Senior Security Engineer

🕒 October 21

🇺🇸 United States – Remote

💵 $165k - $225k / year

⏰ Full Time

🟠 Senior

👮‍♂️ Cybersecurity / Security Engineer

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Mysten Labs

WebsiteLinkedInAll Job Openings

51 - 200 employees

Founded 2021

🌐 Web 3

🎮 Gaming

₿ Crypto

💰 Series B on 2022-09

Web 3 • Gaming • Crypto

Mysten Labs is a company focused on building critical infrastructure to enable a more decentralized internet. They are developing next-generation platforms and protocols like Sui, a Web3 platform with the ease of Web2, and other innovations such as decentralized storage and data availability protocols. Mysten Labs also offers products catering to builders and web3 enthusiasts, including decentralized commerce systems and interactive gaming devices. Their research and development efforts include cryptography and novel programming languages. The company's goal is to reshape the future of the internet and expand the possibilities of Web3 with user-friendly solutions.

📋 Description

• Build and operate the Security Observability & Data Platform at tens of TB per month and growing • Develop ingestion, normalization, retention, querying, and detection layers • Write, test, review, and measure detections for precision • Own endpoint security across the fleet, including EDR, binary authorization, and hardening baselines • Lead threat hunting, internal investigations, insider-threat work, and end-to-end security incident response • Perform triage, containment, forensics, root-cause analysis, and preventive control implementation • Build and operate security services including zero-trust AuthN/AuthZ, blocking services, application proxies, asset inventory, developer portals, and compliance as code • Build and run local and Kubernetes agent platforms • Use LLM agents to automate triage, enrichment, investigation, and response with deterministic checks where needed • Review Kubernetes, AWS/GCP, bare-metal, and CI-runner infrastructure and cloud designs for security • Help engineering teams adopt shared security services • Run red-team and adversary-emulation exercises and convert findings into detections and fixes • Write actionable runbooks and post-mortems

🎯 Requirements

• Bachelor's degree in Computer Science, Computer Engineering, a relevant technical field, or equivalent practical experience • 5+ years in security engineering, detection and response, or infrastructure/SRE with a security focus • Hands-on incident response on endpoints and in the cloud • Experience operating an EDR and writing and tuning detections • Knowledge of macOS and Linux internals, including persistence, credential theft, process injection, and living-off-the-land binaries • Experience building or operating telemetry pipelines and a SIEM or security data lake at TB scale • Strong SQL, including detection logic over large datasets • Hands-on production engineering with Linux, containers, Kubernetes, at least one major public cloud, infrastructure as code, monitoring, and alerting • Proficiency in Python or Go • Comfort with Rust or willingness to work in Rust • Working knowledge of SSO (OIDC/SAML), phishing-resistant MFA, device trust, session theft, and token theft • Strong written communication • Interest in the web3 space is required • Employment contingent upon successful completion of a background check

🏖️ Benefits

• Tokens and equity compensation • Eligibility to participate in annual equity and token refresh grant programs • Comprehensive medical, dental, and vision insurance for employees and dependents • Health Savings Accounts (HSAs) and Flexible Spending Accounts (FSAs) • 18 weeks of paid parental leave • Wellbeing programs, including family planning support, gender-affirming care, hormone replacement therapy, and physical fitness/nutrition apps • Mental health support and counseling • Employee Assistance Program (EAP) for financial/legal assistance and home-life referrals • Short-term and long-term disability coverage • Life insurance and accident insurance • Traveler insurance • 401(k) • Complimentary privacy protection service • Wellness stipend • Flexible paid time off • 11 paid holidays per year • Team offsites and annual all-company retreat • Remote-first work environment

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