Full Stack Backend Team Lead (Rust)

  • Tokyo
  • Remote OK - Anywhere in Japan
  • Full-time
  • December 17, 2025
Conditions
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Apply from Japan Only
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No relocation to Japan
(No visa sponsorship from overseas)
Requirements
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Language Requirements
Japanese: Not Required 👍
English: Fluent
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Minimum Experience
Senior or above

Cybereason is on a mission to reverse the adversary's advantage by empowering defenders with ingenuity and technology to end cyber-attacks.
We have the technology, and now we are looking to expand our talent! Join a market leader and a diverse team of passionate professionals who win as one, put customers first, and never give up on reversing the adversary’s advantage.

 

Role Overview

We are seeking an experienced Hands-On Rust Engineering Team Lead to lead a team of talented engineers while remaining deeply involved in architecture, design, and development. This role combines technical leadership, people management, and hands-on engineering in a fast-paced cybersecurity environment.

 

Key Duties & Responsibilities

Technical Leadership (Hands-On)

  • Design, develop, and maintain scalable backend services and selected front-end components for our platform
  • Lead the implementation of high-throughput data ingestion and processing pipelines for large-scale security data
  • Integrate AI-driven analytics capabilities and optimize system performance, reliability, and scalability
  • Architect and develop APIs and integrations with a wide range of IT and security tools
  • Ensure robust security design, secure coding practices, and compliance with industry standards
  • Troubleshoot and resolve complex, cross-stack production issues

 

Team Leadership & Management

  • Lead, mentor, and manage a team of software engineers, including onboarding, coaching, and career development
  • Drive technical excellence through code reviews, design reviews, and engineering best practices
  • Own technical decision-making, architecture discussions, and trade-off analysis
  • Collaborate closely with product, research, DevOps, and security teams to deliver end-to-end solutions
  • Plan and execute sprint goals, manage technical debt, and ensure predictable delivery

 

Skills & Qualifications Required

Required Qualifications

  • Bachelor’s degree in Computer Science or a related field
  • At least 4 years of experience as a Team Leader.
  • 5+ years of professional software development experience, including hands-on experience with Rust
  • Strong fundamentals in computer science, cybersecurity, and networking
  • Proficiency in Rust; familiarity with Go, Java, and C++ is an advantage
  • Experience with cloud platforms, containerization, and microservices architectures
  • Strong understanding of SQL and NoSQL databases
  • Experience with real-time data processing, analytics frameworks, and modern front-end technologies
  • Expertise in data pipeline technologies, the ELK stack, and Apache Kafka
  • Familiarity with observability tools such as Datadog and Vector
  • Proven experience building high-throughput, low-latency systems serving millions of users

 

Preferred Qualifications

  • Experience with SIEM platforms and machine learning applications in cybersecurity
  • Familiarity with big data technologies, time-series databases, and data warehousing solutions
  • Knowledge of GraphQL, infrastructure-as-code tools, and service mesh technologies
  • Contributions to open-source projects or relevant technical publications

 

Technical Skills & Knowledge

  • Data pipelines and ETL processes
  • Distributed systems (Kafka, Flink/Spark, Redis)
  • ELK stack for log ingestion, search, and analytics
  • Cloud-native and serverless architectures
  • API design, versioning, and governance
  • Performance tuning and scalability for large-scale systems
  • Security best practices (OAuth 2.0, encryption, data protection)
  • DevOps, CI/CD, and SRE practices

Cybereason provides unparalleled cyber-defense solutions. They use machine learning and AI to detect and analyze threats for workstations such as computers, mobile devices, and other digital gadgets.

Cybereason's latest offerings connect huge volumes of data to seamlessly automate detection and prevention of cyber-attacks.

View Cybereason's company page

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Full Stack Backend Team Lead (Rust) at Cybereason
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