Principal Platform Software Engineer

We need to output HTML fragment with sections: h3 headings for sections present. Must not repeat job title. Must include only sections with real content. Remove boilerplate. We need to parse the posting. Key info: - Date posted, location, role type: Onsite. Might include location and role type as metadata in a short p. - Security clearance requirements: Active and transferable US gov security clearance required prior to start date. US citizenship required. DoD Clearance: Secret. Ability to obtain interim clearance required prior to start date. - About RTX: description paragraph. - Role: Principal Platform Engineer, Missile Defense Sensors (MDS) Software Department. - What You Will Do: list of responsibilities. - Qualifications You Must Have: list. - Qualifications We Prefer: list. - Salary range: 107,500 USD - 204,500 USD. - Benefits: list of benefits (medical, dental, vision, life insurance, short-term disability, long-term disability, 401(k) match, flexible spending accounts, flexible work schedules, employee assistance program, Employee Scholar Program, parental leave, paid time off, holidays). Also mention annual short-term and/or long-term incentive compensation programs. - Possibly schedule: not specified; we should not create Schedule section unless stated. Not present. - Pay: we have salary range, so we can create Pay section. - Benefits: we have benefits list, so create Benefits section. - Possibly "About the role" or "About the company"? The instruction says use h3 for section headings (e.g. About the role, Responsibilities, Requirements, Qualifications, Skills, Benefits, Pay, Schedule). We need to decide which headings to use based on content. We have: - About the company (RTX description) could be "About the role" or maybe "About the company". But we can use "About the role" for description of role and company. - Responsibilities: "What You Will Do". - Requirements: maybe "Qualifications You Must Have" (mandatory). Could be "Requirements". - Qualifications: "Qualifications We Prefer" could be "Preferred Qualifications" but instruction only lists Qualifications as a heading. Could combine mandatory and preferred under Qualifications? But better to separate: maybe "Requirements" for mandatory, "Preferred Qualifications" for preferred. However instruction only gave examples; we can use other headings if needed? It says use h3 for section headings (e.g. About the role, Responsibilities, Requirements, Qualifications, Skills, Benefits, Pay, Schedule). It doesn't forbid other headings, but suggests those as examples. Safer to stick to those headings. We could map: - About the role: includes company description and role overview. - Responsibilities: "What You Will Do". - Requirements: mandatory qualifications. - Qualifications: preferred qualifications. - Benefits: benefits. - Pay: salary range. We might also include a short p for metadata like location, role type, clearance, citizenship. We must not include Job ID/requisition numbers. We must not include boilerplate like EEO, privacy policy, etc. We must not include application instructions like "Learn More & Apply Now", "Please ensure the role type defined below is appropriate for your needs before applying", etc. We must not include duplicated lines. We must preserve all substantive information. Let's extract substantive content: - Date posted: 2026-09-24 (maybe not needed but could be included in metadata p). Not required but could be included. - Country: United States of America. - Location: US-MA-WOBURN-WB1 ~ 235 Presidential Way ~ SPENCER BLDG - Position Role Type: Onsite - U.S. Citizen, U.S. Person, or Immigration Status Requirements: Active and transferable U.S. government issued security clearance is required prior to start date. U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance - Security Clearance Type: DoD Clearance: Secret - Security Clearance Status: Ability to obtain INTERIM U.S. government issued security clearance is required prior to start date. We can combine clearance and citizenship into a short p. - At RTX, the world's largest aerospace and defense company... (company description). We'll include in About the role. - 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. This will be an onsite role in either Woburn, MA or Tewksbury, MA depending on the program assigned. - What You Will Do: list bullet points. - Qualifications You Must Have: list. - Qualifications We Prefer: list. - Salary range: 107,500 USD - 204,500 USD. - Benefits: list. - Additional info about incentive compensation, etc. Might be part of Benefits or Pay? It mentions annual short-term and/or long-term incentive compensation programs depending on level, not guaranteed. Could be included in Benefits as "incentive compensation programs". Or maybe separate but we can include in Benefits. - Also note: "Hired applicants may be eligible for benefits, including but not limited to, medical, dental, vision, life insurance, short-term disability, long-term disability, 401(k) match, flexible spending accounts, flexible work schedules, employee assistance program, Employee Scholar Program, parental leave, paid time off, and holidays." That's benefits. - Also: "Hired applicants may be eligible for annual short-term and/or long-term incentive compensation programs depending on the level of the position and whether or not it is covered by a collective-bargaining agreement." Could be part of Benefits or Pay. We'll include in Benefits as "annual short-term and/or long-term incentive compensation programs". - Also: "This role is a U.S.-based role. If the successful candidate resides in a U.S. territory, the appropriate pay structure and benefits will apply." Could be included in Pay or Benefits note. - Also: "RTX anticipates the application window closing approximately 40 days from the date the notice was posted." That's application instruction; we should remove. - Also: "RTX is an Equal Opportunity Employer..." remove. - Also: "Privacy Policy and Terms: Click on this link to read the Policy and Terms" remove. Now produce HTML. We need to wrap sections in appropriate tags. We'll start with a p for metadata: maybe include date posted, location, role type, clearance, citizenship. But we must not repeat job title. So we can have:

Posted: 2026-09-24 • Location: 235 Presidential Way, Spencer Bldg, Woburn, MA • Role type: Onsite • U.S. citizenship required • Active Secret clearance required (interim eligibility acceptable)

We need to preserve all substantive information: we included location, date posted, role type, citizenship, clearance. Good. Now sections:

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. This will be an onsite role in either Woburn, MA or Tewksbury, MA depending on the program assigned.

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

• Typically requires a Bachelor’s in Science, Technology, Engineering or Mathematics (STEM) and a minimum of 8 years of prior relevant experience unless prohibited by local laws/regulations.
• Expertise in Linux platform engineering and administration.
• Experience architecting or leading mission-critical platform and DevSecOps environments for real-time systems.
• Experience with Docker, Kubernetes, Terraform, Ansible and virtualization tools such as VMware/KVM.
• Experience with scripting and automation tools such as Python, Bash and/or PowerShell.
• Experience with CI/CD systems and secure build/deployment architectures.
• The ability to obtain and maintain a U.S. government-issued security clearance is required prior to start date.
• U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance.

Qualifications

• Experience with network configuration, protocols, and troubleshooting tools.
• Experience with large-scale, real-time systems, including radar or Command and Control systems or similar.
• Experience with DevSecOps practices and tools.
• Experience with graphing software such as Grafana.
• Experience with Agile management tools such as JIRA and Confluence.
• Experience with advanced performance tuning, monitoring, and troubleshooting of system platforms.
• Experience in high‑availability systems, distributed architectures, or high‑performance computing environments.
• Strong analytical and problem-solving skills.
• Proven ability to work in a fast-paced, dynamic environment with time-critical requirements.
• Experience leading teams or mentoring junior engineers to develop technical skills and foster collaboration.