Freelance Senior Frontend Engineer Freelance Engineering · London ·

Elsewhen; London; Remote; GBP 60,000 - 90,000; Full time

Job summary

A leading consultancy based in London seeks a Senior Frontend Engineer to enhance customer experiences through high-quality web applications. The ideal candidate will be skilled in JavaScript and React, possess strong teamwork capabilities, and be passionate about user experience, contributing to a collaborative remote-first environment.

Benefits

Remote-first setup

WeWork membership for occasional office access

Internal training courses

Access to conferences

Qualifications

• 5+ years of experience in a relevant frontend role in Agile environments.
• Strong fundamentals in JavaScript, TypeScript, React, HTML, and CSS.
• Familiar with modern toolings and trends.

Responsibilities

• Translate visual designs into app components with high fidelity.
• Deliver scalable, maintainable, and high-quality code.
• Collaborate with backend and product teams to design APIs.

Skills

JavaScript

TypeScript

React

HTML

CSS

Agile methodology

User experience

Code quality

Modern testing frameworks

Continuous delivery

Job description

• Remote Contract (UK Candidates only)
• Ideal start date: 2-3 weeks
• Contract Duration: 6 months
• Outside IR35

About Elsewhen:

Elsewhen, a London-based end to end consultancy, designs digital products and services for clients like Spotify, Google, Inmarsat, and WPP. Over the past decade, we have built a workplace prioritising impact, drive, openness, and friendliness. We value outcomes over hours and agility over rigid processes.

Work Environment:

• Remote-first setup: Fully remote work with the option to use a WeWork membership for those who prefer occasional office access.
• Join our team:https://www.elsewhen.com.

We’re looking for a Senior Frontend Engineer to join our engineering team. In this role, you will have collective ownership together with an outstanding team to ensure an excellent customer experience throughout the different projects.

Things you will be doing:

• Translate visual designs into app components with extremely high fidelity.
• Deliver scalable, testable, maintainable, and high-quality code
• Share knowledge, evangelise standard methodologies, and collaborate and ability to develop and guide others
• You will configure the front end's continuous integration and code-quality tools. (GitHub Actions, GCP)
• Assume responsibility for the technical design and implementation of solutions to complex features.
• Collaborate with the backend team to design APIs (OpenAPI) to support front-end requirements.
• Review other team members' codes and, provide feedback, assist junior developers in coding and debugging.
• Partner with product and design teams to deliver a cohesive user experience
• Drive things forward and influence skills to promote ideas and plans
• Work in an environment that supports your individual growth by providing you with exciting work, the freedom to acquire new skills on hack days, reading groups, and a variety of internal training courses or external conferences

Your Experience:

• You have 5+ years of experience in a relevant role, preferably in an Agile development environment and building medium/large-scale web applications
• You have strong fundamentals in JavaScript, TypeScript, React, HTML, and CSS
• Familiar with the latest trends and toolings (State management, React Query, Vite, Styled Component etc.)
• Familiarity with MonoRepo ecosystem and MicroFrontend
• You care about user experience and have experience collaborating with multi-functional partners (e.g. product, design, user research) to build responsive, intuitive applications.
• Passionate about code quality, continuous delivery, and automated testing.
• Familiar with component-based ecosystems. (design systems, Storybook, Figma)
• Proficient with modern testing frameworks (e.g., vitest/cypress/playwright)
• You have an in-depth understanding of front-end architecture and performance optimisation.
• Experienced with git-based source control, CI/CD pipelines(like Github Actions) and containers
• You have excellent communication skills and can demonstrate your ideas, especially to those not technologically proficient.