Senior Network Engineer

As a Senior Network Engineer at ManTech, you'll take charge of engineering and operational support for cloud instances, ensuring smooth data flows across various controlled interfaces. You'll manage and expand our classified Platform-as-a-Solution environment, design and implement new network connections, and tackle tasks like installing and maintaining Cisco virtual appliances. Your role will also involve configuring and troubleshooting essential network components including DNS, firewalls, and routing tables, along with developing Ansible playbooks for deployment automation.

To be considered for the Senior Network Engineer role at ManTech, candidates must hold a master’s degree in Computer Science, Engineering, or Mathematics, or an equivalent qualification. A minimum of 10 years of related network engineering experience is also required, along with an IAT Level 2 Certification or higher. Additionally, candidates must maintain certifications for the applicable Operating Systems, such as Microsoft Server or SQL Database, and possess a current TS/SCI clearance.

While not mandatory, candidates for the Senior Network Engineer role at ManTech are encouraged to have advanced certifications such as CCNA Cloud, MCSE Cloud Platform, or Professional Cloud Network Engineer. Hands-on experience with VLAN routing and networking devices from brands like Brocade, Juniper, Palo Alto, and Cisco will also be advantageous, along with additional operating system certifications for Microsoft, Linux, or VMware.

Yes, a valid U.S. Citizenship and an active TS/SCI clearance that has been adjudicated within the last six years are essential to be considered for the Senior Network Engineer position at ManTech. This is crucial for working in our classified environments, which handle sensitive information and projects.

The Senior Network Engineer at ManTech plays a vital role in ensuring the reliability and efficiency of our cloud infrastructure, directly impacting high-visibility and mission-critical programs. By designing new network connections and automating deployments, you'll contribute to the optimization of our operations. Your leadership and technical skills will guide less experienced team members, ensuring successful project outcomes and client satisfaction.

In answering this question, emphasize your hands-on experience with Cisco virtual appliances. Discuss specific projects where you've installed, configured, or maintained these devices, and mention any challenges you faced and how you overcame them. Highlight your understanding of features like VPN tunneling and RADIUS user authentication to demonstrate your expertise.

This question allows you to showcase your technical knowledge. Discuss specific network components such as DNS, firewalls, and routing tables that you’ve worked with. Give examples of issues you resolved, detailing the troubleshooting steps you took. This will show your analytical and problem-solving skills.

In your response, explain your methodology for developing Ansible playbooks, including how you gather requirements, design the playbooks, and test them. Discuss any specific use cases where automation improved efficiency or reliability in your past roles, and mention any collaboration with other team members.

When discussing your cloud experience, highlight any PaaS projects you have been involved with. Explain your responsibilities, including network design and management in cloud settings. Mention any relevant certifications and how they have helped you in your role. This demonstrates your capability in handling cloud environments.

Employers want to know how proactive you are about your professional development. Discuss your strategies for staying updated, such as attending workshops, participating in webinars, or following credible blogs and publications in network engineering. Share your commitment to continuous learning, showcasing your enthusiasm for the field.

In your answer, provide a specific example of a project where you managed junior engineers or new hires. Detail your approach to mentorship, including how you ensured they understood their tasks and how you fostered a collaborative environment. This highlights your leadership abilities and team management skills.

Share your systematic approach to troubleshooting, such as using diagnostic tools, verifying configurations, and isolating the problem. Discuss any specific incidents where your troubleshooting saved critical downtime or resolved complex issues, showcasing your problem-solving skills. This reassures the interviewer of your technical competence.

When addressing this question, emphasize your communication skills. Discuss the techniques you use to simplify jargon and make concepts relatable. Providing an example of a time you successfully communicated a technical issue to a non-technical audience showcases your ability to bridge the gap between technical and non-technical stakeholders.

In responding, detail the factors like security policies, traffic flow requirements, and compliance needs that guide your firewall configurations. Share specific configurations you've implemented, emphasizing your foresight in preventing and responding to potential threats, thereby displaying your attentiveness to security.

Discuss the importance of documentation in maintaining operational continuity, aiding team collaboration, and serving as a reference for troubleshooting. Share your practices for effective documentation, such as keeping records updated and ensuring accessibility for your team, which demonstrates your organizational skills.