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# Application Developer II

- **Company:** McCarthy Building Companies, Inc.
- **Location:** St. Louis, MO, United States
- **Experience:** Experienced
- **Contract:** Permanent contract
- **Skills:** .NET Framework, Agile Methodology, Amazon Web Services, Microsoft Azure, C Sharp (Programming Language), Cloud Computing, Databases, Continuous Integration, File Transfer, Github, JSON, Python (Programming Language), Key Management, Microsoft Office, Node.Js, Open Web Application Security, Scrum Methodology, Cloud Services, Ruby, Software Engineering, TypeScript, Extensible Markup Language (XML), File Transfer Protocol (FTP), Delivery Pipeline, Sonatype, Boomi, Informatica Cloud, AI Platforms, Integration Frameworks, Sinatra (Software), Checkmarx, Api Design, Restful APIs, Terraform, Devsecops, Mulesoft, Static Application Security Testing, Dynamic Application Security Testing
- **Published:** August 30, 2026
- **Apply:** https://jobs.military.com/career/323612/application-developer-ii-missouri-mo-st-louis

## About the Role

* Minimum 3 years of experience with an enterprise iPaas (integration platform as a service) such as Boomi, Mulesoft or Snaplogic. Boomi experience would be preferable. \n
 * Strong knowledge of database capabilities and API-driven integration frameworks. Strong knowledge of SQL. Solid understanding of data formats including JSON and XML.\n
 * Experience developing solutions on an AI platform such as Palantir is a plus.\n
 * 3 5 years of application development experience on a modern stack (e.g., .NET 6+/C#, Node.js/TypeScript, Python, Ruby Ruby on Rails/Sinatra/ActiveRecord) building RESTful services, event-driven components, and CI/CD-backed deployments; familiarity with containers and cloud services is a plus.\n
 * Working knowledge of DevSecOps practices and tools (DAST/SAST/SCA/secrets scanning) and severity-based remediation workflows in CI/CD. Examples of tools include Checkmarx, OWASP, GitHub, Snyk, Terrasan and Terraform\n
 * Practical experience with secure file transfer (SFTP), key management, and PGP encryption in automated pipelines.\n
 * Knowledge of cloud platforms such as AWS, Azure and Microsoft Office 365.\n
 * Experience working on projects using an Agile approach and the Scrum framework.\n
 * Constant learner with a passion for continuous growth and improvement.\n
 * Strong interpersonal and communication skills. Strong team player with a collaborative mindset.\n



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