Sr Software Engineer- FIX Protocol Developer

Sr. Software Engineer – FIX Protocol DeveloperLocation: Charlotte, NCDuration: 12–24 MonthsSeeking a Senior Software Engineer with strong FIX Protocol expertise to design, develop, and support trading integration solutions. The role involves building scalable APIs/services, onboarding FIX connections, troubleshooting session issues, and collaborating with internal teams and external counterparties in an Agile environment.Key ResponsibilitiesDesign, develop, test, and maintain FIX-based trading solutions and APIsSupport FIX onboarding, certification, UAT, and production go-live activitiesTroubleshoot FIX connectivity/session issues and perform log/message analysisCollaborate with technical teams to deliver scalable cloud-based solutionsParticipate in code reviews, CI/CD processes, and production supportMentor junior engineers and contribute to engineering best practicesRequired Skills5+ years of software engineering experienceStrong hands-on experience with FIX Protocol (session & application layers)Experience with FIX onboarding, certification, and counterparty integrationKnowledge of trading workflows and FIX message flowsExperience with APIs, CI/CD pipelines, cloud infrastructure, and automated testingUnderstanding of TCP/TLS networking and troubleshooting FIX connectivity issuesStrong debugging and problem-solving skillsPreferred SkillsExperience with C#, Java, or PythonKnowledge of Spring Boot, RESTful services, Kubernetes, and cloud-native architectureExperience with Playwright, Selenium, Cypress, or BDD frameworksFamiliarity with GitHub workflows, SonarQube, and monitoring/alerting toolsPrior experience in trading platforms or market data systemsSkills: java api,protocol,.net,rest api,e2e,fix protocal,python,gherkin,fix onboarding,cypress,onboarding,software,trading,uitesting,selenium webdriver,fix message flows