Sr Software Engineer- FIX Protocol Developer

Sr. Software Engineer – FIX Protocol Developer

Location: Charlotte, NC

Duration: 12–24 Months

Seeking 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 Responsibilities

• Design, develop, test, and maintain FIX-based trading solutions and APIs
• Support FIX onboarding, certification, UAT, and production go-live activities
• Troubleshoot FIX connectivity/session issues and perform log/message analysis
• Collaborate with technical teams to deliver scalable cloud-based solutions
• Participate in code reviews, CI/CD processes, and production support
• Mentor junior engineers and contribute to engineering best practices
  
  

Required Skills

• 5 years of software engineering experience
• Strong hands-on experience with FIX Protocol (session & application layers)
• Experience with FIX onboarding, certification, and counterparty integration
• Knowledge of trading workflows and FIX message flows
• Experience with APIs, CI/CD pipelines, cloud infrastructure, and automated testing
• Understanding of TCP/TLS networking and troubleshooting FIX connectivity issues
• Strong debugging and problem-solving skills
  
  

Preferred Skills

• Experience with C#, Java, or Python
• Knowledge of Spring Boot, RESTful services, Kubernetes, and cloud-native architecture
• Experience with Playwright, Selenium, Cypress, or BDD frameworks
• Familiarity with GitHub workflows, SonarQube, and monitoring/alerting tools
• Prior experience in trading platforms or market data systems
  
  

Skills: java api,protocol,.net,rest api,e2e,fix protocal,python,gherkin,fix onboarding,cypress,onboarding,software,trading,uitesting,selenium webdriver,fix message flows