Application Maintenance & Support
When the system must keep working, quietly and reliably
Not every engagement involves building something new. Some of the most important work in software is keeping what already works running — and doing it well enough that the people who depend on the system never have to think about it.
We provide long-term stewardship of production applications. Resolving issues, implementing enhancements, maintaining security, and ensuring the application continues to serve its users reliably as the business evolves around it.
We currently maintain production systems across four countries. Our standard is simple: the best possible outcome of our work is invisible. The system just works, every day, without surprises.
Production systems need more than occasional patches
- Your original development team has moved on. Nobody remaining fully understands the codebase.
- Bug fixes and enhancements are piling up, but your internal team is focused on new product development.
- Security vulnerabilities need patching, frameworks need updating, and changes must be made safely to a live system.
- You need ongoing .NET expertise without the overhead of a full-time hire — someone who understands your system deeply and is available when production issues arise.
The difficulty is not finding someone to fix bugs. It is finding someone who understands the system well enough to make changes without creating new ones.
How we take responsibility for production systems
Maintenance is not a lesser form of development. It is development with higher stakes and less room for error.
System onboarding and knowledge acquisition
We invest time understanding the existing system — architecture, codebase, deployment processes, known issues, and business context. We do not start making changes until we understand what we are working with.
Safe change management
Every change follows a disciplined process: code review, testing in staging that mirrors production, deployment with rollback capability, and post-deployment monitoring. We treat every update as a potential production risk.
Proactive monitoring and health checks
We implement monitoring for application health, performance metrics, error rates, and security indicators. We identify and address problems before they become incidents.
Continuous improvement beyond maintenance
Beyond fixing what is broken, we implement features and improvements that keep the application aligned with evolving business needs. Each enhancement integrates cleanly with the existing system.
AI Technologies we implement
Application Stack
.NET / .NET Core, C#, ASP.NET, Windows Services, Desktop Apps
Monitoring
Application Insights, Serilog, health checks, alerting
Databases
SQL Server, PostgreSQL, Azure SQL, performance tuning, backup verification
Cloud & Hosting
Azure App Service, IIS, Windows Server, Azure DevOps, CI/CD
Integration
Payment gateways, APIs, marketplace platforms, POS hardware, IoT devices
Our Capabilities
- Production bug resolution — diagnosis and fix across .NET, SQL Server, Azure, and frontend layers.
- Security patching — framework updates, dependency upgrades, vulnerability remediation.
- Performance optimisation — query tuning, caching, memory management, load testing.
- Feature enhancements — new functionality added safely to existing production systems.
- Deployment management — CI/CD pipeline maintenance, deployment execution, rollback procedures.
- Hardware integration support — POS peripherals, IoT devices, barcode scanners, CCTV systems.
Industries we serve
Retail — EPOS systems across hundreds of UK sites with zero tolerance for downtime during trading hours.
Art and auction — e-commerce reliability during live auctions where bids exceed $1 million.
Logistics — IoT asset tracking systems processing millions of transactions annually.
Government — counter-terrorism platforms where system availability is a matter of national security.
The common requirement is not the industry. It is the expectation that the system must work, reliably, every day — and that the consequences of failure are not abstract.
Engagement Models
Retainer Model
Fixed monthly hours for ongoing support, bug resolution, and enhancements.
Incident Based
On-call support for critical production issues with defined SLAs.
Full Stewardship
Complete ownership of application health, maintenance, and evolution.
Why choose us
Most firms treat maintenance as lesser work. We treat it as the most responsible work we do.
- We maintain systems where failure is not abstract: EPOS platforms where a crash means a shop cannot trade. Auction platforms where a pause during a $2 million sale is unrecoverable.
- The developers who learn your system are the ones who stay on it. You will not re-explain your architecture every quarter to a new team.
- We treat your system as if it were our own — understanding the business context behind every decision, not just the ticket in the queue.
- Transparent communication. Regular status reports, clear prioritisation, and honest assessment of system health.
The best maintenance is invisible. The system just works.
Need a reliable partner for a system your business depends on?
Let us discuss how we can take responsibility for your application’s long-term health and evolution.
