Senior Blockchain Backend Engineer (DeFi/dApps)

Placements24; Willows (CA); On-site; USD 54,000 - 78,000; Full time

Benefits offered by this job

Competitive salary

Stock options

Medical insurance

Relocation assistance

Paid time off

Job summary

Placements24 is seeking a Senior Blockchain Engineer to design, build, and maintain robust backend services for blockchain applications, including smart contracts and dApps, based in Welkom, ZA.

The role emphasizes scalable, secure infrastructure, collaboration with frontend teams, and staying ahead of blockchain innovations. Candidates should have experience with Go/Rust/Node.js/Python and Solidity, plus cloud and containerization skills.

Qualifications

• Proven experience as a backend engineer with blockchain focus.
• Strong programming skills in Go, Rust, Node.js or Python.
• Experience with smart contract development (Solidity).
• Understanding of distributed systems and cryptography.

Responsibilities

• Design, develop, and maintain backend services for blockchain applications.
• Build and integrate smart contracts with backend systems.
• Develop RESTful APIs for dApps and frontend integration.
• Ensure scalability, security, and reliability of infrastructure.
• Collaborate with frontend teams and manage data on-chain/off-chain.

Skills

Go

Rust

Node.js

Python

Education

Bachelor's degree in Computer Science or related field

Tools

Solidity

Docker

Kubernetes

AWS

SQL/NoSQL

Job description

Placements24 is seeking a Senior Blockchain Engineer to design, build, and maintain robust backend services for blockchain applications, including smart contracts and dApps, based in Welkom, ZA.

The role emphasizes scalable, secure infrastructure, collaboration with frontend teams, and staying ahead of blockchain innovations. Candidates should have experience with Go/Rust/Node.js/Python and Solidity, plus cloud and containerization skills.