Software Engineer (Full Stack & JAVA)

Sr. Systems Engineer (Full-Stack Developer)Marathon TS is looking for a dedicated Full-Stack Software Engineer to help build, support and migrate a cloud-based Web Dashboard application that processes healthcare EDI transactions. The ideal candidate has experience with (Java/Node.js) backend integration work, (Angular) front-end UI development and understands structured healthcare data. This is a 100% Remote role.JOB DESCRIPTIONDesign, build, and maintain RESTful APIs in Java and/or Node.js that retrieve, transform, and serve EDI healthcare recordsIntegrate with internal platform APIs, EDI processing pipelines, and data services to deliver live and historical EDI transaction data reliably and performantlySupport and contribute to an Angular-based dashboard frontend consuming APIs, building or maintaining components, and ensuring data is surfaced accurately to business and clinical usersCollaborate with backend C#/.NET and AWS data engineers to define clean API contracts and ensure reliable data delivery across servicesWrite clean, testable, well-documented code and participate actively in code reviewPerform unit and integration testing across backend services and API layersSupport deployment, monitoring, and performance of backend services in production on AWSApply and promote best software engineering practices within an agile frameworkUse Git and GitHub for version control, branching, pull requests, and collaborative developmentEducationBachelor's or master's degree in computer science, Engineering, or a related technical discipline required; equivalent practical experience consideredExperience8 years of software development experience with a strong backend focus (Java and/or Node.js)Experience designing and consuming RESTful APIs in healthcare or enterprise environmentsProven experience building backend services that serve structured EDI or healthcare data to frontend applicationsSome hands-on Angular experience able to integrate APIs and contribute to frontend componentsRequirementsCore TechnicalStrong backend development experience in Java and JavaScript/TypeScript/Node.js API design, data transformation, error handling, and performanceExperience with Angular or another Modern front-end frameworkProven ability to build RESTful APIs that consume and transform structured data (XML, JSON)Experience working with EDI data formatsFamiliarity with web document submission processes a plusWorking knowledge of Angular components, services, API integration; frontend development is secondary but realHands-on Cloud (Azure/AWS) experience API Gateway, Lambda, S3, CloudWatch, or related servicesProficient with Git and GitHub branching strategies, pull requests, collaborative workflowsExperience with unit and integration testing frameworks (JUnit, Jest, or equivalent)Process & Soft SkillsStrong communication skills able to work with stakeholders and cross-functional engineers to define and refine API requirementsExperience with agile methodologies (Scrum, Kanban) and JIRAAbility to work independently and as part of a distributed teamStrong attention to detail especially around data accuracy and fidelity for healthcare recordsAbility to conduct code reviews and provide constructive feedbackNice to HaveFamiliarity with healthcare payer/PBM systems, clearinghouses, or pharmacy operationsExperience with VA systems, ARS workflows, or 275 claim attachment transactionsKnowledge of HIPAA compliance requirements in API and web application developmentFamiliarity with accessibility standards (Section 508 / WCAG 2.1) for government-facing applicationsExperience with containerization (Docker, ECS, EKS)Familiarity with C#/.NET backend services for cross-team integration touchpointsClearance Requirement:US Citizenship required with the ability to obtain and maintain a Public Trust clearance