DevSecOps Engineer

Unissant•Chantilly, VA

28d•Onsite

About The Position

Unissant, Inc. delivers innovative capabilities to the agencies that keep our nation healthy and safe. We apply our domain expertise, data acumen, and technology know-how to achieve breakthrough results for our clients. Working collaboratively, we advance missions and careers through a focus on honesty, integrity, and dependability. We continuously look for talent, excited to join that effort. To learn more about our exciting organization, please visit us at www.unissant.com . Job Description: We are seeking a DevSecOps Engineer (TS/SCI with Polygraph Required ) to join our embedded team at the client site in Northern Virginia to support modernization initiatives. The ideal candidate excels in DevSecOps automation, is proficient in GitLab, Jira/Confluence, GitLab CI pipelines, Kubernetes, Harness, ArgoCD, Docker, Dynatrace/AppDynamics, Elasticsearch/Kibana, Splunk, Prometheus/Grafana and is committed to securing and streamlining software delivery and infrastructure. Qualified applicants will be subject to security validation / security clearance cross-over and must meet minimum qualifications for SCI access to classified information . This is a highly technical position; individuals will be screened by peers in a technical review of skills and experience. This position is contingent upon contract award. Essential Duties and Responsibilities: This is a client-facing position working in a hybrid low-side / high-side environment, subject to the requirements established by the client. Develop, implement, and maintain automated CI/CD pipelines using GitLab, Harness, enabling secure, efficient software delivery. In-depth knowledge of DevSecOps principles, continuous integration, security automation, and compliance enforcement in federal or secure environments. Proficiency with version control (Git), containerization (Docker, Kubernetes), and integrating security controls into delivery pipelines. Design and manage GitOps pipelines leveraging ArgoCD to ensure consistent, auditable, and declarative infrastructure and application deployments. Integrate security best practices into all phases of the DevOps lifecycle, performing automated security testing and compliance checks. Collaborate with software developers, data scientists, and system engineers to enforce DevSecOps standards, streamline deployment, and remediate vulnerabilities. Ensure the operational resiliency, scalability, and maintainability of cloud-based or hybrid environments supporting modernization goals. Monitor, troubleshoot, and optimize the performance, security, and health of infrastructure and deployment pipelines. Maintain documentation, provide training, and promote best practices among multidisciplinary teams. Design, build and maintain CI/CD, testing, and operations infrastructure. Develop custom tools and automation through programming and scripting. Pro-actively identify areas to drive automation across platforms. Develop innovative strategies, processes, automation, fail-over experience Design and setup of new large cloud clusters. Provide support to implement Change/Service Requests per application needs. Automate infrastructure provisioning and configuration management with Infrastructure as Code (IaC) solutions, primarily using Terraform. Work Experience and Job Skills: Required: 7-10 years of experience in related fields. Experience with Kubernetes, containerization and cloud computing. Hands-on expertise in: CI/CD automation using GitLab, Jenkins/Harness/ArgoCD Continuous Delivery (CD) and GitOps workflows deploying to Kubernetes. Prefer Infrastructure as Code (IaC): Terraform for cloud and hybrid infrastructure provisioning. Experience managing AWS services like EC2, ECS, ECR, EKS, NLB, ALB, RDS, S3, Kafka, Cloud monitoring services, VPC and other network layers. Experience with monitoring and log aggregating frameworks such as Dynatrace, Elasticsearch. Experience in migration of applications from on premises to cloud. Knowledge of OO programming and concepts (Java, C++, C#, Python). Experience in configuration management technologies such as Chef, Puppet or Ansible. Experience with AWS or another cloud PaaS provider. Solid understanding of configuration, deployment, management and maintenance of large cloud-hosted systems; including auto-scaling, monitoring, performance tuning, troubleshooting and disaster recovery. Proficiency with source control, continuous integration, and testing pipelines. Experience with Containers and orchestration services like Kubernetes, Docker etc. Good understanding of cloud security and best practices.

Requirements

7-10 years of experience in related fields.
Experience with Kubernetes, containerization and cloud computing.
Hands-on expertise in: CI/CD automation using GitLab, Jenkins/Harness/ArgoCD Continuous Delivery (CD) and GitOps workflows deploying to Kubernetes.
Prefer Infrastructure as Code (IaC): Terraform for cloud and hybrid infrastructure provisioning.
Experience managing AWS services like EC2, ECS, ECR, EKS, NLB, ALB, RDS, S3, Kafka, Cloud monitoring services, VPC and other network layers.
Experience with monitoring and log aggregating frameworks such as Dynatrace, Elasticsearch.
Experience in migration of applications from on premises to cloud.
Knowledge of OO programming and concepts (Java, C++, C#, Python).
Experience in configuration management technologies such as Chef, Puppet or Ansible.
Experience with AWS or another cloud PaaS provider.
Solid understanding of configuration, deployment, management and maintenance of large cloud-hosted systems; including auto-scaling, monitoring, performance tuning, troubleshooting and disaster recovery.
Proficiency with source control, continuous integration, and testing pipelines.
Experience with Containers and orchestration services like Kubernetes, Docker etc.
Good understanding of cloud security and best practices.
Active TS/SCI w/ Polygraph required.
Bachelor's Degree in Computer Science or related field required.

Nice To Haves

Prior experience supporting federal government agencies.
Familiarity with system modernization, supply chain risk analysis, or related domains.
Knowledge of common cloud platforms (AWS, Azure, GCP), Helm, and automated monitoring frameworks.
Master's degree or PhD in AI, Machine Learning, Computer Science, or related field strongly preferred.
AWS or DevOps/ DevSecOps certifications preferred.
Solid ability to interface, inspire and motivate at various levels of the organization.
Ability to convey technical information to non-technical individuals.
Demonstrated experience communicating effectively across internal and external organizations.
Excellent written and oral communication skills.

Responsibilities

Develop, implement, and maintain automated CI/CD pipelines using GitLab, Harness, enabling secure, efficient software delivery.
Design and manage GitOps pipelines leveraging ArgoCD to ensure consistent, auditable, and declarative infrastructure and application deployments.
Integrate security best practices into all phases of the DevOps lifecycle, performing automated security testing and compliance checks.
Collaborate with software developers, data scientists, and system engineers to enforce DevSecOps standards, streamline deployment, and remediate vulnerabilities.
Ensure the operational resiliency, scalability, and maintainability of cloud-based or hybrid environments supporting modernization goals.
Monitor, troubleshoot, and optimize the performance, security, and health of infrastructure and deployment pipelines.
Maintain documentation, provide training, and promote best practices among multidisciplinary teams.
Design, build and maintain CI/CD, testing, and operations infrastructure.
Develop custom tools and automation through programming and scripting.
Pro-actively identify areas to drive automation across platforms.
Develop innovative strategies, processes, automation, fail-over experience Design and setup of new large cloud clusters.
Provide support to implement Change/Service Requests per application needs.
Automate infrastructure provisioning and configuration management with Infrastructure as Code (IaC) solutions, primarily using Terraform.