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Applications

Application Management & Support

You focus on your business. We manage the applications that help you run it.

Overwhelmed by the 24x7 demands of managing and maintaining applications? Turn to OnX for ongoing maintenance, monitoring, patching, and incident response for your application portfolio. That frees your team to focus on the work that moves your business forward.
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What happens when the person who built an app leaves?

When only a small number of people know how a critical application works, your business is one resignation, illness, or vacation away from a problem with no one to solve it. The smaller your IT team, the greater your exposure.

Even for organizations with strong internal teams, the math of supporting applications in-house is getting harder. Specialized skills are expensive and scarce. Around-the-clock coverage requires headcount that’s hard to justify. Patching, monitoring, and incident response steal time from more strategic priorities. And when something flatlines at 2 a.m. on a holiday weekend, the absence of a documented runbook becomes very costly very quickly.

 

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The OnX approach

Offload the burden of application management.

Managed application services from OnX offer a better approach, with redundancy built in, coverage tiered to your needs, and an accountable team that doesn’t quit, get sick, or go on vacation all at the same time.

In some cases, the same engineering bench that developed or modernized your application can continue supporting it in production. These OnX architects and developers bring a deep understanding of why the system was built the way it was. That continuity is part of how we build stronger foundations for our clients.

It also makes us a credible option even if you didn’t build the application with us.  We will onboard your application properly, document what isn’t documented, and get your environment to a stable, supportable state.

Application Management & Support capabilities

OnX Application Management & Support engagements are built around two parallel disciplines: the ongoing operational work to keep applications healthy and the engineering work that keeps them current.

Operational Support


Keep production applications healthy, available, and responsive at the coverage level your business requires. OnX owns the monitoring, alerting, and incident response end-to-end, with defined resolution targets tiered to application criticality and clear escalation paths.

Coverage scales to the business: 9-to-5, extended hours, 24x7x365 for priority issues, or full shift coverage for applications that can’t go offline. We offer onshore, nearshore, and offshore delivery options to match cost, time zone, and security requirements without compromising accountability.

Application Engineering


OnX delivers the deeper engineering work that keeps custom applications secure, stable, and improving over time. We've built agents for source-code-level patching, library upgrades, remediation of security findings, and bug fixes. This is the work that surface-level OS patching can’t address.

Build, test, and release discipline keeps production stable as the application evolves, with automated regression testing and QA gates to catch problems before users do. Small enhancements and feature additions are delivered alongside operational support, so the application gets better over time rather than just maintained in place. For applications OnX didn’t originally build, structured onboarding (including discovery, knowledge transfer, documentation, and runbooks) makes it possible to take over support cleanly.

Where to start

Advisory engagements

A CBTS advisory is a time-bound, fixed-fee engagement designed to give you a clear answer to a specific strategic question — fast.  

AI & Data Maturity Assessment

Best for organizations that want a clear, third-party read on where they stand on AI and data readiness and where to focus first.

You walk away with: 


  • Current-state assessment across both AI and data dimensions
  • Gap analysis against industry benchmarks and your own stated AI ambitions
  • Prioritized list of foundational gaps to close before scaling AI investment
  • Short-form executive readout deck for leadership alignment
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What success looks like

Three outcomes show up most consistently.

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Operational excellence

Applications that simply work. Issues caught before users notice. Releases that ship on schedule. An internal team that spends their days on new work, not yesterday’s tickets.

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Cost optimization

Lower TCO for the application portfolio plus the predictability of a monthly engagement. For most organizations, application managed services are cheaper than building the equivalent in-house capacity with around-the-clock coverage.

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Reduced risk

 Key-person risk replaced with team-based coverage. Patches applied on schedule. Incident response that follows a documented runbook. A documented audit trail.

“Organizations naturally focus on new features and capabilities, while technical debt often gets deferred until security, performance, or operational challenges make it impossible to ignore. By the time modernization becomes a priority, it’s rarely a point fix; it requires a coordinated approach across the entire environment. That’s where we help clients plan and execute successfully.”

Celio Casadei

Celio Casadei

 Senior Vice President, Professional Services & AI Consulting 

Don’t take our word for it

“OnX has been an incredible partner and really takes the time to understand our needs and our culture. They have been fantastic throughout and represent OnX professionally and with curiosity about our technology landscape.”

DirectorHealthcare

“Onx is exceptionally agile partner, consistently attentive to our needs and always quick to adapt. Their customer focus and responsiveness truly set them apart as a top-tier service provider.”

Deputy CTOBFSI

“OnX is a reliable and trusted partner whose deliberate focus on understanding our environment, challenges, and business outcomes helps us advance complex initiatives with confidence.”

ManagerGovernment

“The OnX account team consistently demonstrates professionalism, expertise, and a strong commitment to service. They translate customer requirements into practical, cost-effective solutions, making them a valuable partner.”

 Sr. ManagerBFSI

“The OnX account team consistently demonstrates professionalism, expertise, and a strong commitment to service. They translate customer requirements into practical, cost-effective solutions, making them a valuable part.”

DirectorUtilities

Management is one part of the application lifecycle.

OnX Application Management & Support is most valuable when paired with the modernization or development work that puts the application in a supportable state.

What makes the difference

National expertise with local accountability.

For 40+ years, OnX has helped Canadian organizations solve complex technology challenges. Our national reach provides access to deep technical capabilities, industry specialists, and leading technology partners, while our local teams remain accountable for outcomes and invested in your success. We listen before we recommend and stay engaged throughout delivery.

Industry knowledge that matters. 

Regulatory requirements and operational realities shape your technology decisions. OnX brings deep experience supporting complex, highly regulated organizations through modernization, cybersecurity, cloud transformation, and AI adoption. With a deep understanding of governance, compliance, and security, we know how to deliver outcomes within those constraints.

Partnership that goes the distance.

Technology initiatives succeed when the right partner stays committed after implementation. OnX works alongside you from strategic planning and procurement to modernization, managed services, and AI transformation. We strive for partnerships built on trust, accountability, and a shared commitment to long-term success.

Related insights 

Frequently asked questions 

What are application management services (AMS)?

Application management services, commonly called AMS, are managed services arrangements in which an external partner takes responsibility for the ongoing management of an application or application portfolio. AMS typically covers maintenance, monitoring, incident response, patching, release management, and enhancement work, delivered against agreed service levels. OnX Application Management & Support is a full AMS offering, with flexible coverage tiers and the option to combine onshore, nearshore, and offshore delivery.
What coverage models does OnX offer?

OnX structures coverage around the business need. Common tiers include standard business hours, extended business hours (early-morning to late-evening windows), 24x7 priority-one support (round-the-clock coverage for the highest-severity issues), and full shift coverage (dedicated engineers online during every operating window). Most clients combine tiers: 24x7 for revenue-critical applications, business-hours for the rest. The monthly fee scales with the coverage level chosen.
Can OnX support an application your team didn’t build?

Yes. Many of our managed services engagements involve applications OnX didn’t build. The transition does require a structured onboarding, which is typically a one-time investment that covers discovery, knowledge transfer, documentation, runbook development, and identification of any remediation work needed before the application is fully supportable.
How does OnX price application management services?

Application management services are usually priced as a monthly retainer that covers a defined block of hours and the agreed coverage tier. The fee accounts for the on-call commitment as much as the active work; having a team ready to respond to an incident has a cost regardless of whether incidents occur in a given month. Work that exceeds the retained hours is billed at agreed rates. Major projects, such as net-new development, large feature releases, or modernization, are scoped separately since AMS isn’t designed to absorb project-scale work without project-scale governance.
How is the OnX approach to application management different?

Three things distinguish how OnX engages on application management and support. The first is continuity. The same engineering bench that builds or modernizes an application can continue supporting it in production, so institutional knowledge stays with the system. The second is flexibility. Our coverage tiers, delivery models, and engagement structures are shaped to your business reality, not to a fixed package. The third is scope. We don’t treat AMS as a ticket-resolution operation. The engineering discipline that keeps an application healthy long term is part of the engagement, not an add-on.

Keep your applications strong and healthy.

You need your applications to stay reliable, secure, and current for as long as your business depends on them.
OnX helps make that a predictable outcome.