Lucas Campos Duarte de Castro

Cybersecurity Professional

Entry-level cybersecurity analyst with proven experience automating security operations and conducting vendor risk assessments. Skilled in Python, incident response, and SOX compliance with a track record of reducing manual processes by 60% through intelligent automation.

About Me

Cybersecurity professional with hands-on experience in incident response, vendor risk management, and SOX compliance. Currently completing my BS in Cybersecurity at the University of South Florida with a strong foundation in Python automation, threat analysis, and security operations. CompTIA Security+ certified and passionate about leveraging technology to strengthen organizational security posture.

Education

University of South Florida

Expected Dec 2025

BS in Cybersecurity — GPA: 3.46 / 4.00

Tampa, FL

Relevant Coursework: Advanced Program Design, Software System Development, Information Security & IT Risk Management, Global Cyber Ethics, Object-Oriented Programming, Penetration Testing, Human Aspects of Cybersecurity

Certifications

CompTIA Security+ (Sec+)

CompTIA — Issued Nov 2025

Work Experience

Cybersecurity Analyst

Jan 2024 – Dec 2024

Atmus Filtration Technologies

  • Analyzed and triaged phishing reports and suspicious emails, leveraging CrowdStrike Falcon and ServiceNow to enhance detection accuracy and reduce response times by 30%.
  • Conducted vendor security assessments (VSAs) aligned with NIST CSF and ISO 27001 standards, evaluating third-party risks and ensuring secure vendor onboarding processes.
  • Developed a Python-based automation solution that collected and integrated cybersecurity data into Snowflake dashboards, decreasing manual reporting workload by 50% and improving executive visibility.
  • Supported SOX compliance efforts by assisting in testing and validation of IT General Controls (ITGCs) and documenting findings for audit readiness.
  • Collaborated cross-functionally with IT and risk teams to refine incident response playbooks and enhance overall security operations maturity.

Admissions Representative

Sep 2022 – Dec 2023 & Jan 2025 – Present

USF Office of Admissions

  • Frontline support via phone and email for application/enrollment questions.
  • Managed applications and notes in Slate CRM; created/updated tickets in SharePoint.
  • Kept records accurate and current; followed university policies for handling PII.
  • Partnered with internal teams to resolve cases; escalated through ticket queues when required.

Projects

SHPE Cybersecurity Challenge

2022
  • Placed 4th among 20 teams in a Capture the Flag (CTF) competition hosted by SHPE, Bank of America, NSA, and Raytheon.
  • Solved complex challenges involving decryption, penetration testing, and digital forensics under tight time constraints, demonstrating teamwork and problem-solving skills.

Stock Analyzer Application

2023
  • Designed and developed a stock analysis application using C# and .NET within Visual Studio.
  • Implemented CSV file parsing and data visualization features, enabling detection of trading patterns and generating annotated financial graphs.

Volunteering

Web Developer

May 2021 – Sep 2021

Resilience Inc.

  • Assisted in designing and launching a new company website using WordPress, improving accessibility and user experience.
  • Provided translation services for class materials into Portuguese, broadening the reach of educational resources to diverse communities.

Skills

Programming

Python, SQL, C#, PowerShell, Linux

Cybersecurity Tools

CrowdStrike Falcon, ServiceNow, SecurityScorecard, Snowflake

Technical Skills

Incident Response, Phishing Analysis, Vendor Risk Management, SOX Compliance, SIEM, MITRE ATT&CK

Languages

English (Fluent), Portuguese (Native)

Get In Touch

I'm currently seeking entry-level cybersecurity positions and open to opportunities that offer visa sponsorship. Feel free to reach out!