Senior Mobile Engineer (Flutter)North London (Hybrid- 4 days onsite)£100,000-£135,000 + Generous Equity + Strong PackageSeries A | High-Growth TechWe're partnered with one of Europe's fastest-scaling technology start-ups, fresh off a major Series A raise and building at extraordinary pace.This is not a typical mobile feature delivery role. This is an opportunity to help redefine how goods move in the digital economy- working at the intersection of mobile engineering, machine learning, and real-world operational systems.The TeamClose to 100 people globally and will be looking to almost double the team in 2026More than half in Engineering, Product and DataCulture built around experimentation, high standards and rapid feedback loopsYou'll work closely with senior engineering leadership who have previously scaled large distributed systems and ML-driven platforms at global technology companies.Tech EnvironmentCross-platform Flutter applicationsWill consider anyone from a native iOS/Android background who is happy to work in FlutterBackend systems built in Python, Rust and TypeScriptCloud-native architecture on GCP (BigQuery, Cloud Run)Extensive use of ML modelling and LLM inferenceRobotics and IoT integrations across operational workflowsWhat You'll DoTake ownership of mobile engineering end-to-end using FlutterWork across the broader stack, from mobile through to data infrastructureSolve complex real-world problems (for example, computer vision for proof-of-delivery validation)Spend time in the field to understand how your technology impacts couriers and customersShip quickly, iterate frequently, and continuously improve performance and user experienceThis is a high-autonomy, high-impact role suited to engineers who thrive in fast-moving, intellectually rigorous environments.Who This Role SuitsYou are likely to succeed here if you:Enjoy working in a fast paced environment (Startup/scaleup vibes)Define problems clearly and measure impact rigorouslyEnjoy tackling complex technical challengesMove quickly and embrace iterationTake ownership from start to finishValue high standards and candid feedbackWant to build technology that operates in the real world, not just on a screenPackage£100k-£135k base salary (depending on experience)Very competitive equity package with annual top upsBupa private medicalGym Membership25 days of holidayEnhanced Parental LeaveFully paid for team socialsHybrid working (4 days onsite in North London)Opportunity to join at a critical scale-up inflection pointHiring Process (Typically Completed Within 1-2 weeks30-minute Talent Screening1-hour tech interview2-hour design interview1-hour team & culture fit interviewIf you are a Senior Mobile Engineer looking to build apps that reshape an industry, this is a rare opportunity.JBRP1_UKTJ