Senior Backend Engineer TypeScript / Node.js

Job Description
Elevate your career by joining us in our work with a prestigious UK-based multinational media company as a consultant. Seize the opportunity to grow professionally by leveraging cutting-edge technologies, driving the migration towards technical excellence, and contributing to products that reach millions of users daily. Enhance your skills in shaping team workflows within a dynamic international corporate environment.
The team develops and operates the services behind sign-in for millions of users: identity, authentication, authorisation and personalisation, built to be secure, scalable and highly available.
Key responsibilities:
Service Development: Design, build and maintain secure, scalable backend services for authentication, authorisation, identity and personalisation, delivering high-quality, production-ready code.
Epic Tech Lead: Take on tech lead responsibilities for assigned epics: shaping the technical approach, breaking the work down and steering it through to delivery.
Quality and Testing: Write and maintain unit, integration and automated tests, and give constructive code reviews to keep engineering standards high.
Operational Excellence: Integrate services with monitoring and observability tooling, and take part in in-hours production support and incident response. Any out-of-hours support is arranged separately.
Prioritisation and Flow: Work to the priorities agreed with the team, and flag work that is poorly broken down or blocking delivery, proposing a better approach before picking up new work.
Collaboration and Knowledge Sharing: Work with architects, product and technical leads to turn requirements into implementable solutions, and support less experienced engineers through pairing, code reviews and knowledge sharing.
Agile Delivery: Work within an agile, multidisciplinary team to plan, develop and deliver product increments iteratively.
Qualifications:
Backend Proficiency: Over 5 years of production experience building scalable distributed systems and backend services with TypeScript or JavaScript.
AWS Serverless: Over 2 years of experience with AWS serverless architecture, including Lambda, API Gateway, CDK and CloudFormation.
Test-Driven Development: Strong experience with TDD and broader testing and quality practices.
CI/CD and Operations: Experience implementing CI/CD pipelines and addressing operational concerns: monitoring, performance testing, scalability, availability, resilience and security.
Technical Leadership: Experience as technical lead on at least one medium or large piece of work (3+ months).
Nice to Have: Practical experience with OAuth 2.0, OpenID Connect and customer identity and access management (CIAM); Java; CloudWatch or Grafana; DynamoDB, Kinesis, ALB/WAF Node.js.