When Should You Consider Custom Software?
Custom software development is the right choice when your business processes are sufficiently unique that generic SaaS solutions require significant workarounds, when you need deep integration between multiple systems that commercial products don't support, or when you're building a proprietary capability that represents genuine competitive differentiation.
Development Services
Enterprise Web Application Development
We build complex, data-intensive web applications for operations management, customer portals, internal tools, workflow automation, and reporting platforms. Our technology stack includes ASP.NET Core, React.js, Vue.js, and Node.js, with PostgreSQL, SQL Server, and MongoDB as database platforms. All applications include role-based access control, audit logging, and multi-factor authentication.
Legacy System Modernization
Many California enterprises operate business-critical applications built on aging technology — Visual Basic 6, classic ASP, PowerBuilder, Lotus Notes, or outdated Java EE. NexCore executes legacy modernization using a strangler fig pattern that replaces components incrementally — reducing risk compared to "big bang" rewrites — while migrating to modern cloud-native architectures.
API Development & System Integration
Modern enterprises run 50–200 separate SaaS applications, creating data silos and manual data entry burden. NexCore builds RESTful and GraphQL APIs and integration middleware that connect your ERP, CRM, HRIS, e-commerce, accounting, and industry-specific platforms. We specialize in Salesforce, NetSuite, Microsoft Dynamics, SAP, Shopify, and custom REST API integrations.
Mobile Application Development
We develop native iOS and Android applications as well as React Native cross-platform apps for field service teams, warehouse operations, sales force automation, and customer-facing applications. Our mobile applications integrate with your enterprise systems through secure API layers and support offline operation.
Our Development Methodology
- Agile Scrum: 2-week sprints with working software delivered every iteration — never going dark for months
- Test-Driven Development (TDD): Automated unit and integration tests for every feature, targeting 80%+ code coverage
- DevSecOps: Security checks integrated into CI/CD pipeline — not an afterthought at project end
- Code Reviews: All code reviewed by a senior engineer before merging to main branch
- Documentation: Technical documentation maintained as part of definition of done
- Cloud-Native Architecture: Applications designed for containerized deployment on Kubernetes from day one
Technology Stack
| Layer | Technologies |
|---|---|
| Frontend | React.js, Vue.js, Angular, TypeScript, Next.js |
| Backend | ASP.NET Core, Node.js, Python (FastAPI/Django), Java Spring |
| Mobile | React Native, Swift (iOS), Kotlin (Android) |
| Database | SQL Server, PostgreSQL, MySQL, MongoDB, Redis |
| Cloud | Azure, AWS, Google Cloud, Kubernetes, Docker |
| Integration | REST APIs, GraphQL, Azure Service Bus, RabbitMQ, Apache Kafka |
| DevOps | GitHub Actions, Azure DevOps, Terraform, Helm |