Jannis Pohlmann

Directly responsible for engineering and maintaining the codebase that powers The Graph's indexing and query node. Work encompassed implementing the Graph Node service, integrating data ingestion pipelines from Ethereum and compatible chains, and designing the subgraph manifest/spec features that developers use to define on‑chain data mappings. Delivered production releases, bug fixes and performance improvements that materially affected indexer throughput and query latency. Decisions on data modeling, store schema, entity limitations and query execution strategies influenced how subgraphs are authored and optimized, which in turn changed developer adoption patterns and on‑chain indexing costs. Contributed to open source governance of the project by managing pull requests, defining release processes, and coordinating with other client and tooling contributors. These concrete engineering outputs—repository commits, tagged releases, and public design proposals—shaped operational stability and the protocol’s ability to support high‑volume dApps. Worked closely with ecosystem teams to add chain support, debugging tools and metrics, enabling indexers and developers to deploy and monitor subgraphs reliably. Those integrations and shipped features translated directly into increased network usage and the practical utility of the GRT token in securing indexing services.