Principal Platform Architect; Onsite Security Clearance

Position: Principal Platform Architect (Onsite) with Security Clearance
Date Posted:

Country:
United States of America

Location:

US-TX-RICHARDSON-C27 ~ 1727 Cityline Dr ~ CITYLINE C27
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: TS/SCI without Polygraph
Security Clearance Status:
Active and existing security clearance required on day 1 At Raytheon, the foundation of everything we do is rooted in our values and a higher calling - to help our nation and allies defend freedoms and deter aggression. We bring 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.

Our team solves tough, meaningful problems that create a safer, more secure world. We are seeking a Principal Platform Architect to lead the design and evolution of our Internal Developer Portal and Developer Experience ecosystem. This role focuses on building intuitive, self-service workflows that enable development teams to onboard, deploy, and operate software efficiently across secure environments. You will operate at the intersection of product, platform, and users - translating developer needs into usable platform capabilities.

The role requires strong frontend engineering instincts, backed by solid backend and cloud-native platform knowledge. You will help define how engineers interact with the platform - not just build services but design the experience. This position involves architecting UI workflows, integrating APIs, enabling self-service automation, and shaping platform standards used across multiple programs and security domains. What Makes This Role Unique This is not a traditional backend platform engineering role.

You will design how developers interact with the platform itself - shaping onboarding, automation, and daily workflows across a large engineering organization. Success in this role is measured by developer adoption, efficiency, and satisfaction. You will be the person who turns infrastructure into a usable product. What You Will Do
* Architect and implement an Internal Developer Portal (IDP)

* Design user-focused workflows for onboarding, resource provisioning, and lifecycle management

* Develop frontend experiences using modern web frameworks (React/Type Script)

* Implement backend services and APIs supporting the portal (Python/FastAPI)

* Integrate platform systems (Kubernetes, CI/CD, identity, secrets, cost services, and infrastructure automation)

* Partner with platform teams to convert infrastructure capabilities into self-service products

* Improve usability, adoption, and developer satisfaction across the platform

* Define and evolve developer experience standards and patterns

* Gather feedback from engineering teams and translate it into product improvements

* Create documentation and enablement materials

* Communicate technical concepts to both engineers and leadership Qualifications You Must Have
* Typically requires BS/BA Degree in Science, Technology Engineering Math (STEM) in Computer Science, Computer Engineering, Information Technology or Physics and a minimum 8 years of related work experience

* Experience with Windows and Linux operating systems (RHEL 8+ preferred)

* Proficiency in one or more of the following:
Programming:
Python, Java, Type Script, Golang, Rust, Shell;
Frameworks:
React/Next.js, Flask, Spring Boot, Svelte;
Infrastructure as Code:
Terraform, Ansible or equivalent;
Data formats: JSON, XML, YAML, SQL

* Experience in one or more of the following:
Cloud platforms: AWS, Azure, or similar on-prem/self-hosted infrastructure;
Containerization:
Docker, Podman;
Orchestration:
Kubernetes, Rancher;
Databases:
Postgre

SQL, Mongo

DB;
Product tooling:
Jira / Atlassian ecosystem;
Observability platforms;
Generative AI developer tooling

* Active and transferable DOD TS/SCI security clearance is required on Day 1. U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance Qualifications We Prefer
* Experience building or supporting Internal Developer Platforms (IDPs)

* Experience improving developer workflows or platform usability

* Background in DoD, Intelligence, or Space environments

* Experience working in scaled agile environments

* Experience leading platform or product initiatives

* Modern Dev Sec Ops  practices

* Software testing methodologies

* RESTful API and distributed architecture design

* Secure system design principles

* Technical documentation

* Ability to understand business, product, and engineering context simultaneously

* Ability to research, prototype, and recommend platform strategy

* Experience defining engineering standards and processes

What We Offer
* Our values drive our actions, behaviors, and performance with a vision for a safer, more connected world. At RTX we value:
Safety, Trust, Respect,…