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Platform Development Software Engineer
Modern Technology Solutions, Inc.Beavercreek, United Statesfull_timeVerifiedPosted 17 Aug 2026
About the role
MTSI is seeking a Senior Software Engineer to play a critical role in the transformation of a legacy Tomcat web application into a modern, containerized microservices architecture. This highly visible and mission-critical role will involve maintaining and transitioning the existing Tomcat-based system while simultaneously redesigning core services to leverage emerging enterprise services and implement a new architecture using Golang and Angular.
Job Description:
- Maintain and enhance a legacy Tomcat web application while planning its transition to a cloud-native architecture.
- Redesign the application for deployment within a Kubernetes cluster to ensure scalability, reliability, and security.
- Refactor traditional monolithic structures into modular microservices using modern integration strategies and emerging enterprise services.
- Collaborate with cross-functional engineering teams to ensure smooth integration of new services following industry best practices.
- Develop and maintain software components using Java (Java 8 and Java 21), utilizing technologies such as JSP, JSTL, CDI, and Spring alongside a responsive user interface that leverages Bootstrap, CSS, SCSS, JavaScript, and JQuery.
- Implement new architecture by leveraging Golang-based services and Angular for a modernized front-end experience.
- Document technical designs, system integration requirements, and transition processes in support of ongoing and future initiatives.
Responsibilities:
- Take ownership of large sections of the system architecture while working collaboratively with teams.
- Drive agile development practices and support robust continuous integration/continuous delivery (CI/CD) pipelines.
- Clearly articulate complex system designs and technical concepts to both technical and non-technical stakeholders.
- Oversee the evolution of the software process from development through deployment, ensuring efficient and secure code integration.
- Engage in continuous process improvement to enhance software quality, performance, and reliability.
Required Qualifications:
- Bachelor’s degree in Computer Science, Software Engineering, or a related technical field.
- 5+ years of hands-on software engineering experience.
- Proficiency in Java development (Java 8 and Java 21) with expertise in JSP, JSTL, CDI, and Spring frameworks.
- Proven experience in maintaining and modernizing web applications, particularly within Tomcat and Kubernetes environments.
- Solid expertise in modern front-end technologies, including Angular, Bootstrap (versions 4 and 5), CSS, SCSS, JavaScript, and JQuery.
- Experience in refactoring monolithic applications into microservices and integrating emerging enterprise services.
- Familiarity with container orchestration and deployment best practices.
- Strong problem-solving skills and excellent written and verbal communication abilities.
- U.S. Citizenship and must possess an active TS/SCI security clearance or a TS clearance with SCI eligibility.
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