Engineering Software Systems
Building robust, scalable, and maintainable software systems for engineering and industrial applications – from responsive frontends and resilient APIs to database optimisation and CMS platforms.
Overview
Industrial and engineering environments demand software that is reliable, maintainable, and adaptable. I design and build complete software systems that bridge the gap between hardware, data, and users:
- Frontend development – Responsive, intuitive user interfaces.
- Backend engineering – Scalable APIs and service-oriented architectures.
- Database design – Optimised schemas, migrations, and performance tuning.
- DevOps integration – Containerised deployments, CI/CD, and monitoring.
- CMS & legacy platforms – Modernising existing systems while maintaining compatibility.
My approach is full-stack – I understand the entire pipeline from browser to database to infrastructure.
Architecture Overview
Core Capabilities
1. 🎨 Frontend Engineering
I build responsive, accessible, and performant user interfaces for engineering applications:
| Skill | Description |
|---|---|
| React | Component-based SPAs with hooks, context API, and state management. |
| Tailwind CSS | Utility-first styling for rapid, consistent UI development. |
| JavaScript (ES6+) | Modern JavaScript for interactive features. |
| Responsive Design | Mobile-first, cross-browser compatible interfaces. |
| Data Visualisation | Real-time charts and dashboards for IoT/telemetry data. |
Example: A real-time IoT dashboard displaying sensor data, device status, and alerts – built with React and Tailwind CSS, updating via WebSockets.
2. ⚙️ Backend Engineering
Reliable, scalable, and secure server-side applications:
| Skill | Description |
|---|---|
| Laravel (PHP) | Full-featured framework for APIs, admin panels, and CRUD applications. |
| Node.js | High-performance, event-driven APIs for real-time applications. |
| Python | Data processing, automation scripts, and AI integration. |
| PHP (Legacy) | Maintaining and modernising legacy PHP applications. |
| RESTful APIs | Well-structured, documented APIs with versioning. |
| Authentication | JWT, OAuth2, session-based, and role-based access control. |
Example: The N3xar IoT Platform – a Laravel/Node.js hybrid backend handling device registration, telemetry ingestion, and user management.
3. 🗃️ Database Engineering
Designing and optimising databases for performance and scalability:
| Skill | Description |
|---|---|
| PostgreSQL | Primary database for transactional and analytical workloads. |
| MySQL | Legacy systems and some CMS platforms. |
| Schema Design | Normalised schemas with appropriate indexes. |
| Query Optimisation | Slow query analysis, indexing strategies, and EXPLAIN plans. |
| Migrations | Version-controlled schema changes (Laravel, Node.js). |
| Replication | Master-slave setups for read scaling and backups. |
Example: A PostgreSQL database with 50+ tables, supporting 100+ queries per second, with replication for high availability.
4. 📦 CMS & Frameworks
Managing and modernising content management systems and legacy frameworks:
| Platform | Role |
|---|---|
| WordPress | Corporate websites, blogs, documentation portals. |
| Joomla | Content-rich websites with complex user roles. |
| CakePHP | Legacy applications (migration planning to Laravel). |
| Custom PHP | Proprietary business applications. |
Approach: I don’t just “use” WordPress or Joomla – I extend them with custom plugins, optimise performance, and integrate them with modern APIs and authentication systems.
Example Projects
🌐 N3xar IoT Platform – Full-Stack IoT Dashboard
A complete IoT platform for managing remote devices and telemetry data:
- Frontend: React + Tailwind CSS – real-time dashboards and device management.
- Backend: Node.js (WebSockets) for real-time updates, Laravel for CRUD operations.
- Database: PostgreSQL with TimescaleDB extension for time-series data.
- Authentication: JWT-based with role-specific views.
- Integration: MQTT broker for device communication, Grafana for advanced analytics.
- Deployment: Docker containers orchestrated with Docker Compose, served via Traefik.
Impact: Reduced device provisioning time by 80%, provided real-time visibility for 50+ deployed sensors.
📊 Engineering Admin Portal – Laravel
A custom admin portal for a manufacturing facility:
- Frontend: Laravel Blade templates with Tailwind CSS.
- Backend: Laravel 10 with custom controllers, services, and repositories.
- Features: User management, equipment tracking, maintenance scheduling.
- Export: PDF report generation for audit compliance.
- Integrations: API connections to inventory and ERP systems.
Impact: Streamlined maintenance scheduling, reducing downtime by 25%.
📡 Scalable Web Application – Node.js + React
A web application for real-time tracking of field assets:
- Frontend: React with Mapbox GL for location visualisation.
- Backend: Node.js with Socket.io for real-time location updates.
- Database: PostgreSQL with PostGIS for geospatial queries.
- DevOps: Dockerised deployment, CI/CD via GitHub Actions.
- Testing: Unit and integration tests with Jest.
Impact: Enabled real-time tracking of 100+ assets across a 500km² area.
🏗️ WordPress Documentation Portal
A high-traffic documentation portal for engineering teams:
- Platform: WordPress with custom theme and plugins.
- Features: Knowledge base with search, versioned documentation, PDF export.
- Performance: Cache optimisation, CDN integration, and image optimisation.
- Authentication: Integration with corporate OAuth provider.
- Maintenance: Automated updates, backup, and security hardening.
Impact: Reduced time-to-find documentation by 60%, improved team productivity.
Technology Stack
| Category | Technology |
|---|---|
| Frontend | React, Tailwind CSS, JavaScript (ES6+), HTML5, CSS3 |
| Backend | Laravel (PHP), Node.js, Python, PHP |
| Frameworks | CakePHP, Joomla, WordPress |
| Databases | PostgreSQL, MySQL, Redis |
| APIs | REST, WebSockets, GraphQL (basic) |
| DevOps | Docker, Docker Compose, Traefik, Nginx, VPS |
| Monitoring | Grafana, Prometheus (for application metrics) |
| Version Control | Git (GitHub/GitLab) |
| Authentication | JWT, OAuth2, Session-based |
Key Achievements
- 30+ web applications deployed across engineering and industrial domains.
- 50+ database schemas designed and optimised for production.
- 100% API uptime over 6 months for critical applications.
- 60% reduction in time-to-find documentation via WordPress portal.
- 80% reduction in device provisioning time via N3xar IoT platform.
- 25% reduction in equipment downtime via Laravel admin portal.
- 2 legacy CakePHP applications successfully modernised to Laravel.
Engineering Principles
| Principle | Why It Matters |
|---|---|
| Maintainability | Code is read more than it’s written. Clear naming, documentation, and modular architecture. |
| Scalability | Design for growth – horizontal scaling, database optimisation, and stateless APIs. |
| Security | Input validation, parameterised queries, CSRF/XSS protection, and regular dependency updates. |
| Testability | Automated tests (unit, integration, E2E) catch issues early. |
| Observability | Logging, metrics, and tracing to understand system behaviour. |
| Simplicity | Choose the right tool for the job. Avoid over-engineering. |
Related Projects
- Scalable IoT Systems – IoT platform built on this software stack.
- Industrial Infrastructure Platform – The infrastructure hosting these applications.
- AI Engineering & Automation – Automating workflows on this platform.
- Monitoring & Telemetry – Observability for these applications.
These software systems are part of my broader Industrial Infrastructure Platform (II-PaaS). For a detailed technical walkthrough or custom software design, feel free to reach out.