Chain Protocol Engineer, Moca Network

Overview We're hiring a Protocol Engineer to design, implement, and operate the core software of the Moca Chain—focusing on reliability, performance, and the identity-specific features of our L1. You'll work on client/runtime components, networking, cross-chain identity flows, and ZK integrations that enable private verification at scale. You'll partner with protocol researchers, ZK engineers, and infra/DevOps to run testnets, ship upgrades, and launch features like zkTLS proofs, verifiable credential issuance/verification, and our identity oracle. Responsibilities Build features in the node/client: execution/runtime, mempool, sync, and networking Implement identity-centric primitives (credential issuance/verification hooks, precompiles/syscalls as needed)Optimize state I/O, snapshots, pruning, and fast/warp sync; improve RPC throughput and p95 latency Integrate zero-knowledge proof verification in-protocol (e.g., verifier circuits, precompiles)Support zkTLS proof ingestion and verification for web-origin attestations Contribute to the chain-agnostic identity oracle: message formats, replay/order protection, finality handling Build/maintain light-client/optimistic verification paths or integrate with ecosystem standards (e.g., IBC/ICS, L1L2 messengers) as appropriate Design robust relayer and operator tooling with clear incentives and observability Engineer decentralized data storage integration for reusable, privacy-preserved credentials Tune RocksDB/LevelDB (or equivalent) and state commitment schemes for high throughput identity verification Stand up and operate public/private testnets; plan releases and canary rollouts Add metrics/logs/traces; build dashboards and alerts; respond to incidents and write clear postmortems Expand test coverage: unit/integration, fuzzing, and differential tests across client versions Requirements Strong systems engineering in Go or Rust (or similar); solid concurrency/async, profiling, and performance tuning skills Experience building backend or protocol-adjacent infrastructure that runs in production Practical familiarity with blockchain client internals (any of: EVM/WASM runtime, Cosmos SDK/Substrate modules, or rollup nodes)Comfortable with Web3 interfaces and ops: RPCs (JSON-RPC/gRPC), node configuration, validator/sequencer operations, snapshots/state sync Sound engineering practices: testing, code reviews, CI/CD, reproducible builds, and clear documentation Security mindset: input validation, DoS/eclipse awareness, rate-limiting, key management basics Nice-to-haves Zero-knowledge integration experience (using/verifying proofs, e.g., PLONK/Groth16/FRI) or prior work on verifier precompiles Exposure to identity/credentials standards (VCs/VPs), replay protection, nonce/sequence management, and capability/permissions models Cross-chain experience: light clients, optimistic/validity bridges, IBC/XCM, or L1L2 messaging Database/storage tuning in high-throughput chains; experience with state growth and archive modes Contributions to open-source blockchain clients or identity/zk tooling The Perks of Joining Animoca Brands A vibrant and diverse workplace: multicultural environment with colleagues from many nationalities Incentives in the Web3 space: be part of the future and align your success with project growth Direct impact and flat structure: your ideas are heard and implemented quickly Comfortable and creative atmosphere: relaxed and productive work environment Opportunities across the ecosystem: collaborate with subsidiary brands within the Animoca Brands network Comprehensive benefits package: medical, life, and transportation allowances Personal Information Collection Statement Personal data provided by the Job Applicant will be used strictly in accordance with the Employer's Personal Data Policies, a copy of which will be provided immediately upon request. All classified data will be treated confidentially within the Human Resources & Administration Department. Personal data of unsuccessful applicants may be retained for up to 3 months. Seniority level Not Applicable Employment type Full-time Job function Information Technology Industries: Technology, Information and Internet #J-18808-Ljbffr