We’re looking for a Fullstack Founding Engineer to join as our first hire and work hand-in-hand with Alexandre - Co-founder & CTO.

You’ll help build the core product from the ground up: production AI systems, backend architecture, and user-facing features used daily by law firms and insurers.

This is not a research role. It’s about turning cutting-edge AI into reliable, real-world software in a complex, high-stakes domain. You’ll shape product decisions and own systems end-to-end, from early prototypes to production.

You’ll have a major impact on what we build, how we build it, and how engineering evolves at DamageX.

Responsibilities

Product & Engineering

• Design, build and ship core features across platform, AI pipelines and integrations

• Own technical architecture choices with scalability, security, and compliance in mind

• Work closely with the founding team and studio partners from ideation to production

• Take part in every high-impact technical decision that will shape the product

  AI & Production Systems

• Build and evolve production AI pipelines (LLMs, RAG, agent-based systems) for real legal workflows

• Ensure reliability, traceability, and explainability of AI outputs

• Continuously optimize performance, cost, and quality as the platform scale

  Ownership, Quality & Scalability

• Own systems from build to production, with a strong focus on quality, reliability, and scalability

• Support live deployments with law firms and insurance companies

• Help define how engineering is done at DamageX (processes, standards, tooling)

You’re an experienced, product-minded engineer who enjoys building real systems in complex environments and owning things end-to-end.

You like working close to founders and users, making pragmatic technical decisions, and shipping software that actually runs in production.

You’ll thrive in this role if you:

• Have built production systems in startup or product environments, with real ownership over features or architecture

• Are comfortable with full-stack TypeScript + React and happy to work across backend, product, and infrastructure

• Are curious about LLMs and generative AI: you’ve experimented with them and want to turn them into reliable products

• Have a strong product mindset: you care about the “why” and think in terms of user impact

• Enjoy working with unstructured data and document-heavy workflows

• Are pragmatic in execution: you know when to go deep vs when to ship fast

• Are energized by early-stage ambiguity and taking ownership alongside technical founders

• Bonus points if you have production experience with cloud infrastructure, document ingestion (OCR), agent-based systems, or regulated environments.

⚙️ Our tech stack

Our stack is designed to support AI-first workflows and production reliability.

• Backend & Frontend: TypeScript, Node.js, React, tRPC

• Infrastructure: AWS (Terraform)

• Data & AI: Bedrock, Textract & custom agents

• Database: SQL (PostgreSQL)

You don’t need to master every tool — what matters is your ability to design robust systems, learn fast, and make sound technical trade-offs.

💎 What we offer

• Ownership & Impact: As the first engineering hire, you’ll have real influence on the product and technical direction

• Bring AI to real users: Build production AI systems that solve real problems in a complex, high-stakes domain

• Hexa ecosystem: Access to expertise, resources, and network from one of Europe’s leading startup studios

• Competitive package: Attractive salary + meaningful equity

• Paris-based team: Work alongside the founding team in our office

• Growth: Opportunity to grow into a technical leadership role as the team scales

DamageX is committed to creating a diverse environment. All qualified applicants will receive consideration for employment irrespective of gender, origin, identity, background and sexual orientation.

We know there’s a long way to go regarding diversity in our industry, which is why we encourage all applicants to apply to our open positions.