jt
JT4, LLC is seeking a Senior System Administrator to provide engineering and technical support for U.S. Air Force, Space Force, and Navy test ranges. The role involves evaluating system specifications, configuring enterprise computer systems, and maintaining workstations and server systems. The position requires managing network performance, storage solutions, and integrating new technologies into the data center.
Headquarters
Toranomon Kamiyachotorasutotawa(14-, Tokio, Japan
Company Size
10001+ employees
Japan Tobacco (JT) is a leading global tobacco company that operates in over 70 countries and whose products are sold in more than 130 markets. Beyond its core cigarette business, JT develops emerging tobacco-related products and—until 2025—also operated a pharmaceutical business that it has recently transferred to Shionogi. The company emphasizes sustainable, long-term growth and positions itself as a responsible corporate citizen, providing comprehensive investor relations, integrated reporting, and sustainability disclosures. JT highlights its commitments to consumers, shareholders, employees and wider society in guiding corporate decision‑making.
Headquarters
San Francisco, CA
Company Size
201-500 employees
Founded
2018
Industry
Technology
Glassdoor Rating
4.2 / 5
Sarah Johnson
Chief Executive Officer
Michael Chen
Chief Technology Officer
Emily Williams
VP of Engineering
David Rodriguez
VP of Product
Jessica Thompson
Chief Financial Officer
Andrew Park
VP of Sales
View leadership team, funding history,
and employee contacts for jt.