Legacy System Modernization Company in Montreal

QServices is a remote-first software consultancy serving Montreal businesses in aerospace, pharma, gaming, and AI research. We are not headquartered in Montreal. Our team is India-based, running fully remote legacy modernization engagements with ET morning overlap hours. See our services overview for the full scope of what we deliver.

What Montreal buyers typically need from legacy system modernization

Montreal's primary industries create a specific set of modernization problems. Based on the work we do with regulated manufacturers and software-intensive businesses, these are the project types that come up most often:

• Aerospace and pharma compliance infrastructure: Companies in these sectors run EHS, quality management, and document control on .NET Framework or VB.NET monoliths. Quebec Law 25 (Bill 64) added data-residency and consent obligations that these systems were not built to satisfy. A strangler-fig migration that pulls compliance-sensitive modules first is typically the right starting point, not a full rewrite.
• Gaming and AI research tool debt: Montreal has a large gaming cluster and significant university-affiliated AI research activity. Internal tools built on legacy stacks block integration with modern ML pipelines or cloud-native build systems. The modernization here is usually an API gateway layer and containerized services rather than a ground-up rebuild.
• French language compliance: Under Quebec's Charter of the French Language (Bill 101), commercial software products must support French. Systems migrated to .NET 8 and React need localization architecture built in from the start, not added after the fact.
• Quebec Law 25 data mapping: Organizations subject to Law 25 must document where personal information is stored and transferred. If a legacy system holds personal data in undocumented tables or file stores, the migration plan needs a data-mapping phase before any code moves. The Commission d'acces a l'information (CAI) is the enforcement body for this obligation.

These are the actual compliance blockers that convert a "we'll modernize eventually" decision into a deadline-driven project.

How we work with Montreal clients

Our team works in IST (UTC+5:30). Montreal runs on ET, which is UTC-4 in summer and UTC-5 in winter. That puts the gap at 9.5 to 10.5 hours. In practice, our team's evening (5:30 to 8:00 PM IST) aligns with your morning (8:00 to 10:30 AM ET). We schedule standups in that window so both sides are in working hours, not at the edges of their days.

The working rhythm we use on every engagement:

• Weekly video standup on Teams or Slack, scheduled to your morning
• Async Slack channel for daily progress updates, blockers, and code review requests
• GitHub pull requests reviewed within 24 hours; sprint demos every two weeks via recorded Loom or live call
• Human-in-the-Loop (HITL) approval gates at each migration phase, where your team signs off before any module is cut over to the new stack

For Quebec Law 25 engagements, we document data flows at project start and provide architecture documentation your legal counsel needs to complete a Privacy Impact Assessment. Azure deployments are scoped to Canada East or Canada Central by default when data must stay within Canadian borders. We can sign a data processing agreement as a vendor before work begins.

On-site visits are available for milestone reviews. Most clients find that structured async plus a fortnightly call removes the need, but if your team requires an in-person kickoff, we can arrange it as a separate line item.

Relevant work in similar markets

We do not have a published case study from a Montreal or Quebec client. The two completed engagements most relevant to Montreal's industries are:

EHS platform for a global manufacturing company (aerospace and pharma adjacent): We migrated a VB.NET monolith handling Environmental Health and Safety compliance to .NET 8 and React on Azure. The system managed Management of Change, Incidents and Events, Action Items, LMS training, and automated scheduling in a single undifferentiated codebase. The outcome was a modular, maintainable platform with improved scalability and global performance. The compliance-driven modernization pattern here is directly comparable to what aerospace and pharma companies in Montreal face when legacy quality-management systems need to meet current regulatory requirements.

Stock analytics platform for an investment management company: We replaced a spreadsheet-based analytics workflow with a role-authenticated Azure dashboard featuring automated data scraping and real-time financial metrics with category-based stock classification. This is wealth management, not aerospace or pharma, but the underlying problem, brittle manually operated data infrastructure blocking business capability, is the same problem legacy modernization addresses across sectors.

Neither project was in Montreal. We are naming them because the technical and compliance patterns match, not to suggest local market experience we do not have.

What legacy system modernization costs for a typical Montreal project

We price engagements in USD. Montreal clients work in CAD, so the final cost in Canadian dollars depends on the exchange rate at time of contracting. Our full breakdown is on the legacy modernization cost page.

Typical cost brackets for this service:

• Small scope ($60K to $120K USD): A single module extracted from a monolith using the strangler-fig pattern, with API gateway integration. Approximately 16 to 24 weeks. Suitable for one compliance-sensitive subsystem, such as a document management or incident tracking module.
• Medium scope ($120K to $250K USD): Multiple modules migrated to .NET 8 and containerized on Azure, including data-layer refactoring and integration surface documentation. Approximately 24 to 36 weeks.
• Full platform modernization ($250K to $500K USD): End-to-end migration of a legacy monolith to a modular architecture with full CI/CD pipeline. 36 to 52 weeks. Appropriate for enterprise platforms where the entire system must be replaced without a big-bang cutover.

For projects with Quebec Law 25 compliance scope, add 15 to 25 percent for regulatory overhead, which covers data-flow mapping, PIA documentation support, and legal review of the new architecture. For French localization built into the migrated UI, add $3,000 to $12,000 depending on screen count and content volume.

How to start working with us

Three steps from first contact to project start:

1. Discovery call (30 minutes): We learn what system you are running, what is blocking you, and whether the timeline and budget fit your situation.
2. Scoping document: We write a document covering the migration approach, parallel-run period, data-integrity validation plan, and cost range. You own it regardless of whether you hire us.
3. Project start: Once scope is agreed, we set up the collaboration environment on Teams, GitHub, and Jira or Linear, and begin the discovery phase within two weeks.

Can you work with Montreal companies remotely?

Yes. We have no office in Montreal or anywhere in Canada. Every engagement with Canadian clients is fully remote, with the ET morning window as the primary synchronous slot. We have 2 to 3 hours of same-day overlap each workday, which is sufficient for a structured sprint-based delivery cadence.

We can sign a data processing agreement covering Quebec Law 25 obligations for personal information handled during the engagement. Azure deployments can be scoped to Canadian regions so that data does not leave Canadian borders. This is a configuration choice that we document explicitly in the architecture design, not an additional service tier.

For regulated-industry modernization work, see our aerospace legacy modernization page for more detail on what we deliver in safety-critical environments.