The UN Environment Programme's International Methane Emissions Observatory (IMEO) is a data-driven, action-focused initiative that drives deep reductions in methane emissions- the second biggest contributor to global climate change and a key opportunity to reduce warming in the near-term. IMEO's mission is to provide the open, reliable, and actionable methane data needed to cut emissions at the speed and scale necessary to achieve the Paris Agreement goals. To do this, IMEO is harnessing a methane data revolution under way thanks to rapidly advancing technology and momentum for methane action. IMEO collects, integrates, and reconciles data from methane-detecting satellites, scientific measurement studies, rigorous industry reporting through the Oil and Gas Methane Partnership 2.0 (OGMP 2.0), and national emissions inventories. These initiatives are game-changers for climate action - and as a core implementing partner of the Global Methane Pledge, IMEO is shaping the future of methane mitigation. IMEO's Eye on Methane data platform delivers this reliable and actionable date through a suite of tools, ranging from public-facing to customized, log-in based tools for power users. The IMEO Eye on Methane data platform Lead Developer will play a central role in designing, building, and maintaining the Eye on Methane platform - UNEP's flagship hub for authoritative methane emissions data. This role is both hands-on and collaborative: leading by example in code, ensuring technical excellence, and unblocking the team as they deliver new features, datasets, and tools that help governments, companies, and civil society act on methane. The role will report to the Data practice & IT Lead and the Product Officer.