Freelance Senior Front-end Developer - Brand experience

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 Next.js / 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:

1. Interview with the Talent Acquisition Partner – 30-minute phone call


2. Interview with our Technical Leader – 45 minutes video call


3. Final Interview with the Manager (STAR method) – 45minutes 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.