Blockchain Engineer

Blockchain Engineer (Java / )

Location:
Doha/KSA

Industry:
Financial Services / Digital Assets / Technology

Type:
Full-time

About the Role

We are seeking a
Blockchain Engineer
with a solid background in
Java or
and hands-on experience in smart contract development, distributed systems, or blockchain integrations. The ideal candidate has exposure to
enterprise-grade or permissioned blockchain platforms
and can operate across both backend engineering and Web3 development environments.

Experience working in
consulting environments or large professional services firms (Big 4 or similar)
is highly preferred due to the client-facing and solution-delivery nature of the role.

Key Responsibilities

• Design, develop, and deploy smart contracts using
  Solidity or Rust
  .
• Build backend services, APIs, and microservices using
  Java, JavaScript, TypeScript, or
  .
• Integrate applications with blockchain networks, RPC endpoints, or node infrastructure.
• Work with private/permissioned blockchain frameworks and distributed ledger technologies.
• Develop solutions compatible with
  EVM chains, Layer 2 networks
  , or related blockchain ecosystems.
• Implement secure coding standards and address common smart contract vulnerabilities.
• Collaborate on architecture decisions, scalability planning, and CI/CD deployment pipelines.
• Prepare documentation, design specs, and testing plans for blockchain solutions.
• Optimize contracts for performance, gas usage, and reliability.

Required Skills & Experience

• Strong programming background in
  Java and/or
  .
• Hands-on experience with
  Solidity, Rust
  , or equivalent smart contract languages.
• Understanding of
  EVM networks
  , Layer 2 technologies, and related infrastructure.
• Familiarity with cryptographic concepts such as hashing, digital signatures, and Merkle trees.
• Experience with tools like
  Hardhat, Foundry, Truffle, or Brownie
  .
• Proficiency in Git, CI/CD, DevOps processes, and collaborative development workflows.
• Knowledge of token standards (ERC-20, ERC-721, ERC-1155) and Web3 development patterns.
• Experience interacting with blockchain node providers or indexing tools.
• Frontend experience with
  React, TypeScript
  , or modern JS frameworks is a plus.

Nice-to-Have

• Experience working in
  consulting firms
  , professional services, or technology advisory roles (Big 4 experience highly preferred).
• Exposure to
  enterprise/permissioned blockchains
  or distributed ledger frameworks.
• Background in
  Payments, Cards, Financial Services
  , or digital asset ecosystems.
• Familiarity with DeFi, DEXs, DAOs, NFTs, tokenization, or digital asset protocols.
• Knowledge of cloud-native or containerization technologies (Docker, Kubernetes).

Who Should Apply

This role is ideal for candidates who:

• Have a strong engineering foundation and strong interest in blockchain innovation.
• Enjoy building secure, scalable solutions that merge Web2 and Web3 technologies.
• Have experience working in structured or client-facing environments such as consulting, fintech, or enterprise tech.
• Open for Candidates based in KSA or Doha