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.
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.
30+Years in Software Engineering
20Professional Certifications
USMCVeteran & Technical Leader
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.
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.
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.
Experience Across Industries
Industry and Product Experience
Three decades of building software where the details matter.
Financial ServicesRCM / Sumitomo / Schwab / Alpha Theory
- RCM Capital Management · Feb 1994–Aug 1995
- RCM Capital Management · Nov 1995–Oct 1996
- Sumitomo Bank of California · Oct 1996–Jan 1997
- Charles Schwab · Jan 1997–May 1997
- Charles Schwab · Sep 1997–Jan 2000
- Charles Schwab · Oct 2014–May 2016
- Alpha Theory · May 2016–Feb 2018
CybersecurityUSMC / Data Defenders
- U.S. Marine Corps (including firewall and network security) · Sep 2003–Sep 2007
- Data Defenders · Jun 2022–Mar 2026
Defense and Public SectorUSMC / ITT / Microsoft / Exelis
- U.S. Marine Corps · Sep 2003–Sep 2007
- ITT · Sep 2007–Dec 2008
- Microsoft · Jan 2009–Jan 2010
- ITT Exelis · Feb 2012–Oct 2014
HR and Employee BenefitsWageWorks / Towers Watson
- WageWorks · Mar 2000–Jan 2002
- WageWorks · Apr 2002–Aug 2003
- Towers Watson · Mar 2011–Oct 2014
Commerce and SaaSWageWorks / Demand Foresight / Web Partner Group / Data Defenders
- WageWorks (e-commerce and SaaS) · Mar 2000–Jan 2002
- WageWorks (e-commerce and SaaS) · Apr 2002–Aug 2003
- Demand Foresight (retail forecasting) · Oct 2010–Nov 2010
- Web Partner Group (e-commerce) · Oct 2019–Jun 2022
- Data Defenders (SaaS) · Jun 2022–Mar 2026
Selected engagements, 1994–2026. Bars show role dates; categories overlap and gaps are preserved. Select an industry for employers and dates.
Selected Work
Built for Real-World Demands
Secure platforms. Useful interfaces. Software that serves the people behind the business.
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.
From Data to Decisions
Threat Data
Azure Functions & Azure SQL
Dashboards & AI-Assisted Queries
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.
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.
Five Areas of Expertise
Architecture to Implementation.
I stay close to the code, the team and the problem we’re solving.
C# and .NET Engineering
ASP.NET Core, REST APIs and enterprise applications, from architecture through delivery.
Azure and AI Integration
Azure Functions, Logic Apps, Azure SQL, SaaS platforms and practical ChatGPT integration.
Web and Mobile Experiences
Angular, Blazor, JavaScript, HTML/CSS, Swift and Objective-C. Interfaces that work across screens.
Data and Application Security
SQL Server, stored procedures, secure authentication and encryption across connected applications.
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.
Microsoft · 2009Great People Great Performance Award
ITT · 2008Silver Team Award
U.S. Marine Corps · 2005 & 2006Two Navy and Marine Corps Achievement Medals
My Military Service
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.