Lead Blockchain Engineer Job at Stellent IT LLC, Remote

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  • Stellent IT LLC
  • Remote

Job Description

Role: Lead Blockchain Engineer (Full-Stack Web3)

Location: Remote

Duration : Contract 12months(extendable)

Role Overview

We are seeking a Lead Blockchain Engineer with strong hands-on smart contract experience and solid React/Web3 frontend skills.

This role is blockchain-first: you will own the design, implementation, and security of smart contracts that manage real financial value. In parallel, you are expected to be comfortable building and maintaining the React + TypeScript frontend that interacts with these contracts.

This is a hands-on leadership role for someone who understands both protocol logic and user-facing Web3 workflows.

Key Responsibilities

Blockchain & Smart Contracts (Primary)

- Design, implement, and maintain Solidity smart contracts governing:

* Savings circle lifecycle (creation, joining, activation, completion)

* ERC20 stablecoin flows (approve, transferFrom, payouts

* Cycle-based state machines and automated payouts

* On-chain reputation tracking

- Ensure contract correctness, safety, and gas efficiency.a

- Write and maintain unit and integration tests for smart contracts.

- Identify and mitigate common blockchain risks (reentrancy, state corruption, token misuse).

Frontend & Web3 Integration (Required)

- Build and maintain React + TypeScript interfaces that:

* Interact with smart contracts via Web3.js or Ethers.js

* Handle wallet connections, approvals, and transaction flows

* Present on-chain state clearly to users

- Implement reliable UX for asynchronous blockchain actions:

* Pending transactions

* Error handling

* State refresh after confirmations

- Collaborate on frontend architecture to keep contract interfaces clean and stable.

Technical Leadership

- Lead blockchain-related architectural decisions.

- Review PRs across smart contracts and Web3 frontend code.

- Mentor engineers on blockchain best practices and Web3 UX patterns.

- Work closely with the CTO on protocol design and roadmap planning.

Required Qualifications (Must-Have)

- Strong production-level experience with Solidity.

- Deep understanding of ERC20 tokens, allowances, and stablecoin workflows.

- Experience designing stateful smart contracts handling financial logic.

- Hands-on experience with React + TypeScript.

- Experience integrating frontend apps with blockchain via Web3.js or Ethers.js.

- Familiarity with Hardhat or Foundry.

Candidates without real smart-contract experience are not a fit for this role.

Nice-to-Have

- Experience with Layer-2 networks (Polygon, Base, Arbitrum, Optimism).

- Familiarity with smart contract audits or security reviews.

- Knowledge of DeFi or financial primitives.

- Experience designing upgradeable or modular contract systems.

- UX sensitivity around blockchain transaction flows.

What Success Looks Like

- Smart contracts are secure, auditable, and easy to reason about.

- Frontend integrations are robust and user-friendly.

- Engineers ship features confidently without introducing protocol risk.

- Blockchain architecture scales with product growth.

Sandip Kumar
Sr. Tech Recruiter

Email:
sandip@stellentit.com

Address:
505 Knolle Court
Saint Augustine, FL 32092

Telephone:
+1 321-641-0093

Job Tags

Contract work, Remote work,

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