Title: AI Architect / FDE – Healthcare Salary: $200,000 – $... ...Engineer (FDE) to lead AI-enabled enterprise architecture, Google Cloud Platform (GCP... ...considerations. Design and develop scalable backend applications using Java and Spring Boot....Backend- ...re already working with large enterprise clients, generating... ...Role We’re hiring our first Founding Engineer to own and expand the... ...engine using LLMs and OCR Own backend architecture and infrastructure... ...document extraction engine Architect backend systems with...BackendWork at office
$150k - $300k
...grew to several hundred enterprise customers moving... ...outcome is not a nice SaaS exit; it is a new kind... ...team calls a “GME”: you architect, build and iterate on... ...and TypeScript/Node.js. Backend systems shipped at a company... ...resonate strongly: Founding Engineer, Founding AI...BackendPart timeH1bWork at officeRelocationOverseasVisa sponsorship- ...CA (On-site, 5 days/week) Role We're looking for a backend-leaning Founding Engineer (0-7 years experience) who has shipped production... ...frontline point of contact for customer feedback and support enterprise deployments Write clear, maintainable code and...BackendRelocation
- ...than 750,000 patients worldwide. The Test Architect is a senior individual contributor and... ...rigor of a medical device QMS. This is the founding technical hire for Heartflow's Test... ...-end testing framework across frontend, backend, 3D modeling, and AI/ML systems, and for...BackendContract workFor contractorsLocal areaWorldwideRelocation
- ...Software solutions is looking for a Gen AI Architect Details: GenAI Architect (... ...-on project expertise to implement an enterprise application built on top of SQL and... ...development of AI application using Python backend frameworks and multiple inferencing pipelines...Backend
- ...About the Role The Enterprise Trust & Governance team builds the control plane that lets... ...experience, with a track record of owning complex backend systems from design through production... ...reliable, scalable, multi-tenant SaaS platforms with clear security and isolation...Backend
- ...retrieval across large program datasets Implement enterprise infrastructure: SSO/SAML, role-based access, audit logging... ...we’re looking for ~5+ years building production SaaS products ~ Experience designing backend systems for multi-tenant, workflow-heavy applications...BackendFull timeRemote work
- ...is building the system that lets every enterprise measure how its agents perform, understand... ...improve on their own. Litmus was founded in August 2026 by Sidharth Srinivasan, who... ...You might be a fit if You're a strong backend or infrastructure engineer who has been...BackendWork at officeRelocation package
- ...the AI success layer for the enterprise. We sit inside the flow of... ...engineering role. You’ll be our founding engineer, with an outsized... ...In 12 months, you’ll: Architect key parts of the system Be... ...TypeScript, React, Next.js, backend APIs, and Postgres Comfortable...Backend
$160k - $230k
...Now job # ZR 93 Company Overview : Enterprise agents built for procurement AI... ...manufacturers. Role Details Founding Engineering role with end-to-end... ...fundamentals, proficiency in Python and React; backend experience required. Experience with...BackendVisa sponsorship- Our client in San Francisco is hiring a founding backend engineer to own end-to-end system design for an AI coworker platform. You will build a durable workflow engine, secure identity models, and policy-driven authorization across human, service, and agent interactions...Backend
- ...deployed with customers in government and enterprise. We won 1st place at the US Conference... ...Axios. About The Role We are hiring a Founding AI Engineer to build the systems that... ...teams. You will work on everything – backend, frontend, AI, infrastructure, and security...Backend
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