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Software Engineer (.NET)

Marathon TS, Inc.
  • College Park, MD
  • Remote
  • Instant Apply
9 days ago

Job Description

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

Numbers & Facts

LocationCollege Park, MD (
Remote)

Skills

  • ADO.NET Entity Frameworkunmatched
  • Agile Programming Methodologiesunmatched
  • Amazon Web Services (AWS)unmatched
  • Analysis Skillsunmatched
  • Atlassian JIRAunmatched
  • Cloud Computingunmatched
  • Code Reviewsunmatched
  • Communication Skillsunmatched
  • Computer Scienceunmatched
  • Continuous Deployment/Deliveryunmatched
  • Continuous Integrationunmatched
  • Customer Relationsunmatched
  • Database Designunmatched
  • Database Programmingunmatched
  • Detail Orientedunmatched
  • DevOpsunmatched
  • Dockerunmatched
  • Ecosystemsunmatched
  • Electronic Data Interchange (EDI)unmatched
  • Electronic Engineeringunmatched
  • Establish Prioritiesunmatched
  • Gitunmatched
  • GitHubunmatched
  • Healthcareunmatched
  • IDE (Integrated Development Environment)unmatched
  • Identify Issuesunmatched
  • Interpersonal Skillsunmatched
  • Kanbanunmatched
  • Microservicesunmatched
  • Microsoft .NETunmatched
  • Microsoft C# (C Sharp)unmatched
  • Microsoft SQL Serverunmatched
  • Microsoft Visual Studiounmatched
  • Microsoft Windows Azureunmatched
  • NUnitunmatched
  • ObjectStore Object Oriented Databaseunmatched
  • Performance Tuning/Optimizationunmatched
  • Pharmacyunmatched
  • Problem Solving Skillsunmatched
  • Product Programsunmatched
  • Programming Toolsunmatched
  • Query Analysisunmatched
  • Rational Visual Testunmatched
  • Relational Databases (RDBMS)unmatched
  • Requirements Managementunmatched
  • SQL (Structured Query Language)unmatched
  • Scrum Project Management and Software Developmentunmatched
  • Software Designunmatched
  • Software Developmentunmatched
  • Software Engineeringunmatched
  • Standup Meetingsunmatched
  • Stored Proceduresunmatched
  • Systems Engineeringunmatched
  • Team Playerunmatched
  • Test Requirementsunmatched
  • Test Toolsunmatched
  • Time Managementunmatched
  • Transaction Processing/Managementunmatched
  • Unit Testunmatched
  • United States Citizenunmatched
  • XML (EXtensible Markup Language)unmatched

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