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Cyber Security Analyst (US Time Zone)


Job Location:

São Paulo - Brazil

Monthly Salary: Not provided by the employer
Posted: 11 June 2026 (30+ days ago)
Application Deadline: 8 September 2026
Vacancies: 1 Vacancy

Job Summary

  • Investigate advanced and persistent attacks using data analysis and data science tools
  • Analyze customers web traffic to detect unidentified threats and reduce false positives using Elasticsearch and BigQuery
  • Research design and continuously enhance detection mechanisms to stay ahead of evolving threats
  • Provide real-time technical support to global customers delivering professional and timely incident responses
  • Produce clear insightful incident reports 
  • Collaborate cross-functionally with R&D and Research teams to optimize the companys detection and mitigation capabilities
  • Design plan and implement internal automation projects to improve team efficiency
  • Work in a shift-based schedule including weekends

Qualifications :

  • At least 4 years of experience in data analysis in cybersecurity or fraud detection domains including experience with logs and dashboards
  • Strong SQL skills: complex queries aggregations GROUP BY ORDER BY filters window functions (e.g. RANK()) CTEs and subqueries
  • Technical understanding of web technologies and clientserver architecture (APIs HTTP basic HTML/JavaScript)
  • Experience with SIEM systems (experience with the Elastic Stack would be an advantage)
  • Strong troubleshooting and problem-solving skills
  • Experience in customer support including direct communication with clients; professionalism and politeness are essential
  • Strong English communication skills

WOULD BE A PLUS 

  • Experience in a Cybersecurity Analyst/Researcher role ideally supporting external customers in threat detection and response
  • Experience in web security and security research: web application security bot management fraud detection
  • Experience with research methodologies (hypothesis testing verification and research plan)
  • Python and JavaScript knowledge
  • Experience with BigQuery/Snowflake
  • Proficiency in building dashboards using BI tools (Snowflake Looker Kibana JSM) 

Additional Information :

  • High level of responsibility and ownership
  • Ability to work independently with minimal supervision
  • Analytical mindset with a data-driven approach to decision-making
  • Genuine interest in data cybersecurity and delivering high-quality customer service
  • Proactive communicator who keeps stakeholders informed without being prompted

Remote Work :

Yes


Employment Type :

Full-time


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At Sigma Software, we are involved with the client’s team to contribute to the design and development of a technical solution for their tokenized domain reservation platform. We started by assigning a software architect to design the smart contracts and integrate blockchain into the s ... View more

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