Most of the CCX team after our summer activityMost of the CCX team after our summer activity

Senior Front-end Developer (Experimentation)

Who We Are

Founded in 2017, Creative CX is a specialist Experimentation Consultancy.

At Creative CX we believe that continually improving the customer experience through research, innovation and experimentation is critical to remain relevant and competitive. We strive to make a real difference to our clients’ businesses and their customers’ lives through the work that we do. 

We’re lucky to work with fantastic clients such as M&S, easyJet, AJ Bell, Hastings Direct, Primark, Premier Inn and YOOX Net-A-Porter Group.  Helping them to innovate and continuously improve through research and experimentation, and helping them to mature and scale their experimentation programmes. 

We help our clients to optimise, personalise and innovate across the entire customer experience, to drive measurable growth.

And we help them establish and scale experimentation programmes so that every team can experiment everywhere. 

What is the job?

We are seeking a talented and motivated Senior Front-End Developer to join our dynamic team, so if you are passionate about building high-performance digital platforms, then this could be the next role for you.  

You will work alongside multi-disciplined teams and clients to strategise and execute visually appealing, responsive, and intuitive experimentation programmes that help our clients drive user engagement, conversions and overall product success. 

This is a hybrid role based in our Central London office with flexibility to work from home for 3-4 days per week.

We need you to

  • Build and maintain high-quality, scalable front-end applications and user interfaces, ensuring tests are developed precisely to specification, with a keen eye on feasibility and potential impact .
  • Enable and manage A/B tests, multivariate tests, and personalisation initiatives from a technical perspective.
  • Develop reusable, modular components that support rapid experimentation and iteration
  • Embrace AI-enabled ways of working, using emerging tools and techniques to enhance productivity, experimentation velocity, and problem-solving
  • Integrate with experimentation and personalisation tools (e.g. Optimizely, VWO, Adobe Target)
  • Ensure accurate event tracking and data collection for experiments
  • Optimise front-end performance, accessibility, and cross-browser compatibility
  • Work closely with product managers, designers, and analysts to execute experimentation strategies

You’ll be

  • Technical, Analytical & innovative.
  • Consultative and strategic in nature.
  • Inquisitive, to stay ahead of industry trends in experimentation and developments in AI.
  • An advocate for best practices in coding, testing, and deployment.
  • Never satisfied with the status quo – always looking to improve and innovate. We’re an experimentation consultancy at heart, so trial and error is in our DNA.
  • Excellent in front of clients, explaining problems in a simplified manner and presenting your ideas.
  • Positive in your attitude to challenges and change.
  • A problem finder, solver and fast learner.
  • Able to manage multiple projects.
  • Detail orientated, ensuring precision and accuracy in all aspects of work.
  • Highly agile to challenges and changes with a constructive and optimistic approach.
  • Able to connect with our values:  respect, collaboration, passion for innovation – to name a few.

You’ll have

  • 5+ years of experience within Development/Engineering  and/or 3+ years of experience within Experimentation.
  • Extensive experience with experimentation platforms –  (Optimizely, Monetate, AB Tasty, Dynamic Yield).
  • Proficiency in HTML, CSS, JavaScript, Adobe and popular front-end frameworks (e.g., React, Angular, or Vue).
  • Proficiency in integrating APIs, third-party libraries, and data visualisation tools.
  • Deep understanding of experimentation methodologies and statistical principles.
  • Proven experience in consulting or client-facing roles, with strong interpersonal and communication skills.

Nice to have

  • Bachelor’s degree in Computer Science, Web Development, or a related field.
  • Experience with Product-led Experimentation/Server-side Experiment would be a bonus.
  • Experience of  setting up and implementing experimentation and/or analytics platforms.

You’ll get

Creative CX is filled with great people with bundles of talent and ideas. Come and join our fantastic team and you’ll be part of an exciting growing consultancy. Some of our benefits include:

  • 25 days’ holiday each year.
  • An extra day for every year at Creative CX up to a maximum of 5 extra days.
  • An additional day off for your birthday after 3 years of service.
  • Regular social events and away days, arranged by our social committee.
  • Regular coaching, a continuously updated personal development plan and a generous training budget, to help you reach your full potential.
  • Company contributory pension scheme.
  • Perkbox membership, giving you a wide range of discounts.
  • Private Medical Cover.
  • Life Assurance.
  • Salary Sacrifice Schemes – Cycle to Work and Gym Scheme.
  • Charity Payroll – giving before tax.

Please note: we only consider applicants with current legal right to work in the countries in which our positions are based.

Creative CX is an equal opportunity employer. Creative CX recruits, employs, trains, compensates and promotes regardless of race, religion, colour, national origin, sex, disability, age, and other protected status as required by applicable law.

If you have the skills and experience we are looking for and you are looking to join a fun and inclusive team, send your CV and covering letter to us at hr@creative-cx.com.