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madab User

@madabuser

I build high-performance Rust systems, zkVMs, and verifiable databases.

Zimbabwe
Message

I've built correctness-critical infrastructure across Sublinear Labs, Scroll's Ceno zkVM, Dash, and Buycoins. At Sublinear Labs, I lead a three-person team building RAX, a RISC-V-to-x86-64 AOT compiler that reached 6 billion instructions per second and a 450x Ethereum validation speedup.

I've translated zero-knowledge research into practical systems: zkML compiler pipelines lowering ONNX models into GKR circuits, modular GKR/Sumcheck proof infrastructure, Ceno zkVM RISC-V semantics, Poseidon primitives, and BaseFold commitment support. I also built experimental Rust tooling for Sumcheck and GKR, a Circom-to-GKR prover, and technical lecture content for the ZK community.

Earlier, I designed storage proofs and sum trees for Dash's GroveDB, and built fiat-to-crypto settlement and exchange infrastructure at Buycoins using Go, Node.js, GraphQL, PostgreSQL, MongoDB, and AWS.

Experience

Work history, roles, and key accomplishments

SL
Current

Founder / Senior Rust & Systems Engineer

Sublinear Labs

Jan 2025 - Present (1 year 7 months)

Led a 3-person team building RAX, a high-performance RISC-V to x86-64 AOT compiler. Achieved 450x speedup on Ethereum validation and secured a $50,000 award in Polyhedra competition.

Scroll logoSC

Contract ZK Engineer

Jan 2024 - Dec 2024 (11 months)

Architected core RISC-V semantics and memory opcodes for Ceno zkVM, reducing instruction-level proving overhead. Optimized cryptographic bottlenecks by re-implementing Poseidon primitives and engineering batch commitment support.

IN

ZK Researcher

Independent

Jan 2023 - Mar 2024 (1 year 2 months)

Dedicated a year to zero-knowledge research, implementing proof systems from scratch and building experimental Rust tooling for Sumcheck and GKR execution. Developed a Circom-to-GKR prover and produced a ZK lecture series.

Dash logoDA

Protocol Engineer

Dash

Jan 2021 - Dec 2023 (2 years 11 months)

Built GroveDB, a hierarchical authenticated data structure in Rust for cryptographically verifiable storage on Dash Platform L2. Designed the storage proof system and introduced verbose proofs and sum trees.

BU

Senior Backend Engineer

Buycoins

Oct 2019 - Aug 2021 (1 year 10 months)

Engineered Ramp fiat-to-crypto gateway with ~60s settlement times and 100% uptime. Architected SPAN, a P2P fiat settlement network, and collaborated on core exchange infrastructure.

FR

Freelance Backend Engineer

Freelance

Jan 2017 - Dec 2019 (2 years 11 months)

Deployed high-performance Go and Node.js server-side infrastructure for various client platforms and emerging products.

Education

Degrees, certifications, and relevant coursework

University of Lagos logoUL

University of Lagos

Bachelor of Science, Computer Science

2017 - 2021

Pursued a degree in Computer Science, focusing on foundational and advanced topics in computing.

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