Full-Stack Developer (.NET + React/Angular)

Trinetix is seeking a Senior .NET FullStack Developer for a long-term project in the Healthcare domain, focusing on agile, community-based healthcare delivery.

Location: Argentina

Responsibilities

• Design, develop, and maintain applications using .NET (C#) in backend and React or Angular in frontend
• Write and optimize complex SQL Server queries, stored procedures, and database schemas
• Build and consume RESTful APIs and integrate with third-party systems
• Develop and support HL7 interfaces for healthcare data exchange between clinical and administrative systems
• Collaborate with cross-functional teams (product, QA, stakeholders) to translate requirements into tech solutions
• Deploy and manage applications in Microsoft Azure (App Services, Azure SQL, Azure Functions, etc.)
• Participate in code reviews, technical planning, and architecture discussions
• Troubleshoot production issues and implement performance improvements
• Support claims processing workflows and ensure data integrity across the claims lifecycle

Requirements

• 6+ years of experience in Full Stack Development roles.
• Strong proficiency in .NET / C# and at least one frontend framework, React or Angular.
• Solid experience with SQL Server, including query optimization and database design.
• Hands-on experience with RESTful API development and third-party integrations.
• Proficient understanding of code versioning tools such as GIT.
• Experience with healthcare data standards, specifically HL7 messaging (ADT, ORM, ORU, etc).
• Understanding of claims processing concepts (837/835 transactions, adjudication workflows, provider dataflows).
• Excellent problem-solving skills, attention to detail, and strong communication skills.

Benefits

• Competitive USD monthly salary
• Real flexible working hours
• Continuous learning and career growth opportunities
• Professional training and English language classes
• Comprehensive medical insurance
• Mental health support
• Specialized benefits program with compensation for fitness activities, hobbies, pet care and more
• Inclusive and supportive culture