Senior Cyber Security Analyst

Senior Cyber Security Analyst

Romania

Overview

Required skills

SQL / strong Cybersecurity / strong Data analysis / good BI tools / good

We are seeking a Senior Cyber Security Analyst to work with a highly dynamic Ad
Tech ecosystem, aiming to protect the digital world from malvertising.

This role involves direct collaboration with clients,
- depth analysis of web traffic, identification and neutralization of anomalous behaviors linked to malicious bots, fraud patterns, and malvertising campaigns. You will also play a key part in identifying and neutralizing harmful bots and online threats.

If you have a strong background in cybersecurity and a passion for neutralizing emerging threats at scale, we’d like to hear from you.

Customer

Our client provides comprehensive security solutions designed to protect individuals, organizations, and communities from digital threats. Operating across various sectors, the company addresses vulnerabilities and ensures protection against a wide range of risks, especially in the digital space. Their products focus on bot defense and
- malvertising solutions specifically for Ad
Tech companies. They support onboarding and integration processes for different partners, including Supply-Side Platforms (SSPs), Demand-Side Platforms (DSPs), agencies, and publishers. They offer protection solutions for a variety of use cases, along with a customizable reporting console and APIs that can be seamlessly integrated into clients’ systems.

Requirements

Bachelor’s degree in computer science, information security, or a related field

3+ years of experience as a Data Analyst / Cybersecurity Analyst / Cybersecurity Researcher, or a similar role

Proficiency in building dashboards using BI tools such as Redash, Looker, Imply, or Kibana

Strong Python skills for data analysis

Proficient in SQL, including writing complex queries and
- defined functions

Solid understanding of web architecture and protocols, including CDN, HTML, DOM, Java
Script, HTTP/HTTPS, and IPv4/IPv6

Strong knowledge of web security and security research, including web application security, bot management, and fraud detection

Experience with security research methodologies, including hypothesis testing, verification, and awareness of bias

At least an Upper-Intermediate level of English

WOULD BE A PLUS:

Hands-on experience with cloud data platforms such as Big
Query and Snowflake

Practical experience of using Jupyter Notebooks

Basic knowledge of Java
Script

Personal Profile

Self-motivated and able to drive projects independently

Strong written communication skills, especially in
- facing contexts

Analytical and
- driven decision maker

Passionate about data, security, and customer success

Skilled in solving problems using statistical methods

Responsibilities

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

Research, design, and enhance detection mechanisms to stay ahead of emerging threats

Analyze Customer traffic to identify undetected threats and false detections, using mostly Elastic
Search and Big
Query (SQL)

Participate in
-
- green projects together with Engineering, Research and Customer Success teams

Support Customers (Tier 2) in
- time, providing professional technical responses

Work side by side with Customers, providing insightful incident reports

Communicate with global Customers and provide quick responses and resolutions

Work with
- functional R&D and Research teams to optimize company’s ability to detect and mitigate
- time cyber attacks

Design, plan, and implement projects and automation for internal use

Be prepared to work shifts (including weekends)

Informații detaliate despre oferta de muncă

Firma:	Sigma Software
Localiția:	Romania
Adăugat:	30. 10. 2025 Postul de muncă activ

Răspunde la anunț
Fii primul, care se va înregistra la oferta de muncă respectivă!