Hello, I'm
Shaun Alonzo
Senior Software Engineer | .NET | AI-Ready
Senior Software Engineer with 9+ years of experience in .NET, AWS, React, and SQL. Focused on platform stability, API reliability, and clean architecture — enhanced by AI tools like Copilot and ChatGPT for faster, smarter delivery.
Get In Touch
Get In Touch
I'm currently open to new opportunities and would love to hear from you.
Manila, Philippines
contact@shaunalonzo.com
Skills & Technologies
.NET / C#
ASP.NET Core
React.js
Angular
AWS
Microsoft Azure
SQL Server
Redis
Node.js
Next.js
Technical Design
Code Review
CI/CD Pipelines
Jenkins
Azure DevOps
Microservices
Agile / Scrum
Work Experience
Jul 2024 - Present
Senior Engineer
- Led and contributed to migrating several services to .NET 8, improving performance and maintainability.
- Implemented pricing logic updates, contract adjustments, billing overrides, and rate calculations for Domain Billing, Booking, Report, and Agency API.
- Refactored order item dispatching patterns, improved subscription modification rules, and optimized agency-level listing plan handling.
- Introduced logging scopes, retry policies, and deadlock simulations to enhance system resilience.
- Built features like Social Boost Quotes, Listing Quote APIs, and Agency Note Endpoints to expand platform capabilities.
- Refactored existing codebases, optimized database queries, and contributed to test automation.
Mar 2023 - Jul 2024
Software Engineer
- Led the migration of Trade Platform microservices from .NET Core to .NET 6, improving performance and maintainability.
- Transitioned CI/CD pipelines from TeamCity and Octopus to the internal standard Jenkins pipeline, significantly enhancing log visibility and metrics monitoring.
- Ensured the stability of critical services, optimized background jobs, and improved error handling mechanisms.
- Migrated multiple microservices to Jenkins-based deployments, aligning with Domain's internal best practices.
Nov 2021 - Mar 2023
Senior Software Engineer
- Led the transition of Redbook.com.au from a dated 2000s design to a modern, responsive interface, improving customer retention and increasing website traffic.
- Developed "Can't Find Your Car" feature allowing users to list vehicles without selecting from a predefined model database, resulting in 200+ new advertisements.
- Designed and distributed A/B Testing and Customer Satisfaction Survey protocols, enabling product teams to measure feature effectiveness.
- Worked across C#, Angular, React.js, and AWS, ensuring seamless integration of new features while maintaining high performance.
Aug 2020 - Nov 2021
Senior C# .Net Developer Specialist
- Developed the MoneyMe+ WooCommerce plugin, generating over 1000 leads within first 2 months of launch from e-commerce space.
- Maintained APIs for loan application submissions with automated text and email communications at various stages of the loan process.
- Created public API for third-party loan application submissions from House and Lot Sellers and E-commerce companies, ensuring compliance with legal regulations.
Dec 2019 - Jul 2020
Lead Software Engineer
- Oversaw customer deal submissions from UI to third-party lender APIs.
- Optimized automated deal submission worker, improving response time from 8 to 2 seconds on service with 15,000 daily transactions.
Jul 2019 - Dec 2019
Mid Software Engineer
- Worked as part of a cross-functional team on the Deals module of dealercenter.com
- Led implementation of reports designed by Business Analysts, providing insights into warehouse stock and customer activity.
- Contributed to customizable table reports, allowing users to modify columns and save configurations.
May 2017 - Jul 2019
Dev Lead / Software Engineer III
- Development Lead for the CAAPS project, delegating tasks and contributing to business-critical features.
- Led project creating templates for future company projects using Angular, .NET Core, and microservices with multi-tenancy support.
Jul 2016 - Jun 2017
Software Engineer II
- Worked on Gurukool Web App and wrote documentation for future development.
- Developed main web solution and internal config-changing applications for CAAPS.
- Received recognition leading to hiring of two additional developers for the CAAPS team.
Feb 2016 - Jul 2016
Software Engineer I
- Completed comprehensive training in .NET, Angular JS, and SQL Server.
- Gained experience through shadow development on the Gurukool quiz duel web application.
- Contributed to new features like leaderboards and expanded question types to enhance user experience.
Apr 2014 - Jun 2014
IT Intern
- Created reports from database using SQL commands and report generating tool in Microsoft Visual Studio.
- Documented a C# project by Exakt.
Featured Projects
Redbook Website Redesign
Led the transition of Redbook.com.au from a 2000s aesthetic to a modern design, revitalizing website appearance while maintaining existing customers and boosting website views.
C#
React
AWS
.NET
MoneyMe+ WooCommerce Plugin
Developed an e-commerce plugin that generated over 1000 leads within first 2 months of launch, connecting sellers with financing options.
C#
JavaScript
Azure
.NET Core
WordPress