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We're looking to engage an experienced Full Stack Developer to deliver a defined package of security and compliance-focused enhancements to our client's web platform.
This is a short-term, well-scoped contract focused on strengthening authentication, auditing, and application security within an existing production system.
The Role
You will be responsible for implementing several targeted improvements to a live ASP.NET MVC application, including:
- Adding multi-factor authentication (MFA) to user login
- Implementing step-up verification for sensitive user actions to confirm user presence at the point of authorisation
- Enhancing audit logging to capture user actions with timestamps
- Reducing security vulnerabilities by updating legacy libraries and resolving AppCheck warnings
- Producing clear technical documentation and handing over to the internal team
Tech Stack
- ASP.NET MVC (.NET Framework 4.8)
- C#
- JavaScript, HTML, CSS
- REST APIs
Required Experience
- Strong background in authentication and authorisation patterns
- Experience securing high-risk or regulated user actions (e.g. approvals, authorisations)
- Comfortable working independently on well-defined enhancements
- Ability to work within an existing codebase and platform constraints
- Clear documentation and handover skills
Desirable
- Experience in regulated environments
- Familiarity with step-up authentication or electronic signature workflows
- Pragmatic approach to improving security without large-scale rewrites
For more info, contact Ruben Davis at Synergy
