Service 04 — Web Design & Application Development
Web Design & Application Development
We design and build corporate websites and mission-critical web applications meant to run for years, not just launch well — engineered with the same rigor we bring to industrial control systems.
A useful web application fits the way your business works. We turn disconnected spreadsheets, email requests, and manual handoffs into workflows that people can follow. Start with a focused release, validate it with real users, and add capabilities as the business case becomes clear.
What we deliver
Corporate Website Design
Marketing sites and brand presences built for clarity, performance, and search visibility, without unnecessary complexity.
Custom Web Application Development
Full-stack applications — internal tools, customer portals, and operational systems — built around your actual workflows, not a generic template.
API & Systems Integration
Connecting your web applications to ERPs, industrial data sources, and third-party services through secure, well-documented APIs.
Long-Term Maintenance & Support
Ongoing maintenance, security patching, and feature development so applications stay reliable well past launch day.
Services for specific business needs
Customer and partner portals
Give customers a place to submit requests, follow their status, and access relevant information. Define permissions and responsibilities so each user sees the records and actions appropriate to their role.
Internal business applications
Replace repeated spreadsheet work with forms, approvals, dashboards, and searchable records. Examples include service requests, resource coordination, inventory workflows, and operational reporting.
Business system integrations
Connect applications through documented APIs, webhooks, and data exchange jobs. Define validation, retries, and exception handling so failed transfers can be understood and corrected.
Corporate websites and modernization
Build a clear public presence or improve an existing application. Scope responsive layouts, accessible interactions, crawlable content, performance, and a practical migration path for existing data and URLs.
Technology choices for your environment
Tools are selected around compatibility, licensing, data, and support needs. The technical scope is confirmed in the proposal.
- React, TypeScript, and web standards
- Options for interactive interfaces with reusable components. Server rendering or static generation can be selected for public content, while authenticated workflows use the appropriate application architecture.
- APIs and relational data
- Node.js, PostgreSQL, and managed backend services are candidates for application logic and structured records. Selection depends on integrations, data residency, access controls, and the client's existing environment.
- Cloud delivery and quality checks
- Cloudflare, Azure, and other hosting options can support the delivery plan. Version control, automated checks, backups, and release procedures are defined around the application's business importance.
Support and continuity
Maintenance and corrective support
Agree on how to report issues, prioritize fixes, update dependencies, and review application health. Access, monitoring coverage, recovery responsibilities, and response targets belong in the support agreement.
Product evolution
Maintain a prioritized improvement backlog informed by user feedback. Small releases, acceptance checks, and documented changes help the application evolve without losing sight of everyday operations.
Deliverables we can agree on
- Workflow map and prioritized requirements
- Interface designs and working increments
- Source code and deployment documentation as agreed
- Acceptance results and maintenance plan
Built for your industry
- Corporate & marketing websites
- Internal enterprise tools & dashboards
- Customer & partner portals
- B2B and e-commerce platforms
- Mission-critical operational systems
Why partner with SISTEG GROUP
- Engineering discipline carried over from industrial and compliance-driven projects
- Applications built for long-term maintainability, not just initial delivery
- Security-conscious development practices from day one, not bolted on later
- One partner across web, automation, AI, and Microsoft 365 needs
Frequently asked questions
- What types of web applications do you build?
- We build corporate and marketing websites, internal enterprise tools, customer and partner portals, and mission-critical operational applications — anything from a brand presence to a system your business depends on daily.
- Do you offer ongoing maintenance after the application launches?
- Yes. We offer ongoing maintenance packages covering security patching, dependency updates, monitoring, and incremental feature development after go-live.
- Can you work with our existing tech stack, or do you dictate the stack?
- We adapt to your existing stack whenever practical, and recommend a modern, well-supported stack for new projects — the goal is always long-term maintainability, not showcasing a particular technology.
- How do you ensure security and long-term maintainability?
- We follow secure-by-default development practices, document architecture decisions, and avoid unnecessary dependencies or abstractions — the same discipline we apply to industrial and compliance-sensitive projects.
Connect other parts of your business
LET’S TALK ABOUT YOUR PROJECT
The next step starts with your needs.
Tell us about your business, the service you need, and the challenge you want to solve. We’ll help define the scope and next steps.