Senior Fullstack Engineer

Cloudbox; Cape Town; On-site; ZAR 900,000 - 1,500,000; Full time

Job summary

Cloudbox is building a unified, multi-tenant data and reporting platform for hedge funds and financial services. You will own the client-facing and internal application layer, including React dashboards, REST API design, authentication, and tenant isolation.

You will work hands-on with Azure services, implement SSO/OAuth, and collaborate with a Data & AI Engineer to align dashboard consumption with lakehouse outputs. Security and scalable multi-tenant architecture are core focus areas.

Qualifications

• Experienced shipping production React applications.
• Strong API design capabilities.
• Hands-on across Azure platform including Function Apps, Web Apps, Storage and monitoring.
• Experience with SSO/OAuth (Enta ID/Azure AD a strong plus).

Responsibilities

• Own the client-facing and internal application layer, including React dashboards and REST API.
• Implement authentication and secure tenant isolation across API, storage and network layers.
• Collaborate closely with Data & AI engineers to consume lakehouse outputs.
• Ensure security-conscious engineering practices and auditable logs.

Skills

Senior React

API design

Azure platform

CI/CD

SSO/OAuth

Security

Tools

Azure Functions

Static Web Apps

Blob Storage

Key Vault

Application Insights

GitHub

Azure DevOps

Job description

About the role

Cloudbox is building a unified multi-tenant data and reporting platform serving hedge fund and financial-services clients. You'll own the client-facing and internal application layer: React dashboards, the REST API, authentication, and the security boundary between tenants.

What you'll own

• Two-level multi-tenant isolation (tenant and end-client) - enforced across API, storage, and network layers, tested as a CI isolation gate that blocks deployment
• React-based dashboard applications (client-facing and internal operations views)
• RESTful API design and implementation (Azure Functions) - versioned, serving read-only queries over the gold layer
• Entra ID SSO integration and access control
• The full reporting engine - lakehouse snapshot, PDF generation, schedule configuration, email delivery, and the client portal archive
• Cross-cutting controls on the application layer - immutable (WORM) audit logging on write paths, structured logs, SLOs, and alerting

What we're looking for

• Senior-level experience shipping production React applications
• Strong API design skills; comfortable owning a service end-to-end
• Hands-on across the Azure platform - Function Apps, Static Web Apps, Blob Storage, Key Vault, and monitoring/observability with Application Insights
• Managed identity and Key Vault-backed secret handling as default practice - no credentials in code
• Source control and CI/CD experience with both Azure DevOps and GitHub, including PR-based workflows with preview deployments
• Experience with SSO/OAuth-based authentication (Entra ID/Azure AD a strong plus)
• Security-conscious engineering practice - this platform serves regulated financial-services clients and multi-tenant data isolation is non-negotiable. We will ask for evidence: multi-tenant isolation shipped in production, or a security review you can walk us through
• Comfortable working closely with a Data & AI Engineer whose lakehouse output your API and dashboards consume