# Matthew Lemons > Staff Software Engineer at LinkedIn Location: San Jose, California, United States Profile: https://flows.cv/matthewlemons As a Staff Software Engineer at LinkedIn, I lead a company-wide initiative to improve security headers on more than 99% of LinkedIn traffic, spearhead improvements to security response, and design and build brand new detection capabilities for various types of vulnerabilities. With over 5 years of experience in this role, I have a proven track record of delivering effective and robust security solutions for one of the largest and most trusted professional networks in the world. Before joining LinkedIn, I worked as a Systems Engineer at Acuitus, where I evaluated government security solutions and integrated them into an AI system, created and developed course content on security and industry best practices, and trained Navy Sailors to an expert level of Windows and Network Administration. I also served as a Captain in the United States Army Reserve for 8 years, where I developed, executed, and assessed training plans, planned and supervised tactical operations, and managed over $10 million worth of military equipment. I am skilled in Software Engineering and Information Security, and proficient in Go and Python. I am passionate about solving complex security challenges and enhancing the safety and privacy of millions of users. ## Work Experience ### Staff Software Engineer, Information Security @ LinkedIn Jan 2018 – Present | Sunnyvale, CA Led a company wide initiative to improve security headers on >99% of LinkedIn traffic Spearheaded improvements to security response including setting SLAs and developing security tooling Discovered and led company wide Code Yellows to remediate vulnerabilities Led comprehensive audit of a high risk system to identify potential insider misuse or abuse Designed and built brand new detection capabilities for several types of vulnerabilities ### Systems Engineer @ Acuitus Jan 2016 – Jan 2018 | Sunnyvale, CA Evaluate government security solutions and integrate them into an AI system Create, review, and develop course content centered around security and industry best practices Trained Navy Sailors to an expert level of Windows System Administration and Network Administration Responsible for finding, reporting, and fixing bugs in a complex expert system Worked in Go, Python, and Java ### Captain @ United States Army Reserve Jan 2010 – Jan 2018 | US Developed, executed, and assessed training plans for 31 subordinate soldiers Planned and supervised tactical operations and battle drills for over 500 soldiers during training exercises Final authority for over $10 million worth of military equipment including: vehicles, radios, sensitive and radioactive items In command of the coordination readiness of a platoon of Biological Detection vehicles and a Technical Rescue platoon that had a 1 week deployment time ### Information System Security Manager / IT Engineer @ e2v aerospace and defense Jan 2014 – Jan 2016 | Milpitas, Ca Designed and implemented a PKI infrastructure, core routing and switching, and a remote office Incident response and forensics team lead. Systems administration and optimization for 100+ employees. Ensure 100% compliance with government regulations pertaining to ITAR and NISPOM / FOCI Conducted complete systems, network, and policy audit and overhaul leading to an agile 2 year refresh plan Managed incident response that discovered 3 new 0 days and prompted an algorithm change from Symantec Worked closely with Defense Security Service to implement and improve all around system security Managed classified environments with zero security incidents ### Sr. Technical Support @ Amazon Jan 2013 – Jan 2014 | Patterson, Ca Network engineering and troubleshooting, project management, mentorship of junior technicians, data cabling, systems administration in a variety of software and hardware environments, telecom/PBX administration, root cause analysis in problem solving, and assistance in managing the daily activities of the department ### Systems and Network Administration Intern @ Acuitus Jan 2013 – Jan 2013 | Palo Alto, Ca Immersive IT training program with 800+ hours of theory and experience with enterprise-class servers and networks Completed two complex, enterprise-class networking implementations with routers, core and boundary switches Resolved 200+ real-world 3rd tier help desk trouble tickets Developed and honed advanced troubleshooting and critical thinking skills necessary to solve complex issues in an adaptive environment Hands on experience troubleshooting Dell, HP, and Cisco hardware ### Responder @ Microsoft Jan 2013 – Jan 2013 | Santa Clara, Ca Monitored and secured datacenter security systems and assets from Security Operations Center Provided access control to high business impact areas and ensured 100% accountability and monitoring at all times ### Lead Community Service Officer @ University of California Police Department Jan 2007 – Jan 2010 | Santa Barbara, Ca Lead Officer at night and during special events in charge of 13+ other employees Acted as a liaison between students, community members, and Police Patrolled the campus on foot and on bicycles reporting emergencies and providing personal safety escorts Conducted a program on bicycle safety education, licensing, and enforcement ### Computer Support Specialist @ El Tejon Unified School District Jan 2005 – Jan 2007 | Lebec, Ca Rolled out 100+ Windows XP clients across an entire High School network Responded to support requests, both client and network related, for a 500+ user network Installed and maintained audio visual systems in a classroom environment ## Education ### Bachelor of Arts in Sociology UC Santa Barbara ## Contact & Social - LinkedIn: https://linkedin.com/in/mlemons --- Source: https://flows.cv/matthewlemons JSON Resume: https://flows.cv/matthewlemons/resume.json Last updated: 2026-04-12