Paschal Obba
System Engineer at Cloudflare
United Kingdom
Summary
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Rockstar🎓
Top SchoolPaschal Obba is a systems engineer with nine years' experience building and debugging distributed systems, real-time servers, and networking protocols across startups and high-scale platforms. Currently at Cloudflare, he brings hands-on expertise from prior roles at Ava Labs—where he contributed to AvalancheGo and coreth by improving atomic shared memory, EVM integrations, admin APIs and websocket rate limiting—to practical production systems. He combines low-level systems work (real-time OS and protocol handling) with backend services, DevOps and CI/CD exposure from earlier roles in Node.js, Go, Redis and PostgreSQL. Based in the UK, Paschal is comfortable navigating both blockchain infrastructure and classical server engineering, often focusing on correctness and performance in concurrent environments. Notably, his open-source contributions touch critical pieces of blockchain node implementations, demonstrating an ability to ship reliable, protocol-level changes. Colleagues describe him as a pragmatic engineer who translates protocol research into maintainable production code.
9 years of coding experience
5 years of employment as a software developer
Bachelor of Engineering (BEng), Information and communication Engineering, Bachelor of Engineering (BEng), Information and communication Engineering at Covenant UniversityWASCE, Science, WASCE, Science at Hallel College, Port Harcourt, Rivers state
Stackoverflow
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Github Skills (14)
evm10
database-management10
go10
virtual-machine10
blockchain10
api-design9
protobuffer9
protobuf9
concurrency9
rpc9
websocket8
avalanche8
database7
databases7
Programming languages (10)
Github contributions (5)
ava-labs/avalanchego
Jun 2021 - Jan 2022
Go implementation of an Avalanche node.
Role in this project:
Back-end Developer
Back-end DeveloperContributions:95 commits, 6 pushes, 2 branches in 7 months
Contributions summary:Paschal's commits primarily focus on debugging and refactoring the atomic shared memory component of the AvalancheGo project. The changes involve modifications to the `shared_memory.go` file, specifically regarding the handling of database instances and the optimization of removing multiple elements. They also generated proto files for gsharedmemory to complete RPC interfaces and test the shared memory functionality to ensure correctness.
golangavalanche
ava-labs/coreth
Jul 2021 - Dec 2021
Code and wrapper to extract Ethereum blockchain functionalities without network/consensus, for building custom blockchain services.
Role in this project:Back-end Developer
Back-end DeveloperContributions:21 commits in 4 months
Contributions summary:Paschal primarily contributed to the core Ethereum Virtual Machine (EVM) implementation within the `coreth` repository. Their work included modifying the `vm_test.go`, `vm.go`, `config.go`, `client.go`, and `service.go` files. Specifically, the user focused on adding log level configuration, setting up the admin API, integrating websocket rate limiting, and adjusting EVM functionality, with code modifications for the atomic txs.
consensusethereumavalancheblockchainevm
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