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Cyber Security Analyst

Role overview

Qualifications

  • At least 4 years of experience in data analysis in cybersecurity or fraud detection domains
  • Strong SQL skills: complex queries, aggregations, GROUP BY, ORDER BY, filters, window functions
  • Technical understanding of web technologies and client–server architecture
  • Experience with SIEM systems

Responsibilities

  • Investigate advanced and persistent attacks using data analysis and data science tools
  • Analyze customers' web traffic to detect unidentified threats and reduce false positives
  • Research, design, and continuously enhance detection mechanisms
  • Provide real-time technical support to global customers

Key facts

Other skills

  • Troubleshooting (Problem Solving)
  • Problem Solving
  • Communication
  • Analytical Thinking
  • Proactivity

About the company

Sigma Software Group logo

Sigma Software Group

IT Services & IT Consulting

Sigma Software Group, an award-winning and trusted IT partner, has been serving customers for over 22 years, providing comprehensive IT solutions to various businesses, ranging from startups to established software product houses. As one of Europe's substantial IT consultancies, it brings together a dedicated workforce of over 2,100 professionals in 40 offices across 19 countries. With a diverse client base, including more than 300 enterprises, including Fortune 500 stalwarts, Sigma Software Group is a preferred choice for developing solutions that help businesses create cutting-edge products while meeting their unique needs. Sigma Software Group operates as a dynamic ecosystem of tech companies, offering 25 ready-to-implement innovative products and 40+ value-added services. Furthermore, Sigma Software Group is committed to fostering innovation through initiatives such as the Sigma Software Labs business incubator, Sigma Software University, the SID Venture Partners VC Fund, UA Tech Network, Techosystem, the European Business Association, and other collaborative efforts. Since 2015, Sigma Software Group has consistently earned recognition on the IAOP's prestigious World's Top 100 Outsourcing list. The company's accomplishments have also been acknowledged by prominent global media outlets such as Forbes, CNBC, The Times, and Reuters.

Company details

Company typeLarge
IndustryIT Services & IT Consulting
Company size1001 - 5000

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Job description

Company Description

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 customer is a global provider of comprehensive security solutions, protecting individuals, organizations, and communities from a wide range of risks, particularly in the digital space. Their enterprise-focused products specialize in bot defense and invalid traffic detection, helping clients safeguard critical systems and maintain operational integrity.

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.

Job Description

  • 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

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 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) 

Additional Information

PERSONAL PROFILE

  • 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

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MR

Marcus Rivera

Chief Revenue Officer

m.rivera@company.com
linkedin.com/in/marcusrivera
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