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Senior Security & Compliance Engineer

Upstream
Gérakas, Greecefull_timeVerifiedPosted 10 Oct 2025

About the role

<p><strong>Who we are</strong></p><p>We are a leader in mobile technology, providing innovative solutions to 1.2 billion consumers. In an ever-increasing digital world, we help businesses grow their digital reach &amp; toolkits to optimize user experience, increase engagement, attract new customers, and boost their revenues.<br/>Think of performance marketing but on steroids as our top-notch marketeers and engineers build digital journeys through an omnichannel marketing approach like no other. Currently, we work with the biggest names in Telco, Insurance, Education, FMCGs, and Retail in over 45 countries in Latin America, Africa, the Middle East, and South-East Asia.</p><p><strong>About the role:</strong></p><p>Our focus centers on bringing domain-specific security knowledge, skills, and best practices to our talented network and engineering teams. We are seeking a <strong>Sr. Security &amp; Compliance Engineer</strong> to provide added value services, helping ensure our business remains highly available, flexible, and robust. An ideal candidate would be a passionate engineer who is dedicated to pursuing complicated technical security problems and coming up with robust engineering solutions. This role requires someone who can exhibit a technical lead role for projects and technologies, who acts as a crucial point of reference within the company, and thrives in challenging, production-facing environments.</p><p><strong>What you will do...</strong></p><p>• Monitor and respond to security events, managing escalation and acting as a liaison during security incidents.</p><p>• Serve as a dedicated security analyst for critical projects.</p><p>• Lead the vulnerability management lifecycle, overseeing installation and patching efforts.</p><p>• Conduct specialized security work, including security audits, Penetration Testing (e.g., CHECK, CREST, CEH, TIGER), evidence collection, and forensics analysis.</p><p>• Drive and own technical tasks, pursuing their completion within time and technological constraints.</p><p>• Contribute to end-user security education and awareness.</p><p>• Maintain and update compliance posture, ensuring security policies and standards remain current and effective.</p><p>• Serve as a primary technical resource for security-related client discussions, articulating technical concepts to various types of audiences.</p><p>• Provide essential security content and review for commercial engagements, including RFPs, bids, and client assurances.</p><p><strong>Requirements</strong></p><p>• <strong>Networking &amp; Infrastructure</strong>: Excellent knowledge of TCP/IP. Comprehensive understanding of the core Linux network stack.</p><p>• <strong>Security Testing Methodologies:</strong> Expert proficiency in essential security disciplines including Network Traffic and Protocol Analysis, comprehensive Vulnerability Assessment and Scanning methodologies, network service enumeration, and hands-on Web Application Penetration Testing techniques.</p><p>• <strong>System and Infrastructure Hardening:</strong> Proven, hands-on experience in developing, implementing, and auditing standardized security baselines, robust configuration management controls, and effective patch management strategies across diverse operating system and application platforms, including critical data services.</p><p>• <strong>Security Control Systems</strong>: Deep knowledge and hands-on experience with SIEM solutions and Vulnerability Management platforms.</p><p>⮚     Experience implementing and managing IPS Systems (Cisco, Checkpoint) and Firewalls (Cisco, Checkpoint).</p><p>⮚     Proficiency with DLP and Endpoint Protection solutions, including Application Control and Device Control.</p><p>⮚     Experience with Web Application Firewalls (WAF).</p><p>⮚     Familiarity with products for IDAM (Identity and Access Management).</p><p>• <strong>Data Protection</strong>: Experienced in data encryption technologies and products.</p><p>• <strong>Development</strong>: High-quality Python/shell development experience is considered a plus.</p><p>• <strong>Knowledge of Cloud and Mobile Security Architecture.</strong></p><p>• <strong>Experience in datacenter protection strategies.<br/> </strong>• <strong>Security Governance: </strong>Demonstrable knowledge of common security standards and compliance frameworks (e.g., ISO 27001, NIST Cybersecurity Framework, SOC 2). Practical experience translating technical controls into formal, auditable security policies and procedures.<br/> • <strong>Formal Documentation:</strong> Proven ability to translate complex security testing results, audits, and posture assessments into high-quality, professional, and accessible documentation suitable for internal leadership and external client assurance reviews.</p><p>• <strong>Stakeholder Communication:</strong> Solid communication skills (both oral and written), being able to explain concepts and ideas to various types of audiences, with proven experience presenting t

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Upstream

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