Frontend Engineer

Tracer

Campinas

On-site

BRL 223,200 - 334,800

Full time

14 days+

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Job summary

A tech startup focusing on bioinformatics is looking for a Founding Product Engineer to lead the design and development of user experiences for web and mobile platforms. This role requires full-stack experience with Next.js, React, and TypeScript. Candidates should have a strong product mindset and be comfortable working in a dynamic startup environment. Competitive salary and significant autonomy are part of the offer.

Qualifications

3+ years building and launching complex full‑stack applications independently.
Deep expertise in Next.js, React, and TypeScript.
Proven ability to ship and maintain production-grade systems end to end.

Responsibilities

Architect, build, and deploy full-stack applications using Next.js, TypeScript.
Fully own web and mobile features end to end.
Deploy, maintain, and scale applications independently with Vercel and AWS.

Skills

Next.js

React

TypeScript

AWS

Vercel

Job description

Overview

→ This role is based on-site in London, UK

→ We offer UK visa sponsorship for exceptional candidates

About Tracer

Many scientists struggle to debug broken bioinformatics pipelines they use for research, slowing down the velocity of new scientific breakthroughs like drug development, that could help millions of people. To fix this, we're building an advanced observability platform for high‑performance computing. Backed by $3M in funding from top investors and located in the heart of London, we're assembling a founding team to accelerate. Ready to make an impact?

About The Role

As our Founding Product Engineer, you'll have the rare opportunity to design, build, and launch every user-facing experience for web and mobile from scratch. You will be solely responsible for developing and maintaining the entire front-end and full-stack systems, integrating with backend services and infrastructure.

Full-stack experience is required, you’ll manage everything from infrastructure through backend connections to UI. This role offers large autonomy and responsibility, ideal for someone ready to lead technically and shape the product foundation.

Key Responsibilities

Architect, build, and deploy full‑stack applications using Next.js, TypeScript, and related technologies
Fully own web and mobile features end to end:
Real-time observability dashboards
Advanced data visualisations
Backend integrations and data flow
Deploy, maintain, and scale applications independently with Vercel and AWS
Connect front‑end systems to backend databases (Clickhouse) and internal APIs
Establish engineering standards, build foundational tooling, and support future hiring
Partner closely with design, product, and backend teams to ensure cohesive development

Skills & Experience (required)

3+ years building and launching complex full‑stack applications independently
Deep expertise in Next.js, React, and TypeScript
Proven ability to ship and maintain production‑grade systems end to end
Experience deploying and scaling applications using Vercel and AWS
Strong product mindset, aligning technical decisions with user and business needs
Comfortable working autonomously in a fast‑moving, early‑stage environment

Bonus Qualifications

Experience with Clickhouse or other high‑performance data platforms
Prior experience as the sole or lead engineer on major product launches
Early‑stage startup or entrepreneurial experience
Core: Next.js, TypeScript, Vercel, AWS, Clickhouse
Additional (not required): Rust (backend), Nextflow, AlphaFold, Terraform, eBPF

Note: Full-stack experience is required. Additional tech experience is beneficial but not essential—adaptability, fundamentals, and curiosity are our priorities.

Application Instructions

A link to your portfolio, GitHub, or live products built from scratch
A short write‑up outlining your most impactful technical achievement, your role, and key learnings

Interview Process (subject to change)