Platform Development Software Engineer

Modern Technology Solutions, Inc. (MTSI); Beavercreek (OH); On-site; USD 120,000 - 160,000; Full time

Job summary

Modern Technology Solutions, Inc. (MTSI) seeks a Senior Software Engineer to transform a legacy Tomcat web app into a modern, containerized microservices architecture. You will design, implement, and maintain core services using Golang and Angular while preserving functionality.

You will lead migration to Kubernetes, optimize CI/CD, and collaborate with cross-functional teams to deliver secure, scalable cloud-native solutions.

Qualifications

• Bachelor's degree in Computer Science, Software Engineering, or related field.
• 5+ years hands-on software engineering experience.
• Proficiency in Java development (8/21) with JSP/JSTL/CDI and Spring.
• Experience maintaining and modernizing Tomcat web apps and Kubernetes environments.
• Strong front-end skills: Angular, Bootstrap, CSS/SCSS, JavaScript, jQuery.
• Experience refactoring monoliths to microservices and integrating enterprise services.
• Familiarity with container orchestration and secure CI/CD practices.
• U.S. Citizenship and ability to obtain TS/SCI clearance preferred.

Responsibilities

• Own large sections of system architecture and collaborate across teams.
• Drive agile development practices and CI/CD pipelines.
• Translate complex designs into scalable microservices with Go and Java.
• Refactor legacy Tomcat application into cloud-native microservices.
• Document designs, integration requirements, and transition plans.
• Ensure security, reliability, and performance in Kubernetes deployments.

Skills

Software architecture

Cross-functional teamwork

Communication

Education

Bachelor's degree in CS/SE or related

Tools

Java (8/21)

JSP/JSTL/CDI

Spring

Angular

Bootstrap/CSS/SCSS/JS

JQuery

Kubernetes

Golang

CI/CD pipelines

Job description

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 be open to obtaining a TS/SCI security clearance
• Active TS/SCI is desired

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