ECS is seeking a System Performance Engineer - Senior to support the Army National Guard (ARNG) ENOCS program in optimizing system performance and ensuring the scalability and reliability of enterprise IT environments. The selected candidate will play a critical role in analyzing and forecasting processing capacity needs, identifying potential performance risks, and recommending architecture enhancements to improve system availability and operational efficiency. This position is integral to maintaining the high standards of performance required by the ARNG's mission-critical systems.
Please Note: This position is contingent upon contract award.
Responsibilities
Qualifications
Required Qualifications

ECS is a fast-growing 4,000-person, $1.2B provider of advanced technology solutions for federal civilian, defense, intelligence, and commercial customers. We tackle complex client challenges with smart, scalable solutions in data and AI, cybersecurity, and digital transformation. Our collective work empowers customers’ missions, strengthens our partners, inspires our employees, and grows our company.
To achieve our purpose — to tackle the missions that matter most and create a lasting impact on our customers, employees, and community — we are committed to excellence in growth, customer delivery, technology innovation, and employee engagement.
We believe in:
• Attracting, developing, and retaining top talent
• Building high-performing teams
• Creating an engaging employee environment
• Acting with social responsibility
• Having a positive impact on our community
Our core values: Excellence, Drive, Grit, and Community. We keep these values at the heart of all we do. We’re looking for driven individuals who want to solve meaningful challenges and help shape the future of national security and public service. If you’re ready to make a difference, you’ll find your team here.