Humanloop Logo

Humanloop

Frontend Product Engineer

Posted 6 Days Ago
Hybrid
London, England, GBR
Entry level
Hybrid
London, England, GBR
Entry level
Build end-to-end product experiences as a customer-focused full-stack engineer with a frontend emphasis. Develop scalable components and design systems using Python, FastAPI, PostgreSQL, TypeScript, Next.js, React, Tailwind CSS, AWS, and PyTorch. Collaborate closely with users, propose product initiatives, write clean code, and ship features rapidly for AI and LLM-focused developer tools.
The summary above was generated by AI
About Humanloop

Large Language Models and AI more generally are the next computing platform. Millions of developers will be building with this technology and at Humanloop you'll have a chance to work at the frontier and shape the future.

You'll get the chance to work really hard on a problem that matters alongside super-smart people who are passionate about what they do. The environment is fast-paced with new features being shipped every week or even every day. The customers we get to work with are themselves inspiring AI startups who are also trying to use this amazing new technology to build products and services that were previously science fiction.


About the role

A Frontend Product Engineer is customer-obsessed, full stack software engineer who can delivery a full product experience with a focus on the frontend.

We’re a small, smart and hard working team, working in a very fast moving space at the frontier of AI. It's crucial that you can quickly work throughout the stack to deliver product end-to-end while caring deeply about solving underlying customer needs. Meaningful impact is guaranteed.

It doesn’t matter what languages and tools you know when you join us, but it does matter that you can write clean, effective code and craft elegant solutions. We aim for a clean, simple modern stack, which is currently:

  • Python backend (FastAPI, Postgres)

  • TypeScript frontend (Next.js, React, Tailwindcss)

  • AWS for most of our infrastructure

About you
  • You care deeply about customer needs and solving them with product.

  • You're excited by our mission and the potential of machine learning and artificial intelligence.

  • You are able to, or want to be able to, work at every level of the stack.

  • You’re excited by being one of the first employees in an early-stage company where you can have autonomy and impact.

  • You want to grow. The success of our company is a function of the people in our team. Your growth rate will be directly causal to Humanloop's growth rate. We spend a lot of time thinking about each other’s success paths.

  • You get excited about learning new things, writing blog posts and going to conferences to talk about all things product and engineering.

  • You'll create components and design systems that scale

  • You'll have good taste for when we build something in house, and where existing tools are appropriate

  • You hold yourself and the rest of the team to a high bar and design experiences that are not just functional, but delightful to our users

  • You are a product leader who comes up with great initiatives and product ideas, and not just someone who takes a feature and make it "functional".

  • You communicate your thoughts and decisions clearly and proactively, and talk to users around the world constantly, knowing that their expectation may differ from your intuition.

Experience

We think that people with amazing ability can come from all sorts of backgrounds, not necessarily prestigious schools or companies. You primarily need to prove that you can write excellent, clean code and care deeply about building great product. You can demonstrate this through your own projects, OSS contributions or experience at other companies. When looking at your contributions, we value quality over quantity.

Offices in London and San Francisco

We find that in person time allows us to move faster, learn from each other and have more fun. Everyone is in the office on Tuesdays and Wednesdays. On other days you can choose to work from home or in the office. Our London office has most of product and engineering, and our new SF office is primarily focused on GTM.

Technology

Our current stack is

  • A Python backend with pytorch for our deep learning framework

  • Next/React for our frontend

  • AWS for most of our infrastructure

We're building software tools to help developers and founders evaluate how well their LLM apps are working and improve them through finetuning and experiments. By using Humanloop, companies can build much more defensible products on top of models like GPT-3.

HQ

Humanloop London, England Office

London, United Kingdom

Similar Jobs

17 Days Ago
In-Office or Remote
United Kingdom
Expert/Leader
Expert/Leader
Healthtech • Retail • Pharmaceutical • Telehealth
Lead frontend architecture and product delivery across Moxie, with a focus on design systems, GraphQL data architecture, frontend tooling, CI, performance, and development workflows. Partner with Design, Product, engineering managers, and staff engineers to establish canonical patterns, guide adoption without formal authority, ship FinOps features, and drive organization-wide technical initiatives. The role remains hands-on while influencing architecture, engineering culture, and AI-native software development practices.
Top Skills: ApolloFigmaGraphQLGraphql Code GeneratorMuiNext.JsReactStorybookTypescript
One Month Ago
In-Office
London, Greater London, England, GBR
Entry level
Entry level
Events • Software
Build and own product features end to end across Next.js, React, TypeScript, and Laravel. Translate prototypes and specifications into production code, use and critically review AI-generated code, maintain tests, manage data and permissions safely, and ship changes to a live enterprise event-management platform. The role emphasizes front-end development, full-stack ownership, product thinking, accessibility, and collaboration with product teams.
Top Skills: Claude CodeEloquentLaravelNext.JsPestPHPPhpunitPlaywrightReactTypescript
3 Months Ago
In-Office
London, Greater London, England, GBR
Mid level
Mid level
Artificial Intelligence • Software
As a Product Engineer at Atla, you will build user-centric platforms for AI agent evaluation, focusing on frontend development and collaboration with various teams.
Top Skills: AzureCi/CdNextjsPostgresPrismaReactReact QuerySupabaseTypescriptVercel

What you need to know about the London Tech Scene

London isn't just a hub for established businesses; it's also a nursery for innovation. Boasting one of the most recognized fintech ecosystems in Europe, attracting billions in investments each year, London's success has made it a go-to destination for startups looking to make their mark. Top U.K. companies like Hoptin, Moneybox and Marshmallow have already made the city their base — yet fintech is just the beginning. From healthtech to renewable energy to cybersecurity and beyond, the city's startups are breaking new ground across a range of industries.

Sign up now Access later

Create Free Account

Please log in or sign up to report this job.

Create Free Account