# Matthew Ballew

Matthew Ballew is a remote worker on Himalayas, Senior Software Engineer | Technical Lead at Apex Fintech Solutions, based in United States.

Source: https://himalayas.app/@matthewballew

```text
I modernize enterprise payment and healthcare platforms into secure, scalable cloud-native distributed systems.
```

| Detail | Value |
| --- | --- |
| Availability | Open to opportunities |
| Location | United States |
| Authorized to work in | United States |
| Job categories | Software Engineer, Technical Lead, Software Architect, Backend Engineer, Cloud Engineer, DevOps Engineer, Full Stack Engineer, Software Engineer Developer, Software Developer, IT Software Engineer, Software Engineer Jobs, Software Engineering Jobs |
| Skills | C#, .NET 8+, ASP.NET Core, ASP.NET MVC, ASP.NET, Azure, AWS, Microservices, Distributed Systems, Event Driven Architecture, Clean Architecture, Domain Driven Design, CQRS, SOLID, REST APIs, GraphQL, Swagger, OpenAPI, SQL Server, Docker, Kubernetes, Azure Kubernetes Service, Azure Service Bus, Azure DevOps, Terraform, Angular, React, RxJS, Python, Pandas, scikit learn, Azure Functions, AWS Lambda, OpenID Connect, Microsoft Entra ID, JWT, Role Based Access Control, Grafana, Azure App Insights, SonarQube, xUnit, FHIR, HL7, SOAP, Agile, Scrum, SAFe, Adobe Target, .NET Core, .NET, AngularJS, JavaScript, HTML5, SQL, OAuth |

## What I'm looking for

```text
I'm looking to lead and build secure cloud-native platforms, modernize enterprise systems, and mentor engineers while solving high-impact fintech or healthcare challenges.
```

## About

```text
I've led payment and settlement modernization at Apex Fintech Solutions, converting legacy services into .NET 8 microservices that support real-time, compliance-driven transaction operations exceeding $10M in monthly volume.

I build secure distributed systems with C#, ASP.NET Core, Azure, event-driven messaging, and SQL Server. My work has improved settlement throughput by 35%, API performance by more than 45%, and production troubleshooting time by over 40%.

Previously at Texas Children's Hospital, I helped modernize legacy healthcare applications into modular cloud-hosted platforms, built FHIR and HL7 interoperability services, and improved patient workflow visibility through React dashboards. I also supported secure AWS-based healthcare services, audit monitoring, and HIPAA reporting needs.

Across fintech, healthcare, and consulting engagements at Avanade, I've paired hands-on architecture and delivery with mentoring engineers, improving engineering standards, API design, and production support practices.
```

## Experience

### Senior Software Engineer | Technical Lead

[Apex Fintech Solutions](https://himalayas.app/companies/apex-fintech-solutions). Sep 2023 - May 2026

```text
Led modernization of enterprise payment and settlement systems into cloud-native distributed microservices architecture supporting real-time financial processing and compliance-driven transaction operations.
```

Skills: C#, ASP.NET-Core, Azure, Microservices, Event-Driven-Architecture, Clean-Architecture, DDD, CQRS, Angular, RxJS, Azure-Service-Bus, SQL-Server, GraphQL, OpenID-Connect, Microsoft-Entra-ID, JWT, RBAC, Docker, Kubernetes, AKS, Grafana, Python, Pandas, scikit-learn, Azure-Functions, Terraform, Azure-DevOps, SonarQube, xUnit, Agile, Scrum, SAFe

### Senior Software Engineer

[Texas Children's Hospital](https://himalayas.app/companies/texaschildrens). Mar 2018 - Aug 2023

```text
Modernized enterprise healthcare systems from legacy on-prem applications into modular cloud-hosted platforms supporting interoperability, patient engagement, and secure healthcare operations.
```

Skills: ASP.NET-Core, React, SOLID-Principles, Repository-Pattern, Unit-Of-Work, FHIR, HL7, Adobe-Target, SOAP, AWS-Lambda, SQL-Server, Python, Blue-Green-Deployment, Agile, Scrum

### Software Engineer

[Avanade](https://himalayas.app/companies/avanade). Aug 2015 - Feb 2018

```text
Delivered enterprise business applications and workflow automation systems for client engagements across operations, logistics, and internal business management domains.
```

Skills: C#, ASP.NET-MVC, SQL-Server, JavaScript, AngularJS, HTML5, SOAP, REST, Repository-Pattern, Agile

## Education

### Texas A&M University

Bachelor of Science, Computer Engineering. 2010 - 2015

```text
Bachelor of Science in Computer Engineering from Texas A&M University, completed from 2010 to 2015.
```

## Tech stack

- Adobe Target
- OpenAPI
- SonarQube
- RxJS
- Kubernetes
- Pandas
- .NET Core
- .NET
- ASP.NET Core
- Terraform
- Azure DevOps
- AngularJS
- JavaScript
- HTML5
- ASP.NET
- scikit-learn
- Azure Service Bus
- Grafana
- GraphQL
- AWS Lambda
- Azure Functions
- OAuth2
- SQL
- SAFe
- ASP.NET MVC

To contact Matthew, message them from this profile with a Himalayas employer account: [Hire on Himalayas](https://himalayas.app/hire).

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