> Markdown version of [/jobs/ext/3584766-senior-security-consultant](https://www.wearedevelopers.com/jobs/ext/3584766-senior-security-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). --- # Senior Security Consultant - **Company:** Keystone Solutions - **Location:** Brussel, Belgium (Remote available) - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** Multitier Architecture, Applications Architecture, Client Server Models, IT Management, Network Security, Systems Development Life Cycle, Software Engineering, Software Security - **Published:** October 5, 2026 - **Apply:** https://www.adzuna.be/details/5912254864 ## About the Role * Fluent in French or Dutch * Good command of English Education: * Master or Bachelor degree plus relevant experience Certification: * ISO27001 or equivalent Telework: * Expectation: 50% on site & 50% homeworking Required Experience / Knowledge: * 5 years of relevant experience and knowledge of IT production or networks in technical and/or functional domains Technical Experience: * Mandatory: Prior experience in software development; good understanding of SDLC activities * Knowledge of application architecture basics (n-tier, client server) * Understanding of network security fundamentals * Good understanding of security frameworks such as NIST and ISO27001 * Basics of IT risk assessment/management * Preferable: Experience working on security topics in projects Business Experience: * Preferable: Experience in banking environment Soft Skills: * Very good autonomy and personal effectiveness * Good verbal and listening communication skills * Ability to see the overall picture and analyze situations * Strong teamworking and information sharing abilities ## Description The Consultant Security position is a consultancy mission at a client site, representing Keystone Solutions. As a Keystone Solutions consultant, you will be hired to work on client projects, bringing your expertise and values to every engagement., * Strengthen the client's security team by overlooking security actions in business projects and supporting the evolution of the NIST framework. * Act as the contact person for delivering evidence for NIST controls to the Benelux team. * Ensure security requirements are integrated early in projects and opuses. * Fill and review application security forms with tribe teams. * Evaluate compliance of changes and assist the CISO in GO/NO GO release gates. * Request evidence from subject matter experts for NIST controls. * Submit NIST evidence to the central team and negotiate acceptance criteria. * Report progress periodically on NIST controls and escalate issues to IT management., * Consultancy Nature: You will work on-site as a consultant, representing Keystone Solutions in client environments. * Dynamic Projects: Experience a diversity of challenges across various client settings. * Turbo-Charged Learning: Benefit from professional development and broad learning opportunities. * Skyrocketing Ambition: Keystone Solutions is committed to your career growth within our framework. * Values: Being a K-Stone means bringing our core values to every engagement.