Application Support That Keeps Critical Systems Reliable
We maintain, monitor and improve the applications your business depends on, whether we built them or someone else did, so issues are fixed quickly, security stays current and the system keeps pace with the business.
Core stack.NET / C# · ASP.NET Core · .NET Framework · Angular · React · Microsoft Azure · SQL Server · Azure DevOps
When Your Applications Need a Dedicated Owner
Support usually becomes urgent after one of these has already caused a problem.
We start with a health check.
Before taking over support, we review the code, infrastructure and open issues, so priorities are clear from day one.
Compare engagement modelsThe original developers have moved on
The team or vendor that built the application is no longer involved and nobody owns it now.
Issues are fixed only when they become urgent
Bugs and slowdowns pile up until one of them affects customers or operations.
Security updates keep slipping
Frameworks, libraries and servers fall behind on updates because nobody has time.
Small improvements never get done
A backlog of small changes waits because the team is busy with new projects.
What Our Support Covers
Pick one to see what it usually involves and how we typically build it.
Bug fixing and issue resolution
Investigating and fixing defects, with priorities agreed with you so the issues that matter most are handled first.
- Prioritized issue queue
- Root-cause investigation
- Fixes tested before release
Monitoring and performance
Monitoring availability, errors and performance, so problems are spotted and addressed before users report them.
- Error and uptime monitoring
- Performance tuning
- Database optimization
Security and platform updates
Keeping frameworks, libraries, servers and certificates up to date and addressing vulnerabilities as they’re found.
- Framework and library updates
- Security patching
- Dependency and vulnerability checks
Enhancements and small changes
Working through the backlog of improvements and small features that keep the application useful as the business changes.
- Backlog of small features
- UI and usability improvements
- Report and workflow changes
Taking over existing applications
A structured handover of applications built by another team, including code review, documentation and knowledge transfer.
- Code and infrastructure review
- Documentation of how it works
- Stabilization plan
Hosting, deployment and backups
Managing hosting, deployments, backups and environments, so the application runs on infrastructure someone is looking after.
- Hosting and deployment management
- Backup and recovery checks
- Environment management
Stabilize First. Then Improve.
Every engagement follows the same problem-first Systems Engineering Method we use across AppPotter.
Health check
We review the code, infrastructure, monitoring and open issues before taking over.
Agree priorities and response
Severity levels, response expectations and communication are agreed with you up front.
Stabilize
Critical issues, security gaps and missing monitoring are addressed first.
Maintain
Fixes, updates and monitoring run as a regular routine, not only when something breaks.
Improve
Enhancements from the backlog are planned and delivered alongside maintenance.
Review regularly
Regular reviews of issues, performance and priorities keep support aligned with the business.
What Changes When the Process Runs on the Right System
We agree on what to measure during discovery, so success is defined before the build starts, not after launch.
Before: Nobody owns the application
After: A named team responsible for the application
Before: Issues are fixed only when urgent
After: A prioritized queue with agreed response expectations
Before: Security updates keep slipping
After: Frameworks and dependencies kept current
Before: Problems are reported first by customers
After: Monitoring that catches issues early
Before: Small improvements never get done
After: Enhancements delivered alongside maintenance
Chosen for Your Systems, Not Our Preferences
We most often support applications built on Microsoft .NET, Angular and React, including older .NET Framework systems. Other stacks are assessed during the health check.
Where we have the deepest production experience
- .NET / C#Backend
- ASP.NET CoreAPIs & services
- .NET FrameworkLegacy applications
- AngularFrontend
- ReactFrontend
- Microsoft AzureCloud
- SQL ServerData
- Azure DevOpsCI/CD
Also used when the project calls for it
- Legacy frontends
- Monitoring
- Data
- Cloud & DevOps
- Testing
Senior Engineers, Directly Involved
- Founder-led delivery
Parth and Umesh are personally involved in every engagement.
From scoping the work to standing behind its outcome, backed by Parth's 14+ years of enterprise technology and delivery experience.
Meet our leadership - Current engagement · under NDA
A long-term software engagement with a US-based technology company.
Client identity and project details are undisclosed due to confidentiality obligations. We treat your work the same way.
See our approach
Ways to Work Together
- Advisory & Discovery
Short-term Strategy Engagements
For a focused, short-term engagement - an assessment, an architecture review, or technical due diligence - before any build begins.
- Comprehensive architecture reviews
- Due Diligence of your tech stack
- Roadmap and Estimation
- Fixed Price
Fixed Cost Model
For clearly-scoped integration or build work, where the outcome and boundaries are already well defined.
- Change Management process
- Milestone-based delivery
- Quality & SLA Commitments
- Dedicated Team
Dedicated Product Engineering Team
For long-term product or systems work - a sustained AppPotter engineering team working against your roadmap, not rotated project to project.
- Seamless onboarding and roadmap planning
- Fixed Monthly Retainer
- PO/Tech-lead Collaborations
Whichever structure fits, Parth and Umesh are personally involved, from scoping the engagement to standing behind its outcome.
Meet our leadershipPart of Business Systems Engineering
Connecting the operational systems, workflows and data a growing business runs on. Support is often where long-term partnerships start: the team that maintains a system understands it best.
Application Support FAQs
Still unsure? A 30-minute conversation usually answers the rest.
Book a callYes. We start with a health check and a structured handover, reviewing the code, infrastructure and documentation before taking over.
Response expectations are agreed up front by severity, so critical issues are handled first. They’re written into the support arrangement, not left to chance.
Maintenance keeps the application running, secure and up to date. Enhancements add or change functionality. Most support arrangements include both, with priorities agreed together.
Usually as a monthly retainer sized to the application and the level of cover, or as time and material for less predictable work. We recommend a model after the health check.
Yes. You get regular updates on issues fixed, changes made and anything that needs your decision.
Often it does. The team that maintains a system understands it well, which makes them a natural choice for its next phase of development.
Tell Us Which Application Needs Looking After
We’ll review its current state and recommend the right level of support, from stabilization to ongoing maintenance and improvement.
Book a GTM Systems Assessment30-minute call · No obligation · No sales pitch