Agile Release Train Senior System Architect

CACI International

2d•$114,600 - $252,100•Hybrid

About The Position

CACI is seeking an accomplished Senior System Architect to lead the end‑to‑end technical design and architectural governance of a cloud‑native, web‑based customer system. This position oversees system architecture, API strategy, data integration frameworks, modernization patterns, and technical alignment across multiple development teams. The architect will drive technology decisions, ensure system scalability and security, and guide engineering teams in building a resilient and extensible enterprise solution.

Requirements

Bachelor’s degree in Computer Science, Engineering, or related technical discipline.
10+ years of experience in software engineering, architecture, of enterprise web system design.
Ability to obtain and maintain a Secret Clearance.
Proven experience architecting cloud‑native web applications using AWS.
Extensive experience of web technology stacks.
Strong expertise in API architecture, integration frameworks, service mesh patterns, and identity/access management protocols (OAuth2, OIDC).
Hands‑on experience designing integrations with external systems using event streaming, REST APIs, or secure messaging.
Deep understanding of distributed system design, microservices, containers, orchestration, and application security.
Experience deploying and supporting large‑scale enterprise applications in mission‑critical environments.
Ability to mentor engineering teams, lead technical reviews, and guide modern development practices.

Nice To Haves

Active AWS Certified Solutions Architect – Professional certification
Experience modernizing data systems for DoW customers.
Experience utilizing low-code platforms to support rapid prototyping and/or solution development.
Familiarity with Zero Trust, IL5 boundary conditions, ICAM integration, and RMF compliance.
Experience working in Agile/SAFe environments with DevSecOps pipelines.

Responsibilities

Lead the overarching technical architecture for the cloud-native web application development, ensuring scalability, maintainability, and alignment with mission needs.
Define architectural standards, modernization patterns, and engineering best practices across all system modules.
Oversee API strategy including REST, OpenAPI specifications, authentication flows, and shared service integration patterns.
Architect integration solutions with external systems including information systems, identity management platforms, and government partner services.
Evaluate cloud-native design options and guide teams in implementing microservices, event-driven patterns, and secure data exchange.
Direct the engineering approach for CI/CD pipelines, DevSecOps models, and automated testing frameworks.
Provide senior technical oversight on application development, code quality, database design, and infrastructure dependencies.
Partner with Managers, Release Train Engineers, and Security Engineers to align architecture with customer requirements, standards and capability roadmaps.
Support development of architectural decision records (ADRs), as needed, and participate in technical review boards, compliance assessments, and solution engineering.
Ensure compliance with DoW cybersecurity controls, Zero Trust principles, encryption‑in‑flow / at‑rest, boundary protection, and audit requirements.
Support PI Planning, cross‑team coordination, and technical risk management within the Agile Release Train.
Serve as a senior technical advisor to project personnel and customer for long‑term platform evolution.