Senior Application Security Engineer

Job Description
Protect the Future of Finance
Block's Offensive Security team is on a mission to safeguard the financial systems of tomorrow. We're seeking a seasoned Senior Application Security Engineer to join our elite squad of security engineers. As a key player on our team, you'll be responsible for identifying and crushing security vulnerabilities in our applications, ensuring the integrity of our systems, and protecting the trust of our customers. We don't throw security problems over the wall. We understand the struggle of our engineers and provide contextual guidance for a diverse, complex and cutting edge tech stack that enables the business. We don't work in isolation, engineering and security teams at Block are our partners. We collaborate with our partners at every opportunity we can find and place the needs of our partners at the highest priority.
Your Mission:
Conduct penetration tests, source code reviews, and design reviews to uncover hidden security threats
Participate in red and purple team operations, outsmarting attackers and fortifying our defenses
Dive deep into our tech stack to develop a mastery of our applications and services
Stay one step ahead of threat actors, understanding their tactics and motivations
Review and improve the designs of complex systems, ensuring they're secure by design
Communicate critical security findings to cross-functional teams, providing contextual remediation steps and guiding resolutions every step of the way
Help respond to incidents and reproduce bug bounty reports.