Senior Full-Stack Engineer
Confirmed on the employer's own hiring board on Nov 1, 2026. First seen by Alion on Oct 29, 2026.
Description
Alice's RL Environments team builds adversarial environments that the world's leading AI labs use to test and train their most capable agents. Each environment is a working replica of a real system with an attack planted inside it. A verifier decides whether the agent held up.
All of it runs on AgenticVerse, our platform for building, running, and reviewing RL environments. AgenticVerse is a full-fledged, production-grade SaaS application. A large and fast-growing community of researchers works in it every day.
We're looking for a Senior Full-Stack Engineer to own AgenticVerse as a product, and to build the digital twins our environments are made of.
What you'll do
AgenticVerse
- Own the AgenticVerse application end to end: frontend, backend, data model, and APIs
- Build the workflows researchers live in: authoring tasks, launching runs, managing gyms, and reviewing results
- Make a run readable at a glance: traces, verifier results, and where the agent went wrong
- Hold a production bar: performance, reliability, access control, and observability as the user base grows
- Take features from design to production, and talk to the researchers who use them
Digital twins
- Build digital twins of real products: web apps an agent can't tell apart from the real thing
- Build the full stack behind each one: the UI, a real API backend, and the state that persists across a run
- Expose every action the agent takes as an event the verifier can grade
Requirements
What we're looking for
- 6+ years as a full-stack engineer, building production SaaS
- BSc in Computer Science or a related field, preferably from a leading university
- Strong TypeScript and React, and a backend language (Python preferred)
- Experience designing APIs and data models for multi-user applications
- Production experience with Docker and cloud infrastructure (AWS preferred)
- High autonomy in an undefined space. You take a loose problem and come back with working code
- Fluent written and spoken English
Advantage
- Hands-on AI engineering: building with LLMs, agents, or evaluations
- Experience building developer tools or internal platforms
- Experience with Kubernetes
- Background in security, red teaming, or trust and safety
About Alice
Alice is a trust, safety, and security company built for the AI era. We safeguard the communicative technologies people use to create, collaborate, and interact- whether with each other or with machines.
In a world where AI has fundamentally changed the nature of risk, Alice provides end-to-end coverage across the entire AI lifecycle. We support frontier model labs, enterprises, and UGC platforms with a comprehensive suite of solutions: from model hardening evaluations and pre-deployment red-teaming to runtime guardrails and ongoing drift detection.
Alice is widely considered a global leader in online safety and AI security. We have some of the most forward-thinking and passionate minds in the world working to safeguard over 3 billion users across the largest AI and tech platforms.
If you're creative and driven to secure the future of AI, we want to hear from you!