Smart Contract Engineer

About Us

RegistryChain is building the trust-neutral social fabric through universal verified facts (Entity.ID) and the compilation of legally binding agreements into computationally binding ones.

We enable normies to collaborate across the globe by co-founding ventures in a predictable, trustless way; households to protect family rights independently of states and governments; and society to navigate relationships with frontier entities — DAOs, AI agents, humanoids, and autonomous systems — while safeguarding social order in an evolving world.".

The problems we work on sit at the intersection of law, cryptography, artificial intelligence, political science, governance, and social systems. We build real-world applications on blockchain while abstracting the blockchain away entirely, enabling trustless collaboration with institutional reliability.

This work demands rigor, taste, and a willingness to take responsibility for long-lived infrastructure. We’re looking for fundamental thinkers willing to stretch their limits and build things meant to outlive hype cycles.

About You

You are a Solidity-first smart contract engineer who enjoys working close to the EVM, where correctness, security, and long-term maintainability matter more than clever abstractions.

You have strong proficiency in Solidity (≥0.8.x) and a deep understanding of Ethereum’s execution model, including storage layout, gas mechanics, access control, and upgrade patterns. You’re comfortable reasoning about invariants, edge cases, and failure modes, and you write contracts intended to be long-lived, audited, and relied upon in production.

You are fluent with modern Ethereum development workflows and tooling, including Foundry and/or Hardhat, and familiar with security and analysis tools such as Slither, Echidna, and audit-driven review processes. You value testing, documentation, and clear reasoning as much as implementation.

You are fluent — or eager to become fluent — in the emerging AI agent identity stack. RegistryChain anchors agents to responsible humans through a Know-Your-Agent (KYA) framework, and we work directly across the standards shaping this space: ERC-8004 (identity, reputation, and validation registries for trustless agents), A2A, MCP , and x402 You should be comfortable reasoning about agent attribution chains, on-chain identity primitives for non-human actors, and the tradeoffs between on-chain anchors and off-chain agent cards.

Nice to have (not required):
Experience with Solana development — Anchor/Rust, the SPL token program, Squads multisig, and cross-chain messaging via Wormhole, LayerZero, or CCTP. RegistryChain's registrar model is chain-agnostic by design, and Solana is on the roadmap as a first-class deployment target.

Other valued experience: ENS or ENS-like naming systems, off-chain resolvers, indexers, or oracle-assisted resolution (CCIP-Read, ENSIP-10), ERC-6551 token-bound accounts, ERC-4337 account abstraction (Kernel/ZeroDev, Safe), Vyper, ability to read Yul or inline assembly, prior work on DAO frameworks or registry protocols, exposure to audits or formal verification, open-source protocol contributions, or a background spanning protocol engineering and applied research.

You’ll Do

You will architect and sustain the core smart contract infrastructure that governs the lifecycle and agency of legal, civil, and frontier entities. This involves engineering robust entity accounts (ERC-6551), trustless registries, and modular governance systems for on-chain membership, voting, and the programmatic enforcement of civil amendments and compliance.

You will take ownership of the agent attribution layer, implementing ERC-8004 registries and designing identity primitives within our KYA framework to ensure autonomous agents remain reliably anchored to human responsibility.

As we expand our footprint, you will refine the cross-chain registrar architecture, ensuring that Entity.ID maintains a single, verifiable source of truth across EVM and non-EVM ecosystems alike.

Your role is to translate complex social and legal frameworks—ownership, accountability, and decision-making—into computationally binding code. You will build secure, attestation-aware systems designed to serve as long-lived, upgradeable infrastructure for the trust-neutral social fabric.

You’ll Get

In addition to salary, early-stage equity, a flexible remote work environment built on autonomy and trust, and direct impact building core Web3 protocols that solve real-world problems for the next generation of the trust-neutral social fabric.