1758 - Senior Kubernetes Infrastructure Developer

Sigma Defense$135K — $165K *
Rome, NY 13440In-Person
Technical Services
8 - 10 years of experience
Job Overview by Ladders

Qualifications

  • 8+ years of relevant experience.
  • Expertise in designing, deploying, and managing Kubernetes environments.
  • Hands-on experience with Microsoft Azure and Azure Kubernetes Service (AKS).
  • Thorough understanding of Kubernetes architecture and components.
  • Experience with Infrastructure as Code, particularly Terraform and Bicep.
  • Proficient in automation and scripting using tools like PowerShell or Python.
  • Must be a U.S. citizen.

Responsibilities

  • Design and maintain Kubernetes infrastructure within Azure, focusing on AKS.
  • Serve as a senior resource for architecture and infrastructure automation.
  • Automate the provisioning and management of AKS clusters.
  • Develop Infrastructure as Code modules and deployment patterns.
  • Create automated deployment processes using GitOps and CI/CD.
  • Implement secure networking and connectivity within Azure.
  • Mentor junior engineers and provide technical guidance.

Benefits

  • Dental and Vision Insurance
  • Medical Insurance with HSA, FSA, and DFSA Plans
  • Life and AD&D coverage
  • Employee Assistance Program (EAP)
  • 401(k) Plan with Company Matching Contributions
  • 160 Hours of Paid Time Off (PTO)
  • 12 Floating Holidays
  • Educational Assistance
Full Job Description
Senior Kubernetes Infrastructure Developer to be a Kubernetes platform engineer and infrastructure developer, not simply a user of Kubernetes.

This individual should understand what is happening beneath the application layer and be comfortable taking technical ownership from the Azure infrastructure and network supporting the cluster through AKS configuration, networking, identity, security, deployment automation, observability, and lifecycle management. The ideal candidate believes Kubernetes infrastructure should be built through code, version controlled, automated, repeatable, secure, and recoverable.

Requirements
  • 8+ years of relevant experience.
  • Significant professional experience designing, deploying, and operating Kubernetes environments.
  • Strong hands-on experience with Microsoft Azure and Azure Kubernetes Service (AKS).
  • Deep understanding of Kubernetes architecture, including nodes, pods, deployments, services, namespaces, ingress, configuration, secrets, and storage.
  • Experience designing and operating production Kubernetes clusters supporting enterprise workloads.
  • Strong experience with Infrastructure as Code and automated infrastructure deployment.
  • Hands-on experience with Terraform, Bicep, Helm, and Kubernetes manifests.
  • Experience developing and maintaining Helm charts.
  • Strong understanding of Kubernetes networking and integration with Azure networking services.
  • Experience implementing Kubernetes identity, authentication, authorization, and RBAC.
  • Experience integrating Kubernetes environments with Microsoft Entra ID and Azure identity technologies.
  • Experience with container security and secure cluster configuration.
  • Experience implementing automated Kubernetes deployments using CI/CD or GitOps methodologies.
  • Strong scripting and automation skills using PowerShell, Python, Bash, Azure CLI, or similar tools.
  • Must be a U.S. citizen.

Candidate Differentiators:
  • Experience designing and operating Azure Government AKS environments.
  • Experience supporting Kubernetes platforms within a Department of Defense (DoD) or other highly regulated environment.
  • Experience designing private AKS clusters and secure network architectures.
  • Experience with Azure CNI, network policies, and advanced container networking.
  • Experience with Azure Key Vault, workload identity, managed identities, and secure secrets-management patterns.
  • Experience with Azure Policy for Kubernetes and Microsoft Defender for Containers.
  • Experience with Flux or Argo CD.
  • Experience with Azure Container Registry (ACR).
  • Experience with OPA Gatekeeper, Kyverno, or comparable policy technologies.
  • Experience with Azure Monitor, Log Analytics, Prometheus, Grafana, or comparable observability platforms.
  • Experience with container image security, vulnerability scanning, and software supply-chain security.
  • Familiarity with Zero Trust architecture, DoD RMF, NIST SP 800-53, and STIGs.

Mandatory Certifications:
  • CompTIA Security+
  • Certified Kubernetes Administrator (CKA)
  • Azure Administrator Associate: AZ-104

Computer Programs/Software:
  • Azure Kubernetes Service (AKS)
  • Terraform
  • Bicep

Personnel Clearance Level:
  • Candidate must possess or have the ability to obtain an active TS/SCI security clearance.
  • Clearance may be sponsored for the right candidate.

Education Requirements:
  • Bachelor's degree from an accredited college or university in Computer Science or related field of study.

Essential Job Duties (not all-inclusive):
  • Design, build, configure, and maintain enterprise Kubernetes infrastructure within Microsoft Azure, with a primary focus on Azure Kubernetes Service (AKS).
  • Serve as a senior technical resource for Kubernetes platform architecture, infrastructure automation, cluster configuration, and troubleshooting.
  • Design scalable and resilient AKS architectures supporting mission-critical applications and services.
  • Automate provisioning and lifecycle management of AKS clusters and supporting Azure infrastructure.
  • Develop reusable Infrastructure as Code modules and deployment patterns using Terraform, Bicep, Helm, and Kubernetes manifests.
  • Develop automated deployment and configuration processes using GitOps and CI/CD methodologies.
  • Design and implement Kubernetes networking, ingress, service discovery, load balancing, and connectivity to other Azure resources.
  • Integrate AKS with Azure Virtual Networks, Private Endpoints, Private DNS, Azure Firewall, Application Gateway, Load Balancer, and other Azure networking services.
  • Design and implement secure private AKS architectures.
  • Implement Kubernetes RBAC and integrate cluster access with Microsoft Entra ID and Azure identity services.
  • Implement workload identity, managed identities, secrets management, and secure access to Azure resources.
  • Integrate Kubernetes environments with Azure Key Vault.
  • Develop and maintain Helm charts, reusable platform configurations, and standardized deployment patterns.
  • Integrate AKS with Azure Policy, Microsoft Defender for Cloud, and Defender for Containers.
  • Implement logging, monitoring, metrics, and alerting using Azure Monitor, Log Analytics, Container Insights, and related technologies.
  • Design platform capabilities supporting high availability, resiliency, scaling, backup, recovery, and cluster lifecycle management.
  • Mentor junior and mid-level engineers and provide technical guidance.

Salary Range: $135,000 - $165,000 annually.

Benefits
  • Dental and Vision Insurance
  • Medical Insurance to Include HSA, FSA, and DFSA Plans
  • Life and AD&D coverage
  • Employee Assistance Program (EAP)
  • 401(k) Plan with Company Matching Contributions
  • 160 Hours of Paid Time Off (PTO)
  • 12 (Floating) Holidays
  • Educational Assistance
  • Highly Competitive Salary

About Sigma Defense

Sigma Defense Careers

Joining Sigma Defense presents an unparalleled opportunity to become part of a leading team of defense solution professionals. This is a prime time for skilled individuals seeking job opportunities that promise both professional growth and a chance to be involved in cutting-edge innovation.

Work You’ll Do

At Sigma Defense, the focus is on empowering some of the most critical defense sectors through advanced technological solutions. The company helps these sectors master their operational challenges with robust, innovative solutions. Sigma Defense stands out in the marketplace, uniquely positioned at the nexus of technology, industry expertise, and digital innovation. This positioning allows the team to lead in the creation and implementation of transformative solutions. Professionals at Sigma Defense work alongside a global team of experts dedicated to excellence in defense solutions, driving leadership in the industry through strategic innovation and superior problem-solving capabilities.

Sigma Defense Job Opportunities

Sigma Defense is building a market-leading team to support and drive digital transformation in defense technology. The company offers a range of career paths from internships to full-time positions, focusing on cultivating leadership and advanced skills in the defense sector.

Innovative Work

Sigma Defense invites professionals to join its ranks, offering job opportunities that engage with the most trusted platforms and technologies in the defense industry. The team at Sigma Defense is known for its depth and breadth of consulting experience and a commitment to innovation that’s second to none.

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Engage in work that spans a variety of defense technologies and harness the capabilities of a team known for its global scale and collaborative approach. Sigma Defense promotes a culture of diversity and inclusion, ensuring a wide range of perspectives and ideas drive the company’s innovations.

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Sigma Defense is committed to the professional development of its team members, providing extensive training, development, and certification support. The company offers vast opportunities for career advancement, allowing individuals to reach their full potential based on ambition and performance.

Explore Sigma Defense

Discover how Sigma Defense is leading projects that redefine industry standards and enhance operational efficiencies. From advanced surveillance systems to strategic cybersecurity defenses, Sigma Defense is at the forefront of protecting national and global interests.

The Sigma Defense Experience

Sigma Defense not only offers a compelling array of job opportunities but also ensures that its team members enjoy significant benefits and a supportive work environment. The company values a culture where innovation, leadership, and teamwork are at the heart of every project.

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