Growth Data Science & Analytics Lead (Maternity Cover)

Flo Health

500M+ downloads. 80M+ monthly users. A decade of building – and we’re still accelerating. Flo is the world’s #1 health & fitness app worldwide on a mission to build a better future for female health. Backed by a $200M investment led by General Atlantic, we became the first product of our kind to reach a $1B valuation in 2024 – and we’re not slowing down. With 7M paid subscribers and the highest-rated experience in the App Store’s health category, we’ve spent 10 years earning trust at scale. Now, we’re building the next generation of digital health – AI-powered, privacy-first, clinically backed – to help our users know their body better. The job We’re hiring a Data Science Lead in London to build and lead our Predictive Growth Optimisation team – pioneering ML models that power our user acquisition strategy, predict lifetime value, and optimise our $25M+ annual marketing spend across channels. This role owns the strategy, development, and continuous improvement of Flo’s pLTV system - a mission-critical model reused across UA, AdTech, personalisation, and financial forecasting. That is the core of the role. Alongside it, you'll stand up a Marketing Mix Modeling (MMM) capability to measure cross-channel effectiveness and inform budget allocation, and develop the algorithms to drive real-time UA campaign management. You'll lead a team building production systems that directly impact our growth trajectory, staying as hands-on as you choose. WHAT YOU’LL DO * Lead & develop a team of 6+ ML and Backend engineers - hiring, mentoring, and setting technical direction * Own pLTV strategy - architect and evolve our core predictive lifetime value models that inform millions in UA decisions * Stand up MMM - build our Marketing Mix Modeling capability: adstock and saturation modelling, channel contribution, and budget allocation, calibrated against our incrementality experiments * Power real-time campaign management - develop the algorithms that optimise our UA campaigns across channels in real time * Build production ML systems - from real-time prediction services handling millions of daily predictions to MMM models * Drive cross-functional impact - partner with Growth, Product, and Finance to translate business problems into ML solutions * Shape technical architecture - guide MLOps infrastructure, monitoring, and rapid iteration cycles * Stay as hands-on as you choose - modeling, architecture decisions, technical problem-solving; your call how deep you go. WHAT YOU BRING Technical Leadership * 7+ years applied ML experience building and deploying models in production * 4+ years managing technical teams (ML engineers, data scientists, or similar) * Expert knowledge of ML fundamentals: supervised/unsupervised learning, time series; strong grounding in causal inference * Experience with modern ML frameworks (TensorFlow, scikit-learn, CatBoost) Growth & Product Experience * Experience with growth analytics, attribution modeling, or marketing effectiveness * Understanding of user acquisition funnels and retention optimization * Comfortable translating business requirements into technical roadmaps * Strong communication skills - can explain complex models to executive stakeholders Production ML Systems * Experience deploying ML models at scale * Knowledge of MLOps practices: model versioning, monitoring, automated retraining * Understanding of data engineering fundamentals and cloud platforms NICE TO HAVE * Hands-on experience building Marketing Mix Models end to end, Bayesian or regression based * Background in consumer tech, mobile apps, or health tech * Knowledge of privacy-preserving ML techniques and A/B testing methodology How we work We’re a mission-led, product-driven team. We move fast, stay focused and take ownership – from brief to build to impact. Debate is encouraged. Decisions are shared. We care about craft, ship with purpose, and always raise the bar. You’ll be working with people who take their work seriously, not themselves. It takes commitment, resilience, and the drive to keep going when things get tough. Because better health outcomes are worth it.  What you'll get We support impact with meaningful reward. Here’s what that looks like: * Competitive salary and annual reviews * Opportunity to participate in Flo’s performance incentive scheme * Paid holiday, sick leave, and female health leave * Enhanced parental leave and pay for maternity, paternity, same-sex and adoptive parents * Accelerated professional growth through world-changing work and learning support * In-person collaboration and work in a hybrid model, with 3 days per week spent in the office * 5-week fully paid sabbatical at 5-year Floversary * Flo Premium for friends & family, plus more health, pension and wellbeing perks Diversity, equity and inclusion Our strength is in our differences. At Flo, hiring is based on merit, skill and what you bring to the role – nothing else. We’re proud to be an equal opportunity employer, and we welcome applicants from all backgrounds, communities and identities. Read our privacy notice for job applicants.

DEPT

AI Consultant Manchester, London, hybrid DEPT® is a Growth Invention company built to help the world's most ambitious brands grow faster. Operating at the intersection of technology and marketing, our 4,000+ specialists deliver growth invention services across Brand & Media, Experience, Commerce, CRM, and Technology & Data. We're 50|50 tech and marketing, partner-led, and first to move. Clients include Google, Lufthansa, Meta, eBay, and OpenAI. We have been certified B Corp and Climate Neutral since 2021. DEPT®/AI DEPT®/AI has a single mission: to make the best work in the industry using AI. This role sits within our Data & AI practice, with deep expertise in leveraging AI across large-scale transformation programmes. The team includes data strategists, consultants, data scientists, and analysts working alongside DEPT® teams worldwide across services from commerce and full-funnel media to content engineering and operations. You will be solving some of the hardest problems facing some of the best-loved brands in the world. JOB PURPOSE We are looking for an AI Consultant who can create strategic impact with AI, translating complex technology into business value for our clients. You will work with senior stakeholders to define AI strategies, lead transformation programmes, and design scalable AI solutions. This role joins an AI practice that spans EMEA and services clients globally, with a specific focus on expanding our UK&I offering. WHAT YOU'LL DO * Lead AI strategy engagements, discovery workshops, and maturity assessments with enterprise clients across EMEA * Define AI roadmaps and prioritised use case portfolios, anchored in business case and ROI * Design (together with technical experts) and advise on data science and generative AI solutions for complex business problems * Guide clients through AI transformation programmes, from vision to implementation * Advise C-suite and senior stakeholders on AI adoption strategy and organisational change * Bring emerging technology thinking to client conversations and internal teams WHAT YOU'LL BRING * Experience in an AI, data, or technology consulting role, preferably at a consulting firm or digital agency * Strong track record working with enterprise clients, particularly across EMEA markets * Confident working with senior stakeholders, from C-suite to IT product owners and marketing leaders * Ability to build business cases and communicate ROI of AI initiatives * Understanding of AI transformation, change management, and enterprise implementation * Deep understanding of Generative AI, NLP, and MLOps concepts * Familiarity with Python, SQL, and cloud platforms (AWS, Azure, or GCP) is a plus * Analytical, commercially minded, and a strong communicator WE OFFER * A flexible, hybrid working policy (2 days from the office, depending on location) * An excellent salary based on experience and equal pay policies * Pension, free private healthcare, mental health support, and company sick pay scheme * 26 days paid holiday (plus UK Bank Holidays) * Help getting you to work with a season ticket loan and cycle to work scheme * Enhanced family friendly policies to support new parents * Social and Cultural Events, plenty of opportunities to connect with colleagues through organised activities and celebrations * Inspirational Talks, bringing the outside in with regular guest speakers and events * Learning and Development, supporting your growth with continuous opportunities to learn and advance * Buddy Programme: You will be paired with a 'Buddy' to help you through your first weeks at DEPT® * A reputation for doing good. DEPT® has been a Certified B Corp® since 2021 and named 'Agency of the Year' at both The Lovies and The Webby Awards * Awesome clients. Whether big or small, local or global, at DEPT® you'll get the opportunity to work with clients of all sizes and across all industries * The opportunity for possibility. We want to enable you to do what you do best and help you develop your skills further with training, development and certifications * Global annual DEPT® Cares Month in which employees come together and donate their skills to support local charities WHY DEPT®? We are a Growth Invention company built to help the world's most ambitious brands grow faster. Operating at the intersection of technology and marketing, we create what is next by pioneering ideas, acting fast, and moving further because standing still just is not in our DNA. We are drawn to people who stay curious, move with intent, and never stop inventing. Our culture runs on three values: better together, relentlessly curious, and get sh*t done. It is how we work, how we grow, and how we make things that matter. At DEPT®, you will find the freedom to explore, the space to collaborate, and the trust to make a real impact for our clients, for each other, and for the world we are helping to build. DIVERSITY, EQUITY & INCLUSION At DEPT®, we take pride in creating an inclusive workplace where everyone has an equal opportunity to thrive. We actively seek to recruit, develop, nurture, and retain talented individuals from diverse backgrounds, with varying skills and perspectives. Not sure you meet all qualifications? Apply, and let us decide! Research shows that women and members of underrepresented groups tend not to apply for jobs when they think they may not meet every requirement, when in fact they do. We believe in giving everyone a fair chance to shine. We also encourage you to reach out to us and discuss any reasonable adjustments we can make to support you throughout the recruitment process and your time with us.

Ekimetrics

Senior Manager, Data Science & Marketing Effectiveness  (MMM),  London, UK   Ekimetrics transforms how organizations make critical business decisions. Since 2006, we’ve been helping companies build sustained competitive advantage through AI-powered Managed Solutions. Our dual purpose is Competitiveness and Sustainability, because lasting leadership is built on both.   Our solutions are a unique combination of people and technology. We combine our Eki.Decisions platform with embedded experts in marketing, commercial effectiveness, and data science, connecting decisions across business domains to drive real, positive, scalable, and lasting impact.   With a full in-house team and offices in Paris, London, New York, Hong Kong, and Shanghai, we commit to responsibility and frugality in AI, systematically building competitive advantage, and being loyal to our values and DNA.   Your responsibilities    As a Senior Manager in Marketing effectiveness, you will lead multiple high-impact programs for strategic clients, manage multi-account portfolios, and drive both business growth and talent development. You will oversee teams, ensure delivery excellence, and strengthen Ekimetrics’ market position.   More precisely, you will: Strategic Portfolio & Project Leadership   Lead a portfolio of strategic client projects (multi-accounts) or a major regional project under Partner supervision. Define, steer, and monitor strategic project roadmaps leveraging Ekimetrics solutions models and standards. Ensure robust governance: data quality, model accuracy, actionable insights, and on-time, high-value delivery. Pilot portfolio growth, margin, costs, and ROI to meet business objectives. Secure alignment of resources for high-quality delivery in line with Ekimetrics’ strategy. Translate complex analytics into compelling narratives and actionable recommendations for senior stakeholders and C-suite clients. Support clients in optimizing marketing spend, improving segmentation, enhancing campaign performance, and maximizing ROI. Lead contributions to RFPs and pitches, reinforcing Ekimetrics’ commercial visibility. People & HR Leadership   Line manage multiple team members, overseeing performance, conducting regular 1:1s, performance reviews, and talent assessments, while ensuring high-quality delivery, profitability, and client satisfaction. Lead HR and talent development initiatives, including annual talent reviews, career development planning, succession planning, and retention strategies, achieving retention of direct reports. Mentor and coach managers, analysts, and junior staff, promoting knowledge sharing and developing team capabilities. Recruit, align, and develop resources to build high-performing teams, retaining top talent. Encourage collaboration, communication, and high engagement across squads.   Account & Business Growth   Serve as the operational and strategic point of contact for key accounts, maintaining strong long-term client relationships. Identify cross-sell and upsell opportunities and support global account growth strategies. Contribute to the scoping and design of new projects, ensuring business cases align with Ekimetrics capabilities. Represent Ekimetrics externally at conferences, events, and client forums. Track and animate realized client business gains from Ekimetrics partnership, drive a narrative of program value to account stakeholders.   Practice & Thought Leadership   Share and document best practices across the community to promote mastery of delivery. Contribute to building/developing verticals, domains, or leading strategic projects locally or globally. Contribute to upskilling strategies for office teams in client management, PMO, and project leadership. Act as an ambassador of Eki culture role-modelling Ekimetrics’ core values: Curiosity, Creativity, Excellence, Generosity, Enjoyment.   Your profile   Experience & Technical Skills   9+ years’ experience in econometrics, MMM, marketing effectiveness, or data science analytics. Bachelor’s or master’s degree in Statistics, Econometrics, Data Science, Economics, Applied Mathematics, Marketing Analytics, or a related field. Knowledge in Python, SQL, Excel, and visualisation tools; experience with Databricks, Azure, or other cloud/data platforms is a plus. Deep understanding of econometrics, regression, Bayesian statistics, and advanced modelling techniques. Proven ability to handle large datasets, optimise pipelines, and deliver high-quality outputs. Track record of translating complex model outputs into strategic, business-focused recommendations. Fluent English is mandatory.   Client & People Management   Experienced in line management, HR responsibilities, Performance reviews and career development. Proven ability to lead multiple project teams and manage priorities autonomously. Excellent communication, storytelling, and presentation skills for senior stakeholders and C-suite clients. Strategic thinker with strong problem-solving mindset and focus on continuous improvement. Experienced in mentoring, coaching, talent development, and fostering team growth. Skilled in client account management, maintaining relationships, and driving portfolio growth. Contributes to thought leadership and forward-looking perspectives on marketing measurement and MMM.   Soft Skills   Collaborative, proactive, and results-driven. Positive, resilient, and adaptable in fast-paced environments. Curious, creative, and committed to delivering high-quality work   Why join us?   At Ekimetrics, we believe your ideas truly matter. Here, your ideas are yours to build and bring to life. We embrace an entrepreneurial spirit, encouraging you to push boundaries to achieve meaningful impact. But it’s not just about individual success: we thrive on collaboration and enriching one another.   Together, we’re constantly learning and growing, whether through personalized career paths and training, challenging projects, mentorship, or simply through the diverse perspectives we bring to the table.   And perhaps more importantly, we believe in enjoying what we do. Ekimetrics is a stimulating and safe environment where you can thrive as your authentic self.   In 2023, Ekimetrics obtained the “mission-driven company” status, reflecting our strong commitment to CSR.   Our purpose: Accelerate organisations’ transformation towards sustainability through the application of data science and artificial intelligence.   Ekimetrics is part of the French Tech 120 ranking. We have been selected by La French Tech to join the prestigious group of the top 120 French scale-ups, recognised for their potential to become international leaders.   You will have access to: A compensation package from £98,000 + 20% bonus + Corporate bonus 4% matched pension 25 days Holiday + Bank holidays + extra day Tenure leave Private medical care Life insurance Critical illness cover Salary sacrifice bike scheme The Eki.Academy training catalog and certifications  Events and seminars to stay close to your community Light vibrant premises in a central area in the heart of London + many other Ekimetrics benefits   As an employer, Ekimetrics offers equal employment opportunities to all, regardless of gender, ethnicity, religion, sexual orientation, social status, disability, or age. Ekimetrics strives to develop an inclusive work environment that reflects diversity within its teams.