Remote Blockchain Engineer — Smart Contracts & Security

ErthDev; United States; Remote; USD 34,000 - 83,000; Part time

Benefits offered by this job

Part-time remote

Remote Egypt

Flexible hours

Performance bonuses

Annual salary reviews

Medical insurance

Equipment and internet support

Learning & development opportunities

Job summary

ErthDev is seeking a distributed-ledger engineer to design and build smart contracts and blockchain integrations. The role emphasizes security, cost considerations, and evaluating when blockchain is the right choice for a given problem.

You will collaborate with product, backend, and security teams, review and test contract code for vulnerabilities, and contribute to both on-chain and off-chain components. This is a part-time, fully remote position open to candidates in Egypt.

Qualifications

• Practical experience developing smart contracts and blockchain applications.
• Strong security awareness for on-chain systems and experience testing or reviewing contract code.
• Solid backend engineering fundamentals and familiarity with relevant cryptography basics.
• Ability to explain technical and architectural trade-offs to non-crypto stakeholders.
• Clear documentation habits and judgment about when blockchain is unnecessary.

Responsibilities

• Design and implement smart contracts and blockchain integrations.
• Assess whether a distributed ledger is appropriate for each problem and explain the trade-offs.
• Build on-chain and off-chain components, integrating wallets, indexing, and backend services as needed.
• Test and review contract code for common security vulnerabilities.
• Document trust assumptions, risks, and operational procedures.
• Collaborate with product, backend, and security teams; monitor deployments and help respond to chain-related incidents.

Skills

Smart contracts

Blockchain apps

Security awareness

Cryptography basics

Backend fundamentals

Documentation habits

Tools

Solidity

EVM networks

Auditing practices

Indexing tools

Wallet UX

Key management

Job description

ErthDev is seeking a distributed-ledger engineer to design and build smart contracts and blockchain integrations. The role emphasizes security, cost considerations, and evaluating when blockchain is the right choice for a given problem.

You will collaborate with product, backend, and security teams, review and test contract code for vulnerabilities, and contribute to both on-chain and off-chain components. This is a part-time, fully remote position open to candidates in Egypt.