IT Infrastructure and Operations Engineer II - Unix/Linux System Engineer

Under general supervision, is responsible for building, testing, implementing, and supporting IT infrastructure in the cloud and on premise, while executing strategy set by Architects. Assignments are complex and may have system-wide impact on a platform and/or integrate across the enterprise. Infrastructure typically spans the server platforms, storage systems, middleware infrastructure, enterprise resource planning, and client technologies. May exercise technical supervision over assigned staff.

Work Location
515 S. Frio Street, San Antonio, TX (78205)

Work Schedule
7:45 a.m. - 4:30 p.m., Monday - Friday

• Designs the internal and external interface compatibility of platforms and associated subsystems, including Oracle/VMWare hosted virtual environments and Oracle SPARC server infrastructures, ensuring seamless integration, high availability, and secure operations across Unix/Linux systems (Oracle Solaris, RHEL, Ubuntu, etc.).
• Performs scripting using Bash, Ksh, Perl, Python, or combinations of automation tools to streamline system administration tasks, support virtual environment operations, and automate routine processes such as monitoring, patching, auditing, and configuration management.
• Develops, implements, and complies with Service Level Agreements and Operational Level Agreements, ensuring system reliability, performance, and adherence to organizational standards across physical and virtual Unix/Linux environments.
• Documents new or modified infrastructure solutions, rest    activities/results, installation procedures, system configurations, error handling processes, upgrade paths, migration steps (hot/cold), snapshots, and operational workflows to maintain accurate and comprehensive technical records.
• Collaborates with developers and other IT teams to ensure proper system integration, functionality, and operational readiness across virtualized and physical server environments, including Oracle SPARC hardware and Oracle virtualization platforms.
• May use technology to implement automation and orchestration, including shell scripting, configuration management, and performance tuning tools to optimize virtual environments and streamline system operations.
• Tracks, monitors, and analyzes key metrics and performance indicators for Unix/Linux systems and virtual environments, tuning systems for optimal performance and proactively identifying and resolving hardware or software issues.
• Performs related duties and fulfills responsibilities as required. 

• Bachelor's Degree from an accredited college or university.
• Four (4) years of work experience in Systems Administration, Networking, DBA, DBMS design and support, and/or PC Support roles.
• Applicants for this position must pass a Criminal Justice Information Systems (CJIS) fingerprint-based background check and maintain CJIS eligibility. Due to CJIS requirements related to system access, the following will result in being disqualified for this position: Felony Convictions, Felony Deferred Adjudication, Class A & B Misdemeanor Deferred Adjudication, Class B Misdemeanor Convictions, an Open Arrest for Any Criminal Offense (Felony or Misdemeanor), and Family Violence Convictions.

• Four (4) years of experience administering UNIX/Linux environments (Oracle Solaris, RHEL, Ubuntu) with a focus on system performance, security, and high availability.
• Broad technical background across operating systems, virtualization, cloud infrastructure, automation, and middleware, with hands-on expertise in Solaris SPARC, x86 hardware, VMware, and Oracle technologies.
• Strong understanding of networking and infrastructure concepts including VLANs, VPNs, routing, IPv4/IPv6, wired/wireless architectures, load balancing, and disaster recovery.
• Skilled in server configuration, automation tools, storage systems, filesystems, and troubleshooting complex UNIX/Linux environments.
• Excellent analytical, communication, and interpersonal skills with the ability to quickly learn new technologies and adapt to evolving priorities.
• Valid Driver's License.

• Unless otherwise stated, applicants are permitted to substitute two years of related full-time experience for one year of higher education or one year of related higher education for two years of experience in order to meet the minimum requirements of the job. One year of full-time experience is defined as 30 or more hours worked per week for 12 months. One year of higher education is defined as 30 credit hours completed at an accredited college or university.
• Applicants selected for employment with the City of San Antonio in this position must receive satisfactory results from pre-employment drug testing and background checks.  If required for the position, a physical, motor vehicle record evaluation, and additional background checks may be conducted.
• Please be advised that if selected for this position, information regarding employment history as it relates to the qualifications of the position will be needed for employment verification. Applicants claiming military service to meet the experience requirement for this position may attach a DD214 to the application.
• If selected for this position, official transcripts, diplomas, certifications, and licenses must be submitted at the time of processing.  Unofficial transcripts and copies of other relevant documents may be attached to the application for consideration in advance.

• Knowledge of test harnessing, test simulation, testing platforms, and testing techniques.
• Knowledge of the practical application of role specific engineering science and technology including applying principles, techniques, procedures, automation tools, and equipment to the design and production of various goods and services.
• Knowledge of a broad range of hardware and software products.
• Skill in working in an agile environment.
• Skill in identifying and solve system problems.
• Skill in coordinating work projects.
• Ability to leverage modern architectural components to design modular, flexible solutions.
• Ability to develop and deliver requirements, concepts of operations, use cases, demonstrations, and presentations to both one-to-one and in small groups.
• Ability to create both technical and non-technical end-user documentation.
• Ability to perform all the essential functions of the position, with or without accommodations.
• Ability to work primarily in an office environment.