> Markdown version of [/jobs/ext/1980134-ops-security-engineer-firewall-and-proxy-filtering-services-consultant](https://www.wearedevelopers.com/jobs/ext/1980134-ops-security-engineer-firewall-and-proxy-filtering-services-consultant). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # OPS Security Engineer Firewall and Proxy Filtering Services Consultant - **Company:** Keystone Solutions - **Location:** Brussel, Belgium (Remote available) - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** Microsoft Excel, Agile Methodology, CompTIA Network+, Cyber Security, Intrusion Detection Systems, Python (Programming Language), Network Security, Network Segmentation, Firewalls (Computer Science), Vba Programming Language, Palo Alto Networks, Fortinet, Firewall Services Module, Servicenow - **Published:** August 8, 2026 - **Apply:** https://www.adzuna.be/details/5833078885 ## About the Role * Bachelors degree or equivalent experience. * At least 5 years of relevant experience in firewall environments. * Proven expertise in Firewall, IPS/IDS, and cloud micro-segmentation. * Experience with firewall rules implementation and policy optimization. * Incident resolution experience in security operations. * Hands-on experience with Palo Alto or Fortinet technologies. * Familiarity with Service Now (IT Service Management module). * Proficiency in MS Excel, including automatic reporting (VBA, Python). * Strong knowledge of security, networking, and architecture principles. * Proven experience in analysis and audit reporting is preferable. * Knowledge of Agile methodology is mandatory. * Certifications such as PCNSA (Palo Alto Networks Certified Network Security Administrator), CompTIA Network+, or CCNA are highly valued. * Language requirements: English (mandatory), French (desired), Dutch (nice to have). * Expectation: 50% on-site and 50% homeworking. Soft Skills: * Ability to learn quickly and adopt new technologies and tools. * Autonomous, quick self-starter with a strong team spirit. * Client-oriented, committed, proactive, and result-driven. * Excellent analytical, synthesis, and communication skills. * Ability to work in a dynamic, multicultural environment and provide support during peak periods or outside business hours (on-call). * Capable of following existing project, incident, and change management processes. * Skilled at translating technical issues into non-technical explanations. * Risk awareness and consciousness about service continuity. * Experience working in Agile environments. ## Description * Participate in the daily management of firewall flow requests as part of the clients security operations. * Resolve incidents related to firewall and security policies, ensuring robust protection for the clients infrastructure. * Contribute your firewall technology experience to project teams, supporting the implementation of secure solutions. * Maintain firewall configurations in line with security policies and document all changes and updates. * Manage all requests in compliance with the clients security rules and regulatory obligations. * Perform deep analysis and provide evidence for audits, flow recertifications, and reporting activities., * As a consultant, you will experience a variety of challenging projects across different client environments, accelerating your professional growth. * Keystone Solutions is committed to turbo-charged learning, offering broad exposure and continuous development opportunities. * We foster skyrocketing ambition, supporting your career progression within our consultancy framework. * Being a K-Stone means embodying our core values and delivering excellence in every engagement. ## Related Videos - [Applying Agile Principles to Incident Management ](https://www.wearedevelopers.com/videos/101-applying-agile-principles-to-incident-management) - [Security Pitfalls for Software Engineers](https://www.wearedevelopers.com/videos/726-security-pitfalls-for-software-engineers) - [WeAreDevelopers LIVE - Back to CODE100](https://www.wearedevelopers.com/videos/1909-wearedevelopers-live-back-to-code100) - [Thinking Differently - How to Make Money from Cyber Attacks & Cheats](https://www.wearedevelopers.com/videos/745-thinking-differently-how-to-make-money-from-cyber-attacks-cheats) - [What makes Cybersecurity different for critical infrastructure?](https://www.wearedevelopers.com/videos/571-what-makes-cybersecurity-different-for-critical-infrastructure) - [Robots are coming into the wild! Full-Stack Robotics Engineers, be ready!](https://www.wearedevelopers.com/videos/479-robots-are-coming-into-the-wild-full-stack-robotics-engineers-be-ready) ## Related Articles - [Fully Remote Software Engineer Jobs](https://www.wearedevelopers.com/magazine/447-fully-remote-software-engineer-jobs) - [Best Companies in the Netherlands: Top 25 Companies in 2023 ](https://www.wearedevelopers.com/magazine/193-best-companies-in-the-netherlands-top-25-companies-in-2023) - [The 12 Best Jobs for Software Engineers](https://www.wearedevelopers.com/magazine/401-the-12-best-jobs-for-software-engineers) - [Why Upskilling And Reskilling is Important For Developers](https://www.wearedevelopers.com/magazine/428-why-upskilling-and-reskilling-is-important-for-developers) - [Is Software Engineering Over-Saturated?](https://www.wearedevelopers.com/magazine/418-is-software-engineering-over-saturated) - [Where to Find Entry-Level Software Engineering Jobs](https://www.wearedevelopers.com/magazine/397-where-to-find-entry-level-software-engineering-jobs)