Platform Engineering Security Solution Architect

pA leading financial services organization operating critical market infrastructure is seeking an experienced bSecurity Solution Architect /b to strengthen its enterprise security architecture. The role focuses on translating complex business, risk, and security requirements into scalable architectural solutions, with a particular emphasis on cryptography, key management, emerging cryptographic risks, and secure technology adoption. /ph3Responsibilities /h3ulliDesign and implement enterprise security architectures aligned with organizational architecture principles, security standards, and regulatory requirements. /liliTranslate business requirements and risk assessments into clear security architecture requirements and high-level technical designs. /liliDefine architectural principles, standards, and patterns for cryptography, key management, digital certificates, and related security domains. /liliCollaborate with engineering, infrastructure, application, cloud, network, and business teams to ensure consistent implementation of security best practices. /liliAssess existing and emerging security risks, identify architectural gaps, and evaluate build, buy, and hybrid solutions with clear technical trade-offs. /liliAct as a subject matter expert, supporting proof-of-concept activities, architectural decisions, secure technology adoption, and continuous security improvement. /li /ulh3Qualifications and Skills /h3ulliStrong enterprise architecture knowledge across applications, infrastructure, networking, cloud environments, and cybersecurity. /liliIn-depth understanding of cryptography, public key infrastructure, key management, cryptographic agility, and emerging post-quantum security challenges. /liliStrong understanding of how cryptography is implemented across protocols, certificates, software libraries, applications, hardware, and network communications. /liliAbility to assess multiple technical discovery sources, identify security coverage gaps, challenge assumptions, and evaluate complex architecture options. /liliProactive and analytical mindset with the ability to independently investigate complex problems and drive initiatives from technical assessment through architecture and implementation. /liliExcellent stakeholder management and communication skills; experience within financial services or critical infrastructure environments and relevant security or architecture certifications are considered an advantage. /li /ulh3Halian Group /h3pWith over 28 years of experience, we have come to understand that innovation is the only way to provide agile, practical solutions that transform businesses and careers. /ppOur resourcing and smart services help you to realize tomorrow’s potential. Discover the amazing things possible when you bring the right people and the right technologies together. /ppAt Halian, we recognize that diversity, equity, and inclusion (DEI) are essential to building high-performing teams for our clients. We are committed to connecting organizations with top talent from all backgrounds, ensuring that every individual feels valued, respected, and empowered to contribute their unique perspectives. We encourage applications from all qualified candidates, regardless of race, gender, disability, or any other characteristic that makes them unique. By fostering diverse and inclusive workplaces, we help our clients drive innovation, enhance collaboration, and better reflect the communities they serve. /ph3Platform Engineering Security Solution Architect in Brussels, Belgium /h3