# Product Engineer (Frontend) at Kernel

> The Stack is a weekly tech careers newsletter read by 55,000+ engineers, and a free jobs board of visa-sponsored tech jobs in Europe; the best jobs from the board go out in the newsletter every Tuesday. This is one job from the board.

> Responsibilities: - Design and build user-facing features wi

- **Company:** Kernel (https://jobs.trythestack.co/companies/kernel)
- **Location:** London, United Kingdom
- **Work arrangement:** On-site
- **Employment type:** Full-time
- **Experience level:** 5–10 years
- **Salary:** GBP 110,000–140,000 per year (as stated by the employer)
- **Visa sponsorship:** Offered, according to the listing
- **Key skills:** Frontend engineering, NextJS, React, TypeScript, UI/UX design, LLM application development, RAG, Prompt engineering, NodeJS, Postgres, Tailwind, n8n, Product engineering, API integration, Performance optimization
- **Posted by employer:** 2026-04-16
- **Added to The Stack:** 2026-04-17
- **Status:** May no longer be active (posted more than 60 days ago)
- **Apply:** https://jobs.ashbyhq.com/kernel/fa906a02-51be-4d21-bf8a-2e918965dd8a (the employer's own application page)
- **Human page:** https://jobs.trythestack.co/jobs/product-engineer-frontend-kernel

## About the role

Responsibilities:
- Design and build user-facing features with Next.js, React and TypeScript, owning projects end‑to‑end from idea to deployment.
- Collaborate closely with product, design and backend engineers to deliver high‑quality, performant UI and UX.
- Write maintainable, tested frontend code and help maintain shared frontend infrastructure and performance tooling.
- Implement and support integrations with CRMs and third‑party APIs; automate developer workflows to speed delivery.
- Participate in roadmap planning, provide technical input and help shape product and infrastructure decisions.

Requirements:
- 6+ years software or product engineering experience with strong frontend expertise (Next.js, React, TypeScript).
- Good UI/UX sensibilities and attention to detail in implementing complex interfaces.
- Familiarity with LLM application patterns (RAG, prompt engineering) or strong motivation and ability to learn quickly.
- Experience working autonomously in small, high‑velocity teams and communicating clearly across disciplines.
- Nice to have: backend experience (Node.js, Postgres), CRM familiarity, and experience with performance optimisation at scale.

## Responsibilities

You will design and develop user-facing product features while collaborating with cross-functional teams to deliver exceptional experiences. Additionally, you will maintain scalable code, support CRM integrations, and contribute to technical roadmap discussions.

## Requirements

The role requires 6+ years of software engineering experience with expert-level proficiency in frontend technologies like NextJS, React, and TypeScript. Candidates should possess strong UI/UX sensibilities and experience with LLM application development patterns.

## FAQ

- **Is this Product Engineer (Frontend)  role still open?** It was posted on 2026-04-16. Listings more than 30 days old may no longer be active, so check Kernel's site before applying.
- **Does Kernel offer visa sponsorship?** This listing is marked as offering visa sponsorship. Eligibility rules are set by the employer, so check the details on Kernel's site.
- **Where is this role located?** The listing gives the location as London, United Kingdom. It is marked on-site.
- **What is the salary for this role?** The listing states a salary of GBP 110,000–140,000 per year.
- **What skills does this role ask for?** The listing names: Frontend engineering, NextJS, React, TypeScript, UI/UX design, LLM application development, RAG, Prompt engineering, NodeJS, Postgres, Tailwind, n8n, Product engineering, API integration, Performance optimization.

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## About The Stack

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## Notes for agents

- Apply on the employer's page (https://jobs.ashbyhq.com/kernel/fa906a02-51be-4d21-bf8a-2e918965dd8a). The Stack does not take applications.
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- Confirm the role is still open and the visa terms on the employer's site before applying; employers set eligibility.
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