Building scalable, secure, and domain-driven systems with real-world impact.

Fullstack developer focused on backend architecture, security, and financial systems design.

I work on systems where data integrity, traceability, and scalability are not optional, applying:

• Domain-driven thinking
• Secure API design
• Strong consistency models when required

Most of my work revolves around Java ecosystems, modern web stacks, and cloud-backed architectures.

• JWT Authentication
• Audit Logging & Traceability
• Secure REST APIs
• Microservices Architecture
• Domain-Oriented Design

• Designing financial systems with double-entry accounting models
• Building secure and auditable APIs
• Structuring microservices with clear domain boundaries
• Integrating modern frontend with robust backend services
• Working with hybrid environments (legacy + modern stack)

• Backend: Java + Supabase (REST + RPC)
• Frontend: Angular
• Focus: concurrency control, short code generation, API-first design

• Double-entry accounting model
• Audit trails for every transaction
• Domain separation: security, notifications, historical data
• PostgreSQL-based design

• JWT-based authentication
• Event auditing (INSERT, UPDATE, DELETE tracking)
• Designed for compliance-heavy environments

I prioritize:

• Clarity over cleverness
• Explicit design over implicit behavior
• Security as a first-class concern
• Data integrity over convenience

If a system cannot be audited, it is not production-ready.

• GitHub: https://github.com/davidninam
• LinkedIn: (add if applicable)

• Not focused on trends — focused on systems that hold under real constraints
• Interested in fintech, backend architecture, and scalable systems