Dex
Senior Replication Engineer (up to £160k)
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About the Role
This role is with one of Dex's trusted partner companies. We work closely with their teams to truly understand their culture, goals, and what they're looking for, so we can match you with the right opportunity and give you context about the role before you commit to a process.
If you're interested sign up to Dex to apply.
Dex
Dex is an AI recruiter agent that helps you run your job search. Tell Dex your stack, seniority, and what you want to build. We will manage your applications and surface other opportunities that are a fit.
The Role
This lab is building the infrastructure for AI agents to learn through active experience, not static datasets. They create interactive, resettable digital environments where AI agents learn through trial and error, operating at the intersection of software engineering, simulation infrastructure, and frontier AI.
As a Senior Replication Engineer, you'll lead the effort to clone complex production systems into high-fidelity, resettable simulations. This isn't about'mostly working' solutions; any gap breaks the AI. You'll own the plan, build the tooling, and orchestrate LLM agents to achieve a pace of days per clone, not weeks. This role is for engineers who want to build the foundational fidelity for frontier AI, not just integrate existing models.
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The Work
- Transform diverse production systems – from legacy enterprise apps to modern SaaS – into high-fidelity, resettable digital twins.
- Lead the technical strategy and execution for cloning new environments, targeting a pace of days per system, not weeks.
- Design and build the core tooling, AI scaffolds, and verification harnesses that ensure simulation fidelity.
- Orchestrate LLM agents to automate the generation of scrapers, glue code, and comprehensive tests.
- Set the standard for simulation accuracy; any deviation directly impacts AI agent learning and performance.
What You Bring
- Deep hands-on software engineering experience in production, with mastery of at least one typed language.
- Proven ability to take 0-to-1 technical problems, form a plan, and coordinate work across a small team.
- Practical experience with cloud systems, deployment, infrastructure, or CI/CD; ideally with Terraform, Docker, or Kubernetes.
- You actively orchestrate LLM agents to generate code and tests as part of your workflow, beyond basic prompting.
- Thrive in an early-stage, frontier AI environment with changing priorities and incomplete information.
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Why Apply Through Dex
This is a rare, high-impact role at the cutting edge of AI infrastructure. Dex helps you cut through the noise: apply once, get a full brief on this specific opportunity, and skip the cold outreach. We connect you directly to the hiring team, ensuring your application stands out for roles you won't find easily elsewhere.
If you're interested, sign up to Dex to apply - https://jobs.meetdex.ai/jobs/8e0f7eb4-5375-46f5-b2fe-ad4a311dbb05
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