freehire launches on Product Hunt on 26 August.

Follow →

Chain Protocol Engineer

Open 61d reposted 4× · 4 open copies

We are hiring for one of our clients. They are a fast-growing Web3 startup rethinking how digital identity and reputation work online. They’re building privacy-first infrastructure that lets users prove who they are and what they’ve done—without giving up personal data. Backed by strong ecosystem partners and a passionate founding team, the company is shaping a more trusted and user-centric internet.

We are looking for a Protocol Engineer to design, implement, and operate the core software of a L1 Chain—focusing on reliability, performance, and the identity‑specific features.

Responsibilities

  • Drive full lifecycle of Cosmos SDK/Tendermint modules: build, customize, and maintain with deep consensus/networking impact.
  • Engineer EVM-compatible capabilities on Evmos—precompiles, fee markets, state logic, and cross-layer behaviors.
  • Implement and run BNB Greenfield storage integrations: permissions, cross-chain flows, and app-level patterns.
  • Manage chain upgrades, hotfixes, and param changes via governance, migrations, and multi-env execution.
  • Own stack reliability: node ops, RPC tuning, indexing, monitoring, alerting, and incident response.

Requirements

  • Expert Golang in Cosmos/Tendermint; mastery of state machines and consensus.
  • Deep Evmos EVM proficiency: precompiles, opcodes/gas, JSON-RPC, cross-compat.
  • Hands-on with Greenfield SDKs/APIs, ACLs, and chain/contract integration patterns.
  • Strong in Docker/K8s, CI/CD, IaC for chain infra; plus node ops (pruning, sync, RPC).
  • Rigorous testing (simulations, property-based, upgrade rehearsals) and observability (Prom/Grafana, traces, playbooks).

What this application asks

greenhouse

First Name, Last Name, Email, Phone, Resume/CV, Cover Letter

  • Preferred First Name optional
  • Website optional
  • LinkedIn Profile optional
  • Notice Period
  • Current Annual Salary (with Currency)
  • Expected Annual Salary (with Currency)
  • Working Location choose any
  • Do you have any Web3 experience? choose one
  • Web3 Vertical Experience choose any
  • Any personal experience in Web3 (e.g. side project, personal investment) if no professional experience. written answer

See also

Tailor your CV for this role?

We couldn't check your fit for this role — add a CV to your profile to see it next time.

A new version of freehire is available