Systems Admin III

Job Title: Senior Middleware & Systems Administrator

Role Overview
We are seeking a highly skilled Senior Middleware Systems Administrator (Level III) to manage, optimize, and secure our enterprise-level application and web server environments. In this role, you will act as a key technical resource responsible for application deployments, end-to-end infrastructure validation, and robust configuration management. This position heavily prioritizes infrastructure-as-code and automation; you will design and maintain scripting workflows to streamline server operations, manage digital certificates, and support cloud migration initiatives. The ideal candidate is a disciplined systems professional who understands enterprise Java environments and thrives in a fast-paced environment.

Key Responsibilities
Middleware Administration & Deployment
• Application Serving: Install, configure, and maintain enterprise Java-based Application Servers (e.g., WebSphere) and high-performance Web Servers.
• Deployment Support: Facilitate smooth application deployments, providing technical infrastructure and testing support to development and QA teams.
• Security & Compliance: Manage corporate SSL/TLS certificate lifecycles, ensuring secure transmission protocols across all web and application tiers.
• Environment Governance: Own application server configuration management, ensuring consistency across Development, QA, and Production environments.
Infrastructure Automation & Cloud Integration
• Scripting & Automation: Design, develop, and implement advanced automation scripts using Python, Jython, and Shell to eliminate manual server tasks.
• Configuration Management: Leverage Ansible to automate server provisioning, application patching, and deployment pipelines.
• Cloud Operations: Support hybrid infrastructure strategies by aligning core middleware systems with AWS cloud architecture and best practices.

Operations & Support
• On-Call Reliability: Participate in an engineering on-call rotation to provide tier-3 troubleshooting and incident resolution.
• Maintenance Windows: Execute complex system upgrades, patching, and testing during scheduled off-hours and weekends as required by business needs.

Qualifications & Requirements
• Experience: Senior-level experience in systems administration with a distinct expertise in enterprise middleware management.
• Technical Mastery:
oDeep, foundational understanding of Java runtime environments and application architecture.
oHighly proficient in Unix operating system administration, performance monitoring, and command-line execution.
oProven experience administering large-scale application servers (such as IBM WebSphere).
• Automation Prowess:
oExpert-level proficiency in scripting with Python/Jython and Shell.
oHands-on knowledge of Ansible playbook development for infrastructure automation.
• Cloud Competency: Working knowledge of AWS cloud concepts, networking, and compute instances.
• Attributes:
oStrong communication and collaborative problem-solving skills.
oExceptional attention to detail regarding change control, system tracking, and data security.

Equal Opportunity Employer / Disabled / Protected Veterans

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For temporary assignments lasting 13 weeks or longer, AllSTEM Connections is pleased to offer major medical, dental, vision, 401k and any statutory sick pay where required.

We are committed to working with and providing reasonable accommodations to individuals with disabilities. If you need a reasonable accommodation for any part of the employment process, please contact your staffing representative who will reach out to our HR team.

AllSTEM Connections participates in the E-Verify program in certain locations as required by law. Learn more about the E-Verify program.

We also consider for employment qualified applicants regardless of criminal histories, consistent with legal requirements, including, if applicable, the City of Los Angeles' Fair Chance Initiative for Hiring Ordinance. Pursuant to applicable state and municipal Fair Chance Laws and Ordinances, we will consider for employment-qualified applicants with arrest and conviction records, including, if applicable, the San Francisco Fair Chance Ordinance. For Los Angeles, CA applicants: Qualified applications with arrest or conviction records will be considered for employment in accordance with the Los Angeles County Fair Chance Ordinance for Employers and the California Fair Chance Act.

Additional Skills

(none specified)


AllSTEM Representative Contact Info

Account Executive:


Nichols


Branch Phone:


View phone number on click.appcast.io


Location:


Ontario, CA