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Penetration Tester
📍 Remote | Europe
🕒 Full-Time

Our client is looking for a Penetration Tester with 3+ years of experience to join a growing security consultancy team.

Key Focus Areas:

Web Application Security TestingAPI Security TestingAuthentication & Access Control ReviewsVulnerability Validation & ExploitationClient Reporting and Remediation Guidance

Requirements:

3+ years' hands-on penetration testing experienceStrong knowledge of OWASP Top 10 and API Security Top 10Experience with tools such as Burp Suite, Nmap, and NessusStrong report writing and client communication skills

Highly preferred to have:

CREST certifications (CRT/CCT), or OSCP+ and/or BSCPExperience with cloud security testingExposure to AI/LLM security assessments

Join a collaborative team working on modern web applications, APIs, cloud platforms, and emerging AI technologies, with strong support for training and certifications.

GCS is acting as an Employment Agency in relation to this vacancy.

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🔐 Information Security Consultant | Remote (UK & Ireland)

📍 Remote (UK & Ireland)
💼 Permanent
🚫 Sponsorship is not available

Ideal Background

GCS is acting as an Employment Agency in relation to this vacancy.

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GCS is acting as an Employment Agency in relation to this vacancy.

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Senior Network Security Consultant (DORA Programme) - Contract

Location: Fully Remote (Europe)

Preferred Location: Poland

Contract Duration: 12 months initial (strong likelihood of extension)

Start Date: ASAP

Overview

We are supporting a major European financial services organisation on a large-scale DORA compliance programme and are looking to onboard multiple Senior Network Security Consultants on a contract basis.

This is a high-impact engagement focused on delivering third-party infrastructure and security assessments at scale. You will join an established Cloud & Network Security function, contributing to critical regulatory compliance activities.

The Role

As a Senior Consultant, you will operate at a strategic and advisory level, focusing on assessment, architecture review, and risk evaluation rather than hands-on engineering.

Key responsibilities include:

Performing security and risk assessments of external supplier infrastructure and integrationsReviewing network architecture, firewall configurations, and technical designsIdentifying security vulnerabilities and compliance gaps aligned to DORAProducing technical risk dossiers and assessment reportsSupporting formal governance and decision-making forums on infrastructure riskProviding security architecture recommendations and remediation roadmapsContributing to firewall policy reviews and optimisation initiativesEmbedding into an existing security operations and architecture team

Candidate Requirements

Experience

5-10+ years' experience in network security, security architecture, or infrastructure security

Strong background in regulated environments (financial services highly desirable)

Experience conducting security assessments, audits, or compliance reviews

Ability to interpret high-level and low-level technical designs

Technical Skills

Strong knowledge of network security architecture and infrastructure design

Hands-on experience with leading vendors such as:

Palo AltoCheck PointCiscoFortinet

Familiarity with core security technologies, including:

Firewalls (including SASE / Prisma)IDS/IPSSIEMWAFDLP

Understanding of:

Cloud security (AWS, Azure, or GCP)Third-party risk / supplier security assessmentsSecurity frameworks and regulatory environments (DORA awareness beneficial but not essential)

Key Competencies

Strong analytical and problem-solving skillsAbility to assess complex technical risk and make clear recommendationsConfident in stakeholder engagement and influencing decisionsExcellent documentation and communication skillsAbility to work independently and as part of a distributed team

Engagement Details

Multiple contract roles available (individual and team-based options)Fully remote with preference for Poland-based consultantsLong-term programme with significant pipeline of workFlexible commercial structure with competitive ratesImmediate onboarding required

GCS is acting as an Employment Business in relation to this vacancy.

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