Top Tech Jobs & Startup Jobs in Belfast

The Senior DevOps Engineer builds and maintains infrastructure, delivery automation, and observability tools, optimizing performance and security while collaborating with development teams.

Design and execute test strategies for web, mobile, and API releases; build and stabilise automated tests in CI/CD; triage defects and perform root-cause analysis; validate on-chain/off-chain integrations and complex transaction flows; mentor junior QA engineers and align QA standards globally.

As a Senior Blockchain Engineer, you will design and optimize smart contracts and blockchain infrastructure, collaborate with teams to ensure secure solutions, and lead development efforts in the DeFi ecosystem. You will analyze technologies, mentor staff, and enhance performance while maintaining security best practices.

The role entails developing scalable backend systems using Node.js and Nest.js, ensuring high performance and security, and optimizing microservices architecture. Responsibilities also include system monitoring, code quality checks, and collaboration within a fintech context.