Senior Java/.NET API & Integration Specialist

Healthcare Triangle, Inc.; San Antonio (TX); On-site; USD 110,000 - 150,000; Full time

Job summary

Healthcare Triangle, Inc. is seeking a Senior Java/.NET Integration Engineer for a long-term contract in San Antonio, TX. The role requires deep expertise across Java, .NET/C#, REST APIs, and enterprise integration.

The ideal candidate will handle multi-stack integration, API development, troubleshooting, and mentoring of teams while driving modernization and CI/CD initiatives. Strong communication and architectural collaboration are essential.

Qualifications

• 7+ years of hands-on Java development experience.
• Strong knowledge of Java 8+, preferably Java 11/17/21.
• Strong Spring Framework / Spring Boot experience.
• Experience developing enterprise applications and microservices.
• Strong understanding of object-oriented programming and design patterns.
• NET / C# Required or Strongly Preferred.
• Strong hands-on experience with C# and .NET.
• Experience with .NET Core / modern .NET.
• Experience developing enterprise applications and APIs using .NET.
• Experience working with ASP.NET Core Web API.
• Ability to understand and contribute to applications built on both Java and .NET platforms.

Responsibilities

• Design, develop, and maintain enterprise applications using Java and .NET/C#.
• Develop and integrate RESTful APIs across multiple applications and platforms.
• Design and implement reliable application-to-application integrations.
• Work with Java, Spring/Spring Boot, .NET Core/.NET 6+ and C#.
• Develop and maintain microservices and integration services.
• Analyze existing applications, interfaces, dependencies, and integration points.
• Troubleshoot complex application, API, and integration issues.
• Participate in architecture and technical design discussions.
• Develop reusable services, components, APIs, and integration frameworks.
• Work across both Java and Microsoft technology environments as business needs require.
• Quickly learn and work with new SDKs, APIs, frameworks, and third‑party platforms.
• Collaborate with architects, product owners, business analysts, QA, DevOps, and engineering teams.
• Conduct code reviews and promote engineering best practices.
• Mentor and provide technical guidance to internal developers.
• Conduct technical knowledge-transfer and training sessions.
• Support application modernization and technology transformation initiatives.
• Contribute to CI/CD, automated testing, deployment, and production support activities.

Skills

Java

Spring Boot

REST APIs

API integration

C#/.NET

Microservices

CI/CD

Docker

Kubernetes

SQL

Oracle

JSON/XML

OAuth

Tools

Jenkins

GitHub Actions

Azure DevOps

ASP.NET Core Web API

Job description

Healthcare Triangle, Inc. is seeking a Senior Java/.NET Integration Engineer for a long-term contract in San Antonio, TX. The role requires deep expertise across Java, .NET/C#, REST APIs, and enterprise integration.

The ideal candidate will handle multi-stack integration, API development, troubleshooting, and mentoring of teams while driving modernization and CI/CD initiatives. Strong communication and architectural collaboration are essential.