Security Engineer
Confidential
Posted: May 12, 2026
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Quick Summary
We're looking for a Security Engineer with expertise in AdTech to join our team of 1100+ employees in Craiova, with a strong focus on innovation and revenue growth.
Required Skills
Job Description
Company Overview
300+ media companies as clients, $40+ billion in revenue processed, 25,000+ worldwide users.
Operative is a revenue accelerant for media companies around the world. No other software company in AdTech space, brings a comparable depth of experience to create truly innovative software that performs across all platforms, revenue models and business units. We are a SAAS (Software as a Service) platform which helps clients manage advertisements both in the linear (TV) and digital space. We have been in the market for over two decades and have 1100+ employees with 12 offices spread across the globe. Operative is proud to play a pivotal role in the way advertising is bought, sold and managed across media industry.
JOB SUMMARY
Responsible for operating, securing, and continuously improving Operative’s enterprise security capabilities across endpoints, identities, cloud infrastructure, applications, AI platforms, and external attack surface exposure. This role owns day-to-day security engineering operations including detection and response, vulnerability remediation, identity protection, incident response, hardening, and security platform management. The position partners closely with Engineering, Infrastructure, CloudOps, IAM, and GRC teams to reduce organizational risk, strengthen operational resilience, and drive security execution across the company.
This is a high-impact, hands-on role within where engineers are expected to operate across multiple security domains.
Security Engineering & Operations
Operate and maintain enterprise EDR, SIEM, and security monitoring platforms across production environments
Investigate security alerts, validate threats, and drive incident response activities through containment and remediation
Tune and tailor security policies to balance protection, operational stability, and business requirements
Troubleshoot production issues related to security tooling, endpoint agents, detections, and platform integrations
Improve detection fidelity by reducing false positives and enhancing actionable alerting
Partner with Infrastructure, CloudOps, and Engineering teams to resolve security-impacting operational issues
Act as a technical escalation point during security incidents and active threat investigations
Identity, Authentication & PAM
Design enterprise authentication frameworks including company-wide phishing-resistant MFA adoption
Own strategy for human and non-human identities including service accounts, APIs, secrets, and privileged access
Lead PAM strategy, Tier-0 access controls, and Zero Trust access alignment
Monitor dark web and identity exposure platforms for leaked credentials, compromised accounts, and password reuse exposure
Drive credential rotation, access revocation, and remediation activities for exposed or compromised identities
Reduce identity-based attack surface by eliminating legacy authentication methods, excessive privileges, and unmanaged access paths
Endpoint & OS Hardening
Lead OS lifecycle modernization, end-of-support migrations, and hardened golden image standards
Define and enforce CIS-aligned security baselines across laptops, servers, and cloud environments
Partner with infrastructure teams to reduce attack surface, close misconfigurations, and harden enterprise environments at scale
Drive secure-by-default standards for cloud infrastructure, endpoint configurations, and remote access
AI Security & Emerging Technology
Lead security governance and technical guardrails for enterprise AI platforms including Claude, Copilot, and emerging GenAI technologies
Implement AI-focused DLP and monitoring controls covering prompt leakage, sensitive data exposure, prompt injection, OCR extraction, clipboard abuse, and data egress
Assess and secure AI integrations, MCPs, plugins, and external AI tooling before enterprise adoption
Restrict unauthorized AI tools and enable only approved enterprise AI platforms
Drive secure AI enablement without compromising customer, financial, or regulated data
Vulnerability Management & Attack Surface Reduction
Own enterprise vulnerability management lifecycle including prioritization, remediation tracking, validation, and executive risk escalation
Drive remediation of internet-facing vulnerabilities with urgency aligned to active threat intelligence and exploitability
Manage external attack surface exposure across cloud, SaaS, identities, endpoints, email infrastructure, and public-facing systems
Operate and improve enterprise email security controls including phishing protection, malicious attachment detection, spoofing prevention, and domain security standards (SPF, DKIM, DMARC)
Investigate phishing campaigns, business email compromise attempts, malicious domains, and email-based attack vectors
Partner with Engineering and Platform teams to reduce systemic security debt and improve remediation velocity
Incident Response, Disaster Recovery & Crisis Management
Support enterprise incident response, ransomware preparedness, identity recovery, and containment operations
Develop, maintain, and continuously improve Business Continuity (BCP) and Disaster Recovery (DR) capabilities across the organization
Lead disaster recovery planning including immutable backups, critical system restoration, and recovery validation
Coordinate and execute DR exercises, tabletop simulations, and crisis management activities
Validate backup integrity, recovery procedures, and restoration timelines to ensure operational readiness during major incidents
Partner with Infrastructure, CloudOps, Engineering, and Business stakeholders to identify critical dependencies and recovery priorities
Develop operational playbooks for cyber incidents, infrastructure failures, and business disruption scenarios
Improve operational readiness for high-severity security events and operational outages
Compliance, GRC & Leadership
Partner with GRC on audits, compliance initiatives, and evidence collection
Lead and mentor security analysts and junior security engineers
Evaluate security tooling, vendors, and technical solutions through a risk-based and operational lens
Drive accountability and operational alignment across Engineering, Infrastructure, and Cloud teams
WHAT WE EXPECT
Strong hands-on experience in security engineering, detection engineering, infrastructure security, and cloud security
Strong operational experience with Linux systems including troubleshooting, hardening, and production support
Ability to operate independently during high-pressure incidents and ambiguous situations
Strong understanding of modern attacker techniques, identity compromise, ransomware operations, and enterprise defense strategies
Experience working directly with Engineering, Infrastructure, and Executive leadership teams
Strong technical depth across Windows, Linux, cloud infrastructure, identity platforms, and enterprise SaaS environments
Bias toward execution, ownership, and solving problems instead of escalating blockers
Comfortable challenging legacy processes and driving security modernization initiatives
Ability to lead during incidents, operational escalations, and crisis scenarios
Ability to drive remediation and operational alignment across cross-functional teams
OPERATIONAL EXPECTATIONS
This role participates in security incident response, emergency remediation activities, and operational escalations which may require work outside traditional business hours
Availability during high-severity incidents, critical outages, or active security events is expected
Participation in after-hours investigations, maintenance windows, and recovery operations may be required
COMPETENCIES
Must have skills:
EDR Platforms
SIEM Operations
SOAR & Playbooks
Identity & Access Mgmt (IAM)
Privileged Access Mgmt (PAM)
Data Loss Prevention (DLP)
Endpoint Security
MFA Architecture
Zero Trust Design
Cloud Security (AWS\GCP)
Vulnerability Management
Patch Management
OS Hardening & Baselines
Incident Response
Email Security (DMARC/SPF/DKIM)
Security Engineering Leadership
Cross-functional Influence
Team Management & Mentoring
Good to have experience with :
CrowdStrike
Proofpoint
Okta
GenAI Security Controls
AI-Specific DLP
SOC 2 / ISO 27001
Business Continuity / DR
EDUCATION, CERTIFICATION AND EXPERIENCE
8–12+ years of hands-on experience in security engineering
Hands-on ownership of enterprise security platforms
Experience leading security initiatives across global, hybrid environments
Proven ability to partner cross-functionally and influence without authority
Experience managing and mentoring security teams
Why join us ?
Operative is a technology-oriented product organization that believes in empowering its people
We use the latest tech stack and empower our engineers to learn, work and ideate on new technologies available in the market
We provide flexi work schedules and remote working to encourage work life balance
We are an equal opportunities employer and recruit based on the experience and skill set.
We offer a competitive salary and benefits package
“Operative is a merit-first, equal opportunity employer; diverse applications are encouraged.”
Operative cares about your privacy and protecting your data. By submitting an application for a position with Operative, you acknowledge that you have read the following and consent to how Operative treats your data: 1) the Candidate Privacy Policy available at https://www.operative.com/candidate-privacy-notice/ (or if you are a candidate from Israel the Candidate Privacy Notice (Israel), available at https://www.operative.com/candidate-privacy-notice-israel/, and 2) the Candidate Notice for Data Transfer and Retention available at https://www.operative.com/candidate-notice/.