Senior Data Scientist - Love & Pies

We are the makers of casual mobile hit Love & Pies, which globally launched in September 2021 and has now found its way into the hands of millions of players around the world. We’re backed by Supercell, one of the biggest and best in the industry.

‍We make games for everyone that are snackable yet nourishing — built to fit into your daily life, but with the emotional depth of your favourite TV show. Our team always comes first at Trailmix, and our culture is built on both high performance and high care — we strive to be the best versions of ourselves, but always within an environment based on inclusivity, respect and safety, no matter who you are or where you come from.

About the Role

As a Senior Data Scientist embedded in the Love & Pies team, you’ll turn player data into delightful, personalised game experiences. You’ll lead deep-dive investigations, design and evaluate experiments, power segmentation & personalisation initiatives, and partner with Marketing on cohort analysis and attribution—all to grow player love and long‑term value.

• Drive Strategic Insights and Decision‑Making
• Lead deep dives to diagnose performance shifts in engagement, retention, monetisation and conversion; distill findings into clear, high‑leverage recommendations for Product, LiveOps and Economy.
• Define north‑star and guardrail metrics; build concise readouts and narratives that drive clarity and alignment across technical and non‑technical stakeholders.

• Own and Advance Experimentation & Analytics Framework
• Own A/B and multivariate test design (hypotheses, power analysis, success metrics, guardrails; apply CUPED/variance reduction where appropriate) and deliver rigorous experiment readouts.
• Specify and validate event tracking; champion data quality, reproducibility and documentation across SQL and Python workflows.
• Set up robust monitoring and dashboards for feature launches and LiveOps; establish alerting to catch regressions early.

• Segmentation & Personalisation
• Build and iterate on clustering, propensity and uplift models (e.g., churn, pay, return) to power next‑best‑action logic, targeted content, offers and LiveOps surfaces.
• Partner with product/design to translate models into player‑facing experiences; measure and iterate for sustained LTV and retention impact.

• Partner Across Disciplines (incl. Marketing)
• Work closely with Analysts, Engineers, Designers and the Economy team to shape specs, success metrics and post‑launch evaluation.
• Collaborate with Marketing on cohort analysis and attribution/incrementality, informing channel mix, spend allocation and creative/testing strategies.

About You

• Significant experience as a Data Scientist (or similar) in free‑to‑play/mobile games or adjacent consumer products, with strong product sense.
• Fluency in SQL and strong Python skills (pandas/NumPy; scikit‑learn or equivalent) for data wrangling, modeling and reproducible analysis.
• Proven expertise in experiment design & inference (powering, guardrails, multiple testing; frequentist and/or Bayesian) and in delivering crisp, actionable readouts.
• Hands‑on experience with segmentation, propensity & uplift models and turning models into personalisation at scale.
• Comfortable partnering with Marketing on cohorts, incrementality tests and pragmatic attribution under privacy constraints.
• Excellent communication; you translate complex analysis into simple, decision‑ready narratives. Collaborative, humble and player‑obsessed.

Great to Have

• Casual/F2P games analytics, economy design support or LiveOps experimentation experience.
• Familiarity with BI tools (Looker, Tableau, Omni) and modern data workflows (dbt, Airflow, Spark/Databricks or similar).

Why Trailmix?

As a member of our team, you’ll work in an environment where collaboration and creative energy drive everything we do. We believe that working closely with colleagues from across departments is essential to crafting the best experiences for our players. Our office is a place where ideas come together, and we work side by side to turn them into reality.

Our London Studio Location

Our hybrid work model combines the flexibility of remote work with the creative energy of being together in person.

We work from our Kings Cross studio together three days a week — Monday, Thursday, and Friday, because we believe great games (and great teams) are built through genuine collaboration.

These days are focused, energised, and designed for impact:

• We solve problems faster
• We share ideas in the moment
• We drive decisions that move us forward

This rhythm helps us deliver our best work not just for each other, but for our players. It’s how we build momentum, grow together, and stay ahead in a fast-moving industry.

Our Benefits

• Investing in Your Growth: Unleash your potential with our generous development budget. After completing your three-month probation, all team members receive a £1,000 allowance to fuel their professional growth each year.
• Fueling Your Day: Our kitchens are fully stocked with delicious treats and drinks, and we provide breakfast and lunch supplies to keep you energised throughout the day.
• Building Connections: Join us every Friday for a team lunch courtesy of Just Eat - a chance to connect and recharge for the week ahead..
• Planning for Your Future: Take control of your financial future with our contributory pension scheme. Plus, enjoy the added benefit of tax-free contributions.
• Unlocking Ownership: As a valued team member, you'll have the opportunity to own a stake in our success through tax-advantaged stock options.
• Caring for Your Well-being: Your health is our priority. Enjoy peace of mind with our fully comprehensive private medical care, with premiums paid by Trailmix. Plus, access mental health support 24/7 with the Spill Mental Health App.
• Time to Recharge: Our generous holiday allowance allows you to take a well-deserved break. You'll enjoy 28 days of annual leave, including three company holiday days around Christmas.
• Surprise and Delight: Feel appreciated and valued with various company gifts throughout the year.
• Celebrations: Join us for various socials and events throughout the year, from team outings to themed parties.
• Setting You Up for Success: Receive a £250 work-from-home budget to ensure you have the proper home setup to perform at your best.