Network Security Engineer III

PowerToFly; Colorado; On-site; USD 96,000 - 159,000; Full time

Job summary

Deloitte Government & Public Services seeks a Security Engineer III to lead the design, deployment, and optimization of secure, high-availability enterprise networks. You will support continuous improvement across infrastructure and DevSecOps practices, aligning with SAFe/DevSecOps methodologies.

The role requires a Bachelor's degree with 3 years of experience, TS/SCI clearance or eligibility, and onsite work in Colorado Springs, with travel ~25%.

Qualifications

• Bachelor's degree with 3 years of professional experience.
• Must be legally authorized to work in the United States without sponsorship now or in the future.
• Active TS/SCI clearance or SCI eligibility.
• Role onsite 5 days a week in Colorado Springs.
• Ability to travel 25%, on average.
• 3+ years in enterprise network design, deployment, or operations.
• Experience with networking concepts including routing, switching, firewalls, monitoring, and access management.
• Experience in Agile, DevSecOps, or similar iterative environments.

Responsibilities

• Lead hands-on deployment and configuration of physical network hardware including routers and switches.
• Test, evaluate, and optimize network systems for reliability, scalability, and security.
• Collaborate with engineering teams to support hardware testing and develop custom network solutions.
• Work within a SAFe/DevSecOps environment and contribute to continuous improvement initiatives.

Skills

Enterprise network design

Routing & Switching

Firewalls & Security

Network monitoring

DevSecOps

Agile methodologies

Education

Bachelor's degree; TS/SCI clearance

Job description

Our Deloitte Cyber team understands the unique challenges and opportunities businesses face in cybersecurity. Join our team to deliver powerful solutions to help our clients navigate the ever-changing threat landscape. Through powerful solutions and managed services that simplify complexity, we enable our clients to operate with resilience, grow with confidence, and proactively manage to secure success.

Recruiting for this role ends on 9/14/2026

As a Security Engineer III you will lead the design, deployment, and optimization of secure, high-availability enterprise network environments while supporting continuous improvement across infrastructure and DevSecOps practices-consistent with typical expectations to design, deploy, troubleshoot, and maintain complex enterprise networks.

A successful candidate would possess these skills:

• Lead hands‑on deployment and configuration of physical network hardware, including routers, switches, and associated infrastructure.
• Test, evaluate, and optimize network systems to improve reliability, scalability, and security posture.
• Partner with engineering teams to support hardware testing, architecture evaluation, and development of custom network solutions.
• Collaborate within a SAFe/DevSecOps environment, providing feedback to software development teams and contributing to continuous improvement initiatives.

The Team

Deloitte's Government & Public Services (GPS) practice - our people, ideas, technology and outcomes - is designed for impact. Serving federal, state, & local government clients as well as public higher education institutions, our team of professionals brings fresh perspective to help clients anticipate disruption, reimagine the possible, and fulfill their mission promise.

Our Enterprise Security offering embeds security in all aspects of digital transformation by securing a client's technical backbone while enabling secure digital transformation. Includes security architecture, secure development and deployment, end‑to‑end cyber cloud capabilities, application security, and security for emerging technologies and connected products.

The Project Delivery Talent Model is designed for professionals with specialized skills that align to a current client need. Team members focus on delivering services to clients, without additional expectations related to business development or promotion. Their employment is tied to their role on a project, and they are eligible for a benefits package that is competitive for project delivery‑focused professionals.

Qualifications

Required:

• Bachelor's and 3 years of professional experience
• Must be legally authorized to work in the United States without the need for employer sponsorship, now or at any time in the future.
• Active TS/SCI clearance or SCI eligibility
• This role has a requirement to be onsite 5 days a week in Colorado Springs,
• Ability to travel 25%, on average, based on the work you do and the clients and industries/sectors you serve
• 3+ years of the following experience:
  • Working with enterprise network environments, including network infrastructure design, deployment, or operations
  • Networking and security concepts, including routing, switching, firewalls, monitoring, and access management
  • Supporting network reliability, performance optimization, or troubleshooting
  • Working in large-scale environments and collaborating with infrastructure, security, and engineering teams
  • Working in Agile, DevSecOps, or similar iterative engineering environments

Preferred:

• Relevant certifications including CISSP, Network+, Security+ , or CEH

The wage range for this role takes into account the wide range of factors that are considered in making compensation decisions including but not limited to skill sets; experience and training; licensure and certifications; and other business and organizational needs. The disclosed range estimate has not been adjusted for the applicable geographic differential associated with the location at which the position may be filled. At Deloitte, it is not typical for an individual to be hired at or near the top of the range for their role and compensation decisions are dependent on the facts and circumstances of each case. A reasonable estimate of the current range is $95,600 to $159,300.

You may also be eligible to participate in a discretionary annual incentive program, subject to the rules governing the program, whereby an award, if any, depends on various factors, including, without limitation, individual and organizational performance.