Principal Platform Engineer

Modern Technology Solutions, Inc. (MTSI) is searching for aPrincipal Platform Engineer located in Dayton, Ohio. Daytoday responsibilities include deploying, maintaining, and improving cloudnative and containerized platform services built on Kubernetes and Docker. The Platform Engineer will build and manage CI/CD pipelines, create deployment configurations, and maintain platform reliability across databases, search tools, and containerized applications. They will troubleshoot issues across applications, containers, and cluster infrastructure while collaborating with software, UX, QA, and product teams to support development workflows. The role includes refining platform architecture, implementing infrastructureascode practices, and advancing modernization initiatives such as microservices and secure delivery patterns. The Platform Engineer will participate in Agile ceremonies, contribute to design and code reviews, and document platform decisions to support team growth. This position requires handson ownership of platform operations and continuous improvement of engineering practices. How you will contribute to our National Security and Defense mission: As a Platform Engineer with MTSI, you will help design, implement, and sustain secure, scalable platform capabilities that support missionfocused software delivery across cloudnative and onpremise environments. You will apply modern engineering practices to build containerized and distributed systems, ensuring reliable operations through strong Kubernetes, Docker, and CI/CD expertise. Your contributions will ensure that development teams have stable, secure, and highperforming environments by deploying and integrating databases, search tools, and platform services such as PostgreSQL, Neo4j, OpenSearch, and Spark. You will take a handson role in improving platform automation, evolving microservice architectures, and strengthening infrastructureascode patterns to support mission requirements. You will work collaboratively with software, UX, QA, and product teams, translating mission needs into maintainable and repeatable platform solutions. Additionally, you will help drive continuous improvement efforts through Agile execution, technical demos, code reviews, and mentoring engineers to uplift engineering practice across the organization. This position is hybrid, with a need to work onsite or remotely depending on tasking and mission requirements. You'll be a great fit for this role if: - Strong collaboration skills, with a proven ability to work closely with software, UX, QA, platform, and product teams in fast moving mission environments. - Effective communication of technical concepts to diverse stakeholders, including mentoring junior developers and guiding engineering teams. - Demonstrated leadership in Agile environments, contributing to sprint planning, backlog refinement, demos, and cross team knowledge sharing. - Proactive problem solver able to troubleshoot complex issues across applications, containers, databases, and cluster infrastructure. - Adaptable in dynamic mission environments, with experience supporting rapid modernization and evolving architectural patterns. - Detail oriented and committed to secure, maintainable engineering practices through documentation, design reviews, and continuous improvement. Responsibilities : Your essential job functions will include but may not be limited to: Deploy, configure, and maintain IT related processes for planning, execution, and reporting to include: Azure Kubernetes Service deployments, Helm deployments, Istio integrations, Service Gateways, ArgoCD automated deployments, Docker Image building, CI/CD Pipeline deployments, Requirements management, Architecture, Integration, Verification and Validation, Transition,