
Zopa · London
About the team: We are on a mission to level-up the mobile app. You will join our Mobile Platform team which looks after tech underpinning the app itself: ...
We are on a mission to level-up the mobile app.
You will join our Mobile Platform team which looks after tech underpinning the app itself: from the app’s architecture, shared capabilities and libraries and experiences, as well as the build and analytics infrastructure. The team plays an important role as thought leaders in the broader mobile community at Zopa, and is responsible for moving our tech forward in that space.
The company has the vision to become Britain’s best bank and have just launched the Zopa account which is a high touch, mass-market product. The app is our most important touch point with the customer and it needs to be performant and delightful. It is a pillar for the technical strategy at Zopa and this team will play a prominent role at the heart of that strategy. The app is today built using React Native but increasingly we are leveraging native capabilities (Swift and Kotlin) to significantly overhaul the app experience.
About the team: At SumUp, we're on a mission to bring merchants and consumers closer together and help local communities thrive. With SumUp Consumer, we're building a rewarding banking experience that connects people to the small businesses they love while enabling free transactions for our merchants. SumUp Consumer helps consumers manage their money with ease and get more from everyday spending. It offers seamless payment experiences and financial tools designed for modern life—spanning banking, cards, savings, and open banking. This is a high-impact Engineering Manager role where you'll lead a cross-functional team of backend, iOS, and Android engineers building the systems and experiences that power SumUp Consumer. You'll be responsible for the reliability, quality, and pace of delivery across features that consumers interact with every day—while growing a team that takes real ownership of what they ship. You'll work closely with Product and Design to turn ambitious ideas into production-grade products, and you'll help shape the technical direction of a consumer experience that's still defining itself. This is a role for someone who stays close enough to the technology to make good calls, and cares enough about people to make the team genuinely good at what they do. What you’ll do: * Lead and build a high-performing team by coaching, mentoring, and supporting engineers in their growth and development. * Stay hands-on with technology—contributing to system design, reviewing code, and guiding technical decisions to ensure high-quality, scalable solutions. * Partner closely with Product and Design to define goals, translate user needs into technical solutions, and deliver impactful features. * Drive execution and delivery, balancing speed and quality while ensuring reliable and scalable backend systems. * Collaborate cross-functionally with engineering, product, and business teams to align priorities and make thoughtful trade-offs. * Shape the engineering culture by promoting best practices, ownership, and continuous improvement. * Advocate for the user, ensuring we build products that truly improve the experience for local merchants and consumers. You’ll be great for this role if you have: * A strong backend or mobile engineering background, with hands-on experience building distributed systems, APIs, and scalable services. * Proven experience as an Engineering Manager (2+ years), with a track record of leading, mentoring, and growing high-performing engineering teams. * A hands-on mindset—you enjoy staying close to the code, contributing to technical decisions, and tackling complex challenges, not just managing from a distance. * Experience with modern technologies such as Go, Kotlin, Python, or similar, along with cloud-native environments (e.g., AWS, Docker, Kubernetes) or relevant mobile engineering tools. * A product-oriented approach, with the ability to make pragmatic decisions and thoughtful trade-offs in a fast-paced environment. * Strong communication skills, with the ability to bring clarity, alignment, and influence across both technical and non-technical stakeholders. * An empathetic leadership style, with a focus on team well-being, continuous feedback, and professional growth. * Adaptable and action-oriented, comfortable navigating ambiguity and shifting priorities with confidence. Why you should join SumUp: * Opportunity to work with a truly global, multicultural team from our central London Bridge location, wrapped in historic charm and modern flair. This involves an office-first setup * Commitment to Diversity and Inclusion: be part of a workplace that values and promotes diversity, fostering an inclusive environment where everyone's perspectives are respected and embraced * Enrolment onto our VSOP program: you will own a stake in SumUp’s future success * Generous time off: enjoy 28 days of paid leave, plus bank holidays and special leaves * Health matters: Vitality health cover, including optical and dental * Life made easier: salary-sacrifice commuter benefits via Gogeta * Financial security: retirement scheme (SumUp matches 7% when you contribute 5%) * Peace of mind: life insurance from MetLife for 2× your salary * Break4me: 1-month sabbatical after 3 years of service * Referral Bonus: earn additional rewards by referring talented individuals to join the SumUp team About us: Be empowered to do more that matters. At SumUp, we're on a mission to empower small businesses across the globe by providing simple and affordable tools that allow them to thrive. Today, over 4 million businesses in 36 markets rely on SumUp as their financial partner to manage payments, finance and customer relationships. Our commitment to small businesses is reflected in our diverse team of over 3,000 SumUppers from over 90 nationalities, united by global collaboration and an innovative mindset. Our core values lay the foundation for who we are and what we stand for, shaping our work culture and driving our success. We foster inclusivity and a continuous learning culture, providing a safe space for personal and professional growth. Our differences make us unique and strong as we strive to create an environment where everyone belongs and feels supported, no matter how they identify. SumUp is proud to be an Equal Employment Opportunity employer, actively seeking and embracing diversity in our workforce. We don't make hiring or employment decisions based on race, colour, religion or religious belief, ethnic or national origin, nationality, sex, gender, gender identity, sexual orientation, disability, age or any other basis protected by applicable laws or prohibited by company policy. Our commitment extends beyond recruitment to creating a safe and respectful workplace where harassment of any form is strictly prohibited. Explore career opportunities with us and join a team driven by collaboration, innovation, and a shared vision of creating a world where everyone can build a thriving business. Discover more about our vibrant and inclusive work culture and how we work on our careers website, and follow our journey on LinkedIn and Instagram. Job Application Tip We recognise that candidates feel they need to meet 100% of the job criteria in order to apply for a job. Please note that this is only a guide. If you don’t tick every box, it’s ok too because it means you have room to learn and develop your career at SumUp.
Head of Mobile Engineering Why Valtech? We’re the experience innovation company - a trusted partner to the world’s most recognized brands. To our people we offer growth opportunities, a values-driven culture, international careers and the chance to shape the future of experience. The Opportunity: At Valtech, you'll find an environment designed for continuous learning, meaningful impact and professional growth. We're looking for a senior mobile leader to define and evolve our mobile capability in the UK, partnering with clients and multidisciplinary teams to deliver exceptional digital experiences at scale. This role combines technical leadership, consulting, capability development and commercial impact. You will work with some of the world's leading brands to shape mobile strategies, modernise platforms and drive innovation across native and cross-platform ecosystems. The Role: You'll work alongside multidisciplinary teams of architects, engineers, strategists, designers and consultants, helping clients define and deliver world-class mobile experiences. This is both a leadership and hands-on consulting role. You'll provide technical direction, advise clients on platform strategy, support business growth and help build a thriving mobile capability across Valtech. You will operate across strategy, architecture and delivery, bringing together engineering excellence, customer experience and commercial thinking. We operate across sectors including financial services, retail, automotive, healthcare, media and consumer brands. Each presents different technology landscapes, constraints and transformation ambitions. Mobile experiences increasingly sit at the centre of customer engagement. We design scalable, secure and high-performing platforms that enable organisations to deliver connected and intelligent digital experiences. This role will be 60% client strategy & delivery, 40% operational & capability leadership and growth. What Success Looks Like: * A thriving and scalable mobile capability. * Strong technical communities and engineering standards. * Trusted client relationships and strategic influence. * Growth in mobile opportunities and revenue. * High-performing teams delivering exceptional experiences. * Continued innovation across mobile and emerging technologies. Role Responsibilities: Client Delivery Leadership * Act as a trusted advisor to senior client stakeholders. * Provide senior oversight on complex deliveries. Have the awareness to step in early to protect outcomes, people and client relationships. * Be a bridge across disciplines to solve end-to-end problems and create coherent ways of working. * Track and report on the health of the practice. This might include capability coverage (aligned to demand), community engagement, delivery quality, and act on the signals. * Lead workshops and shape mobile transformation roadmaps. * Guide platform modernisation and architecture decisions. * Partner with Product, Design, Data and Engineering teams to deliver integrated solutions. * Influence strategic technology investments. Capability Leadership * Define and evolve Valtech's mobile vision and strategy, and grow our mobile engineering capability. * Have accountability for line management in the practice and line managers will report to you. You will ensure standards and cadence for 1:1s and growth conversations, calibrate performance, manage succession, lead difficult conversations, and coach managers so the whole system gets better. * Coach new leaders. Give them real opportunities and feedback so they lead with consistency, confidence, and care. * Influence our career pathways and skills framework. You will make progression transparent and support through coaching, mentoring, and effective management. * Establish engineering standards and best practices. * Foster communities of practice and mentor engineers and architects. * Sponsor innovation with purpose from small practice experiments to thought leadership (talks, blogs, whitepapers) that help evolve our capability, win new work and influence our clients’ strategy. Technical Leadership * Provide architectural oversight across complex mobile programmes. * Drive approaches across iOS, Android and cross-platform technologies. * Ensure solutions are scalable, secure and resilient. * Champion modern engineering practices including CI/CD, observability and automation. * Explore emerging technologies including AI-enabled experiences and intelligent assistants. Commercial Impact & Growth * Partner with UK Growth teams on pitches and pre-sales work bringing an authentic and credible craft perspective to exec-level conversations backed by real-world experience. * Support UK strategic initiatives, ensuring the practice’s work aligns with wider business priority. * Contribute to proposals and solutioning efforts. * Identify growth opportunities to expand client engagements. * Represent Valtech externally through thought leadership and industry engagement. * Help strengthen Valtech's position as a leader in digital experience and mobile innovation. Must have Qualifications: Leadership * Experience leading mobile engineering teams, practices or capabilities. * Strong consulting and stakeholder management skills. * Ability to influence senior business and technology leaders. * Passion for coaching and developing talent. Technical Expertise Experience across: * Native mobile development (iOS and/or Android) * Cross-platform technologies such as Flutter or React Native * Mobile architecture and platform strategy * API-driven ecosystems * CI/CD and DevOps practices * Security, identity and authentication * Analytics and observability * Cloud-native platforms and backend integration Consulting Experience * Experience delivering within consulting, agency or digital transformation environments. * Comfortable operating across strategy, architecture and delivery. * Experience leading client engagements and workshops. * Strong communication and presentation skills. * Commercial awareness and experience supporting growth initiatives. Nice to have Qualifications: * Experience with AI-powered mobile experiences and agentic AI. * Knowledge of modern data and personalisation platforms. * Experience leading globally distributed teams. * Public speaking, thought leadership or contributions to the wider technology community. Commitment to reaching all kinds of people We design experiences that work for all kinds of people - and that starts with our own teams. At Valtech, we’re intentional about building an inclusive culture where everyone feels supported to grow, thrive and achieve their goals. No matter your background, you belong here. Explore our Diversity & Inclusion site to see how we’re creating a more equitable Valtech for all.
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 As Senior Product Manager for Predictive Growth at Flo, you'll own Flo's predicted Lifetime Value (pLTV) platform across iOS, Android, and Web. pLTV is the shared signal behind UA bidding, budget allocation, creative-testing prioritisation, finance forecasting, and roadmap decisions across the organisation — making it one of the highest-leverage PM roles in growth. You'll work with a team of data scientists, machine learning engineers, and data engineers running Flo's production pLTV models across short-horizon (intra-day) and long-horizon (M15+) predictions. You'll drive accuracy improvements, expand signal coverage across platforms, and extend pLTV's reach into new decision domains. You'll also help scale Flo's in-house agentic experimentation system — already delivering 30%+ quality gains — and contribute to the next generation of Flo's marketing measurement stack, including Marketing Mix Modeling and incrementality testing. This is a senior IC role with company-wide visibility, partnering with leadership across User Acquisition, Finance, Analytics, and Engineering. It's equally hands-on in delivery: co-leading the team day-to-day with your engineering manager pair, writing the specs, defining the epics, staying close to the work. Your Experience Must have: * Proven experience owning machine-learning or data-driven products in production — predictive scoring, propensity, ranking, forecasting, or similar data-rich products. Strong fit for current Product Managers; also open to Engineering Managers, ML Engineers, or tech leads who have shaped product direction end-to-end and are ready to make the switch into a PM seat. * Hands-on delivery instincts — equally comfortable in Jira (writing specs, defining epics, refining the sprint backlog, unblocking the team) as in strategic planning and stakeholder management. Co-leads the team day-to-day with your engineering manager pair. * Hands-on partnership with data science and machine-learning engineering teams — partnering on model evaluation, retraining cadence, feature decisions, and release discipline. * Strong analytical fluency — SQL proficiency, comfort interpreting model evaluation metrics, and the habit of interrogating performance at segment, cohort, and campaign level rather than blended aggregates. * Demonstrated ability to influence senior cross-functional stakeholders across marketing, finance, analytics, and engineering — translating technical model behaviour into commercial decisions. * Comfortable in fast-paced, ambiguous environments — balancing platform investments against fast-cycle experimentation, with shifting priorities and competing demands. Nice to have: * Working knowledge of mobile and web user acquisition — how bidding, attribution, and campaign optimisation actually work, including privacy frameworks such as SKAN/ATT or Privacy Sandbox. * Hands-on experience with mobile attribution platforms (AppsFlyer, Adjust, Branch, Firebase) and modern measurement frameworks (SKAdNetwork, GA4). * Exposure to Marketing Mix Modeling, incrementality testing, holdout design, or causal inference techniques. * Familiarity with feature stores (Databricks, Tecton, Feast) and modern MLOps tooling. * Subscription-app, health & wellness, or femtech domain background. * Exposure to agentic AI or LLM-orchestrated workflows for ML experimentation, research, or model evaluation. What you'll be doing You'll be responsible for: * Owning Flo's pLTV product roadmap end-to-end across iOS, Android, and Web — driving accuracy improvements, expanding feature coverage, extending prediction horizons, and pushing pLTV into new decision domains (creative testing, product roadmap, pricing, hypothesis validation) alongside its existing UA and Finance use cases. * Partnering with data scientists and engineers on feature strategy — deciding which inputs the model consumes and ensuring those features are available reliably in production. * Operating rigorous release discipline — gated rollouts, shadow-mode evaluation, drift detection, automated retraining, and post-launch calibration — so production models stay accurate as data distributions and platform policies evolve. * Working closely with data scientists and analysts to investigate model quality issues — country-level miscalibration, cohort drift, signal anomalies — and feeding findings back into the next iteration. * Helping scale Flo's agentic ML experimentation system from hundreds toward thousands of model runs — compounding quality gains back into production. * Acting as the primary product partner to User Acquisition leadership — translating model behaviour into bidding decisions, framing trade-offs, and aligning on attribution-window strategy. * Reporting model performance and strategic recommendations into monthly leadership reviews and quarterly investment decisions. * Contributing to Flo's next-generation measurement stack — including Marketing Mix Modeling, incrementality testing, and causal lift methodology — so marketing investment decisions are grounded in causal, not correlational, signal. #LI-Hybrid #LI-AJ1 Annual Salary Range (ranges may vary based on skills and experience) £92,000—£115,000 GBP 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.