Freelance Senior Front-end Developer in London
Freelance Senior Front-end Developer

Freelance Senior Front-end Developer in London

London Freelance 48000 - 72000 £ / year (est.) Home office (partial)
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At a Glance

  • Tasks: Own the development and maintenance of our corporate website with a focus on user experience.
  • Company: Join Mirakl, a leading eCommerce software provider trusted by top global brands.
  • Benefits: Freelance contract with hybrid work setup in vibrant London Soho.
  • Why this job: Make a real impact on digital transformation for innovative retailers and B2B organisations.
  • Qualifications: Proven front-end development skills with React/Tailwind and a keen eye for design.
  • Other info: Collaborative culture that values diverse perspectives and continuous learning.

The predicted salary is between 48000 - 72000 £ per year.

About Mirakl

Mirakl is the leading provider of eCommerce software solutions. Mirakl's suite of solutions provides enterprises with a transformative way to drive significant growth and efficiency in their online business. Since 2012, Mirakl has been pioneering the platform economy, empowering retail and B2B enterprises with the most advanced, secure and scalable technology to digitize and expand product assortment through marketplace and dropship, improve efficiency in supplier catalog management and payments, personalize shopping experiences, and boost profits through retail media.

Mirakl is trusted by 400+ industry-leading businesses worldwide including Macy's, Decathlon, Best Buy, Airbus, Toyota Material Handling and Sonepar. Headquartered in Paris with another office in Bordeaux and with offices in 7 countries, Mirakl is recognized as a Great Place to Work company. With more than 350 people, Mirakl Labs teams are mainly based in France. They work together on a daily basis to develop our roadmap for our 5 SaaS solutions. They also address the issues faced by our customers and users, responding to various challenges related to new features, scalability, security, and usability.

Position Type: 3-month Freelance Contract (Full-time)

Location: London Soho

The team you’ll join

Mirakl is looking for a front-end developer to take ownership of the development and maintenance of our corporate website. This role sits at the intersection of engineering, design, and marketing.

Your impact

  • You will build pages and components that are pixel-accurate, fast, accessible, and measurable, with a strong focus on user experience and conversion.

What you’ll bring to the role

  • Own day-to-day development and maintenance of the corporate website, from implementation to continuous improvement.
  • Translate design into pixel-perfect, responsive, accessible interfaces, with strong attention to spacing, typography, and UI states.
  • Create and refine micro-interactions and motion to improve clarity, feedback, and usability.
  • Implement reusable components, templates, and content models that scale across pages and campaigns.
  • Work closely with Design and Marketing to deliver content and campaign needs quickly while maintaining high quality standards.
  • Ensure strong performance, SEO & GEO best practices, and reliable releases.
  • Set up and use tracking to understand performance (traffic, conversion, funnels) and propose improvements based on data.
  • Improve the integration workflow (QA, documentation, review process) to scale safely.
  • Contribute to HubSpot development needs, such as landing pages and marketing emails.

What Mirakl is looking for in a candidate

  • Proven knowledge of modern front-end development with React / Tailwind, with deep CSS proficiency.
  • Front-end integration skills with a "designer-level" eye for detail. You can deliver a pixel-perfect UI without compromising responsiveness and accessibility.
  • Solid UX sensitivity, and the ability to make practical trade-offs through code.
  • Proven experience implementing micro-interactions (hover states, transitions, loading states, motion, feedback).
  • Hands-on experience with headless CMS, and platforms such as Contentful, Prismic, Strapi (or similar).
  • We’re looking for someone bilingual in English.

Good to Have

  • Good understanding of website performance, SEO+GEO basics, and analytics/tracking, with an interest in the business goals of corporate websites.
  • Knowledge of HubSpot (templates, landing pages, emails).
  • French skills are a plus.

What will make you successful in this role

  • You are quality-driven, fast, and reliable.
  • You care about details (layout, typography, interactions, consistency) and you can explain your choices.
  • You collaborate well with designers and marketers, and you can turn feedback into concrete improvements.
  • You take ownership and can work independently while keeping stakeholders aligned.

The role is based in London Soho and offers a hybrid set up with at least 3 days a week working at the office.

Recruitment Process:

  • Interview with the Talent Acquisition Partner – 30-minute phone call
  • Interview with our Technical Leader – 45 minutes video call
  • Final Interview with the Manager (STAR method) – 45 minutes at the office

We welcome collaborators with their diverse perspectives and experiences to power us forward. These often far exceed conventional job requirements and help us create a culture of continuous learning. If you’re ready to join a global leader powering digital transformation for 450+ of the world’s most innovative retailers and B2B organizations, we strongly encourage you to apply to any of our roles, even if you think you’re not an exact match.

We may use Artificial Intelligence (AI) solutions to help streamline our hiring process, including screening applications, analyzing resumes, and assessing responses. While AI helps us work efficiently, all final hiring decisions are made by humans. For more information, visit our AI Guidelines for Candidates and Interviews.

Freelance Senior Front-end Developer in London employer: Labs

Mirakl is an exceptional employer, offering a dynamic work environment in the heart of London Soho, where creativity and innovation thrive. With a strong focus on employee growth, Mirakl provides opportunities for continuous learning and collaboration across teams, ensuring that every team member can contribute to impactful projects. The hybrid work setup promotes a healthy work-life balance, while the company's recognition as a Great Place to Work highlights its commitment to fostering a supportive and inclusive culture.
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Contact Detail:

Labs Recruiting Team

StudySmarter Expert Advice 🤫

We think this is how you could land Freelance Senior Front-end Developer in London

✨Tip Number 1

Network like a pro! Reach out to your connections in the industry, attend meetups, and engage with online communities. You never know who might have the inside scoop on job openings or can refer you directly.

✨Tip Number 2

Nail that interview prep! Research Mirakl thoroughly, understand their products, and be ready to discuss how your skills align with their needs. Practise common interview questions and prepare some thoughtful ones of your own.

✨Tip Number 3

Show off your work! Create a portfolio that highlights your best projects, especially those that demonstrate your front-end skills. Make sure it’s easy to navigate and visually appealing—just like the websites you’ll be building!

✨Tip Number 4

Apply through our website! It’s the best way to ensure your application gets seen by the right people. Plus, it shows you’re genuinely interested in joining the team at Mirakl.

We think you need these skills to ace Freelance Senior Front-end Developer in London

React
Tailwind
CSS Proficiency
Front-end Integration Skills
Responsive Design
Accessibility Standards
Micro-interactions Implementation
Headless CMS Experience
Contentful
Prismic
Strapi
SEO Best Practices
Analytics and Tracking
HubSpot Knowledge
Collaboration Skills

Some tips for your application 🫡

Show Off Your Skills: Make sure to highlight your front-end development skills, especially with React and Tailwind. We want to see how you can create pixel-perfect designs that are also responsive and accessible.

Tailor Your Application: Don’t just send a generic application! Take the time to tailor your CV and cover letter to reflect how your experience aligns with what we’re looking for at Mirakl. It shows us you’re genuinely interested.

Be Clear and Concise: When writing your application, keep it clear and to the point. We appreciate well-structured applications that get straight to the heart of your experience and skills without unnecessary fluff.

Apply Through Our Website: We encourage you to apply directly through our website. It’s the best way to ensure your application gets into the right hands and helps us keep track of all applicants efficiently.

How to prepare for a job interview at Labs

✨Know Your Tech Stack

Make sure you brush up on your knowledge of React, Tailwind, and CSS before the interview. Be ready to discuss how you've used these technologies in past projects, especially when it comes to creating pixel-perfect, responsive designs.

✨Showcase Your UX Sensitivity

Prepare examples that highlight your understanding of user experience. Discuss how you've implemented micro-interactions and made practical trade-offs in your previous work. This will demonstrate your ability to balance aesthetics with functionality.

✨Be Ready for Collaboration Questions

Since this role involves working closely with designers and marketers, think of specific instances where you've successfully collaborated with other teams. Use the STAR method to structure your answers, focusing on how you turned feedback into actionable improvements.

✨Understand Performance Metrics

Familiarise yourself with website performance, SEO, and analytics tracking. Be prepared to discuss how you've used data to propose improvements in your previous roles. This shows that you not only care about the code but also the business goals behind it.

Freelance Senior Front-end Developer in London
Labs
Location: London

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