Senior System Architect

System Architect – Enterprise Cross Domain Systems (ECDS)
Position Overview

We are seeking a System Architect to support Enterprise Cross Domain Systems (ECDS) and related initiatives. These systems enable reliable and secure data transfers between multiple security domains for both general users and mission programs.

In this role, you will be responsible for designing, developing, and overseeing complex, scalable system architectures
, working closely with cross-functional teams to translate operational and business requirements into robust, secure, and high-performing technical solutions
.

• Define system architecture: Lead the design, development, and documentation of system architectures for new systems, features, and services

• Conduct feasibility and risk assessments: Evaluate technical feasibility, architectural tradeoffs, and implementation risks for proposed designs

• Develop technical roadmaps: Define and maintain long-term architecture and modernization roadmaps

• Ensure scalability and performance: Design systems capable of supporting high data throughput, availability, and performance requirements

• Collaborate with engineering teams: Provide architectural guidance and technical leadership throughout the system development lifecycle

• Evaluate emerging technologies: Research new technologies and assess their applicability to enterprise and cross-domain environments

• Ensure security and reliability: Architect solutions that meet security, availability, and resiliency requirements across multiple domains

• Communicate effectively: Translate complex technical concepts for both technical and non-technical stakeholders

• 4–6 years of relevant systems or architecture experience

• Bachelor's degree in a technical discipline (e.g., Information Technology, Information Systems, Computer Science)

• DoD 8140 / DoD 8570 IAT Level II certification

• Active TS/SCI security clearance

  • Ability to obtain and maintain a CI polygraph within six (6) months of start date

  • U.S. citizenship required

SITEC is an employee- and customer-focused Information Technology and Professional Services firm specializing in the design, development, and delivery of state-of-the-art technology solutions. Our expertise spans cybersecurity, software engineering, and systems engineering in support of mission-critical government programs.

We provide full life-cycle support to our customers, including continuous operations for Software Support Activities and Software Production Facilities. At SITEC, our people are our greatest asset, and we are committed to fostering an environment where technical excellence, innovation, and professional growth thrive.