Sr. Software Systems Engineer (C#/.NET Developer)

Job ID 2612080

Location Remote Work, TX, US

Date Posted 2026-04-30

Category Engineering and Sciences

Subcategory Systems Engineer

Schedule Full-Time

Shift Day Job

Travel No

Minimum Clearance Required None

Clearance Level Must Be Able to Obtain Public Trust

Potential for Remote Work ORA_REMOTE

Description

SAIC is searching for a motivated, career and customer-oriented Sr. Software Engineer (C#/.NET Developer) who will work across EDI transaction processing, backend API development, and cloud native systems on AWS. This is a hands-on engineering role with direct impact on how VA healthcare data flows through our platform.  This is a 100% Remote role.  

Job Description

• Design, build, and maintain C#/.NET/AWS backend services handling high-volume healthcare EDI transactions (837, 835, etc.)
• Parse, validate, and transform X12 EDI documents 
• Debug complex transaction-level issues across payers, clearinghouses, and trading partners 
• Write, optimize, and troubleshoot SQL stored procedures including performance tuning, query analysis, and complex data transformations 
• Work with XML object store data query, parse, and manipulate structured XML within MSSQL 
• Write clean, testable, well-documented code and participate actively in code review 
• Contribute to shared platform libraries and services used across multiple product initiatives 
• Performs technical planning, high level and detailed requirements definition, test planning and execution with team members and stakeholders on a daily basis 
• Serve as an active member of the software development team participating in daily stand-ups 
• Deploy, support and ensure the performance, quality, and responsiveness of application 
• Provide development support, as needed, for solutions deployed to production 
• Implement long term solutions and building blocks within the agile framework for improved reusability 
• Apply and promote best software engineering practices 
• Use Integrated Development Environment (IDE) tools to include Visual Studio and Git

Qualifications

Education  

• Bachelor's or master's degree in computer science, electronics engineering or other engineering or technical discipline is required.

Experience 

• Minimum of 8 years of experience in software development using C#/.NET technologies
• Proven track record of working on complex software projects and leading development initiatives 
• Experience with designing, developing, and deploying enterprise-level applications

Requirements

• Strong proficiency in C#/.NET ecosystem 
• Proficiency in developing back-end applications using design and integration patterns 
• Hands-on AWS experience (serverless, messaging, storage, databases) preferred 
• Strong SQL skills writing and optimizing stored procedures, troubleshooting execution plans, performance tuning in MSSQL 
• Proficient with Git and GitHub  
• Experience with MSSQL or similar relational databases 
• Proficiency in database design and development, including working with SQL Server and Entity Framework.  
• Familiarity with cloud platforms (e.g., Microsoft Azure, AWS) and services.  
• Understanding of continuous integration/continuous deployment (CI/CD) practices and tools (e.g., AWS CodePipeline, CodeBuild, CodeDeploy).  
• Knowledge of unit testing frameworks and tools (e.g., NUnit, xUnit, MSTest). - Proficiency in using development tools like Visual Studio and Visual Studio Code. 
• Excellent problem-solving and analytical skills. 
• Strong communication and interpersonal abilities.  
• Ability to work independently and as part of a large team.  
• Attention to detail and commitment to producing high-quality software.  
• Ability to prioritize tasks and manage time effectively using JIRA. 
• Experience with agile development methodologies (e.g., Scrum, Kanban).  
• Familiarity with DevOps practices and infrastructure as code (IaC).  
• Ability to conduct code reviews and provide constructive feedback. 
• Experience with performance tuning and optimization of applications. 
• Knowledge of microservices and event-driven architecture and containerization technologies (e.g., Docker, ECS, EKS) is a plus.  
• Experience with healthcare payer/PBM systems, clearinghouses, or pharmacy operations is a plus 

Clearance Requirement

• US Citizenship with the ability to obtain and maintain a Public Trust clearance

Target salary range $80,001 - $120,000. The estimate displayed represents the typical salary range for this position based on experience and other factors.