KDDI Research, Inc.
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Researcher Position in Cybersecurity and Network Security at KDDI Research, Inc. KDDI Research, Inc. in Japan
Degree Level
Postdoc
Field of study
Computer Science
Funding
Full-time permanent employee position at a private company. Annual income is approximately 4 million to 9 million yen, estimated at about 4.2 million to 8.5 million yen excluding commuting allowance and including various allowances and overtime pay for 40 hours per month. Salary increase, bonus, commuting allowance, retirement system, and social insurance are provided.
Deadline
Mar 31, 2027
Country
Japan
University
KDDI Research, Inc.

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About this position
KDDI Research, Inc. is recruiting a researcher / postdoc-equivalent permanent employee in cybersecurity at its site in Saitama Prefecture, Japan. The role focuses on detecting attack-related abnormal communications using network flow data, machine learning, and deep learning, with applications to network security.
Research themes include: detecting abnormal communications from malware-infected terminals, identifying communication between infected terminals and attack command-and-control (C&C) servers, building analysis environments, analyzing detection results, and implementing detection/analysis algorithms on cloud or on-premise servers.
Eligibility is broad: applicants may hold a bachelor's, master's, or doctoral degree in any field, but should have research and development experience in cybersecurity. Reading and writing English proficiency is desirable.
This is a full-time, no-fixed-term position with a probationary period. Salary is listed at roughly 4 million to 9 million yen annually (estimated 4.2 to 8.5 million yen including allowances and overtime assumptions), plus commuting allowance, bonus, salary increase system, retirement system, and social insurance. Online interviews are available for overseas or distant applicants.
Apply via the JREC-IN Portal web application by submitting an electronic resume with photo and a list of achievements. Applications are accepted from 2026-10-13 until 2027-03-31, or until the position is filled.
Funding details
Full-time permanent employee position at a private company. Annual income is approximately 4 million to 9 million yen, estimated at about 4.2 million to 8.5 million yen excluding commuting allowance and including various allowances and overtime pay for 40 hours per month. Salary increase, bonus, commuting allowance, retirement system, and social insurance are provided.
What's required
Applicants must hold a bachelor's, master's, or doctoral degree in any field. Candidates should have research and development experience in cybersecurity. Proficiency in reading and writing English is desirable.
How to apply
Prepare an electronic resume with photo and a list of achievements, then apply through the JREC-IN Portal web application. Online application is possible; email application is not possible. Applications are accepted until March 31, 2027 or until the position is filled.
More information can be found here
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