About us

At Pareto.AI, we’re on a mission to enable top talent around the world to participate in the development of cutting-edge AI models.

In coming years, AI models will transform how we work and create thousands of new AI training jobs for skilled talent around the world. We’ve joined forces with top AI and crowd researchers at Anthropic, Character.AI, Imbue, Stanford, and University of Pennsylvania to build a fair and ethical platform for AI developers to collaborate with domain experts to train bespoke AI models.

About This Role

We’re seeking a Lead or Senior+ Frontend Engineer to join our platform engineering team. You’ll play a pivotal part in developing the next-generation human data collection platform by building sophisticated, highly-performant user interfaces for AI/ML development, driving product strategy, and directly impacting our startup trajectory. You will be responsible for creating the engaging and intuitive experiences that connect users to our powerful backend systems.

You'd be a great fit at Pareto if

• You are truly good at your craft and want to be surrounded by others who, like yourself, are constantly seeking to better themselves.

• You move the needle for your team forwards, not backwards. Those you have worked with in the past view you as a resource and come to you for support.

• You value dedicated teamwork, respect, and curiosity, as well as navigating communication in cross-functional, culturally diverse environments.

• Engineering excellence is your pursuit, demonstrated by your solid understanding of React, TypeScript, and modern JavaScript/HTML/CSS best practices.

• You are not content with the status quo and consistently seek innovative solutions to existing problems, with a commitment to personal and collective growth.

Key Responsibilities

• Owning – truly owning – the frontend from architecture and specifications through to ensuring reliable, high-quality, live deployments.

• Ability to understand, translate, breakdown and estimate the product roadmap into features, focusing on UI/UX implementation.

• Lead user testing sessions with stakeholders on some of the features you implement.

• An understanding of performance optimization (e.g., bundle size, load times, rendering) and an eye for code cleanliness.

• Contribute to maintaining a best-in-class quality pipeline, encompassing Linting, CI/CD, and usability/end-to-end tests.

What You’ll Need

• Ambition to be consistently testing and optimizing code and component performance.

• Enough professional experience that positions you to be flexible, reliable and move quickly.

• Proficiency in React (with Hooks and functional components) and modern front-end tooling like Vite, Webpack, or similar.

• Professional experience with TypeScript – this means true professional experience. You understand how to leverage it for complex state and component prop management; you understand its shortcomings; you are able to build and structure things intuitively. Otherwise, the desire and ability to learn quickly.

• Knowledge of different state management paradigms (e.g., Redux Toolkit, Zustand, Context API).

• An eye for accessibility (WCAG) and cross-browser and cross-operating system compatibility.

• Familiarity with product and design lifecycles, collaborating with designers and product managers to translate mockups into pixel-perfect, scalable components.

• Proven ability to write high-quality, well-tested, and maintainable code, including robust unit and integration tests (e.g., Jest).

• Familiarity with current trends and best practices in frontend development.

• Excellent communication skills and ability to work in a fast-paced environment.

Nice to have

• Strong Django/Python experience so you can unblock yourself when necessary.

• Familiarity with component libraries and design systems (e.g., Storybook).

• Experience with testing frameworks like Cypress or Playwright for end-to-end testing.

• Familiarity with or an interest in improving developer tooling — we’re currently running a one-command setup for a full-blown local dev environment that mimics prod!

• Familiarity with modern backend frameworks (Django/Python) and API integration (REST/GraphQL).

Our Stack

Frontend:

• React 18.x

• Vite

• TypeScript

Backend:

• Django 5.x

• Python 3.12

Infra (AWS):

• Fargate

• ECS

• RDS (Postgres)

• Clickhouse