Isaac Valles
Buda,TX
Summary
Accomplished Senior Software Engineer with expertise in C# and .NET Core. Spearheaded modernization projects, enhancing mission-critical platforms. Proven leader and mentor, adept at fostering team growth and collaboration. Recognized for optimizing SQL databases, achieving sub-second response times, and driving innovation in high-stakes environments.
Overview
17
17
years of professional experience
Work History
Senior Software Engineer
Spring Education Group
Austin, TX
05.2024 - Current
- Led rescue and modernization of mission-critical .NET Core scheduling/payment platform with deep NetSuite ERP integration
- Designed & deployed NetSuite SuiteScript 2.x RESTlets/scriptlets for real-time HTTP communication with .NET Core
- Engineered bi-directional ODBC data synchronization (MS SQL MySQL NetSuite); optimized stored procedures and upgraded schemas to eliminate sync errors
- Delivered production-ready .NET Core and .NET Framework enhancements aligned with evolving business requirements
Senior Software Engineer
Dimensional Fund Advisors
Austin, TX
05.2023 - 04.2024
- Enhanced Angular 14 trading front-end and .NET Core APIs tightly integrated with Charles River OMS low-level functions
- Customized Charles River blotter buttons, order loaders, and real-time compliance checks for portfolio managers and traders
- Performance-tuned complex SQL stored procedures powering live risk and P&L calculations (sub-second response on multi-million row datasets)
- Acted as primary mentor for two mid-level developers on Angular best practices and .NET performance patterns
Integration Lead
Commemorative Brands, Inc
Austin, TX
11.2013 - 04.2023
- Architected and delivered serverless AWS order-processing workflows (Lambda Node.js + EventBridge + SQS/SNS) for Walmart, JCPenney, and Signet e-commerce integrations
- AWS Services maintained on a daily basis (IAM, RDS, EC2, Route53, ELB)
- Designed and led Dell Boomi implementation connecting STIBO PIM → Magento → NetSuite → 3PL warehouses
- Built and mentored a team of four developers on microservices, CI/CD, and database best practices in a small, high-output environment
- Owned full-stack Angular/Razor Pages UI development for internal order management and reporting portals
- Modernized legacy SSIS packages and SSRS reports critical to financial reconciliation and audit trails
- Regularly wore multiple hats: requirements architect, lead developer, code reviewer, and production fire-fighter
Senior .NET Developer
Field Asset Services
Round Rock, TX
06.2013 - 09.2013
- Rapidly mastered NServiceBus; stabilized and production-deployed two inherited projects in first week
- Designed high-performance ASP.NET MVC 4 / WCF quoting engine handling 300k+ rows per cycle
- Owned the ongoing enhancement and production support of critical legacy SSIS packages and SSRS reports used for investor reporting, HMDA/CRA regulatory submissions, and daily P&L reconciliation — ensuring 100% auditability and accuracy in a fast-paced, high-stakes financial operation
- Designed, optimized, and maintained high-volume MS SQL Server databases and ETL pipelines in a regulated mortgage environment, reliably processing 100k+ loan records per cycle with sub-second response times to support real-time pricing, compliance, and funding workflows
Senior .NET Developer
National Western Life
Austin, TX
05.2012 - 06.2013
- Led the design, development, and successful delivery of a green-field ASP.NET MVC 4 quoting engine with WCF services and Entity Framework 5
- Collaborated closely with business stakeholders (actuarial, underwriting, and finance teams) to gather and architect detailed functional and technical requirements, translating complex insurance-specific business rules into scalable, performant solutions
- Designed and performance-tuned high-volume MS SQL Server 2012 databases, stored procedures, and ETL workflows that processed 300k+ rows per cycle with sub-second response times; maintained and enhanced legacy SSIS packages and SSRS reports critical to financial and regulatory reporting
- Owned end-to-end delivery in a lean environment, routinely wearing multiple hats (requirements architect, lead developer, code reviewer, performance tuner, and production support owner) while adapting quickly to shifting priorities and unforeseen challenges
Lead Application Developer
NWP Services Corporation
Austin, TX
11.2008 - 04.2012
- Co-led development with on-shore/off-shore Accenture teams on Resident ePay – a C# .NET payment platform processing millions in ACH, credit card, and check-scanning transactions
- Architected and extended WCF services, Windows services for batch processing, and ASP.NET MVC 3 / WebForms UI layers
- Designed MS SQL 2008 R2 schemas, complex stored procedures, and SSRS reports for billing and audit trails
- Integrated multiple third-party payment gateways via SOAP/REST APIs and exposed clean .NET APIs for external client consumption
- Implemented continuous enhancements to business logic, security, and performance across the entire stack
Education
Computer Science - Programming
Angelo State University
San Angelo, TXComputer Science - Information Services
Austin Community College
Austin, TXSkills
- C# and NET Core
- Angular framework
- Razor syntax
- PowerShell scripting
- Nodejs development
- AWS cloud services
- Azure cloud services
- IIS management
- SQL databases
- NoSQL databases
- DB2 database management
- Visual Studio IDE
- Visual Studio Code
- GitHub version control
- Azure DevOps tools
- JIRA project management
- JSON data format
- XML data format
- Charles River OMS expertise
Websites
Core Technical Expertise
C# .NET Core/8, ASP.NET MVC/Core, Angular 12+, Razor Pages, Node.js, WCF, Entity Framework Core, AWS (Lambda, DynamoDB, S3, SQS, SNS, EventBridge, Step Functions, API Gateway, CloudWatch), Azure (Functions, Service Bus, AKS, DevOps), SQL Server (T-SQL, SSIS, SSRS), high-volume stored procedures, legacy ETL maintenance, Power BI (preferred), Dell Boomi, NetSuite SuiteScript 2.x, Charles River OMS, REST/SOAP APIs, GitHub Actions, Azure DevOps, Jira, Confluence, Postman, Visual Studio/Code
Affiliations
- Professional touring bass player late '90s
- Fishing
Accomplishments
- Accelerated revenue growth by delivering high-impact features ahead of schedule, enabling sales to onboard 40% more enterprise clients YoY
- Drove 150% higher transaction volume and 3x business growth by owning end-to-end platform enhancements in a lean team
Languages
English
Professional
Timeline
Senior Software Engineer
Spring Education Group
05.2024 - Current
Senior Software Engineer
Dimensional Fund Advisors
05.2023 - 04.2024
Integration Lead
Commemorative Brands, Inc
11.2013 - 04.2023
Senior .NET Developer
Field Asset Services
06.2013 - 09.2013
Senior .NET Developer
National Western Life
05.2012 - 06.2013
Lead Application Developer
NWP Services Corporation
11.2008 - 04.2012
Computer Science - Programming
Angelo State University
Computer Science - Information Services
Austin Community College