- The Starting Point: A Legacy ERP That Had Hit Its Ceiling
- Phase One: Reverse-Engineering the Legacy System
- The Architecture Decision: .NET 8 and Angular
- CI/CD and Infrastructure: Docker Compose and Azure DevOps
- Customer and Order Data Unification
- Quality Practices: What Changed
- What This Project Demonstrates for Your Modernization
- Working with Hamdi Services on ERP Modernization
- Frequently Asked Questions
Legacy ERP systems have a way of becoming traps. The software still runs, but every new feature request turns into a fight with decade-old architecture. Data sits in silos. Integrations break quietly. Your team spends more time working around the system than getting value from it.
That was HydroSolution's situation before they partnered with Hamdi Services Inc. to rebuild their platform from the ground up.
This case study covers what the project involved, what drove the key architecture decisions, and what the migration actually produced. If you're evaluating an ERP modernization for your own organization, the specifics here should give you a grounded picture of what a well-executed migration looks like in practice.
The Starting Point: A Legacy ERP That Had Hit Its Ceiling
HydroSolution's existing ERP was a custom-built system that had served the business for years. It hadn't failed outright. The problem was that it had stopped being an asset and started being a constraint.
Customer records and order data were fragmented across modules that didn't communicate cleanly. Reporting required manual exports and reconciliation steps that nobody had time for. Extending the system meant reverse-engineering business logic that was never formally documented. The internal team carried deep institutional knowledge of the system's quirks — but that knowledge wasn't transferable, and it wasn't scalable.
The core challenge: modernize without losing the business logic embedded in the legacy system, and do it without disrupting active operations.
Phase One: Reverse-Engineering the Legacy System
Before writing a single line of new code, the Hamdi Services team spent significant time understanding what the existing ERP actually did.
This is a step many modernization projects skip or underinvest in. The result is usually a migration that technically moves data to a new platform but loses the edge-case logic that made the original system work for the business.
The reverse-engineering phase covered:
- Mapping all data entities and their relationships
- Documenting business rules buried in stored procedures and legacy application code
- Identifying integration points with external systems
- Flagging data quality issues that needed resolution before migration could begin
This work produced a clear picture of what needed to be preserved, what could be improved, and what could be retired. It also surfaced technical debt that had been invisible to stakeholders but was actively slowing the team down.
The Architecture Decision: .NET 8 and Angular
The target stack was .NET 8 on the backend and Angular on the frontend. Neither choice was arbitrary.
.NET 8 offers strong performance, mature tooling, and a clear long-term support roadmap from Microsoft. For an organization managing customer orders and operational workflows, framework reliability and ecosystem depth matter more than novelty. Angular provides a structured, opinionated frontend that scales well for complex business applications — and critically, it supports the bilingual FR/EN delivery that Canadian organizations operating in Quebec require.
Both choices also align with Hamdi Services' core delivery stack. The team wasn't learning new tooling mid-project. That consistency reduces risk in ways that are easy to underestimate.
CI/CD and Infrastructure: Docker Compose and Azure DevOps
Migrating to a modern application stack without modernizing the delivery infrastructure would have left HydroSolution with new code and the same old deployment problems.
The project included a full CI/CD pipeline built on Azure DevOps, with Docker Compose managing containerization for consistent environments across development, staging, and production. The concrete benefits:
Faster, safer releases. Automated pipelines run tests and deploy changes without manual steps. Releases that previously required coordination and downtime became routine.
Environment parity. Docker Compose ensures what runs locally matches what runs in production. That eliminates an entire category of bugs that slow teams down and erode confidence in deployments.
Auditability. Every deployment is logged, versioned, and reversible. For an organization managing customer and order data, this isn't optional — it's a compliance and operational requirement.
Customer and Order Data Unification
One of the most tangible outcomes of the migration was bringing customer and order records into a single, coherent data model.
In the legacy system, a customer could appear in multiple places depending on how they were originally entered. Orders linked to records through identifiers that had drifted over time. Getting a complete view of a customer's history meant running manual joins that were slow and error-prone.
The new platform resolved this. Customer data was cleaned, deduplicated, and migrated into a unified model. Orders link cleanly to customer records. Reporting that previously took hours now runs in seconds.
That sounds straightforward on paper. In practice, it requires careful migration logic, validation against the source system, and a tested rollback plan before anyone touches production data. The team built and validated all of it before the cutover.
Quality Practices: What Changed
The project also introduced quality practices that extended well beyond the migration itself.
Automated testing coverage was built into the new codebase from the start — not added after the fact. Code review processes were formalized. Observability was embedded directly into the application, giving the team real-time visibility into performance and errors in production rather than waiting for users to surface problems.
These practices matter because a modernized system that ships without them will accumulate technical debt at roughly the same rate as the legacy system it replaced. The goal wasn't just to move to a new platform. It was to give HydroSolution a foundation that stays maintainable over time.
What This Project Demonstrates for Your Modernization
The HydroSolution engagement illustrates several principles that apply to any ERP modernization:
Understand before you rebuild. Reverse-engineering the legacy system wasn't overhead. It was the work that made the migration accurate and complete.
Stack choices should match long-term needs. .NET 8 and Angular were chosen for stability, ecosystem support, and bilingual delivery capability — not because they were new.
Infrastructure is part of the product. A modern application sitting on an unmaintained deployment process is still fragile. CI/CD and containerization are part of what makes the system reliable.
Data quality is a migration prerequisite. Moving dirty data to a new system produces a clean-looking problem, not a solution. Validation and deduplication belong in the migration plan from day one.
Working with Hamdi Services on ERP Modernization
Hamdi Services handles the full scope of engagements like this one: product strategy, architecture, development, CI/CD setup, data migration, and post-delivery 24/7 support. The team embeds directly into your existing toolchain and adapts to your sprint cadence rather than imposing a separate process on top of yours.
Clients including Bell, Desjardins, and HydroSolution have used this model for complex, regulated-industry projects where delivery failures aren't an option.
If your organization is carrying a legacy ERP that's blocking growth, the right first step is a direct conversation about your specific constraints and timeline. Start that conversation at hamdiservices.ca/en/contact.
Frequently Asked Questions
What does an ERP modernization project typically involve?
It starts with reverse-engineering the existing system to document business logic, then moves through data migration, application rebuild on a modern stack, and CI/CD infrastructure setup for ongoing delivery. Scope varies by organization, but skipping the discovery and reverse-engineering phase is the most common reason migrations fail.
How long does an ERP migration take?
Timeline depends on the complexity of the legacy system, data volume, and the number of integrations involved. Projects with significant legacy debt and multiple external system connections typically run several months. A discovery phase at the start of the engagement produces a realistic timeline based on your specific system — not a generic estimate.
Why use .NET 8 and Angular for an ERP replacement?
.NET 8 offers strong performance, long-term Microsoft support, and a mature ecosystem suited to business-critical applications. Angular provides a structured frontend framework that scales well for complex workflows and supports bilingual FR/EN delivery. Together they produce a maintainable, well-supported platform with a large talent pool for ongoing development.
What is the role of CI/CD in an ERP modernization?
CI/CD automates testing and deployment so changes move from development to production reliably and without manual steps. For an ERP managing customer and order data, that means faster releases, fewer deployment errors, and a complete audit trail of every change made to the system.
How do you handle data quality issues during migration?
Data quality problems in the source system need to be identified and resolved before migration, not after. The approach involves profiling the existing data, flagging duplicates and inconsistencies, building migration logic that cleans and transforms records, and validating the output against the source before switching production traffic to the new system.
Can a modernization project run without disrupting current operations?
Yes, with the right approach. Running the legacy and new systems in parallel during the transition, combined with staged data migration and tested rollback plans, allows organizations to move to the new platform without a hard cutover that risks production downtime.
What industries benefit most from ERP modernization?
Any industry managing complex customer records, order workflows, or regulatory reporting on aging systems stands to gain. Telecom, insurance, utilities, and public sector organizations in Canada face particular pressure because their systems also need to meet compliance requirements and support bilingual delivery. These are the sectors where Hamdi Services has the deepest delivery experience.
ERP modernization isn't a one-size-fits-all project. The right approach depends on what your legacy system actually does, what your team needs from the replacement, and what your organization can realistically absorb during a transition. The HydroSolution project is one example of what a disciplined, outcome-focused migration looks like when it's done right.
If you're ready to have a specific conversation about your system, start a project with Hamdi Services.