Fullstack Software Engineer - AI Developer Tools

In our engineering team, we build infrastructure, interfaces, and applications to provide first-class service to our members, health professionals, and ourselves. Engineers work closely with product decisions and ownership. We move fast and tackle big problems. Our process is simple: those who make product decisions also build them. We provide articles about engineering careers at Alan., Python/Flask, React, React Native, PostgreSQL in a monorepo. We deploy daily and practice distributed ownership - you build it, you own it., Focus: Tech Foundations enables product teams and creates an environment to thrive, combining infrastructure, developer experience, operational excellence, and security to make shipping excellent products effortless. Everyone Can Build aims to propel Alan into the AI-native era by building tools, agents, and infrastructure that let engineers and non-engineers contribute at scale.

Scope:

1. Hopper - Alan’s background coding agent: agent orchestration, parallel agent pools, dashboard for builders.
2. AI-native engineering enablement - Integration, agentic workflows.
3. Autonomous testing infrastructure - agents validate their own work before shipping.
4. Sandboxed development environments - remove brittle local setups so everyone can contribute safely.
5. CI/CD and quality guardrails - auto-fix, complexity scoring, automated checks, and new PR review experiences for confident reviewing.
6. Non-engineer contribution tooling - flows and interfaces that enable Designers, PMs and Ops to contribute autonomously.

Focus for 2026:

We’re moving from monitoring AI tools to trusting AI agents, scaling Hopper alongside reliable infrastructure: managed agent pools, sandboxed environments, autonomous testing, and CI auto-fix. Engineers will routinely offload tasks to agents. Non-engineers will open pull requests after easily testing their changes. Agents will validate their own work before it ships.

• 3+ years in full-stack software engineering roles
• Experience building internal platforms, frameworks, CLIs, or libraries that improve developer workflows
• Experience with LLM APIs, agent orchestration frameworks, or AI-assisted coding tools is a strong plus
• You care about creating delightful experiences, whether building UIs or APIs

Mindset we value

• Think in terms of platform experience: engineers are your primary customers, and you care about reliable AI-native workflows for everyone
• Collaborative, humble, and motivated by enabling others
• Simplify complexity with elegant abstractions and maintainable code
• Excited about AI changing who builds - and want to build that infrastructure
• Fluent in English (no French required)
• High potential and curiosity: show us this when you apply; everything else is a bonus

We are on a journey to build a global leading company with a unique culture. We already partner with 40K+ companies and serve more than 1M+ members, with €800M+ in ARR. Prevention is the new norm. We are a team of 800+ people hiring across France, Spain, Belgium, and Canada and beyond.