Principal Platform Software Engineer

Location: Woburn, MA or Tewksbury, MA (onsite). Role type: Onsite.

About the role

At RTX, the world's largest aerospace and defense company, 185,000 great minds are united by purpose and inspired to make a difference solving the world’s most complex problems. With our three market‑leading businesses, world‑class operations and investments in research and development, we offer capabilities and opportunity no one else can. Together, we push the boundaries of known science and find new ways to connect and protect our world. Raytheon brings the strength of more than 100 years of experience and renowned engineering expertise to meet the needs of today’s mission and stay ahead of tomorrow’s threat. We deliver solutions that help our nation and allies defend freedoms and deter aggression, creating a safer, more secure world.

We are seeking a Principal Platform Engineer to join the Missile Defense Sensors (MDS) Software Department. The MDS Software mission is to provide world‑class radar and Command and Control (C2) Software for our customers’ wide array of surveillance and warning systems. Platform Engineers are responsible for designing, optimizing, and maintaining the critical software infrastructure that underpins these systems. The ideal candidate will bring experience in platform design, system integration, automation, and performance optimization, as well as the ability to collaborate across teams to deliver high‑quality solutions.

Responsibilities

• Own the design, development, and maintenance of the platform architecture and modernization strategies that support mission‑critical radar and Command and/or Control systems.
• Architect and spearhead the development and management of advanced tools and frameworks to ensure secure, automated build, test and release processes at scale using CI/CD pipelines and DevSecOps workflows.
• Collaborate with cross‑functional teams, including software developers, system engineers, and test teams, to ensure seamless integration of application software into system platforms.
• Drive the optimization of platform performance, reliability, and scalability to meet the specific needs of defense programs.
• Architect and maintain secure computing environments, adhering to cybersecurity best practices and compliance standards.
• Lead and execute advanced system‑level integration, troubleshooting, and debugging of platform‑related issues during development, testing, and operational phases.
• Champion efforts to improve platform automation and monitoring, leveraging tools such as Ansible, Terraform, and Kubernetes.
• Provide leadership in an Agile Scrum/Kanban environment, supporting planning, estimation and technical execution.
• Represent the platform engineering discipline in major design reviews, customer meetings and technical boards.
• Establish platform engineering standards and best practices driving initiatives that raise DevSecOps maturity, expand Infrastructure‑as‑Code adoption, and increase automation coverage.
• Provide mentorship to junior and senior engineers and contribute to knowledge‑sharing within the team.

Requirements

• Active and transferable