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Tier4 Group Logo Tier4 Group · IT - Software Development

Site Reliability Engineer Platform Engineer

United States, Reston · Job Posted March 25, 2026
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Job Description

Join a mission-driven, national financial services organization at the heart of the U.S. housing finance ecosystem. This is a mid-sized, highly regulated enterprise operating at market scale—supporting platforms and analytics that enable trillions of dollars in annual economic activity. You’ll work in a modern tech environment with strong engineering partners, clear business impact, and a mandate for reliability, security, and continuous improvement. Our client is hiring a hands-on SRE / Platform Engineer to operate, tune, and scale our OpenShift/Kubernetes platforms while bridging on-prem to Azure to power our analytics ecosystem. You’ll own reliability, automation, and observability across a hybrid estate—partnering closely with developers, data engineers, infrastructure operations, and security to deliver secure, performant platform services using modern DevSecOps practices.

Job Responsibility

  • Operate, tune, and optimize OpenShift/Kubernetes clusters (scheduling, ingress, upgrades, quotas, policies)
  • Stand up and/or refine observability (Datadog, Prometheus, Grafana)—dashboards, alerts, SLOs, runbooks
  • Map current hybrid topology and critical delivery pipelines
  • identify toil and prioritize automation (Terraform/Ansible)
  • Begin supporting Azure environments (compute, networking, storage, data services) used by analytics teams
  • Drive GitOps-first workflows
  • harden CI/CD with ArgoCD/Jenkins/GitHub Actions and policy-as-code guardrails
  • Implement or enhance platform services (Vault, Kafka/AMQ, ingress, service mesh) for dev and data teams
  • Lead incident response and postmortems
  • institutionalize RCA, blameless learning, and continuous improvement
  • Advance the hybrid service model—migrations, integrations, reliability/latency tuning, cost and performance optimization
  • Operate and optimize OpenShift/Kubernetes clusters, ingress (e.g., Nginx), and container networking/service mesh
  • Manage Azure services (compute, VNet, storage, data services) supporting analytics workloads
  • Build and maintain automated infrastructure with Terraform, Ansible, and GitOps workflows
  • Implement and evolve observability (Datadog, Prometheus, Grafana): metrics, traces, logs, alerting, SLOs, runbooks
  • Design, harden, and support delivery pipelines with ArgoCD/Jenkins/GitHub Actions
  • Provide platform tooling and enablement for application developers, data engineers, and operations teams
  • Ensure security and access management (HashiCorp Vault, secrets management, least privilege)
  • Lead incident response, coordinate cross-functional resolution, and drive corrective actions and platform improvements
  • Script or develop tools in Bash, Python, or Go to eliminate toil and improve developer experience

Requirements

  • 5+ years hands-on operating and managing Kubernetes and OpenShift clusters
  • Strong experience with Microsoft Azure (compute, networking, storage, and data services)
  • Proven skills in automation and Infrastructure-as-Code (Terraform, Ansible, GitOps)
  • Proficiency with observability tooling (Datadog, Prometheus, Grafana)
  • Scripting/coding ability in Bash, Python, or Go

Nice to have

  • Experience bridging on-prem and cloud in a hybrid service model (migration, integration, optimization)
  • Expertise with Kafka/AMQ, HashiCorp Vault, and ArgoCD/Jenkins/GitHub Actions
  • Background leading incident response and postmortems with strong RCA and continuous improvement practices
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