Sigma Software Technology/Software

Cyber Security Analyst (US team)

Remote Full-time

We're seeking motivated, sharp-minded professionals to join our team as a Cyber Security Analyst/Researcher. In this role, you'll collaborate directly with clients, examine traffic patterns, and play a key part in identifying and neutralizing harmful bots and online threats.

Why join us? If you're passionate about cybersecurity and eager to make the internet a safer place, this is your chance to make a meaningful contribution.

CUSTOMER

Our client delivers advanced cybersecurity solutions designed to protect organizations, users, and digital ecosystems from evolving online threats. The company specializes in bot defense and anti-malvertising technologies for the AdTech industry, supporting SSPs, DSPs, agencies, and publishers through scalable protection platforms, customizable reporting tools, and API integrations.

PROJECT

The project focuses on real-time threat detection and bot mitigation for enterprise-scale clients. Cyber Security Analysts collaborate directly with customers, leveraging advanced analytics platforms to identify malicious traffic patterns and neutralize online threats. This dynamic environment requires both technical expertise and strong communication skills.

Investigate advanced and persistent attacks using data analysis and data science tools

Analyze customers' web traffic to detect unidentified threats and reduce false positivesusing 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

At least 3 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 working with web traffic data, including HTTP traffic, logs, request analysis, and traffic pattern investigation.

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, providing 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)

Job description provided by Sigma Software.
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