Full-Stack Engineer
Websparks Pte LtdSingapore6 hours ago
Full-timeEngineering, Information Technology
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Tech Stack: Node.js, TypeScript, Vercel Serverless, Vercel KV, Vercel Postgres, OAuth2/OIDC, JWT. .NET C#
Seniority: Mid–Senior
Technical Skills
Required Skills & Experience
Seniority: Mid–Senior
Technical Skills
Required Skills & Experience
- Strong proficiency in Node.js and TypeScript
- Experience with Vercel Serverless Functions, Vercel KV, and Vercel Postgres
- Deep understanding of: OAuth 2.0, OpenID Connect, JWT, JWK/JWKS, Authorization Code Flow with PKCE
- Experience implementing RBAC (role-based access control) and permission-based access systems
- Expertise in REST API development and serverless patterns
- Experience integrating third-party OAuth providers (Auth0, Azure AD, Google, etc.)
- Experience with Postgres schema design
- Familiarity with Redis/KV-style stores for caching session metadata
- Ability to implement secure integration with external APIs (e.g., Sitecore Content Hub)
- Knowledge of secure authentication & session management (OWASP ASVS)
- Understanding of: CSRF, XSS, token replay prevention, secure cookie configurations
- Awareness of PDPA and Singapore data-protection requirements
- Strong documentation habits
- Ability to clearly articulate architectural decisions
- Experience working with cross-functional teams (frontend, infrastructure, compliance)
- Ability to troubleshoot complex identity flows and serverless issues
- Prior experience integrating SingPass, SGID, or Corppass
- Familiarity with Sitecore or Sitefinity
- Experience with Next.js middleware and full-stack integration
- Knowledge of content governance / asset access models
- Experience working on government-related or compliance-heavy projects
Key Skills
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