Senior Software Engineer - Identity & Authentication

Overview

In the European Client Identity team, we are building and operating Vanguard's authentication and MFA platform used by hundreds of thousands of clients across the UK and Europe. This is a hands‑on senior full‑stack role focused on designing, building, deploying, and operating cloud‑based identity services. You will contribute across backend APIs, cloud infrastructure, and frontend experiences, with React as the preferred frontend framework for new UI work. This role operates in a highly regulated environment where security, reliability, and operational discipline matter. Strong full‑stack fundamentals, cloud experience, and a responsible, methodical engineering mindset are required.

Responsibilities

• Build and evolve backend services that support login, MFA, and client authentication.
• Design and implement REST APIs using NestJS / TypeScript.
• Build frontend experiences using React where new UI development is required. <...