Node.JS Backend Developer

Node.JS Backend DeveloperLocation: LondonRole Type: PermanentWork Setup: Hybrid - 3 days in the officeWho We Are Vanguard is a global investment firm known for low-cost funds and ETFs, helping investors achieve long-term financial goals with transparent, disciplined strategies.What you''ll doDevelop and enhance Back End services supporting authentication and MFA platforms.Design, build and maintain RESTful APIs using TypeScript, Node.js and NestJS.Deploy, monitor and support applications within AWS using Infrastructure as Code.Maintain production services, including software updates, database migrations and operational support.Contribute to CI/CD pipelines, automated testing and continuous improvements to engineering practices.Collaborate with product, security and engineering teams to deliver secure, reliable technical solutions.What you bringStrong commercial experience with TypeScript, Node.js and NestJS or Express, with a proven track record of building RESTful APIs.Hands-on experience with AWS services including ECS, Lambda, CloudFront, S3 and Secrets Manager, alongside Infrastructure as Code using CloudFormation, CDK or Terraform.Good understanding of authentication technologies such as OAuth 2.0 and JWT, with exposure to identity or MFA platforms (eg Auth0 or Transmit Security) being advantageous.Experience using Git, CI/CD tools (such as GitHub Actions), and writing unit and integration tests with Jest.Knowledge of microservices architecture, API gateways (such as ..... full job details .....