Senior Node.js Engineer (TypeScript) - AI-Driven Backend

Diligent; Greater London; Hybrid; GBP 90,000 - 150,000; Full time

Benefits offered by this job

Hybrid work model

Office in London

Job summary

Diligent is hiring a Senior Software Engineer to own complex backend features in Node.js and TypeScript. Based in London with hybrid work, you’ll build secure microservices on AWS, mentor engineers, and collaborate with product managers and designers to deliver reliable services at scale.

You’ll apply AI-assisted tools judiciously, contribute to architecture decisions, testing, and deployment practices, and help raise the bar across the backend and cloud stack.

Qualifications

• 5 to 8 years of professional software engineering experience delivering production systems in an agile environment.
• Strong backend development skills with Node.js and TypeScript, including experience designing and building APIs or microservices.
• Comfort contributing to technical design discussions and taking ownership of complex features or services end to end.
• Hands‑on experience with AWS - or other - cloud-native development, automated testing, and deployment practices that support reliable delivery.
• Comfort working with SQL databases, Git, Docker‑based workflows, and modern CI/CD pipelines.
• Practical understanding of AI‑assisted engineering tools and broader LLM concepts, with the judgment to use them responsibly with privacy, security, cost, and quality in mind.
• Clear communication skills, a collaborative mindset, and experience supporting or mentoring other engineers within a product engineering team.

Responsibilities

• Own and deliver complex backend services and APIs using Node.js, TypeScript, and AWS, from technical design through release and production support.
• Contribute to design and architecture discussions, making pragmatic decisions that balance delivery speed, maintainability, scalability, and security.
• Mentor and support less experienced engineers through code reviews, pairing, technical guidance, and day-to-day collaboration.
• Work closely with product managers, designers, and engineers across the team to turn requirements into practical, reliable solutions.
• Use AI tools to accelerate coding, debugging, testing, research, and documentation, while validating outputs carefully and applying sound judgment.
• Strengthen service reliability, observability, and engineering quality by improving monitoring, incident response, testing, and development practices.

Skills

Node.js

TypeScript

AWS

SQL

Docker

CI/CD

AI tools

Tools

Terraform

CDK

Job description

Diligent is hiring a Senior Software Engineer to own complex backend features in Node.js and TypeScript. Based in London with hybrid work, you’ll build secure microservices on AWS, mentor engineers, and collaborate with product managers and designers to deliver reliable services at scale.

You’ll apply AI-assisted tools judiciously, contribute to architecture decisions, testing, and deployment practices, and help raise the bar across the backend and cloud stack.