Case Study 01
Scaling FinTech Gateways: Why We Chose CQRS over Standard CRUD
A technical breakdown of resolving database bottlenecks in a high-volume payment gateway, reducing dashboard load times by 83%.
AVAILABLE FOR SENIOR / STAFF ROLES & MODERNIZATION ENGAGEMENTS
I bridge legacy systems››modern architecture
Full-Stack Engineer with 5+ years modernizing regulated enterprise systems across FinTech, life sciences, and automotive ERP — plus microservices architecture, AI/agentic integration, mobile delivery, and client-facing technical leadership.
Rare specialty: hands-on modernization of Rocket UniVerse/Pick Basic — a 40+ year old multi-value database technology that still quietly runs much of the automotive dealership industry today.
LEGACY (1985)MODERN (2026)
* SUBROUTINE: RECALC.LEDGER.BAL
READ ACCT.REC FROM F.LEDGER, ACCT.ID ELSE
CALL ERR.LOG("ACCT NOT FOUND")
END
BAL = SUM(ACCT.REC<TXN.AMOUNTS>)
WRITE ACCT.REC ON F.LEDGER, ACCT.ID
Real dealership accounting logic — legacy database language (Pick Basic), before modernizationrocket_universe.b
Capabilities
Modernization is the headline. It's not the whole story.
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Legacy Modernization
Rocket UniVerse/Pick Basic to .NET, Strangler Fig & Anti-Corruption Layer patterns, incremental cutover without downtime.
→ See current work at IDS
⌁
AI & Agentic Integration
MCP servers, RAG pipelines, and agentic workflows — in active development, bridging legacy ERP data into AI-accessible tooling.
→ Currently in progress at IDS
▣
Microservices & Architecture
Clean Architecture, DDD, CQRS, event-driven systems. Driving architectural decisions, not just implementing them.
→ See full stack breakdown
◫
Mobile & Cross-Platform
React Native (Expo) delivery alongside web — same backend, consistent experience across platforms.
→ Live in IDS dealership ERP
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Client Delivery & Estimation
Technical estimation, SOWs, and direct client/stakeholder meetings across distributed international teams.
→ See POMS Corporation role
◈
Teaching & Mentorship
Visiting Faculty at MAJU (2022–2026) — Software Architecture & Web Engineering, plus FYP mentorship and technical interviewing.
→ See MAJU faculty role
Industries
Three regulated industries. One pattern: making old systems trustworthy again.
RECONCILED
FinTech & Banking
Payment gateways, digital banking, card production. Ledger reconciliation and transaction discrepancy resolution — $100k+ resolved.
VALIDATED
Life Sciences
MES-based ERP for regulated pharmaceutical manufacturing. Manufacturing recipes, reporting, and production deployment across international teams.
MODERNIZING
Automotive ERP
Dealership CRM/ERP bridging a legacy Rocket UniVerse/Pick Basic core with modern .NET 10 and React — live, in production, today.
Experience
Five years, five regulated systems, one thread: bridging what's there to what's next.
I'm a Full-Stack Engineer with over 5 years of experience building and modernizing enterprise-grade applications across FinTech, life sciences, and automotive ERP. My specialty is bridging legacy Rocket UniVerse/Pick Basic systems with modern .NET and React architectures — plus direct back-office financial experience in ledger reconciliation and transaction discrepancy resolution. Whether it's implementing CQRS to drop dashboard load times from 60 seconds to under 10 seconds, or designing fault-tolerant message brokers with RabbitMQ and Redis, my focus is always on security, scalability, and measurable business impact.
May 2025 – Present
FullStack Software Developer
- ▸Bridging legacy Rocket UniVerse/Pick Basic with modern .NET services — architecting modular RESTful APIs (.NET 6, PostgreSQL, RabbitMQ) using SOLID and DDD that integrate seamlessly with the legacy database core.
- ▸Support back-office ledger reconciliation for the Accounting Module and the team's ongoing .NET 6 → 10 migration.
- ▸Developed dynamic client-side interfaces and cross-platform mobile components using React and React Native to fulfill end-to-end feature requirements for enterprise dealership solutions.
- ▸Contributed heavily to architectural decisions and team-wide technical documentation by authoring comprehensive SOPs and Technical Specifications for the Accounting Module.
- ▸Implemented rigorous testing strategies and established production reliability for mission-critical systems, utilizing Jenkins CI/CD pipelines and SonarQube.
.NET 6 → 10Rocket UniVersePick BasicReactReact NativePostgreSQLRabbitMQDDD
Jan 2025 – Apr 2025
Software Developer
- ▸Designed and implemented microservices-based server-side solutions for a leading FinTech gateway using .NET 6 & 8, engineering high-performance caching and messaging layers with Redis and RabbitMQ.
- ▸Optimized database structures by implementing CQRS, dedicated read databases, and normalized transaction tables, reducing core dashboard load times from over 60 seconds to under 10 seconds.
- ▸Resolved $100k+ in transaction discrepancies via ledger reconciliation, integrating third-party systems for secure account registration and financial transactions.
.NET 8MicroservicesRedisCQRS
Jul 2024 – Dec 2024
Software Engineer
- ▸Developed complex features and high-performance desktop user interfaces utilizing Windows Presentation Foundation (WPF) for Trafix OMS, ensuring data integrity for a globally redundant trading platform.
- ▸Refactored existing code to migrate application from .NET Framework 4.8 to .NET 8, resolving breaking changes to guarantee core stability for globally active clients.
- ▸Executed rigorous System Integration Testing (SIT) and Unit Testing to ensure zero-downtime software releases.
WPF.NET 8.NET Framework
Aug 2023 – Jun 2024
Software Engineer
- ▸Engineered secure backend features and complex stored procedures for digital banking platforms, ensuring seamless collaboration with stakeholders.
- ▸Executed a massive customer data migration, ensuring 100% data integrity and security with zero downtime.
- ▸Developed critical backend services for a Bank CRM upgrade, including Windows services for automated Eform updates.
C#SQL ServerDigital Banking
Nov 2021 – Jul 2023
Technical Consultant
- ▸Engineered C#-based logic and complex data reports for an MES-based ERP tailored for highly regulated pharmaceutical manufacturing.
- ▸Collaborated seamlessly with distributed international client teams to deliver production deployments and technical training.
C#ERPMES
Jul 2020 – Oct 2021
Software Developer
Sentore-Tech
- ▸Built and maintained backend services and batch processing jobs that handled 10,000+ concurrent API validations.
- ▸Developed inventory and POS features using .NET Framework and SQL Server.
- ▸Implemented web and desktop interfaces with ASP.NET MVC and WinForms for day-to-day operations.
ASP.NET MVCWinFormsBatch Processing
Sep 2022 – Feb 2026 · Part-time
Visiting Faculty, Software Engineering
- ▸Instructed core technical courses including Software Architecture and Web Engineering.
- ▸Mentored Final Year Projects (FYP), translating real business problems into production-ready software.
- ▸Ran technical interviews and code evaluations for software engineering cohorts.
MentorshipSoftware Architecture
Education & Certifications
Skills
The stack, old and new.
Legacy & Modernization
Rocket UniVersePick BasicStrangler FigAnti-Corruption Layer
AI & Agentic
MCPRAGAgentic Workflows
Backend & Architecture
C#.NET 6/10ASP.NET Core MVCWeb APINode.jsMicroservicesClean ArchitectureRESTful APISOLIDDDD
Frontend & Mobile
ReactReact Native (Expo)JavaScript/TypeScriptHTML5/CSS3Material UIBootstrapWPFWinForms
Databases & Data Modeling
PostgreSQLSQL ServerOracleMongoDBEntity Framework CoreDapperRedis
Cloud, DevOps & Messaging
Microsoft AzureDockerJenkinsRabbitMQCQRSCI/CD Pipelines
Testing & Version Control
JestNUnitSeleniumPlaywrightSpecFlowGit/GitHubAzure DevOpsJira
Delivery & Leadership
Technical EstimationSOWsClient MeetingsMentorship
Proof of Work
Two write-ups on the architecture decisions behind the numbers above.
Case Study 02
Handling API Idempotency in .NET 8
Designing a bulletproof idempotency handler using Redis to prevent duplicate transactions in distributed banking systems.
Resumes