AI Engineer - London at Sequence

✨ The Stack take on this Sequence job

• 🏢 Sequence has 3 jobs here, 2 with visa sponsorship see all
• 🛂 Skilled Worker visa. Standard minimum salary: £41,700 a year guide

Updated 2026-11-05, from our data and official sources.

Apply with your AI assistant

With The Stack connected to Claude, ChatGPT or Cursor, paste this. Your assistant tailors your CV and cover letter, checks the visa facts and gives you the apply link.

Help me apply to this job on The Stack: https://jobs.trythestack.co/jobs/ai-engineer-london-sequence

Not connected yet? Connect in a minute. To help your user apply, call the MCP tool prepare_application with slug "ai-engineer-london-sequence": it returns the apply link, the visa facts and a CV and cover letter checklist. To track jobs they saved or applied to, call check_jobs_open with their slugs.

About the role

Responsibilities:
- Design, build and own AI infrastructure for production LLM systems: agentic workflows, prompt iteration, tool integration and evals.
- Implement AI‑powered approval workflows that translate natural‑language rules into deterministic, auditable business logic.
- Develop intelligent agents (e.g., collections agent) that run configurable, autonomous workflows with proper context handling and observability.
- Ensure model safety and reliability: threat analysis, sandboxing, testing, monitoring and degradation strategies.
- Collaborate with product and backend teams to ship end‑to‑end features and maintain production quality and latency SLAs.

Requirements:
- Proven track record shipping LLM‑based systems to production and familiarity with failure modes in real customers' environments.
- Experience designing agentic systems, eval frameworks and prompt engineering practices.
- Strong backend engineering skills and production experience (Kotlin/Java, Postgres, GCP/Vertex AI, Terraform, TypeScript a plus).
- Practical knowledge of AI security, testing (e.g., prompt regression tests), monitoring, and tooling (Langsmith, evals, embeddings, memory).
- Comfortable with ambiguity, product‑led development, and building reliable, auditable systems for business‑critical workflows.

Responsibilities

Build and own the AI infrastructure to enable reliable software on top of non-deterministic models, including agentic workflows and evals. Develop AI-powered approval workflows and intelligent collections agents to automate revenue cycle processes.

Requirements

Requires a builder with proven experience shipping production LLM-based systems and designing agentic architectures. Must be comfortable with ambiguity and capable of building resilient, business-critical backend systems.

Key skills

• LLM Systems — in 2 other listings on The Stack
• Agentic Workflows — in 25 other listings on The Stack
• Evals Infrastructure — not in any other listing on The Stack
• Backend Engineering — in 127 other listings on The Stack
• Prompt Engineering — in 59 other listings on The Stack
• AI Security — in 6 other listings on The Stack
• Kotlin — in 251 other listings on The Stack
• Postgres — in 69 other listings on The Stack
• Vertex AI
• Langsmith
• TypeScript
• React
• Terraform
• Google Cloud Platform
• System Architecture
• API Design

On The Stack (as of 2026-11-05)

• Sequence has 2 other listings on The Stack, 1 of them marked as offering visa sponsorship.
• 214 visa-sponsored jobs in the United Kingdom on The Stack, posted in the last 60 days.
• 18 visa-sponsored ai engineer jobs in Europe on The Stack, posted in the last 60 days.
• The top of its stated salary (GBP 130,000 per year) is higher than 4 of the 16 other GBP per-year salaries stated by listings in the United Kingdom on The Stack.

Frequently asked questions about Sequence

Is this AI Engineer - London role still open?

It was posted on 2026-05-15. Listings more than 30 days old may no longer be active, so check Sequence's site before applying.

Does Sequence offer visa sponsorship?

This listing is marked as offering visa sponsorship. Eligibility rules are set by the employer, so check the details on Sequence's site.

Where is this role located?

The listing gives the location as London, United Kingdom. It is marked hybrid.

What is the salary for this role?

The listing states a salary of GBP 115,000–130,000 per year.

What skills does this role ask for?

The listing names: LLM Systems, Agentic Workflows, Evals Infrastructure, Backend Engineering, Prompt Engineering, AI Security, Kotlin, Postgres, Vertex AI, Langsmith, TypeScript, React, Terraform, Google Cloud Platform, System Architecture, API Design.