Senior Python Engineer, ML

Company: Lawhive
Apply for the Senior Python Engineer, ML
Location: London
Job Description:

About Lawhive

Our mission is to make the law accessible to everyone. The legal industry is built on technology and processes that haven’t been updated in hundreds of years – that’s why we’ve reinvented the entire model from the ground up with our own bespoke AI operating system at the core. Lawhive is a regulated law firm with an AI-native platform built to amplify expertise and revolutionise the way people practice law, leading to exceptional outcomes for clients and lawyers. Lawhive Labs is how we bring this vision to life. It’s our frontier lab that combines top engineering, design, AI and legal talent from around the world, joining forces to build the future of law.

Engineering at Lawhive

We are a team of 40 engineers and researchers, responsible for architecting, building and running Lawhive’s platform, relied on by hundreds of legal professionals every day in the UK, US, and beyond. In the next 12 months, we’re focused on pushing the envelope on the user experience of lawyers’ AI interactions, building modularity and country independence into the heart of our platform, and delivering full‑stack AI‑native legal services.

The Role

We’re looking for a Senior Python Engineer to join our AI Engineering & Infrastructure team to bring our latest AI‑driven features and services into production. Deploying them at scale, improving infrastructure, and ensuring robustness in production. You’ll work closely with AI researchers, software engineers, and product teams to bridge the gap between cutting‑edge AI research and real‑world applications.

Responsibilities

  • Develop production‑ready APIs and services that expose AI functionality to internal and external applications.
  • Improve reliability and monitoring for AI‑driven applications in production.
  • Scale AI systems to handle real‑world legal use cases (e.g., legal document analysis, case predictions, automated legal advice).
  • Collaborate with AI engineers to ensure smooth deployment of AI workflows and models into production.
  • Work with event‑driven architectures and async workflows to process large‑scale AI workloads efficiently.
  • Ensure security and compliance in AI‑driven legal services.

Requirements

  • Strong Python experience in building scalable backend systems.
  • Familiarity with API design and distributed systems architecture.
  • Experience with event‑driven architectures (e.g., Kafka, Pub/Sub, AWS Step Functions).
  • Experience with cloud platforms (AWS, GCP).
  • Understanding of best practices in observability, monitoring, and debugging.

Nice to Have

  • LLM observability and evaluation – familiarity with tools such as Langfuse for monitoring model generations, managing prompts, and measuring quality in production.
  • Experience optimising performance and scaling distributed AI workloads; ML Ops experience.
  • Full‑stack Typescript experience.
  • Hands‑on work with vector databases, hybrid retrieval methods, and evaluation of retrieval quality.
  • Experience with agent frameworks or orchestration tools (e.g., LangChain, AutoGen, Inngest, Temporal) for LLMs that call tools and coordinate workflows.
  • Experience collaborating with researchers to integrate new models, pipelines, or research outputs iteratively.
  • Prior experience in legal tech – understanding of the legal industry and experience with legal technology solutions.

Interview Process

  • Introductory call with our Talent team.
  • 1:1 with your hiring manager.
  • Live technical assessment – systems design and pairing with two of our engineers.
  • Values interview with our CTO/Co‑founder.

UK Benefits

  • Meaningful early‑stage equity at one of Europe’s fastest growing startups.
  • 33 days annual leave (25 + bank holidays) plus your birthday off.
  • Work from anywhere for a month.
  • Pension contribution via Nest.
  • Top‑spec equipment – MacBook or Windows.
  • Regular team building activities and socials.

Diversity at Lawhive

At Lawhive, we know that diversity of thought is critical to delivering outlier outcomes. As such, we’re always working hard to ensure we build a diverse, inclusive team, and as we scale, we’ll only ever increase the focus we apply to this.

Compensation Range: £90K – £140K

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Posted: May 19th, 2026