Infrastructure and Network Architect

Keystone Solutions; Brussel Hoofdstad; Hybrid; EUR 80,000 - 110,000; Full time

Benefits offered by this job

On-site consultancy

Diverse client projects

Professional development

Career progression

Integrity & collaboration

Job summary

Keystone Solutions is seeking a seasoned Infrastructure Architect for a client-site consultancy mission. The role focuses on delivering and maintaining web infrastructure and applications, shaping scalable architectures, and ensuring continuous, secure operations on enterprise platforms.

You will collaborate with cross-functional teams, translate business requirements into robust solutions, and contribute to reference architectures across projects.

Qualifications

• Master's degree or equivalent by experience.
• Fluent English required; French and/or Dutch are a plus.
• At least 5 years of relevant experience in infrastructure architecture in enterprise environments.
• Broad knowledge of Web Application Hosting (WebSphere, Kubernetes, IIS, Tomcat, HTTP), Web Security (ISVA, F5 WAF, API GW, HSM, oAuth2, TLS).
• Solid technical background in at least two listed assets is preferable.

Responsibilities

• Deliver and maintain infrastructure services for the client, focusing on web infrastructure and applications.
• Design scalable, resilient solutions and contribute to technical architecture responsibilities.
• Standardize web infrastructure and security assets through industrialization.
• Ensure 24/7 operational stability with production support.
• Deploy and secure web applications aligning with bank-wide standards.
• Lead technical investigations into production incidents and perform root-cause analysis.

Skills

Infrastructure architecture

Enterprise environments

Cloud environments

Web infrastructure

Security assets

Agile experience

Education

Master's degree

Tools

WebSphere

Kubernetes

IIS

Tomcat

OAuth2

Job description

Mission Overview:

This is a consultancy mission at the client site, representing Keystone Solutions. As a Keystone Solutions consultant, you will be hired to work on client projects, bringing your expertise to dynamic environments and delivering value through our consultancy model.

Responsibilities:

• Deliver and maintain critical infrastructure services for the client, focusing on web infrastructure and applications.
• Design scalable and resilient solutions as part of technical architecture responsibilities.
• Standardize web infrastructure and security assets through industrialization.
• Ensure 24/7 operational stability by providing production support.
• Deploy and secure web applications in alignment with bank-wide standards, collaborating with cross-functional teams such as Security and DevOps.
• Conduct deep-dive analysis of application flows, performance bottlenecks, and incident root causes to ensure system reliability and efficiency.
• Create and maintain technical architectural designs for new or evolving workflows (OPAD & DTD's).
• Translate business requirements into robust, future-proof solutions.
• Lead technical investigations into production incidents, using tools like logs, traces, and APM data to isolate root causes in application flows.
• Conduct performance benchmarking and capacity planning for WebSphere and cloud (IaaS/PaaS) environments.
• Document findings and recommend architectural improvements to prevent recurrence.
• Partner with project architects, infrastructure engineers, and development teams to review and validate DTDs, ensuring technical feasibility and adherence to standards.
• Facilitate understanding of architectural documents across stakeholders, acting as a subject-matter expert for technical queries.
• Contribute to the definition, maintenance, and evolution of reference architectures for web infrastructure, promoting consistency and reusability.
• Develop and share best practices for performance tuning, flow optimization, and incident troubleshooting.
• Advocate for structured approaches in project delivery and smaller requests, providing guidance to peers and counterparts to ensure alignment with architectural principles.
• Deliver an end-to-end view of solutions, offering deep technical expertise in collaboration with other domain experts.
• Proactively monitor application performance and flow health, identifying risks before they impact operations.
• Guide the management of the deployed solution landscape, identifying opportunities for optimization, consolidation, or decommissioning.
• Proactively identify savings opportunities and propose actionable, realistic recommendations.
• Assess decommissioning candidates and drive their retirement through structured plans.

Requirements:

• Master's degree or equivalent by experience.
• No mandatory certifications, but TOGAF, ITIL, Agile, etc. are considered assets.
• Languages: Fluent English required; French and/or Dutch are a plus.
• At least 5 years of relevant experience in infrastructure architecture in enterprise environments.
• Broad knowledge of Web Application Hosting (WebSphere, Kubernetes, IIS, Tomcat, HTTP), Web Security (ISVA, F5 WAF, API GW, HSM, oAuth2, TLS, etc.), and experience in cloud environments.
• Solid technical background in at least two of the listed assets is preferable.
• Ability to understand bank-related business processes and assess impacts on business; experience with Agile methodology.
• Soft skills: Team player, quick self-starter, pro-active attitude, good communication and influencing skills, analytical and synthesis skills, autonomy, commitment and perseverance, ability to work in a dynamic and multi-cultural environment, customer-oriented, risk awareness, flexibility, strong interpersonal and communication skills, ability to work effectively with a wide range of constituencies in a diverse community.

Keystone Solutions Advantages:

• Consultancy Nature: You will work on-site as a Keystone Solutions consultant, representing our values and expertise.
• Dynamic Projects: Experience a wide variety of challenges across different client environments, ensuring no two missions are ever the same.
• Turbo-Charged Learning: Benefit from continuous professional development and broad learning experiences, accelerating your growth.
• Skyrocketing Ambition: Keystone Solutions is committed to your career progression, offering opportunities to advance within our consultancy framework.
• Values: Being a "K-Stone" means bringing integrity, excellence, and collaboration to every engagement.