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This posting is for an opportunity ranging in years of experience.  Level of opportunity, including compensation, will be matched to a candidate's experience. If you’re excited about the work but your experience level differs – PLEASE APPLY!

At Leidos, we deliver innovative solutions through the efforts of our diverse and talented people who are dedicated to our customers’ success. We empower our teams, contribute to our communities, and operate sustainably. Everything we do is built on a commitment to do the right thing for our customers, our people, and our community. Our Mission, Vision, and Values guide the way we do business.

Your greatest work is ahead!

Leidos’ Defense Sensors is seeking a Cloud Network Engineers to join our team…with the ability and experience to work missile defense projects within the BMD Simulations and Analysis Portfolio. As a Cloud Network Engineer, you will design, build, and operate high-performance, zero-trust network architecture spanning on-premises data centers, public cloud environments (e.g., AWS, Azure), and classified enclave-based domains. Operating primarily on-site at customer locations in Huntsville, AL, you will drive mission-critical network modernization, focusing on software-defined networking (SDN), hybrid-cloud connectivity, and container-native networking within Kubernetes ecosystems.

If this sounds like the kind of environment where you can thrive, keep reading!

Leidos Defense Systems Sector provides a diverse portfolio of systems, solutions, and services covering land, sea, air, space, and cyberspace for customers worldwide. Solutions for Defense include enterprise and mission IT, large-scale intelligence systems, command and control, geospatial and data analytics, cybersecurity, logistics, training, and intelligence analysis and operations support. Our team is solving the world’s toughest security challenges for customers with “can’t fail” missions. To explore and learn more, click here!

Are you ready to make an impact? Share your resume with us today!

Primary Responsibilities

• Design & Deploy Secure Networks

• Architect and configure restricted computer networks and secure inter domain routes.

• Implement network segmentation, access controls, and policy enforcement across cloud and on premise resources.

• Cloud & Multicast Networking

• Build and manage cloud networking infrastructure (AWS, Azure, GCP, etc.).

• Configure and troubleshoot multicast UDP and broadcast UDP traffic for high throughput applications.

• Software Defined & Hardware Defined Solutions

• Deploy and maintain Software Defined Network (SDN) platforms and hardware based network appliances.

• Integrate network services with Kubernetes using CNI plugins and container based networking.

• Hybrid Cloud Integration

• Connect remote cloud instances to on premise data centers, ensuring reliable routing and latency optimization.

• Support hybrid cloud architectures and remote enclave connectivity.

• Automation & Monitoring

• Automate network provisioning and changes using IaC tools (e.g., Terraform, Ansible).

• Implement robust monitoring, logging, and alerting for network health and security events.

• Collaboration & Documentation

• Work closely with security, DevOps, and application teams to define network access protocols and rules.

• Produce clear documentation, runbooks, and knowledge base articles for all network solutions.

Basic Qualifications

This posting is for an opportunity ranging in years of experience.  Level of opportunity, including compensation, will be matched to a candidate's experience. If you’re excited about the work but your experience level differs – PLEASE APPLY!

• Bachelor’s degree with 5 years of prior relevant experience or master’s with 3 years of prior relevant experience

• Network Design Experience: Proven experience setting up restricted/compliant networks and securing inter domain/enclave communication.

• Cloud Networking: Hands on experience with cloud networking services (VPC, VNets, peering, transit gateways).

• Linux Operation Systems: Experience with Linux OS

• Multicast/UDP: Practical knowledge of multicast UDP and broadcast UDP traffic handling.

• SDN / Hardware Defined Networking: Experience with both software defined and hardware defined networking technologies.

• Kubernetes Based Networking: Direct experience designing, deploying, and troubleshooting networking within Kubernetes clusters.

• Secure Routing Across Domains: Ability to create and manage secure routing paths between isolated domains or enclaves.

• Active secret clearance

• Full time onsite support

• Candidate must be a resident of the North Alabama area

Preferred Qualifications

• CNI Expertise – Experience with one or more Container Network Interfaces (CNI): Cilium, Calico, Multus, or similar.

• Enterprise Software Hosting – Background deploying and supporting enterprise grade applications in production environments.

• Network Access Policy Development – Experience defining and governing network access protocols, firewall rules, and zero trust policies.

• Container Mesh Architecture – Familiarity with container-based network meshes (e.g., Istio, Linkerd) and service mesh concepts.

• Cloud to Cloud Routing – Experience routing traffic between multiple cloud service provider instances.

• Hybrid Cloud Infrastructure – Proven work with hybrid cloud models linking remote clouds to on premise resources.

• Strong analytical and problem-solving abilities; comfortable troubleshooting complex network issues.

• Excellent communication skills – able to translate technical concepts for non technical stakeholders.

• Proactive mindset with a focus on security, reliability, and scalability.

• Ability to work autonomously and as part of a cross functional team.

• Relevant certifications (e.g., CCNA/CCNP, AWS Certified Advanced Networking, Certified Kubernetes Administrator) are a plus.

If you're looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo — because the mission demands it. We're not hiring followers. We're recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We're already at step 30 — and moving faster than anyone else dares.

Original Posting:

Pay Range:

The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.