Senior Network Engineer

The MIS team is responsible for the design, reliability, and security of the network infrastructure supporting 24/7 manufacturing operations, enterprise systems, and secure cross-site connectivity. We are seeking a Senior Network Engineer who will take technical ownership of AOI’s network and security stack and play a critical role in ensuring high availability, performance, and security across all environments.

This is a hands-on, infrastructure-focused role centered on the design, deployment, configuration, and ongoing administration of network and security systems. The successful candidate will work extensively with Cisco routers, switches, and firewalls, site-to-site and remote-access VPNs, and network monitoring and alerting platforms in a multi-site manufacturing environment.

Job Responsibilities

• Designs, configures, maintains, and coordinates the use of customer’s Local Area and Wide Area Networks over Site-to-Site VPN.

• Maximizes network performance by monitoring performance; troubleshooting network problems and outages; scheduling upgrades; collaborating with network architects on network optimization.

• Secures network system by establishing and enforcing policies; defining and monitoring access.

• Updates and maintains all documentation requested by management and will be tasked with improving such documentation as required.

• Accomplishes information systems and organization mission by completing related results as needed.

• Reports network operational status by gathering, prioritizing information; managing projects.

• Updates job knowledge by participating in educational opportunities; reading professional publications; maintaining personal networks; participating in professional organizations.

Candidates must be authorized to work in the United States. Visa sponsorship is not available for this position.

Required:

• Bachelor’s degree in Computer Science or related program

• 7+ years’ experience in Tracking Budget Expenses, Project Management, Network Design and Implementation, Network Troubleshooting, Network Hardware Configuration, Network Performance Tuning

• LAN Knowledge & VOIP Knowledge

• Knowledge of Cisco Routers, Switches, Firewalls - Software and Hardware Configurations

• Strong verbal and written communication skills for effective collaboration between team members

Preferred:

• Proficiency in Microsoft Suite for project documentation and reporting

• Bilingual in Mandarin is preferred

• CCNA Certification is a plus

Pulled from the full job description

• Health insurance
• 401(k) matching
• Paid time off
• Vision insurance
• Dental insurance, This position is full-time and based in Sugar Land, Texas. This location has a combination of office, warehouse, and cleanroom manufacturing work environments.

• Business Hours for this position are 9am to 6pm CT, Monday through Friday.

• This position may require occasional after-hours response for critical facility issues, site inspections, or executive events.

Why AOI? In addition to competitive salary, AOI offers:

• Flexible and competitive health (medical, dental, vision) plans offer the employee with the right options to meet individual and family needs

• Employer matching on 401(k) deferrals

• Generous PTO policy, with unused PTO payout at end of the year

Applied Optoelectronics, Inc. (AOI) is a leading developer and manufacturer of advanced optical and HFC networking products - the building blocks that power AI datacenters, CATV broadband, telecom, and fiber access networks around the world. Headquartered in Sugar Land, Texas, AOI is a vertically integrated company that designs and manufactures everything from semiconductor laser chips to finished optical transceivers, serving tier-one customers across cloud computing, broadband, and telecom. With R&D operations in Atlanta, GA and global manufacturing presence in Taiwan and China, AOI is publicly traded on the Nasdaq (AAOI) and is actively expanding its U.S.-based manufacturing operations in Sugar Land to meet accelerating demand in the AI datacenter market.