Web Application Development

Frontend: Next.js and React. Next.js is chosen for applications where server-side rendering matters, since it measurably reduces time-to-interactive on data-heavy dashboards and improves crawlability for public-facing portals. Backend: ASP.NET Core for high-throughput transactional systems requiring strict type safety and .NET ecosystem integrations; NestJS/Node.js for event-driven architectures and real-time features. Databases: PostgreSQL for relational, transactional data; SQL Server where clients have existing Microsoft infrastructure; MongoDB for document-oriented data structures. Redis handles caching and session state, keeping API response times under 200ms. Deployment uses Docker containers orchestrated by Kubernetes, ensuring that what runs in staging is identical to what runs in production.

Yes, and the definition of responsive matters. Every application we build is developed mobile-first, meaning the layout, touch target sizes, and interaction patterns are designed for small screens before they are adapted for desktop. QA includes testing across real device viewports, not just browser emulation, for iOS Safari, Android Chrome, and tablet breakpoints. For applications where mobile usage is primary, we also evaluate whether a Progressive Web App build makes more sense than a standard responsive web approach, since PWAs can support offline functionality and home-screen installation without a native app build.

Yes, and legacy migration is a defined service with its own methodology. The first step is a Legacy Audit: we document the existing application's data model, business rules, and integration points before writing any replacement code. This audit often surfaces undocumented logic baked into the old system that would otherwise be lost. Migration typically runs in parallel. The old system stays operational while the new web application is built and validated. Data migration scripts are tested against production-scale data volumes before cutover. Clients in this process receive a Migration Runbook covering rollback procedures, validation checks, and go-live sequencing.

Security is addressed at the architecture level, not as a post-launch checklist. Authentication uses industry-standard flows: OAuth 2.0 and OpenID Connect for third-party identity providers, JWT with short expiry windows and refresh token rotation for session management. All database queries use parameterized statements to prevent SQL injection. API endpoints enforce rate limiting and input validation at the schema level. File uploads are scanned and stored outside the web root. Before go-live, every application goes through an OWASP Top 10 review, and findings are documented and resolved before production access is granted. HTTPS is enforced with HSTS headers; security headers including CSP, X-Frame-Options, and X-Content-Type-Options are configured on every deployment.

Frontend: Next.js and React for server-rendered and single-page applications, chosen because they produce fast, SEO-friendly interfaces and share components with mobile web views. Backend: ASP.NET Core for enterprise-grade APIs requiring strong typing and Windows compatibility; NestJS/Node.js for event-driven and real-time workloads. Database: PostgreSQL or SQL Server for relational data with complex joins; MongoDB for document-heavy or flexible schema requirements. Redis for session caching and job queues. Docker and Kubernetes for containerized deployment on AWS or Azure.

Compliance requirements are addressed at the architecture stage, not retrofitted afterward. For GDPR: data is stored in EU-region cloud instances, consent management is built into the user flow, and a data subject request API is included. For HIPAA: PHI fields are encrypted at rest and in transit using AES-256, access is logged per field, and BAA agreements are established with cloud providers. Role-based access control (RBAC) and audit logging are standard in every build involving regulated data.

Yes. We can take over a web application another team built, including codebases in React, Next.js, Vue, Laravel, or .NET. The process begins with a structured code audit covering security vulnerabilities, test coverage gaps, database schema quality, and dependency staleness. You receive a written assessment report before any remediation begins. From there, we establish a stable baseline by fixing critical issues first, then move to feature development on a planned sprint cadence.