IT Systems & ERP Support Specialist

Subinitial•El Cajon, CA

2d•Onsite

About The Position

Subinitial is seeking a versatile IT professional to serve as the technology interface for its team. The role owns infrastructure connecting four physical sites, supports end-user computing across the organization, and acts as the primary administrator and trainer for the in-house ERP system. It combines traditional IT work—including workstation setup, networking, printers, and VPNs—with application support, user training, and communication between staff and the software development team. The position supports Subinitial, which creates automated test solutions for aerospace and advanced manufacturing teams. The role is based in El Cajon, California, and is in-office, Monday through Friday, from 7:30 AM to 4:30 PM. Travel between the four sites may be required. Extended hours may be required.

Requirements

Hands-on experience setting up, administering, and troubleshooting Windows and Mac workstations.
Working knowledge of networking fundamentals, including routers, switches, firewalls, Wi-Fi, subnetting, VLANs, DNS, and DHCP.
Experience configuring and supporting VPNs.
Ability to read and reason about software not written by you, including databases, APIs, logs, and scripts.
Ability to write clear technical documentation and communicate effectively with non-technical colleagues.
Strong self-direction and ability to figure out unfamiliar systems without a formal training program.
Adaptability and comfort with changing tools and processes.
Willingness to travel between the four sites as needed.
Must be a U.S. citizen, lawful permanent resident, protected individual, or other U.S. person per 22 CFR § 120.62, due to ITAR and/or CUI compliance.

Nice To Haves

Experience with an ERP, MRP, or other business-critical line-of-business application.
Scripting or light development experience; Python is preferred and SQL is a plus.
Familiarity with AI-assisted development and support workflows.

Responsibilities

Set up, configure, and maintain workstations, laptops, printers, scanners, and peripherals.
Manage user accounts, permissions, and staff onboarding and offboarding.
Administer and troubleshoot networking equipment and inter-site connectivity across four physical sites.
Configure and support VPN access for remote and traveling staff.
Maintain backups, patching, security, and general system hygiene.
Document the IT environment and procedures to ensure continuity.
Develop deep working knowledge of the in-house ERP system, including its data model, workflows, and interfaces.
Provide first-line ERP support and distinguish user error from software defects.
Communicate frequent ERP system changes to staff.
Perform routine data maintenance, generate reports, and make light configuration changes.
Work with the development team on deployments, testing, and rollout of new features.
Train staff on ERP and general computer usage, adapting instruction to different skill levels.
Create and maintain plain-language documentation, quick-reference guides, and walkthroughs.
Run refresher training sessions when the system changes.
Gather user feedback, reproduce problems, and write clear, reproducible bug reports.
Translate business needs into well-scoped feature requests.
Maintain the issue tracker so the development team receives useful, actionable information.
Follow issues through to resolution and close the loop with reporters.
Perform other related duties as assigned.