Friedemann Fürst
Software Engineer at Chainlink Labs
Frankfurt, Hesse, Germany
Summary
🤩
Rockstar🎓
Top SchoolFriedemann Fürst is a backend software engineer based in Frankfurt with five years' experience building low-latency, production-grade systems for crypto and financial markets. He specializes in Go and has deep expertise integrating WebSocket, REST and gRPC APIs, stream-processing market data, and operating cloud-native stacks with Kubernetes, PostgreSQL and Prometheus. At Blocksize he led development of multi-exchange trading and data platforms that aggregate liquidity across eight blockchains, and he now focuses on blockchain integrations at Chainlink Labs where he contributed zkSync support to the widely used Chainlink oracle node. Comfortable working across infrastructure and protocol layers, he blends practical engineering with a strong interest in Web3 and EVM ecosystems. A background in business informatics helps him translate market requirements into auditable, low-latency systems for real-time price feeds and execution.
5 years of coding experience
4 years of employment as a software developer
Bachelor of Science - B.Sc., Business Informatics, Bachelor of Science - B.Sc., Business Informatics at Frankfurt School of Finance & ManagementStudy Abroad Programme, General Studies, Study Abroad Programme, General Studies at National University
Github Skills (7)
zksync10
error-handling10
go10
solidity10
ethereum10
blockchain10
testing9
Programming languages (7)
Github contributions (5)
smartcontractkit/chainlink
Aug 2023 - Feb 2025
node of the decentralized oracle network, bridging on and off-chain computation
Role in this project:
Back-end Developer
Back-end DeveloperContributions:60 reviews, 30 PRs, 82 pushes in 1 year 6 months
Contributions summary:Friedemann's primary contributions focused on adding support for zkSync within the Chainlink network. This involved implementing custom error messages, defining chain-specific types, and modifying existing error handling logic to accommodate zkSync transactions. They also contributed to tests and documentation updates related to the zkSync integration and made further adjustments by bumping libocr. Additionally, the user made improvements to error classification to handle "known transaction" errors, which are specific to zkSync.
golangcomputationethereumblockchaindecentralized
friedemannf/homebridge-mqtt-eve
Feb 2023 - Nov 2024
Contributions:2 PRs, 9 pushes, 2 branches in 1 year 9 months
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