About Kohort Kohort is the leading machine learning platform for mobile gaming user acquisition optimisation and financial planning. We provide game studios with investment-grade LTV predictions using petabyte-scale data and machine learning. We are a group of gaming and data experts from King, Sensor Tower, Tripledot, Mistplay, Bloomberg and Football Radar. Our clients range from large, listed developers and publishers to up-and-coming start-ups building at the cutting edge of mobile gaming. We add value to customers by helping them optimise UA spend on a day-to-day basis and then creating financial plans to accomplish strategic finance goals - from VC raises to IPO prep. Our platform is investment grade; to date, we are the analytics partners of tier-1 VCs such as Index and CVC, and managed $8bn in deal value. Why Kohort Career acceleration: We are accelerating as only a startup can. Join us in a zero-politics, no-drama, high-energy, impact-focused environment on the ground floor. Do the defining work of your career: We are working on a $6bn problem. That’s how much UA spend is wasted in mobile gaming each year. Did that make your blood boil? Sounds crazy? Wasteful? Let’s fix it together. We live and breathe gaming: You’ll get to work with the biggest game studios and on the biggest gaming PE and VC deals. We also, of course, have frequent COD Mobile competitions. Your Role As a Senior Backend Developer at Kohort, you’ll be at the heart of our technology, ensuring that our platform operates seamlessly at scale. You’ll work alongside data scientists, product managers, and fellow developers to build and maintain the robust backend systems that drive our ML-powered analytics. Product Developer: Design and implement complex features, focusing on understanding the customer problem and developing simple solutions. Lead: Take responsibility for scoping, planning and estimating new features and unblocking and enabling the team to deliver quality products Performance Optimization: Identify and resolve backend bottlenecks to build and maintain a high-performing platform. Learn: Proactively grow your knowledge of the game analytics domain and the tech stack we use now and could use in future. We are a pre-Series A startup. So we know our domain and the problem we solve, but we want your help in getting there. Part of this role is being a startup operator, executing your work and helping build the company simultaneously. Requirements Location: Based in London or Cape Town. Hybrid work with 1 day in office, with options for remote work. Experience: 5 years of experience in hands-on backend development. Experience in gaming or Adtech is a bonus. Education: Bachelor’s degree or higher in Computer Science, Engineering or related field. Technical Proficiency: Expertise in one or more modern programming languages (e.g., Python, Java, Go). Considerable experience with data engineering pipelines and API design. Experience with orchestration tools like Dagster and web frameworks like Flask or Django is a bonus. Strong understanding of data-intensive systems, SQL databases both OLTP and OLAP and scalable architectures. Experience with copilots and AI coding assistants and a strong desire to learn how to use them effectively. Good familiarity with container orchestration and cloud platforms. Mindset and Soft Skills: A proactive, self-driven attitude with a penchant for problem-solving in a fast-paced startup environment. A pragmatic, outcome-oriented approach and a passion for clean, maintainable code. Excellent communication and collaboration skills with the ability to work with cross-functional teams and senior management. What you’ll receive Competitive salary Employee Share Scheme Income protection and Life cover Wellbeing rewards Employee Assistance Program