JSBC Labs

Senior Backend Engineer - CryptoSec, Golang or Java

Status: Open

Salary: R 80,000 to R 100,000

Experience: 5 years

Java Golang CryptoSec

Role is on-site or hybrid.

Johannesburg

How to Apply

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Help us secure the digital assets of millions by building the foundational custody and blockchain integration systems for a leading crypto exchange. You'll ensure the safety and reliability of customer funds.

What We're Looking For - 3+ years building secure backend microservices (Go/Golang preferred) - Experience with blockchain integrations or fintech security - Proven ability to design and scale distributed systems - Strong understanding of data structures and algorithms - Excellent communication and collaboration skills

What You'll Do - Build and maintain critical custody and blockchain interaction services - Design and implement key management and transaction orchestration tools - Ensure the security, efficiency, and resilience of core crypto infrastructure - Collaborate with cross-functional teams to deliver new features

Why You'll Love It - Work on mission-critical systems impacting millions globally - Opportunity to shape the future of crypto security - Competitive salary, equity, and comprehensive benefits