Senior DevSecOps Platform Engineer
Job Summary Our client, a leading utilities organization, is seeking a Cloud Software Engineer III (Senior DevSecOps Platform Engineer) for a long-term contract opportunity. This role will support an enterprise DevSecOps platform team responsible for maintaining and enhancing the software development toolchain used by more than 300 developers across the organization. The ideal candidate will bring deep expertise in AWS, Terraform, Kubernetes, CI/CD platforms, and DevSecOps best practices while helping drive large-scale platform modernization, automation, and cloud migration initiatives. Contract DetailsLocation: St. Louis, MODuration: 52-Week ContractStart Date: September 2026Work Arrangement: Hybrid, 3 Days Onsite WeeklyConversion PotentialInterview Process: One-hour Teams interview with hiring teamCore ResponsibilitiesAdminister and support enterprise DevSecOps platforms, CI/CD systems, and development toolchainsTroubleshoot platform issues, production incidents, and developer support requestsManage and optimize GitHub Enterprise, CloudBees/Jenkins, Artifactory, Xray, SonarQube, and related technologiesMaintain Terraform-based infrastructure and Kubernetes workloads within AWS environmentsDevelop technical documentation, operational procedures, and support runbooksDrive vulnerability remediation, patch management, and platform reliability initiativesSupport engineering teams with CI/CD adoption, automation, and deployment best practicesPartner with security teams to ensure compliance with organizational security standardsAssist development teams in resolving platform, infrastructure, and deployment challengesSupport migration efforts from legacy and self-hosted platforms to SaaS solutionsBuild and maintain GitHub Actions workflows and Actions Runner Controller (ARC) environmentsConvert and modernize legacy Jenkins pipelines into GitHub Actions workflowsSupport repository migrations, governance activities, identity management, and SSO integrationsContribute to platform modernization, consolidation, and continuous improvement initiativesRequired Skills/Experience (Must-Haves)Bachelor's degree in Computer Science, Information Technology, Engineering, or a related field7+ years of experience in DevOps, DevSecOps, Site Reliability Engineering (SRE), or Platform EngineeringStrong experience with AWS services, including EKS, EC2, IAM, VPC, S3, Route 53, KMS, and EFSAdvanced Terraform experience in enterprise production environmentsExperience administering enterprise CI/CD platforms, including Jenkins and CloudBeesHands-on experience with GitHub Enterprise and GitHub Actions, including reusable workflows, runners, and secrets managementStrong Kubernetes administration and troubleshooting skillsExperience with Docker and containerized application deploymentsExperience supporting Artifactory, Xray, and SonarQube environmentsKnowledge of DevSecOps principles, software security practices, and automation frameworksExperience implementing security controls and scanning tools, including SAST, SCA, SBOM, and quality gatesStrong Linux administration and troubleshooting experienceProficiency in Python, Bash, and Groovy scriptingExperience with identity and access management technologies, including Azure AD, SAML, OIDC, SCIM, and RBACStrong understanding of networking concepts, including DNS, TCP/IP, routing, load balancing, VPNs, firewalls, and certificate managementPreferred Skills/Experience (Nice-to-Haves) Experience migrating from GitHub Enterprise Server to GitHub Enterprise CloudExperience transitioning Jenkins or CloudBees pipelines to GitHub ActionsActions Runner Controller (ARC) implementation experienceGitHub Enterprise Importer (GEI) experienceArtifactory, Xray, SonarQube, or Atlassian Cloud migration experienceAWS Certified DevOps Engineer Professional or Solutions Architect certificationExperience supporting large-scale enterprise modernization initiativesBackground working within regulated environments requiring formal governance and change management processesKey Competencies & BehaviorsStrong ownership and accountabilityExceptional troubleshooting and analytical skillsAbility to work independently with broad responsibilityExcellent documentation and knowledge-sharing habitsStrong collaboration and stakeholder management skillsSecurity-first mindsetContinuous improvement mentalityAbility to balance operational support with strategic initiativesStrong verbal and written communication skillsWork Environment???????Location: St. Louis, MOWork Arrangement: Hybrid, 3 Days Onsite Weekly???????Compensation & BenefitsPay Range: The approximate pay range for this position is between $47.00 and $68.00. Please note that the pay range provided is a good faith estimate. Final compensation may vary based on factors including but not limited to background, knowledge, skills, and location. We comply with local wage minimums.Medical, Dental, & Vision Insurance PlansEmployee-Owned Profit Sharing (ESOP)401K offeredAbout KellyMitchell At KellyMitchell, our culture is world class. We’re movers and shakers! We don’t mind a bit of friendly competition, and we reward hard work with unlimited potential for growth. This is an exciting opportunity to join a company known for innovative solutions and unsurpassed customer service. We're passionate about helping companies solve their biggest IT staffing & project solutions challenges. As an employee-owned, women-led organization serving Fortune 500 companies nationwide, we deliver expert service at a moment's notice. 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