Hybrid Backend Blockchain Engineer (Solidity & Web3)

Placements24; United States; Hybrid; USD 81,000 - 148,000; Full time

Benefits offered by this job

Hybrid work model

Competitive salary

Health insurance

Retirement plan

Job summary

Placements24 is seeking a skilled Blockchain Developer (Backend) to design, develop and maintain robust backend systems for decentralized applications in London. You will build the core infrastructure powering blockchain solutions with a strong focus on scalability, security and efficiency.

The role requires 3+ years in backend development and expertise in Node.js, Python, Go, or Java, plus experience with Solidity and Web3.js/ethers.js.

Qualifications

• Bachelor's degree in CS, Engineering or related field.
• Minimum 3 years of professional backend development experience.
• Proficiency in backend languages: Node.js, Python, Go, or Java.

Responsibilities

• Develop and maintain backend services and APIs that interact with blockchain networks.
• Implement and optimize smart contracts for various use cases with focus on security and efficiency.
• Integrate blockchain components with existing enterprise systems and third-party services.
• Design and manage databases relevant to blockchain applications.
• Write clean, well-documented, and thoroughly tested code following best practices.
• Collaborate with frontend developers to ensure seamless user experiences.
• Troubleshoot and resolve backend issues to ensure system stability and performance.

Skills

Node.js

Python

Go

Java

Smart contracts

Education

Bachelor's degree in Computer Science or related field

Tools

Web3.js

ethers.js

Job description

Placements24 is seeking a skilled Blockchain Developer (Backend) to design, develop and maintain robust backend systems for decentralized applications in London. You will build the core infrastructure powering blockchain solutions with a strong focus on scalability, security and efficiency.

The role requires 3+ years in backend development and expertise in Node.js, Python, Go, or Java, plus experience with Solidity and Web3.js/ethers.js.