Animoca Brands Limited is hiring a

Web3 Protocol Engineer, Moca Network

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, L1↔L2 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 L1↔L2 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.

A Vibrant and Diverse Workplace: Immerse yourself in a dynamic, multi-cultural environment with colleagues from over 15 nationalities (and growing!). We celebrate diversity and foster a global perspective.

Incentives in the Web3 Space: Be a part of the future and align your success with the growth of our innovative projects.

Direct Impact and Flat Structure: Your voice matters. We operate with a flat organizational structure, ensuring your ideas are heard and implemented quickly.

Comfortable and Creative Atmosphere: Embrace a relaxed and productive work environment with casual attire.

Opportunities Across the Ecosystem: Expand your horizons by collaborating with various subsidiary brands within the Animoca Brands network, gaining exposure to a wide range of projects and technologies.

Comprehensive Benefits Package: We care about your well-being. Enjoy a comprehensive benefits package, including medical, life, and transportation allowances.