Full Stack Engineer

Stealth AI Startup (Policing); Greater London; On-site; GBP 90,000 - 120,000; Full time

Job summary

Stealth AI Startup (Policing) is seeking a senior backend engineer to own on-prem deployment end-to-end, contribute to internal cloud infrastructure, and shape the broader product in a policing-focused AI setting.

You'll work with our head of integration across full stack, infra, and ML systems, using Node, NestJS, TS, Python, and AWS services to deliver production-ready pipelines and models.

Qualifications

• Production deployment experience with infrastructure as code in regulated data environments.
• Experience with regulated data (law enforcement, healthcare, legal tech, or government).

Responsibilities

• Own on-prem deployment end-to-end and contribute to internal cloud infrastructure.
• Develop and maintain the backbone connecting our API, data pipelines, cloud infra, and production ML models.

Job description

Our aim: to build real-world AI for safety- and privacy‑critical settings, specifically policing. For police to serve people in a transparent and consensus‑based way is demanding for many reasons. Lack of good interactive tools should not be among their challenges.

Focus of this role: Build and maintain the internal backbone connecting our API, event‑driven data pipelines, cloud infrastructure, and production ML models, spanning both AWS‑hosted and on‑premises deployments. Working with our head of integration in a multiple‑hat role spanning full stack engineering, infra, and ML systems.

We're looking for a senior engineer who has learned the hard way: someone with real production ownership under their belt, startup scar tissue, and the instinct to get in and build. You'll own on‑prem deployment end‑to‑end, contribute to our internal cloud infrastructure, and develop the broader product.

Backend: Node, NestJS, Typescript, Drizzle.

AWS: ECS, Lambda, Kinesis, Aurora, S3, KMS, Cognito, CloudFront, ALB, GuardDuty, SecurityHub, SageMaker.

Python for Lambda handlers, ML inference glue, data processing.

Must‑have

• Production deployment experience and infrastructure as code.
• Experience with regulated data (law enforcement, healthcare, legal tech, or government), including data classification, audit trails, and access control patterns in practice.

Apply through LinkedIn or directly here: https://forms.gle/Q5399f6ZmxPLfUYf9