Software Engineer, Architect & Technical Lead

Louiery Sincioco

Complex Systems. Clear Solutions.

I design and build custom software for teams in the United States and the Philippines, using C#/.NET, Azure, web and mobile technologies, and AI-assisted development.

15+Years in Software Engineering
20Professional Certifications
USMCVeteran & Technical Leader
Louiery Sincioco in a suit and tie

Software Engineering Services

Custom Software Development with AI

Software engineering and architecture for businesses in the United States and the Philippines. I use AI and Agentic AI development tools to support implementation, with human direction, code review and testing throughout the work.

Custom Business Software

.NET and Azure applications, internal tools, APIs and workflows shaped around how your team works. PMT brings planning, software delivery and QA into one application.

Explore PMT →

Web and Mobile Applications

Responsive web experiences and native mobile applications with clear interfaces and maintainable code. Life 2.0 demonstrates an iPhone and iPad app for activities and routines.

Explore Life 2.0 →

AI Integration & Agentic Workflows

Connect AI capabilities to software and direct AI agents through focused development tasks. Sin AI Prompt supports the preparation of rich prompts and image annotations.

Explore Sin AI Prompt →

Experience Across Industries

Industry and Product Experience

Different industries. A shared focus on secure, useful software.

Explore My Experience
Financial ServicesTools for informed decisionsPortfolio interfacesSecure mobileRisk & reporting

Modernized Alpha Theory's financial product interface, built secure business-continuity tools at Charles Schwab, and developed enterprise applications and approval workflows.

Selected organizationsAlpha Theory · Charles Schwab · RCM Capital Management · Sumitomo Bank of California

CybersecurityThreat data into actionAzure platformsThreat dashboardsAI-assisted queries

Architected Data Defenders' serverless cybersecurity platform, led the engineering team, and integrated natural-language threat queries. Served as chief firewall administrator in Al Asad, Iraq.

Selected organizationsData Defenders · U.S. Marine Corps

Defense and Public SectorSoftware that supports the missionOperational toolsLogisticsSecure collaboration

Built mission-essential Marine Corps applications, U.S. Army logistics software, and personnel-tracking systems. Supported SharePoint and .NET development for defense organizations.

Selected organizationsU.S. Marine Corps · ITT · Microsoft · ITT Exelis

HR and Employee BenefitsConnecting people and servicesEmployee portalsEnterprise workflowsApplication migration

Architected employer-facing applications at WageWorks and delivered custom portals, application migrations, and mobile experiences at Towers Watson.

Selected organizationsWageWorks · Towers Watson

Commerce and SaaSProducts built around the businessRetail operationsForecastingSaaS delivery

Modernized tools for Amazon, eBay and Walmart sales operations, built retail forecasting software, and helped evolve enterprise applications into SaaS products.

Selected organizationsWeb Partner Group · Demand Foresight · WageWorks · Data Defenders

Select an industry to explore the work and organizations behind it.

Selected Work

Built for Real-World Demands

Secure platforms. Useful interfaces. Software that serves the people behind the business.

Data Defenders

Cybersecurity Built for Action

I architected an Azure serverless platform with real-time threat dashboards for the City of Aurora and other clients. I led and mentored the engineering team as we evolved the product into SaaS and integrated ChatGPT for natural-language threat queries.

AzureASP.NET CoreAngular & BlazorChatGPT

Charles Schwab

Secure Mobile Tools for Business Continuity

I built an enterprise iOS application with authentication, encryption, offline caching and REST APIs, integrating per-app VPN and device management. My ownership spanned design, implementation, testing and documentation.

Swift & Objective-CREST APIsSQL Server

Alpha Theory

A Modern Interface for Financial Decisions

I served as front-end architect and technical lead for the core product’s modernization, working with the CTO and VP of User Interface to move to a component-based Angular experience.

AngularJavaScriptD3.js

Five Areas of Expertise

Architecture to Implementation.

I stay close to the code, the team and the problem we’re solving.

  1. C# and .NET Engineering

    ASP.NET Core, REST APIs and enterprise applications, from architecture through delivery.

  2. Azure and AI Integration

    Azure Functions, Logic Apps, Azure SQL, SaaS platforms and practical ChatGPT integration.

  3. Web and Mobile Experiences

    Angular, Blazor, JavaScript, HTML/CSS, Swift and Objective-C. Interfaces that work across screens.

  4. Data and Application Security

    SQL Server, stored procedures, secure authentication and encryption across connected applications.

  5. Technical Leadership

    System architecture, developer mentoring, Agile/Scrum and ownership across the software lifecycle.

How I Work

Clear Thinking. Lasting Software.

My approach is simple: understand the problem, make deliberate decisions and build something people can maintain.

Keep It Simple

Build the simplest solution that solves the real problem. Every layer should earn its place.

Make It Understandable

Write code the next engineer can read, maintain and improve. Share the reasoning, not just the result.

Stay Close to the User

Break complex problems into focused questions and connect technical decisions to the people they serve.

MicrosoftGreat People Great Performance Award
ITTSilver Team Award
U.S. Marine CorpsTwo Navy and Marine Corps Achievement Medals
My Military Service

Let’s Talk

Let’s Build Something Useful.

Available for contract and part-time software engineering, architecture and AI-assisted development for teams in the United States and the Philippines.