Senior Marketing Analyst

The Opportunity:

The Senior Marketing Analyst will be a key member of the Growth Analytics team, responsible for generating insights from marketing channel, campaign, and performance data to drive strategic decision-making. This role partners with Growth, Marketing, and Digital teams to optimise marketing spend, measure trade efficiencies, and enable data-driven experimentation.

What you’ll be doing:

Marketing & Performance Analytics

• Conduct deep-dive analysis at channel and campaign level to optimise acquisition and retention.


• Build dashboards, reports, and models to track and communicate business performance.


• Provide insights into key growth drivers such as margin, retention, and customer lifetime value.

Experimentation & Measurement

• Design, advise, and evaluate marketing experiments to measure incrementality.


• Develop and apply methodologies such as MMM and attribution models to assess ROI.


• Create frameworks and best practices to scale experimentation across teams.

Cross-Functional Collaboration

• Partner with Growth, Product, Engineering, and Data to ensure robust data infrastructure, metrics, and tools.


• Influence marketing and growth strategy through data-driven insights.


• Communicate findings clearly to stakeholders, enabling data-informed decision making.

What you'll bring to HeliosX:

• 3-5 years in a marketing analytics role within a digital marketing environment.


• Hands-on experience with attribution models, marketing mix modelling, and acquisition campaigns (Paid Social, Paid Search, Affiliates).


• Strong track record in statistical analysis and experimentation design (A/B testing, multivariate testing, causal inference tools like GeoLift, Causal Impact).


• Advanced SQL and Excel/Sheets, Python (nice to have).


• Proficiency with analytics and data visualisation tools (Metabase, Looker, Tableau, PowerBI).


• Strong data interpretation and storytelling ability.


• Excellent written and verbal communication skills.


• Bachelor’s or Master’s degree in a quantitative discipline (Mathematics, Economics, Engineering, Statistics, Computer Science, Physics, etc.).

Life at HeliosX

At HeliosX, we want to improve healthcare for everyone, and to do this we need a team of brilliant people who share that ambition. We are currently a diverse team of engineers, scientists, clinical researchers, physicians, pharmacists, marketeers, and customer care specialists committed to our mission - but we need more talented folks to join us, if we want to achieve our global ambitions!

Aside from working with our all-star team, here are the other benefits of coming on board:

• Generous equity allocations with significant upside potential


• 25 Days Holiday (+ all the usual Bank Holidays)


• Private health insurance, along with extra dental and eye care cover


• Pension scheme


• Enhanced parental leave


• Cycle-to-work Scheme


• Electric Car Scheme


• Free Dermatica and MedExpress products every month, as well as family discounts


• Home office allowance


• Access to a Headspace subscription, discounted gym memberships, and a learning and development budget

 #LI-Senior #LI-Hybrid