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Threat Detection Analyst (Japanese Speaking)

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Remote from
Japan
Salary
Undisclosed
Department
Cybersecurity
Employment
Full Time
Experience
Open level
Published
Apply before
28 Oct 2026
Listing views
17
Application actions
2
Application toolkit

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AI Summary

The role, at a glance.

Fastly is seeking a Japanese-speaking Threat Detection Analyst to support its Customer Security Operations Center and protect customers from Internet-scale application-layer threats. The role monitors and analyzes security activity, investigates account takeover and bot attacks, supports WAF administration, and handles escalated application-security cases. It requires prior SOC experience, cloud and web-server knowledge, scripting capability, system administration skills, and strong customer-facing troubleshooting. The analyst will work a Friday–Tuesday schedule from 0000–0800 UTC (9am–6pm AEST) and operate with meaningful independence while collaborating across security, operations, and customer teams.

Role DNA

A quick view of the complexity, pace, ownership and collaboration implied by the job description.

Job Complexity

4/5
EasyHard

Pace & Pressure

4/5
RelaxedFast-paced

Autonomy Level

4/5
GuidedFull ownership

Communication Load

5/5
IndependentCollaborative
AI insightThis is a technically demanding SOC role involving application-security investigations, cloud environments, WAF operations, and customer escalations. The fixed 24/7 coverage schedule and Internet-scale threat environment require rapid judgment, sound prioritization, and clear communication under pressure.

Salary analysis

Estimated compensation compared with the broader US market for similar roles.

Estimated job medianMarket rate
$105,000
US market range$85k–$130k
AI insightNo actual salary, pay range, or other role compensation was disclosed in the posting. The figures are estimated annual USD base-salary benchmarks for a US-market threat detection/SOC analyst with application-security, cloud, and customer-facing responsibilities; actual compensation in Tokyo may differ materially.

Core skills

Skills and capabilities most closely associated with this opportunity.

Sample interview questions
How would you investigate a suspected account-takeover attack affecting a customer’s web application?

I would first validate the alert and scope the activity by reviewing authentication logs, IP reputation, request patterns, user-agent changes, geolocation anomalies, failed-login rates, and successful sessions. I would identify indicators such as credential stuffing, password spraying, session abuse, or automation, then implement or recommend mitigations through WAF rules, rate limiting, bot controls, and customer communication. Finally, I would document findings, monitor for recurrence, and tune detections to reduce future exposure.

What information would you review when tuning a WAF rule that is generating false positives?

I would inspect matched requests, rule IDs, request paths, parameters, methods, response outcomes, and affected user or business workflows. I would determine whether the traffic is legitimate, assess the risk of an exception, and prefer narrowly scoped exclusions or rule adjustments over broad disabling. After deploying a controlled change, I would validate the result with monitoring and document the rationale for future review.

Describe how you would troubleshoot a customer issue involving an agent installed on a Linux system.

I would confirm the symptom, deployment configuration, agent version, service status, permissions, network connectivity, DNS and proxy settings, logs, and recent host or application changes. I would reproduce or isolate the issue where possible, compare the host against a known-good configuration, and use shell tools to inspect processes, sockets, files, and system events. I would provide the customer with clear next steps and escalate with collected evidence if the issue required engineering involvement.

How do you prioritize multiple simultaneous security alerts in a 24/7 SOC environment?

I prioritize based on potential customer impact, confidence of malicious activity, asset criticality, exploitability, scope, and whether the event is ongoing. Active attacks against critical production services, confirmed account compromise, and high-volume automated abuse receive immediate attention. I keep stakeholders informed, record decisions in the case timeline, and ensure lower-priority alerts are triaged or handed over safely.

How would you explain a complex application-security incident to a non-technical customer stakeholder?

I would lead with the business impact, what was observed, what Fastly has done, and the customer actions that are needed. I would avoid unnecessary jargon while using simple examples to explain the threat and its risk, then provide a concise technical appendix for their engineering team. I would confirm understanding, set expectations for follow-up, and communicate any remaining uncertainty transparently.

This analysis is generated from the job description. Salary estimates, role characteristics and sample answers are guidance, not employer-provided facts.
Opportunity details

About this role.

Fastly helps people stay better connected with the things they love. Fastly’s edge cloud platform enables customers to create great digital experiences quickly, securely, and reliably by processing, serving, and securing our customers’ applications as close to their end-users as possible — at the edge of the Internet. The platform is designed to take advantage of the modern internet, to be programmable, and to support agile software development. Fastly’s customers include many of the world’s most prominent companies, including GitHub, Yelp, Paramount, and JetBlue.

We’re building a more trustworthy Internet. Come join us.

Threat Detection Analyst – APAC (Japanese Speaking)

Leveraging our growing security product suite, the Threat Detection Analyst role contributes real world security insights to Fastly and our customers as we address Internet-scale threats. Cloud security solutions enable our customers to benefit from extra visibility across the world and expertise from a central team.

The Fastly Customer Security Operations Center team at Fastly focuses on operational support of Fastly’s security products and services. The Threat Detection Analyst role within this team focuses on delivering outstanding security services to our customers, specifically as it pertains to integrating and supporting agent software installed on customer systems. The team works with the security, operations and customer organizations internally to deliver support solutions for security threats faced on the Internet today.

As a 24 x 7 team, SOC analysts are expected to work Friday – Tuesday, with the daily shift being 0000 – 0800 UTC – (9am – 6pm AEST)

What You’ll Do

This role within the Fastly Customer Security Operations Center (CSOC) will be responsible for monitoring and analyzing customer activity, with added emphasis on security functions, like identifying account-takeover or Bot Attacks and WAF administration. Much of the focus will be on security and attacks around the application layer working with different web technologies. You will have the opportunity to work on some of the world’s most scalable distributed systems that handle around 10 million requests per second, as well as the world-class engineers who developed these systems.

In this position, security engineers will be responsible for the following duties:

  • Be an expert in ensuring security for customers, providing an outstanding response to security issues.
  • Provide deep application-security experience on escalated cases from customers & automated systems.
  • Carry out continuous-improvement work & research to drive our customer security products & operations to be the best they can be.
  • Contribute to the processes and policies that scale our organization as we grow
  • Create & review reporting to customers on security services
  • Create & manage security content for customer environments

What We’re Looking For

  • Prior Experience working in a SOC Environment
  • Experience with some or all the following foundational technologies: SaaS/Cloud or hybrid cloud deployments; Apache/NGINX/IIS or other web server platforms and associated Application server technologies and frameworks
  • Scripting ability with any of the following: Python, Java, Go, Rust, PHP, Unix/Linux Shell, C#, or other common Web languages
  • Strong infosec background with strong knowledge & practical skills in Application Security.
  • Experience in an IT or security technical support, operations, or research role
  • Unix/Linux or Windows System Administration
  • Ability to work with limited supervision but be a good mentor on security knowledge to the greater team
  • Fluent spoken & written English required, tailoring depth to be a good fit for varying audiences
  • Ability and experience in troubleshooting software products
  • Focussed on delivering exceptional customer experiences.

Work Hours:

  • This position will require you to be available during core business hours.

Work Location(s) & Travel Requirements

This position is a remote position based out of (locality), with the possibility of becoming a hybrid position as Fastly expands its presence in the region.

This position will require travel to the US and Internationally, as required by your role or requested by your manager.

Benefits:

We care about you. Fastly works hard to create a positive environment for our employees, and we think your life outside of work is important too. We support our teams with great benefits that start on the first day of your employment with Fastly. Curious about our offerings?

We offer a comprehensive benefits package designed to meet your needs. Our offerings may vary depending on the country where you work and are subject to change.

Why Fastly?

  • We have a huge impact. Fastly is a fast growing company in a highly dynamic sector. Not only do our customers have a tremendous user base, but we also support a growing number of open source projects and initiatives. Outside of code, employees are encouraged to share causes close to their heart with others, so we can help lend a supportive hand.
  • We care about you. Fastly works hard to create a positive environment for our employees, and we think your life outside of work is important too.
  • We value diversity. Growing and maintaining our inclusive and diverse team matters to us. We are committed to being a company where our employees feel comfortable bringing their authentic selves to work and have the ability to be successful — every day.
  • We are passionate. Fastly is chock full of diverse and passionate people. We’re not ‘one size fits all’. Fastly employs authors, pilots, skiers, parents (of humans and animals), makeup geeks, coffee connoisseurs, and more. We love employees for who they are and what they are passionate about.

We’re always looking for humble, sharp, and creative folks to join the Fastly team.

If you think you might be a fit please apply, we would love to hear from you.

Why Fastly?

  • We have a huge impact. Fastly is a small company with a big reach. Not only do our customers have a tremendous user base, but we also support a growing number of open source projects and initiatives. Outside of code, employees are encouraged to share causes close to their heart with others so we can help lend a supportive hand.

  • We value diversity. Growing and maintaining our inclusive and diverse team matters to us. We are committed to being a company where our employees feel comfortable bringing their authentic selves to work and have the ability to be successful — every day.

  • We are passionate. Fastly is chock full of passionate people and we’re not ‘one size fits all’. Fastly employs authors, pilots, skiers, parents (of humans and animals), makeup geeks, coffee connoisseurs, and more. We love employees for who they are and what they are passionate about.

We’re always looking for humble, sharp, and creative folks to join the Fastly team. If you think you might be a fit please apply! A fully completed application and resume or CV are required when applying.

All job applications must be submitted through our official careers site at www.fastly.com/about/careers. We will never request sensitive information, such as your Social Security number, bank account or credit card information during the application process. All official communication will come from an @fastly.com or @recruiting.fastly.com email address.

Fastly is committed to ensuring equal employment opportunity and to providing employees with a safe and welcoming work environment free of discrimination and harassment. Our employment decisions are based on business needs, job requirements and individual qualifications. All qualified applicants will receive consideration for employment without regard to age, ancestry, color, family or medical care leave, gender identity or expression, genetic information, marital status, medical condition, national origin, family or parental status, physical or mental disability, political affiliation, protected veteran status, race, religion, sex (including pregnancy), sexual orientation, or any other characteristic protected by applicable laws, regulations and ordinances.

Consistent with the Americans with Disabilities Act (ADA) and federal or state disability laws, Fastly will provide reasonable accommodations for applicants and employees with disabilities. If reasonable accommodation is needed to participate in the job application or interview process, to perform essential job functions, and/or to receive other benefits and privileges of employment, please contact your Recruiter, or the Fastly Employee Relations team at candidateaccommodations@fastly.com or 501-287-4901.

Fastly collects and processes personal data submitted by job applicants in accordance with our Privacy Policy. Please see our privacy notice for job applicants.

Apply now >

This job listing has been manually reviewed by the Jobicy Trust & Safety Team for compliance with our posting guidelines, including verification of the company's legitimacy, accuracy of job details, clarity of remote work policy, and absence of misleading or fraudulent content.

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