Real Projects. Real Results.

11 years solving expensive problems for businesses that can't afford downtime.

Experience with systems serving F&B, retail, and enterprise clients across multiple countries. From enterprise POS systems handling thousands of daily transactions to automated business processes eliminating manual work—here's how complex problems get solved with clean, maintainable code.

Industries: Major F&B and retail brands | Airport duty-free operations | Loyalty programs managing millions of points | Pet service businesses
Scale: Production systems handling high transaction volumes, multi-country deployments, compliance-critical environments

High-Volume Performance Crisis Resolution

Retail/Loyalty | Enterprise | Critical Production Issue

⚠️ Problem

Automated point expiry system worked flawlessly for years—until a new customer with extremely high transaction volumes exposed critical performance bottlenecks. System couldn't handle the load. Processing times skyrocketed. Production environment at risk. Business operations threatened.

✅ Solution

Worked under high pressure to identify performance bottlenecks in production system. Analyzed query patterns, examined data access patterns, and located the chokepoints. Implemented targeted optimizations without disrupting the working automation. Deployed custom optimization program during off-hours to handle accumulated data issues while system remained operational.

🎯 Result

Crisis resolved within half a day. System now handles high-volume customers that would have crashed it before. Zero business disruption during fix. Demonstrated ability to diagnose and resolve critical performance issues under pressure in production environment. Customer onboarding proceeded successfully.

💡 Facing performance issues or system failures? Our Legacy System Rescue or System Stabilization packages can help.

.NET Framework SQL Server Performance Optimization Production Crisis Management
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Advanced Pet Grooming Booking & Automation System

Pet Services | Small Business | 5 months

⚠️ Problem

Legacy web booking system had minimal features and no customer-facing capabilities. Staff spent hours coordinating schedules manually—checking groomer availability, driver routes, pet size restrictions, appointment reminders. Every booking required manual intervention. Scaling was impossible.

✅ Solution

Transformed backend-only system into full customer-facing platform. Built intelligent booking automation (groomer availability, pet size restrictions, seniority-based scheduling). Created automated driver scheduling with area code restrictions. Implemented package subscriptions with automatic point awards. Added automated email system for confirmations, reminders, and low-point alerts—all triggered at API level. Leveraged Claude AI to accelerate development while maintaining strict code review and testing to ensure clean, maintainable implementation.

🎯 Result

Every feature delivered with minimal issues. What required constant manual coordination now runs autonomously. Staff freed from scheduling grind—system handles complex logic automatically. Customers receive instant confirmations and reminders without staff intervention. Business can now scale without hiring for coordination. AI-assisted development accelerated delivery while human oversight kept code maintainable.

💡 Need similar automation? Check our Business Automation package

.NET Web API SQL Server Email Automation AI-Assisted Development
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Payment Terminal Integration Middleware

Retail POS | Enterprise | Initial Build: Few Weeks | In Production Since

⚠️ Problem

Multiple credit card terminals needed POS integration. All terminal logic was embedded directly in POS code—jumbled in a single file. Debugging was a nightmare. Each new terminal integration became increasingly complex and risky. Developers wasted hours reverse-engineering tangled code.

✅ Solution

Architected and extracted terminal integration logic into separate middleware program with clean structure. Created project base framework—developers just implement terminal-specific commands without handling connection logic. Physically separated each terminal into dedicated files. Added extensive logging for troubleshooting. Transformed chaotic embedded code into maintainable, scalable architecture.

🎯 Result

Decision proven superb over years of use. New terminal integrations now take a fraction of original time. Debugging became straightforward with comprehensive logging. Developers work within established structure instead of reverse-engineering spaghetti code. Following the original pattern would have made maintaining numerous terminals a nightmare—instead, it's a clean system that's easy to extend.

.NET Middleware Architecture Hardware Integration Logging & Diagnostics
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Offline POS Sync Optimization & Staging Database Innovation

Retail POS | Enterprise | Performance & Testing Enhancement

⚠️ Problem

Offline POS sync was painfully slow—tables downloaded one-by-one sequentially. Testing polluted production servers with fake outlet data. Image downloads crawled through web service middleman, consuming expensive bandwidth. Sync times hurt productivity and infrastructure costs kept climbing.

✅ Solution

Introduced staging local database by dynamically cloning tables through existing Entity Framework middleware—zero application code changes needed. Enhanced sync with multi-threading—smaller tables download in parallel while large tables process. Redesigned image downloads to go directly to blob storage, bypassing web service entirely.

🎯 Result

Sync time now determined by single largest table instead of cumulative sequential processing. Test data pollution eliminated. Feature testing vastly improved. Direct blob downloads slashed infrastructure costs by cutting web service bandwidth consumption. Major performance gains with minimal code changes.

.NET Multi-threading Entity Framework Azure Blob Storage Performance Optimization
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Retail POS Module Refactoring & Architecture Overhaul

Retail POS | Enterprise | Multi-year Continuous Improvement

⚠️ Problem

Legacy retail POS had UI and business logic tightly coupled—no structured MVVM pattern in sales module. Code was monolithic, changes were risky, maintenance was painful. Every feature addition threatened to break existing functionality. Developer productivity suffered.

✅ Solution

Recognized architectural flaw early and introduced properly structured code. MVVM pattern introduced to sales module where none existed before. Once established, all subsequent modules coded with proper structure and separation of concerns. Continuously identified and optimized inefficient code over years, setting higher standard for code quality.

🎯 Result

MVVM-based modules proven easy to maintain and issue-free. Pioneered structured practices that transformed how the team builds features. Other developers now follow similar patterns. Tangled codebase gradually became maintainable as structured modules replaced legacy code. Established architectural foundation enabling reliable, testable development.

.NET MVVM Pattern Architecture Refactoring Code Quality Leadership
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Developer Productivity Framework Enhancements

Internal Tooling | Enterprise | Continuous Improvement

⚠️ Problem

Development workflows killed productivity. Adding reports required modifying 4+ files (hours of work). System settings jumbled in single file—error-prone mess. Enum-string pairs maintained manually with high risk of sequence mismatches. Every feature took too long and introduced unnecessary bugs.

✅ Solution

Printing: Restructured to require only 1 main file + 1-2 lines elsewhere (down from 4+ files). Settings: Separated jumbled settings into module-specific files, created framework that auto-generates UI from data models—no manual UI or save/load code needed. Enums: Refactored fragile positional dependencies into structured code that eliminates sequence mismatch risks.

🎯 Result

New reports: hours → minutes. New settings: trivial instead of error-prone. Enum refactoring completely eliminated maintenance risk. Built reusable frameworks benefiting all developers. Improvements compound over time—every new feature leverages cleaner, safer patterns. Developer velocity dramatically increased.

.NET Framework Design Code Generation Developer Experience
✈️

Airport Retail POS Compliance & Major Enhancement

Transportation/Retail | Enterprise | Completed | Occasional Maintenance

⚠️ Problem

Airport duty-free operations faced strict regulatory compliance requirements. System lacked flight tracking, tariff code restrictions, passport-based purchase limits, and proper audit trails. Manual compliance checks risked customs penalties. Cash reconciliation had no double-verification—audit failures loomed. Non-compliance could shut down operations.

✅ Solution

Developed comprehensive flight info tracking module for compliance. Implemented tariff code system with configurable purchase limits based on passport type—automatic regulatory adherence. Built stock overview reports for audit documentation. Enhanced cash reconciliation with mandatory double verification workflow plus post-reconciliation amendment and acknowledgement for regulatory traceability. Extensive testing ensured reliability.

🎯 Result

High reliability in compliance-critical environment—minimal issues. Tariff restrictions prevent regulatory violations automatically, protecting business from customs penalties. Double verification eliminated financial discrepancies. System passed compliance audits and regulatory reviews. Can add new compliance features quickly without risking existing controls. Performance remains responsive despite growing complexity.

.NET Framework SQL Server POS Systems Compliance & Reporting Regulatory Controls

Technical Expertise

Automation & Integration

  • Automated business process workflows
  • Batch processing & scheduled jobs
  • Email notification automation
  • Third-party system integration
  • Payment terminal integration
  • API development & integration

Database & Performance

  • Database design & schema modeling
  • SQL Server optimization expert
  • Query performance tuning
  • Index strategy & implementation
  • Complex query rewriting
  • Database troubleshooting
  • Large-scale data processing
  • Design for reporting & analytics

Backend Development

  • .NET Framework / .NET Core
  • C# application development
  • Web API design & implementation
  • Windows Services
  • Middleware architecture
  • POS system development

Architecture & Refactoring

  • Legacy system modernization
  • Code refactoring & restructuring
  • Separation of concerns
  • System architecture design
  • Performance bottleneck identification
  • Technical debt reduction

Have a Legacy System Issue or Manual Workflow Problem?

Whether you need to fix critical bugs, automate time-consuming processes, optimize performance, or rescue a failing system—expertise like this can transform your operations.

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