We are helping our client, a fast-growing cybersecurity SaaS provider founded in 2012, whose AI-powered, operation-centric platform combines endpoint protection, detection, and response capabilities (EDR, XDR), to detect, halt, and investigate cyber threats with advanced behavioral analytics.
The company operates globally - including in Tokyo - and is known for its real-time security intelligence and innovative approach to combating sophisticated cyberattacks.
Work mode:
hybrid, 2 office days, Tokyo
About the Role
The company is expanding its engineering team in Japan and looking for a fullstack engineer who enjoys working on high-performance systems, large-scale data pipelines, and modern security technologies.
The role combines backend development (Rust, Go, Java, C++) with frontend work, plus deep involvement in cloud-native architectures, distributed systems, and real-time data processing.
You'll work across the stack to build secure, high-throughput features, help integrate AI-driven analytics, and shape data processing flows for millions of events per second.
ResponsibilitiesBuild and improve backend services and the user-facing parts of the product
Develop reliable data pipelines that handle large amounts of real-time security data
Work with AI-driven features to boost speed, accuracy, and overall platform performance
Create clean, well-designed APIs and integrations with internal and external systems
Implement strong security practices in everything you build
Troubleshoot and solve technical issues across both backend and frontend areas
Requirements
5+ years of full stack development experience, with hands-on work in Rust, plus a modern frontend framework
Solid software development experience in a SaaS / software product company
Strong foundation in computer science, software design, and system architecture
Experience with cloud platforms, microservices, and containerized environments
Strong understanding of SQL/NoSQL databases and data pipelines (Kafka, ELK, or similar)
Exposure to distributed systems, API design, and performance optimization for large-scale software products
Excellent problem-solving, collaboration, and communication skills
Fluent English
What the Company Offers
The company offers an international work environment, the opportunity to work on advanced cybersecurity data infrastructure, professional growth through a collaborative and innovative environment, competitive compensation including bonus structure, and a hybrid work model based in Tokyo.
No sponsorship at the moment. Full-time permanent job.Show more Show less
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