[Remote] Security Engineer III, Vulnerability Management and Response - Strategic Enablement

Note: The job is a remote job and is open to candidates in USA. arenaflex Security's Vulnerability Management and Response - Strategic Enablement team is looking for a Security Engineer III. The role involves defining technical security strategies, leading the design and development of security automation, and mentoring other security engineers to enhance their problem-solving skills. Responsibilities • Define the technical security strategy for vulnerability management automation and a homegrown vulnerability detection platform, ensuring scalable and sustainable integration of new security capabilities into arenaflex’s infrastructure. • Lead the design and development of advanced security automation, workflows, and tooling; delegate implementation details to other engineers while ensuring technical excellence and alignment with team objectives. • Drive the creation of proof-of-concepts and production-ready solutions for vulnerability detection, assessment, and remediation across diverse environments, setting best practices for approach and execution. • Partner with TPMs, SDEs, and cross-organizational stakeholders to translate ambiguous program requirements into robust technical designs that scale across arenaflex; identify integration risks early and provide clear mitigation paths. • Perform deep research and analysis on emerging vulnerabilities, novel exploitation techniques, and industry trends; anticipate threats and proactively evolve detection methods to address future challenges. • Act as a technical multiplier by mentoring, coaching, and developing other security engineers, growing their ability to independently solve complex problems while instilling strong mental models for approaching security issues. • Serve as the escalation point for complex or ambiguous issues, unblocking engineers by providing clarity, context, and principled technical direction that balances security, scale, and business needs. Skills • 4+ years of non-internship background in troubleshooting systems issues, analyzing logs, or automating complex tasks using command line tools experience • 5+ years of work in identifying security issues and risks, and developing mitigation plans experience • Experience working in identifying security issues and risks, and developing mitigation plans • Experience (non-internship) in industry-based security vulnerabilities identification, attack patterns, and remediation techniques • Experience as a mentor, tech lead or leading an engineering team • Experience applying threat modeling or other risk identification techniques or equivalent • Experience with security in service-oriented architectures/microservices and web services Benefits • Equity • Sign-on payments • Full range of medical, financial, and/or other benefits Company Overview • arenaflex is a tech firm with a focus on e-commerce, cloud computing, digital streaming, and artificial intelligence. It was founded in 1994, and is headquartered in Seattle, Washington, USA, with a workforce of 10001+ employees. Its website is Company H1B Sponsorship • arenaflex has a track record of offering H1B sponsorships, with 18969 in 2025, 21175 in 2024, 19057 in 2023, 24088 in 2022, 12233 in 2021, 14881 in 2020. Please note that this does not guarantee sponsorship for this specific role. Apply tot his job Apply tot his job Apply tot his job