Moritz Zielke
Compiler Engineer at Miden
Berlin, Germany
Summary
🤩
Rockstar🎓
Top SchoolMoritz Zielke is a compiler engineer with eight years of experience building low-level systems for WebAssembly and blockchain runtimes, currently translating Wasm to machine code for a zero-knowledge VM at Miden. He has a strong open-source footprint, contributing to high-profile projects like NEAR (nearcore) and Solana, where his work improved RPC, networking robustness, snapshot integrity, and staking/vote features. Moritz blends compiler internals and practical protocol engineering—he helped add a cranelift backend prototype to generate zk-proofs for Wasm smart contracts—demonstrating experience at the intersection of compilers and cryptography. His background spans backend, full-stack, and automation work in Rust, TypeScript, Go, and WebAssembly tooling, with contributions to Spin’s build and test infrastructure. Based in Berlin, he pairs academic training in CS and finance with hands-on freelance and startup experience, reflecting both product-minded engineering and financial-data tooling roots. Colleagues can expect a pragmatic engineer who moves between deep compiler problems and real-world distributed systems hardening.
8 years of coding experience
9 years of employment as a software developer
BA, Business Administration, BA, Business Administration at University of St.GallenExchange Semester, Exchange Semester at FGV - Fundação Getulio VargasBSc, Computer Science, BSc, Computer Science at Technische Universität BerlinMSc, Finance, MSc, Finance at Università Bocconi
German, English, Portuguese, Spanish
Github Skills (25)
javascript10
spin10
networking10
solana10
web3js10
blockchain10
serverless10
rust10
webassembly10
testing9
path-manipulation9
apidoc9
typescript9
typescript-types9
automation9
Programming languages (6)
Github contributions (5)
near/nearcore
Mar 2022 - May 2022
Reference client for NEAR Protocol
Role in this project:
Back-end Developer
Back-end DeveloperContributions:96 reviews, 9 commits, 59 PRs in 2 months
Contributions summary:Moritz primarily contributed to the core functionality of the NEAR Protocol's `nearcore` repository, focusing on improvements to the RPC interface and network infrastructure. They implemented features to expose epoch information in the `status` RPC endpoint and added an error variant for garbage collected blocks. Furthermore, the user addressed networking issues by mapping blacklisted IPv4 addresses to IPv6 and removing blacklisted peers from the `PeerStore`. These changes enhance the blockchain's data availability and security.
nearprotocolblockchainrustwebassembly
spinframework/spin
May 2022 - Jun 2022
Spin is the open source developer tool for building and running serverless applications powered by WebAssembly.
Role in this project:Back-end & Automation Engineer
Back-end & Automation EngineerContributions:2 reviews, 9 commits, 3 PRs in 18 days
Contributions summary:Moritz primarily focused on improving the build process and testing infrastructure of the Spin project. They added functionality to control the build working directory, enhancing the build command's flexibility and correctness. Furthermore, the user implemented an integration test for `spin build` and made efforts to make the tests OS-independent. They also contributed to the command-line interface, enabling the support of a values file for `spin new` and making other improvements.
serverless-applicationswebassemblyspinserverless
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