Full Stack Backend Team Lead

Confirmed live in the last 24 hours

Cybereason

Tokyo, Japan

On-site

Posted December 16, 2025

Job Description

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
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