Job Openings Senior Cybersecurity Analyst

About the job Senior Cybersecurity Analyst

We are partnering with a leading cybersecurity company dedicated to protecting organizations’ most critical assets and addressing their greatest risks—the vulnerabilities in people. Through a comprehensive suite of cloud-based solutions, the company empowers businesses worldwide to block targeted threats, secure sensitive data, and strengthen user resilience against cyber-attacks.

The Opportunity


You’ll be part of a global team that pushes boundaries to redefine cybersecurity, guided by our BRAVE core values:

  • Bold in how we dream and innovate

  • Responsive to feedback, challenges, and opportunities

  • Accountable for results and delivering best-in-class outcomes

  • Visionary in future-focused problem-solving

  • Exceptional in execution and impact

Key Responsibilities


  • Work as part of a creative, globally distributed team in a 24/7/365 “follow the sun” model to identify and respond quickly to email-borne threats

  • Analyze data, logs, and patterns to detect account takeovers, suspicious IPs, domains, and sending behaviors

  • Investigate suspicious behavioral patterns and resolve false positives/negatives in detection systems

  • Review and classify customer-reported email messages (spam, phishing, malware, BEC, bulk, ham)

  • Perform deep analysis of email headers and structures to identify novel spam features and create detection signatures/rules

  • Develop and maintain Python applications/tools to support threat detection and streamline analysis activities

  • Collaborate with cross-functional teams to design and develop proof-of-concept threat detection systems

  • Participate in code reviews, debugging, and troubleshooting to ensure system reliability

  • Participate in a rotating on‑call schedule to respond to emerging threats and create detection signatures

  • Contribute to defining the landscape, prevalence, and evolution of messaging abuse and threats

What We’re Looking For

Must‑Have Skills

  • Deep knowledge of IP space and domain space

  • Strong understanding of email-borne attack vectors, tools, and tactics (phishing, malware, BEC, spam)

  • Solid SQL/Presto SQL skills with proven query-building experience

  • Ability to create detection signatures/rules based on suspicious patterns (2–4+ years of experience)

  • Familiarity with email headers, structures, and email security standards/protocols (SPF, DKIM, DMARC)

  • Practical experience with Regular Expressions

  • Minimum 2+ years of hands-on experience with Python or another programming language

  • Familiarity with Unix environments and command-line tools for text file manipulation

  • Strong analytical and problem-solving abilities

  • Ability to work independently while collaborating effectively with global, remote teams

  • Bachelor’s degree in Computer Science or equivalent technical experience


Nice to Have

  • Experience with Python frameworks (Django, Flask, Pandas)

  • Familiarity with LUA-based detection signatures

  • Experience with ClamAV, Yara, or custom frameworks for signature-based detection

  • Background in data analysis and handling large datasets

  • Exposure to cybersecurity best practices and anomaly detection techniques

  • Experience developing proof-of-concept threat detection systems

  • Contributions to security research or open-source projects

  • Strong curiosity about email message structures and evolving threat tactics

Work Environment

  • Location: Córdoba, Argentina/ India

  • Employment Type: Full-time

  • Collaborative, global team environment with cross-functional interaction

  • Agile application development setting, emphasizing adaptability and continuous improvement

  • Flexible work arrangements to support productivity and work-life balance

  • Culture rooted in values of innovation, accountability, and teamwork



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