Systems Architect, Senior Advisor with CMS Experience with Security Clearance

About Peraton Peraton is a next-generation national security company that drives missions of consequence spanning the globe and extending to the farthest reaches of the galaxy. As the world's leading mission capability integrator and transformative enterprise IT provider, we deliver trusted, highly differentiated solutions and technologies to protect our nation and allies. Peraton operates at the critical nexus between traditional and nontraditional threats across all domains: land, sea, space, air, and cyberspace.

The company serves as a valued partner to essential government agencies and supports every branch of the U.S. armed forces. Each day, our employees solve the most daunting challenges that our customers face. Visit peraton.com to learn how we're keeping people around the world safe and secure.

About The Role We are seeking a highly experienced, forward-thinking Senior Systems / Solutions Architect to provide architectural leadership, technical direction, and innovation for the Medicare Advantage Prescription Drug System (MARx), a mission-critical system supporting the Centers for Medicare & Medicaid Services (CMS).

MARx supports complex, high-volume Medicare Advantage and Part D enrollment processing, premium calculations, plan payment operations, and information exchanges with numerous internal CMS systems and external partner organizations, including Medicare Advantage Organizations and Prescription Drug Plans.

The successful candidate will be responsible for defining and evolving the system architecture to ensure scalability, reliability, performance, security, maintainability, and operational efficiency, while supporting changing Medicare business requirements, federal regulations, and legislative mandates. The architect will work closely with CMS business owners, the CMS Office of Information Technology (OIT), program management, and cross-functional technical teams spanning business analysis, software design, development, testing, infrastructure, cybersecurity, and production operations.

This position requires a unique combination of strong technical architecture expertise, deep understanding of complex business processing systems, strategic thinking, and hands-on technical leadership. Beyond traditional architecture responsibilities, the individual will serve as a trusted technical advisor, thought leader, and mentor-driving innovation, promoting engineering excellence, identifying optimization opportunities, and helping shape the long-term evolution of MARx.
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Key Responsibilities
1. Enterprise Systems Architecture and Technical Leadership

• Own and evolve the overall solution architecture for MARx, ensuring alignment with CMS business objectives, technology standards, and long-term modernization strategies.
• Define architectural principles, technical standards, design patterns, and implementation guidelines for system development and enhancement.
• Lead architectural design for complex, high-volume transaction processing and data-intensive business applications.
• Ensure the architecture supports scalability, high availability, fault tolerance, performance, security, and maintainability.
• Evaluate architectural alternatives and recommend solutions based on technical feasibility, business value, operational impact, and total cost of ownership.
• Provide technical leadership for modernization initiatives, architectural improvements, and integration of emerging technologies.
• Maintain architectural documentation, including system context diagrams, component architectures, data flows, integration patterns, and technical decision records.
• Conduct design reviews and provide architectural oversight throughout the software development lifecycle.
• Identify and proactively address architectural risks, technical debt, and system bottlenecks.

2. Medicare Business Domain and Complex Transaction Processing

• Develop and maintain a comprehensive understanding of MARx business operations, including: o Medicare Advantage and Part D enrollment and disenrollment processing. o Premium calculation and withholding. o Medicare Advantage and Part D plan payment processing. o Retroactive adjustments, reconciliations, and payment corrections. o Data exchanges with Medicare Advantage Organizations, Prescription Drug Plans, and other CMS systems.
• Architect solutions supporting high-volume, complex business transactions with stringent requirements for accuracy, timeliness, traceability, and reliability.
• Ensure appropriate controls for financial processing, including transaction integrity, reconciliation, auditability, and prevention of duplicate or erroneous payments.
• Design solutions capable of accommodating evolving Medicare policies, regulatory requirements, and legislative mandates.
• Collaborate with business stakeholders to translate complex Medicare requirements into scalable, maintainable technical solutions.
• Promote flexible and configurable architectures that minimize the effort required to implement future policy and business rule changes.

3. AWS Cloud Architecture and Infrastructure Optimization

• Provide architectural leadership for MARx applications and services deployed on the AWS platform.
• Design and optimize cloud-native solutions leveraging appropriate AWS services for computing, storage, databases, networking, integration, monitoring, and security.
• Establish architecture patterns for high availability, resilience, fault tolerance, disaster recovery, and business continuity.
• Optimize cloud infrastructure for performance, scalability, reliability, and cost efficiency.
• Collaborate with infrastructure and DevSecOps teams to implement Infrastructure as Code, automated deployments, and environment standardization.
• Establish effective observability capabilities, including centralized logging, monitoring, distributed tracing, and proactive alerting.
• Evaluate and recommend AWS services and architectural improvements based on evolving business and technical requirements.
• Ensure alignment with CMS security policies, federal cloud requirements, and applicable compliance standards.

4. PostgreSQL Database and Data Architecture

• Provide architectural oversight for PostgreSQL-based data management and transaction processing.
• Design and optimize database schemas, data models, indexing strategies, queries, and transaction management approaches.
• Address database performance, scalability, concurrency, and data integrity requirements associated with high-volume transaction processing.
• Develop strategies for efficient batch processing, bulk data operations, and large-scale data movement.
• Ensure appropriate database availability, backup, recovery, and disaster recovery capabilities.
• Establish data retention, archival, partitioning, and lifecycle management strategies.
• Collaborate with database engineers and development teams to identify and resolve performance bottlenecks.
• Promote consistent data architecture practices, data quality, traceability, and auditability.

5. Golang Application Architecture and Engineering Excellence

• Provide architectural direction for applications and services developed using Golang (Go).
• Define and promote appropriate application structures, design patterns, coding standards, and reusable frameworks.
• Guide the design of high-performance, concurrent, and scalable Go-based services.
• Establish best practices for API development, database connectivity, transaction management, error handling, and service integration.
• Promote effective use of Go's concurrency capabilities while ensuring reliability, resource efficiency, and maintainability.
• Collaborate with development teams to review critical implementations and resolve complex technical challenges.
• Encourage automated testing, code quality, secure coding, and performance optimization.
• Evaluate emerging Go libraries, frameworks, and development practices for potential adoption.

6. Systems Integration and Interface Architecture

• Define and oversee integration architecture supporting numerous internal CMS systems and external partner organizations.
• Design secure, reliable, and scalable interfaces supporting high-volume data exchanges and business transactions.
• Establish standards for RESTful APIs, asynchronous messaging, batch interfaces, and file-based integrations.
• Address complex integration requirements involving: o Medicare Advantage Organizations and Prescription Drug Plans. o CMS internal business systems. o Federal agencies and other authorized external partners. o Financial and payment-related processing systems.
• Ensure interfaces incorporate appropriate validation, error handling, retry mechanisms, reconciliation, and operational monitoring.
• Establish strategies for API versioning, backward compatibility, interface modernization, and partner onboarding.
• Promote reusable integration capabilities and standardized data exchange patterns.
• Design for end-to-end transaction traceability across multiple applications and organizational boundaries.

7. Performance, Scalability, and Operational Reliability

• Establish architectural approaches for processing large transaction volumes within required business processing windows.
• Identify and resolve performance bottlenecks across applications, databases, interfaces, and infrastructure.
• Define performance engineering strategies, capacity planning approaches, and scalability requirements.
• Guide architecture for complex batch processing, transaction orchestration, scheduling, and exception management.
• Ensure systems support appropriate recovery, restartability, idempotency, and transaction consistency.
• Collaborate with testing and operations teams to establish performance benchmarks, load testing strategies, and reliability objectives.
• Support root-cause analysis of critical production incidents and recommend long-term architectural improvements.
• Promote proactive monitoring, operat