Senior Software Engineer - Node.js, AI & Blockchain

About the Role

We are looking for a Senior Software Engineer with a strong combination of backend engineering depth, applied AI experience, and blockchain/digital assets expertise. This role sits at the intersection of enterprise fintech and emerging technology — you will be building and scaling systems that matter, in an environment where your work has real-world financial impact.

If you have spent years writing production-grade Node.js, have crossed into AI-integrated systems, and have hands-on experience with blockchain development and smart contracts — this role was built for you.

What You'll Be Doing

• Designing and building scalable, high-availability REST and GraphQL APIs using Node.js and TypeScript
• Integrating AI/ML capabilities into backend services and fintech workflows
• Developing and deploying smart contracts for digital asset and crypto use cases
• Contributing to blockchain architecture decisions, protocols, and digital asset infrastructure
• Working within distributed microservices ecosystems — troubleshooting, optimizing, owning
• Collaborating across CI/CD pipelines, containerized environments (Docker, Kubernetes), and cloud platforms (AWS/Azure)
• Driving security-first development practices including JWT, OAuth, and SSO implementation
• Operating in an Agile environment with cross-functional squads

What You Need to Bring

Mandatory:

• 8+ years of professional software engineering experience
• 5+ years of hands-on Node.js and JavaScript in production environments
• Minimum 1 year in TypeScript
• Demonstrable AI/ML integration experience in real production systems — not just familiarity
• Blockchain development experience: smart contract development, digital assets, crypto protocols
• Solid understanding of Kafka, message queues, and event-driven architecture
• Experience with Docker and Kubernetes in production
• REST API design and GraphQL proficiency
• Banking, fintech, or financial services background strongly preferred
  

Strong advantage:

• Experience with Solidity or other smart contract languages
• Exposure to DeFi protocols, tokenisation, or digital asset custody platforms
• API gateway experience (3Scale or equivalent)
• Familiarity with regulatory and compliance considerations in digital finance

Education

Degree or postgraduate qualification in Computer Science, Engineering, or a related field — or equivalent demonstrated experience.