Senior Full-Stack Engineer – Portals & Identity

We’re Hiring: Senior Full-Stack Engineer – Portals & Identity 📍 [Location / Remote / Hybrid] | 💼 5+ Years | 🏦 Financial Services

Are you the engineer who gets excited about OAuth flows as much as beautiful React UIs ? We’re looking for a hands-on technical owner for our customer and intermediary portals.

🔐 Your first mission Lead the migration of our IdentityServer-based login platform to a modern identity solution (Entra External ID / Duende / OpenIddict). You’ll help choose the platform, design secure login flows (OIDC, PKCE, MFA, passwordless, federation), and deliver it with zero loss of functionality.

🛠 Beyond that, you’ll ✅ Own the portals end to end: features, performance, security, and incidents

✅ Guide developers (including external vendors) and review PRs

✅ Safeguard our architecture: DDD/CQRS, BFF, event-driven design

✅ Partner with the business to prioritise what matters

💡 What You Bring 🔹 Next.js, React, and TypeScript (App Router, SSR) with Tailwind

🔹 Strong OIDC/OAuth2/SAML knowledge, and you’ve led at least one IdP migration 🔹 .NET/C# and ASP.NET Core, with CQRS, MediatR, and Azure Service Bus

🔹 Azure (App Service, Key Vault, APIM), Terraform, and GitHub Actions

🔹 Experience leading a small team or vendor

🔹 A security-first mindset (OWASP, GDPR, regulated environments)

⭐ Bonus points for Mortgage or fintech experience, Contentful, Playwright, SonarCloud/CodeQL, monorepos

🙌 You’re Someone Who Takes ownership, prefers maintainable over clever, and communicates clearly with both techies and business teams.

📩 Interested? Apply via [link] or DM me directly. Know someone perfect for this? Tag them below! 👇

Skills: stack,react,.net,portals,azure