Prompt Engineering Lead

Robin AI

About Robin AI

Robin AI is on a mission to revolutionize the legal industry by simplifying contracts and making law accessible to everyone. We utilize cutting-edge machine learning and contract software, enhancing traditional legal services and bringing together experts in engineering, AI, and law. Robin AI has recently raised $10.5m Series A funding and has seen an impressive 20x revenue growth in the last 12 months.

At the heart of our offering is a traditional legal service which is being enhanced by cutting edge machine learning. We’re looking for passionate, resourceful and collaborative people to join Robin. If you’re passionate about leveraging technology to make essential business services more accessible, come join us!

About the role

Robin AI is seeking a Prompt Engineering Lead to join our team developing cutting-edge legal technology products powered by large language models (LLMs). You will work at the intersection of law and computer science to craft prompts that enable our software to automate and enhance legal workflows. As one of the first Prompt Engineers in our team, you will collaborate with lawyers, engineers, and product leaders to optimise prompts for drafting, reviewing, and analysing contracts.

You will draw on your legal background, technical skills, and creative thinking to improve our core NLP models and deliver innovative features to customers.

What you’ll do

  • Analysing legal workflows and high-value tasks to derive ideal prompts that enable our software to automate or augment them.
  • Working closely with other teams to scale our internal prompt infrastructure and streamline the onboarding process.
  • Leveraging legal domain expertise and technical skills to craft well-formed prompts that generate accurate responses from our models.
  • Lead a team of prompt engineers who are testing and iterating on prompts through our model training pipelines, measuring outputs, and fine-tuning to enhance precision.
  • Staying on top of the latest advancements in prompt engineering and large language model architectures.
  • Collaborating with product, engineering, and legal teams to identify new prompt-based solutions for product features.



  • Law degree or a law conversion course.
  • 3+ years’ experience drafting, negotiating and managing commercial contracts.
  • Experience managing your own team (including performance and capacity management).
  • Deep familiarity with contract lifecycle and workflows at law firms or legal departments.
  • Analytical mindset and experience with handling large data sets, setting out testing frameworks and using data to inform decisions.
  • Experience with legal tech products (such as eDiscovery systems, clause extraction projects, legal research or contract management tools) and enthusiasm for the industry.


  • Experience with crafting code to prepare data, define model architectures and configure training pipelines.
  • Experience working with machine learning or AI-driven products, and an understanding of core machine learning concepts.
  • Basic coding experience in Python.
  • Prior experience working directly with large language models and prompt creation.

Compensation at Robin AI

  • Salary: £75,000 – £135,000 depending on experience
  • Generous Equity package: When you help build Robin AI, everyone deserves to be an owner.
  • Please Note: If your salary expectations look a little different to that outlined, we’d still be keen to hear from you if this is a role that excites you and one that you think you could really excel in.

Benefits at Robin AI

At Robin AI, we put humanity first— we believe a great product is inextricably linked to a great internal community.

We’re a quickly growing, cross-functional team that values supporting each other’s development. As part of the team, you can expect:

  • 25 days PTO, excluding bank holidays, cultural leave, and birthday leave
  • Unlimited, trust-based sick leave
  • Enhanced gender-neutral parental leave
  • Technology to enable you to work seamlessly from the office or home
  • Focus on continual learning and development
  • Free healthy breakfast on Tuesdays, cinnamon rolls on Thursdays, and a fridge of beverages ordered to request!

Robin’s flexible work model aims to meet the needs of our diverse employee community by making work more flexible, connected, and inclusive. Depending on the role and needs of the team, Robin employees have the flexibility to work from home 2/3 days per week.

Robin is deliberate about the culture we are building and are committed to creating an inclusive environment that attracts the best talent from diverse backgrounds. Whether it’s helping curate the Robin Spotify playlist, discussing gender equality in tech, or taking a meditation break with our holistic health plan, we want you to find your space within the Robin community.

From our offices in Liverpool Street, London you’ll have access to all of the WeWork amenities including co-working space, bike lockers, pool tables, table tennis, free barista-made coffee and free beer in the evenings.

Diversity, equity and…

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