Legacy System Modernisation
Custom Software Modernisation & Legacy System Re-Engineering
Bring New Life to Legacy Systems with Custom Modernisation
Outdated software slows down your business, increases cybersecurity risks, and limits integration with modern platforms. At Promwad, we offer bespoke software development and legacy system reengineering to help tech-driven companies future-proof their operations and applications.
Whether you're maintaining industrial controllers, embedded systems, or enterprise logic — we can help you modernise architecture, codebase, and workflows.
We focus on risk mitigation, software continuity, and aligning technology upgrades with your operational goals. Our services are especially suited for companies in regulated industries such as automotive, industrial automation, medical devices, and telecom.
What Is Legacy System Modernisation?
Legacy modernisation is the process of upgrading old software systems to match current business and technical requirements. This includes:
- Rewriting or refactoring code
- Migrating from monolith to microservices or containers
- Upgrading platforms (e.g., Linux kernel, OS, frameworks)
- Integrating with modern cloud, web, or mobile interfaces
- Enhancing security, traceability, and test coverage
As a software development agency, we focus on embedded systems, industrial platforms, and business-critical applications. Our goal is to preserve your system’s core functionality while transforming it into a modern, scalable solution.
Our Core Services
Re-Engineering of Embedded and Industrial Systems
- Refactoring firmware (C/C++, FreeRTOS, Zephyr)
- Migrating to modern MCUs and SoCs
- Secure boot, OTA, and telemetry integration
- Protocol stack modernisation (CAN, Modbus, Ethernet/IP)
Custom Business Software Development
- Rebuilding desktop or web-based legacy software
- UI/UX upgrades and backend modernisation
- API enablement and cross-platform portability
- Migration from proprietary frameworks to open technologies (e.g., .NET to Qt/Linux)
Architecture and DevOps Overhaul
- Monolith to microservices transformation
- Docker, Kubernetes, CI/CD pipelines
- Source control, testing automation, rollback strategies
- Cloud migration strategy: AWS, Azure, GCP, private cloud
Full Migration Support
- Hardware/software compatibility validation
- Database and protocol migration
- Downtime minimisation and phased deployment
- Device driver rewrites and interface testing
Common Legacy Challenges We Solve
How We Work: Modernisation in 6 Steps
1. Audit & Discovery
Evaluate current system, risks, and goals
2. Feasibility Study
Define technical roadmap and cost/time estimate
3. Architecture Redesign
Define new structure with scalability in mind
4. Rewriting/Refactoring
Incremental code transformation and validation
5. Migration & Deployment
Move to new platforms with minimum downtime
6. Support & Scaling
Documentation, training, and continuous updates
Why Promwad
As a trusted partner for custom software development outsourcing, we bring:
- 20+ years of experience in embedded and system software
- Full-cycle services: audit, redesign, implementation, QA, and support
- Scalable teams with secure collaboration models
- Proven success in regulated and mission-critical domains
- Cross-functional engineering teams: hardware, firmware, backend, DevOps
We don’t just rewrite your legacy code — we help you strategically modernise it to meet tomorrow’s requirements.
Start Modernising with Confidence
Modernising legacy systems doesn’t have to mean starting from scratch. With Promwad’s software development solutions, you can retain valuable business logic, reduce risks, and unlock new capabilities for the future.
Contact us to start your system upgrade!
Drop us a line about your project! We will contact you today or the next business day. All submitted information will be kept confidential.