Senior C# Net Developer

BASELoad & W-9 Corrections; Rock Hill (SC); On-site; USD 72,000 - 88,000; Full time

Benefits offered by this job

401(k)

Health insurance

Paid time off

Job summary

BASELoad is seeking a Senior C# Developer / Data Engineer to own core development and data platform initiatives for SureHit Now. This hands-on role blends application development with data engineering responsibilities.

You will design efficient systems, build data pipelines, manage SQL Server environments, and deliver scalable solutions to power high-volume healthcare data processing. The role emphasizes stabilizing legacy data infrastructure while building new greenfield platforms.

Qualifications

• 5-8+ years of professional C#/.NET development experience.
• Strong SQL Server and T-SQL optimization skills.
• Experience with ETL patterns and data pipelines.
• Familiarity with API design and microservices.
• Experience with Git-based version control and code reviews.

Responsibilities

• Design, develop, and maintain C#/.NET applications for healthcare data operations.
• Build scalable data pipelines and ETL processes.
• Administer SQL Server instances and perform performance tuning.
• Develop APIs following OpenAPI and REST/SOAP practices.
• Collaborate on microservices and distributed systems.
• Follow DevOps practices, CI/CD, and IaC with Terraform.

Skills

C#/.NET development

Data pipeline design

SQL Server performance tuning

API design / Web APIs

Tools

Entity Framework

WPF/XAML/MVVM

Git

Terraform

Job description

BASELoad helps healthcare payers reduce costs and improve processes through intelligent data services, tools, and programs that enhance the accuracy of provider data. We specialize in EDI adjudication, 1099 filings, and market data analytics — all built on a foundation of service, data, and process improvement.

The Opportunity

We are seeking a Senior C# Developer / Data Engineer to take ownership of key development and data platform initiatives for our flagship application, SureHit Now. This is a hands-on role that blends full-stack application development with strong data engineering responsibilities.

You will design efficient systems, build and optimize data pipelines, administer and tune SQL Server environments, and deliver robust, scalable solutions that power high-volume healthcare data processing.

This is an opportunity to make a tangible impact in the healthcare industry — helping payers and providers reduce waste, improve accuracy, and ensure fair, timely payments.

This role will be focused on stabilizing and optimizing older, legacy data infrastructure while simultaneously building modern, greenfield data platforms from scratch.

What You'll Do

Application Development

• Design, develop, maintain, and enhance C# /.NET applications supporting healthcare data operations and the SureHit Now platform.
• Build resilient, scalable, and performant systems following SDLC and release management best practices.
• Work with Entity Framework, WPF/XAML/MVVM, XML, and Web APIs to deliver maintainable, responsive applications.
• Apply SOLID principles, Dependency Injection, and separation of concerns to produce clean, testable code.
• Contribute to reusable frameworks and shared libraries that improve productivity and consistency across applications.
• Participate in structured code reviews and maintain high standards using Git-based version control.
• Design, implement, and optimize ETL processes to extract, transform, and load healthcare data at scale.
• Own SQL Server administration responsibilities including instance upgrades, monitoring, performance tuning, and backup strategy.
• Optimize database performance through indexing strategies, query tuning, schema refinement, and execution plan analysis.
• Develop and maintain robust T-SQL scripts, stored procedures, and data quality processes.
• Ensure data integrity, reliability, and recoverability across production environments.
• Design and implement APIs following OpenAPI specifications and modern REST/SOAP practices.
• Build and support event-driven architectures, message queues, and asynchronous processing patterns.
• Collaborate on microservices and distributed systems design where appropriate.
• Partner with leadership on requirements, timelines, integration strategies, and technical design decisions.
• Contribute to cloud migration initiatives and cloud-native solution design.
• Support Infrastructure as Code practices using tools such as Terraform.
• Apply DevOps principles, CI/CD pipelines, and security best practices throughout the development lifecycle.

Required Qualifications

• 5-8+ years of professional experience in C# /.NET development.
• Strong hands-on experience with relational database design, T-SQL, query optimization, and SQL Server performance tuning.
• Proven experience designing and implementing complex systems using .NET, C#, SQL, and Web APIs.
• Solid understanding of ETL patterns and data pipeline development.
• Experience with Entity Framework and modern data access patterns.
• Familiarity with API design (including OpenAPI), microservices concepts, and distributed systems.
• Experience with message queues, event-driven architecture, or asynchronous processing.
• Proficiency with Git-based version control and structured code review practices.
• Understanding of DevOps, CI/CD pipelines, and security best practices.
• Strong problem-solving skills with attention to detail in debugging, optimization, and production support.
• Excellent written and verbal communication skills; ability to collaborate effectively in a team-oriented environment.

Preferred Experience

• SQL Server administration experience (upgrades, monitoring, backup/recovery strategies, scripting).
• Domain-Driven Design (DDD) or microservices architecture.
• WPF / XAML / MVVM experience for desktop or rich client applications.
• Cloud migration experience and Infrastructure as Code (Terraform or similar).
• Kanban or Agile delivery methodologies.
• Healthcare data domain knowledge, including 837 claim formats or EDI.
• Familiarity with SOC 2 compliance and secure development practices.

Core Competencies

• Excellent written and verbal communication — both technical and non-technical
• Strong analytical and problem-solving abilities
• Ability to plan, prioritize, and execute tasks efficiently in a fast-paced environment
• Ownership mentality with a focus on quality, reliability, and continuous improvement
• Collaborative approach to working with engineering, product, and operations
• High cognitive agility. You will be asked to switch mindsets rapidly.

Why Join Us

At BASELoad, your work directly improves the accuracy and efficiency of healthcare data processes that impact payers, providers, and ultimately patients. You will have the opportunity to own critical systems end-to-end — from application code to data pipelines and database performance — in a collaborative environment that values clean architecture, practical solutions, and continuous improvement.

BASELoad is an equal opportunity employer.

Job Specifics

• Job Type: Full-time
• Salary: $80,000.00 annually
• Benefits: 401(k), Health insurance and Paid time off
• Schedule: 8-hour shift, Monday to Friday with 1 hour lunch
• Ability to commute/relocate: Rock Hill, SC 29730: Reliably commute or planning to relocate before starting work (Required)
• Work Location: In person (no remote work)
• Employment Requirements: Background check and drug testing

Job Type: Full-time

• 401(k)
• Health insurance
• Paid time off

Experience:

• C#: 4 years (Required)

Ability to Relocate:

• Rock Hill, SC 29730: Relocate before starting work (Required)