Cyber Security Analyst

Sigma Software Group

Cyber Security Analyst investigating advanced threats and analyzing traffic patterns for a global security provider. Collaborating with R&D teams to enhance detection mechanisms and provide customer support.

Posted 6/23/2026full-timeRemote • 🇧🇷 BrazilMid-LevelSeniorWebsite

Tech Stack

Tools & technologies

BigQueryCyber SecurityElasticSearchJavaScriptPythonSQL

About the role

Key responsibilities & impact

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 company's detection and mitigation capabilities
Design, plan, and implement internal automation projects to improve team efficiency
Work in a shift-based schedule, including weekends

Requirements

What you’ll need

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 client–server 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)

Benefits

Comp & perks

Proactive communicator who keeps stakeholders informed without being prompted

ATS Keywords

✓ Tailor your resume

Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills & Tools

data analysisSQLPythonJavaScriptweb technologiesclient-server architectureSIEM systemsElasticsearchBigQuerydashboard building

Soft Skills

troubleshootingproblem-solvingcustomer supportcommunicationprofessionalismpolitenesscollaborationincident responsereport writingteam efficiency