Release Train Engineer Azure Infrastructure and AKS

3Core Systems, Inc; Chicago (IL); Hybrid; USD 90,000 - 130,000; Full time

Job summary

3Core Systems, Inc. seeks a Release Train Engineer to lead Azure infrastructure and AKS deployments in a hybrid Chicago setting.

This hands-on role blends engineering with DevOps to deliver secure, scalable services across development, testing, and production environments. The engineer will build CI/CD pipelines, configure AKS clusters, and collaborate with architecture, security, and operations to ensure reliable releases for the PADS program.

Qualifications

• Bachelor’s degree required.
• 10+ years of Azure Infrastructure and AKS experience.
• Strong experience with Kubernetes, Docker and Helm.
• CI/CD pipeline engineering
• Infrastructure as Code & scripting experience
• Networking, security & monitoring
• Proficient with YAML-based pipelines
• Experience with Azure DevOps or GitHub Actions
• Experience with Terraform or Bicep
• Strong collaboration across engineering, security, and operations teams.

Responsibilities

• Execute production releases and validate service health post-deployment.
• Configure and operate Cosmos DB databases and related components.
• Build and maintain CI/CD pipelines to automate builds, tests, and deployments.
• Configure Kubernetes deployments, services, ingress, and probes.
• Implement secure API connectivity with DNS/TLS/load balancing.
• Enforce least-privilege access and secret management via Azure Key Vault.
• Integrate automated tests, container image scanning, and security checks into pipelines.
• Monitor, log, and alert using Azure Monitor and Application Insights.
• Troubleshoot deployments and resolve root causes with cross-functional teams.
• Maintain environment consistency and deployment documentation.

Skills

Azure

AKS

Kubernetes

Docker

PowerShell

Python

Bash

Terraform

YAML

ADO

Azure DevOps

GitHub Actions

Education

Bachelor’s Degree

Tools

Azure

AKS

Terraform

GitHub Actions

Cosmos DB

Job description

Release Train Engineer Azure Infrastructure and AKS

Chicago Heights, United States | Posted on 10/22/2026

Job Title: Release Train Engineer Azure Infrastructure and AKS

Job Location: Chicago, IL, 60603

Work Model: Hybrid

Work Model Details: 3 times a week is mandatory

Shift: M-F, 8am - 5pm

Employment Type: Temp to Hire

Must Have Skills/Attributes: ADO, Azure, BASH, Docker,Kubernetes, PowerShell, Python, Release Train Engineer (RTE) Certified,Terraform, YAML

Experience Desired

• Azure Infrastructure and AKS (10 yrs)
• Kubernetes, Docker and Helm (10 yrs)
• CI/CD Pipeline Engineering (10 yrs)
• Infrastructure as Code & Scripting (10 yrs)
• Networking, Security & Monitoring (10 yrs)

Required Minimum Education: Bachelor’s Degree

Job Description

RequiredEducation: Bachelor’s Degree

PreferredCertification

RequiredSkills

• Hands-on provisioning,configuring, and troubleshooting Azure infrastructure
• (Secondary) AKS, virtualnetworks, subnets, network security groups, storage accounts
• Deploying and supportingcontainerized API services on AKS
• (Secondary) AKS clusters: nodepools, scaling, upgrades, resource quotas, workload availability
• YAML-based CI/CD pipelines inAzure DevOps or GitHub Actions
• Automated testing, artifactmanagement, environment promotion, rollback
• Integrating automated tests,container image scanning, security checks, approval gates
• Scripting: PowerShell, Bash, orPython
• Infrastructure as Code
• Terraform or Bicep
• Git-based version control
• (Secondary) Terraform modules,version-controlled configurations
• Linux, HTTP/REST APIs, DNS, TLS,ingress, load balancing
• Access controls and secretsmanagement (Azure Key Vault)
• Least-privilege access, managedidentities, workload identity, RBAC
• Production monitoring, incidenttroubleshooting, controlled releases
• Dashboards and actionable alerts
• Root-cause resolution acrossapplication and infrastructure layers
• Tested rollback procedures andrelease runbooks
• Cosmos DB: container creation,index maintenance, RU allocation, data copying
• Agile/SAFe: value streamimprovement, DevOps, Release on Demand, Continuous Delivery Pipeline
• Partnering with Agile PMO anddelivery leadership (reporting, governance)

Preferred (not required)

• Enterprise API/integration/dataplatform experience in financial services or regulated environments

RequiredSoft Skills

• Clear communication acrossengineering, security, and operations teams
• Ownership of technical issuesthrough resolution
• Collaboration with developers,architects, security, platform teams

TheRelease Train Engineer will provision and manage Azure infrastructure, builddeployment automation, and deploy and support API services on Azure KubernetesService (AKS). This is a hands-on engineering role requiring practicalexperience with Azure, Kubernetes, infrastructure as code, and CI/CD pipelines.The engineer will work with development, architecture, security, and operationsteams to deliver secure, reliable, and repeatable deployments acrossdevelopment, test, and production environments, and will communicate releasestatus and progress to business and technical stakeholders in the PADS program.

KeyResponsibilities

• Execute production releases,validate service health after deployment, and maintain tested rollbackprocedures and release runbooks.
• Configure and operate Cosmos DBdatabases, including container creation, index maintenance, RU allocation,and data copying.
• Build and maintain CI/CDpipelines (Azure DevOps or GitHub Actions) to automate builds, testing,image publishing, and deployments across environments.
• Configure Kubernetes deployments,services, ingress, health probes, resource requests/limits, andenvironment-specific application settings.
• Configure secure APIconnectivity: DNS, TLS certificates, load balancing, private endpoints,and Azure API Management integration where required.
• Implement least-privilege access,managed identities, workload identity, RBAC, and secure secrets managementvia Azure Key Vault.
• Integrate automated tests,container image scanning, security checks, and approval gates intodeployment pipelines.
• Implement monitoring, logging,dashboards, and actionable alerts using Azure Monitor, Log Analytics, andApplication Insights.
• Troubleshoot failed deployments,pod/container issues, networking, authentication, and API performanceproblems; resolve root causes with development and operations teams.
• Maintain environment consistency,deployment documentation, and change records per enterprise security andchange-management requirements.
• Partner with developers,architects, security, and platform teams to resolve infrastructuredependencies and prepare API services for production.
• Improve deployment reliability,recovery time, resource utilization, and Azure costs through automation,capacity tuning, and operational improvements.
• Encourage collaboration betweenteams, Product Management, Product Owners, System/Solution Architects,engineering, security, and operations.
• Improve value flow through valuestreams by strengthening DevOps, Release on Demand, and ContinuousDelivery Pipeline practices.
• Partner with the Agile ProgramManagement Office and delivery leadership to support program execution,operational excellence, reporting, and governance.
• Develop and maintaininfrastructure as code using Terraform (version-controlled configs,reusable modules, controlled environment changes).
• Configure and operate AKSclusters: node pools, scaling, upgrades, resource quotas, workloadavailability.
• Containerize API services usingDocker; deploy to AKS via Kubernetes manifests and Helm charts.
• Automate routineinfrastructure/operational tasks using Azure CLI, PowerShell, or Bash toreduce manual effort and configuration drift