Kim Isiah Valencia CLSSYB
Senior Software Engineer
C# / .NET | ASP.NET Core | Web API | Microservices | AI-Assisted Development
Summary
Senior Software Engineer with 10+ years of experience designing and developing enterprise applications using C#, .NET, ASP.NET Core, Web API, SQL Server, and modern frontend technologies including Angular and React. Experienced in leading engineering teams while remaining hands-on in software development, and built reusable AI agents that accelerated engineering productivity. Proven experience delivering payroll, ERP, inventory, e-wallet, HR, and business management systems.
Technical Skills
- Languages: C#, JavaScript, TypeScript
- Backend: C#, .NET, ASP.NET Core, ASP.NET MVC, Web API, REST APIs, Entity Framework, EF Core, Dapper
- Frontend: Angular, React, HTML, CSS, jQuery
- Databases: MS SQL Server, MySQL, Firestore, Supabase
- Messaging & Infrastructure: RabbitMQ, Docker, Azure, Firebase, n8n
- Architecture & Design Patterns: Microservices, CQRS, TDD, Clean Architecture, REST, SOLID
- Software Testing: MSTest, Playwright
- AI Stack: GitHub Copilot, Claude Code
- Integrations: SharePoint, Azure AD, NetSuite, WordPress
Experience
Cloudstaff
Pampanga, Philippines
—
- Senior Software Engineer / Lead Developer —
- Software Engineer II —
- Led the modernization of a monolithic ASP.NET MVC application into an Angular and microservices architecture, increasing backend processing throughput from 60 to 500 records per minute.
- Optimized payroll processing, reducing computation time from 2 hours to approximately 30 minutes and shortening the overall payroll cycle by 1 day.
- Led a team of 5 while continuing hands-on development, maintaining delivery timelines and minimizing impact on team velocity.
- Designed a real-time staff location transfer strategy that preserved payroll data integrity and eliminated 3–4 hours of manual work per payroll cutoff.
- Delivered an automated Alphalist solution for Finance, reducing processing time from 1 week to 1 day.
- Improved application reliability and stability, eliminating mandatory standby support during payroll processing and reducing operational costs.
- Introduced unit testing and application logging, improving feature reliability, computation accuracy, and issue troubleshooting.
- Developed and maintained a payroll application using C#, ASP.NET MVC, and SQL Server, supporting 20 users and processing 10,000+ records per payroll cutoff without additional server scaling.
- Developed reusable AI agents and workflows to automate repetitive engineering tasks, improving developer productivity and reducing time spent on routine development tasks from an average of 2–3 days to 3–4 hours. Created a workflow that fetches JIRA ticket details, hands over to a software architect agent to create an implementation plan, then hands the plan to a software engineer agent, with loops to code reviewer and tester agents.
Iloilo Supermart, Inc.
Iloilo City, Philippines
—
- Senior Software Engineer / Team Leader —
- Revamped the warehouse inventory system, improving inventory accuracy from 70% to 99% by supporting variable package quantities and strengthening inventory controls.
- Led development of the company’s e-wallet system as a digital alternative to gift cheques, reducing paper costs and improving transaction tracking and auditability.
- Launched the company’s WordPress-based e-commerce platform in 1 week, generating approximately 200 orders per day and expanding the company’s digital sales channel.
- Developed a custom WordPress e-commerce plugin integrating the company’s e-wallet for seamless payment processing without relying on credit cards.
- Developed an online e-wallet top-up system integrated with Maya Payments, enabling customers to reload balances remotely and reducing in-store processing time.
- Built a mobile sales order application integrated with NetSuite, reducing order processing time from at least 1 day to approximately 1 hour.
- Proactively identified and resolved vulnerabilities and bugs in the mobile inventory scanner, strengthening inventory controls and preventing process shortcuts that could affect accuracy.
- Led a team of 3 engineers and QA professionals while remaining hands-on in development, maintaining a 2–3 day delivery cycle from development to production.
Awards & Recognition
- Dev Chapter Weekly Champion
- AI Velocity Award
- Pinnacle Rockstar
- Code Disruptor Champion
- Certified Lean Six Sigma Yellow Belt
- Payroll Squad Member of the Year
Community & Volunteer
WordCamp Philippines 2026 — Iloilo
Operations Team Lead / Organizer- Led event operations covering ticket sales, event merchandise, vendor coordination, and cross-team execution.
- Collaborated across Venue, Graphics, Web, and Sponsorship teams to address manpower gaps and meet tight event deadlines.
- Took on multiple cross-functional responsibilities to ensure smooth event preparation and execution.
- Created an automation using Playwright to generate coupons for local ticket purchases, reducing creation time from 3 minutes to 10 seconds per coupon.
WordCamp Asia 2025 — Manila
Volunteer- Supported registration, attendee operations, speaker assistance, and event logistics.
WordCamp Iloilo 2023 — Iloilo
Volunteer- Supported speaker and technical operations.
Education
- Bachelor of Science in Information Technology AMA Computer College, Iloilo Cum Laude