Job Description

We're looking for a

Senior Frontend Engineer

who can do more than just build great UIs -- someone who obsesses over design details, loves simplifying complexity, and enjoys creating systems that make the whole team better.



If you get equally excited about debugging a

webpack config

, perfecting that

2px border-radius

, and setting up workflows where

AI becomes your coding partner

, we'd love to talk.

What You'll Do

Build fast, elegant, and accessible

frontend experiences

that scale beautifully. Collaborate closely with designers to turn

wireframes

into pixel-perfect, production-ready UI. Yes you bring in standardisation of UI components to achieve this. Design and implement

micro-frontend architectures

-- splitting large apps into modular, maintainable components. Take ownership of our

build pipeline

, from bundling and code-splitting to lazy-loading and caching. Keep our

Storybook

setup fresh and reliable -- documenting reusable UI components and ensuring consistency. Write performant, testable, and maintainable code using

React

,

TypeScript

, and

Node.js

. Use

Playwright

to automate E2E scenarios and ensure every interaction works as expected. Continuously optimising for

performance

-- bundle size, runtime speed, and Core Web Vitals should excite you as much as new features.

What We're Looking For

3-6 years of experience building production-grade frontend applications. Solid grasp of

React

,

TypeScript

, and modern frontend tooling. Experience working with (or curiosity about)

micro-frontend setups

and

module federation

. Deep understanding of

bundlers

(Webpack, Vite, Rollup) and how to optimise build performance. Hands-on experience with

Storybook

and design systems. Practical exposure to

Node.js

-- you're comfortable writing scripts or light backend logic. Strong understanding of

web performance

, caching, and network optimisations. Familiarity with

Playwright

or similar E2E frameworks. An eye for

UI/UX detail

-- you care about interaction states, spacing, and accessibility.

Bonus Points

You've led or contributed to

micro-frontend migrations

or large-scale design system rollouts. You've measured and improved

Core Web Vitals

in production. You enjoy experimenting with

new bundler tech

(e.g. esbuild, rspack, Rsbuild). You love finding the balance between

beautiful interfaces

and

blazing-fast delivery

.

Why You'll Love Working Here

You'll have

real influence

over our frontend architecture and developer experience. We value

craftsmanship

- clean code, thoughtful design, and performance all matter equally here. A collaborative team that enjoys solving tough problems (and sometimes bikeshedding over naming things). Flexible culture - focus on outcomes, not timesheets. Plenty of room to grow into system design, architecture, or leadership tracks.

Additional Information

At 100ms, we place a strong emphasis on in-office presence to promote collaboration and strengthen company culture. * Under the current policy, employees are expected to work from the office at least three days a week--Tuesday, Wednesday, and Friday--as an essential part of their role.