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thejassivakumar

Thejas S

@thejassivakumar

SOC Analyst and Full Stack Developer

India
English, Malayalam, Tamil
About me
I'm a full stack developer with expertize in building scalabale, secure and high performance systems. I'm specialized in API development with Node js and frontend in React js. I implement authentication, authorization, encryption, input validation and other best practices to keep your application and data safe.... Read more

Skills

t
thejassivakumar
Thejas S
Offline • 
Average response time: 1 hour

See my services

Custom Websites
I will build a fast, secure, and scalable web application
From$80 / projectMore details
Programming & Tech
I will do security log analysis and threat hunting
From$15 / projectMore details

Portfolio

Work experience

F9_INFOTECH

Cybersecurity analyst

F9 INFOTECH • Full-time

Oct 2025 - Present • 1 yr 1 mo

Cybersecurity professional with SOC experience monitoring and investigating security events across 4,000+ enterprise endpoints. Experienced in alert triage, threat hunting, incident response, endpoint and identity telemetry analysis, IOC validation, and root-cause investigation. Hands-on with Secureworks Taegis XDR, SentinelOne, CrowdStrike Falcon, Wazuh, Sophos XDR, and SentinelOne AI SIEM. Investigates Windows/Linux activity, Microsoft Entra ID sign-ins, endpoint malware, and web-compromise incidents; applies MITRE ATT&CK to structure findings. CEH v13 certified, with published research in AI-enabled cybersecurity and a complementary background in secure backend development.

Junior software engineer

Leuwint Technologies • Full-time

Aug 2024 - Oct 2025 • 1 yr 2 mos

Collaborated closely with the front-end team to design and develop scalable RESTful APIs. Designed and optimized database schemas to support application performance and data integrity. Implemented Role-Based Access Control (RBAC) and secure authentication using JWT (JSON Web Tokens). Developed backend services using Node.js and contributed to frontend development using React.js. Built dynamic and responsive web applications with modern UI practices. Worked with multiple databases including DynamoDB, MySQL, PostgreSQL, and MongoDB, selecting appropriate solutions based on use cases. Ensured secure, efficient, and maintainable code through best development practices.