Full-Stack Blockchain Engineer

Senior Blockchain Architect / Full-Stack Blockchain Engineer

Engagement Type:

Delivery Model:

Duration:

• MVP / PoC: 12–16 weeks
• Post-Deployment Support: 6–12 months

• Location:

  Remote / Hybrid

Role Summary

Senior Blockchain Architect / Full-Stack Blockchain Engineer

end-to-end technical ownership

Key Responsibilities

1 Architecture & Network Design

• Design and implement a

  Polygon PoS–based architecture

  with a

  permissioned or hybrid execution layer

  suitable for enterprise use cases.
• Define validator strategy, access control, governance models, and network security.
• Ensure scalability, fault tolerance, and production-grade reliability.

2 Smart Contract Engineering

• Design, develop, and deploy

  Solidity-based smart contracts

  using

  ERC-721 and ERC-1155 standards

  .
• Implement upgradeable and modular contract patterns (e.g., proxy-based architectures).
• Define token lifecycle logic, role-based permissions, metadata standards, and administrative controls.
• Support internal reviews and external security audits.

3 Backend & Integration Layer

• Build and maintain

  API services

  to facilitate blockchain interaction and off-chain integrations.
• Integrate with:
• Identity and access management systems
• Enterprise databases and services
• External platforms and tooling (as required)
• Implement secure transaction orchestration and key management practices.

4 Frontend / DApp Enablement

• Collaborate with frontend engineers to support

  DApp and admin interface development

  .
• Ensure seamless smart-contract interaction for operational and administrative workflows.
• Enable role-based dashboards and system-level controls.

5 Delivery, Documentation & Collaboration

• Work closely with project managers and stakeholders to:
• Break down the scope into

  incremental, component-based phases

Contribute to:

• Effort estimation and module-wise scoping
• SOW structures and phased rollout planning
• Architecture and system-design documentation
• Provide post-deployment support and enhancement guidance.

Required Skills & Experience

Technical Expertise

• 6+ years of backend or full-stack engineering experience
• 3+ years of hands-on blockchain development experience
• Strong proficiency in:

• Solidity

• ERC-721 / ERC-1155 standards

• Polygon PoS or Ethereum-compatible L2 ecosystems
• Deep understanding of:
• Smart-contract security patterns
• Gas optimization techniques
• Upgradeability frameworks (e.g. OpenZeppelin, UUPS)
• API development using Node.js, Python, or equivalent
• Experience with Web3 libraries such as ethers.js or web3.js

Enterprise & Delivery Experience

• Proven experience delivering

  MVP / PoC solutions within 12–16 week timelines

• Ability to clearly document:
• Technical assumptions and exclusions
• Module-wise effort allocation
• Architecture and system flows
• Experience supporting

  multi-phase rollouts

  and long-term platform support
• Comfortable working within

  in-house, distributed engineering teams