This description is a summary of our understanding of the job description. Click on 'Apply' button to find out more. Role Description TISTA Science and Technology is seeking a Senior System Administrator to join our growing team. At TISTA, you’ll do meaningful, mission-driven work that improves lives alongside teammates you trust and leaders who are transparent and supportive. We invest in your learning and internal mobility so you can build a career that keeps advancing. - Manages the full lifecycle of RHEL servers, focusing on installation, configuration, maintenance, and security in a Web Environment. - Install, configure, and maintain RHEL servers and virtual platforms (Cloud-AWS, Azure). - Develop scripts (Bash, Python) or use Ansible to automate routine tasks, such as user management, software updates, and patching. - Implement and manage security protocols, including SELinux, firewalls, access control lists (ACLs), and user/group permissions. - Monitor system performance, resource utilization, and logs to ensure high availability, stability, and performance. - Use Red Hat Satellite to manage repositories, content views, and software updates across the enterprise. - Configure logical volumes, file systems, and manage backups to prevent data loss. - Resolve complex server-level issues, conduct root cause analysis, and provide technical assistance. Qualifications - Expertise in RHEL 7/8/9 environments. - Apache and Drupal Support. - Proficiency in command-line tools and shell scripting (Bash). - Strong understanding of networking (TCP/IP, firewalls). - Familiarity with automation tools (Ansible) and container technology (Podman/Docker). - Bachelor’s degree in computer science, electronics engineering or related technical discipline and 5+ years’ work experience. - Eight (8) years of additional relevant experience may be substituted for education (13 years total). Requirements - The ability to pass a Tier 4/HIGH Background Investigation. - Location: Remote, USA. - Monday - Friday (8:00 AM - 4:30 PM EST). Benefits - Above Industry Healthcare Benefits. - Remote Working Options. - Paid Time Off. - Training/Certification opportunities. - Healthcare Savings Account & Flexible Savings Account. - Paid Life Insurance. - Short-term & Long-term Disability. - 401K Match. - Professional development reimbursement. - Employee Assistance Program. - Paid Holidays. - Military Leave. - And much more! Pay Range The pay for this position ranges from $52,730 to $72,500. The actual salary offer will carefully consider a wide range of factors, including your skills, qualifications, experience, and location. Also, certain positions are eligible for additional forms of compensation, such as bonuses.

• Install, configure, and maintain servers, operating systems, and software • Monitor system performance, troubleshoot issues, and resolve technical problems • Manage user accounts, permissions, and access controls • Maintain network infrastructure, including firewalls, switches, and VPNs • Perform regular backups, recovery, and disaster recovery tests • Implement security measures, patch updates, and antivirus solutions • Monitor logs, alerts, and system health; respond to incidents promptly • Support end-users with system-related issues • Maintain documentation of systems, configurations, and processes • Collaborate with the Australian client and internal IT team, providing timely updates and clear communication

• establish, maintain, and continuously improve SAP Basis standards • manage SAP system architecture, configuration, upgrades, redesign, and documentation • act as a liaison between IT Operations and Product Development teams • maintain current knowledge of SAP technologies, cloud platforms, and industry best practices • hands-on experience with daily SAP operations • experience managing SAP security and infrastructure components • proficiency working with enterprise support and ITSM tools • working knowledge of SAP cloud technologies and lifecycle management landscapes

Company Description For More Open Positions Visit us at: http://recruiting.woongjininc.com/ Our Mission WOONGJIN, Inc. is a rapidly growing team who provides a range of unique, exceptional, and enhanced services to our clients. We have a strong moral code that includes the service of goodness without expectations of reward. We are motivated by the sense of responsibility and servant leadership. Benefits - Medical Insurance - Vision Insurance - Dental Insurance - 401(k) - Paid Sick hours Job Description - Administer and support the OutSystems platform – deployments, performance tuning, monitoring, and troubleshooting. - Manage Windows Server environments, including Active Directory, DNS, DHCP, and file systems. - Perform patch management, system updates, and vulnerability remediation. - Monitor system and application health, ensuring performance and uptime SLAs. - Maintain system documentation and operational procedures for OutSystems and Windows platforms. - Collaborate with DevOps and infrastructure teams to support upgrades and configuration changes. - Automate operational tasks using PowerShell or other scripting tools. - Participate in an on-call support rotation for production support activities. * Remote available Qualifications - 3+ years of experience administering OutSystems. - Strong knowledge of Windows Server administration. - Experience with patching, event log analysis, and system health monitoring. - Familiarity with CI/CD pipelines for low-code platforms. - Basic knowledge of cloud infrastructure (Azure/AWS). - Bilingual (English/Korean) Nice to Have: - OutSystems certifications - Microsoft Certified: Windows Server or Azure Administrator - Experience with IIS, SQL Server, or load balancing for web apps Additional Information All your information will be kept confidential according to EEO guidelines. *** NO C2C ***