Senior Application Architect

Brussel
|Brussel
|Software Architect
|Freelance |Payroll (consultancy)
# INW23412

Function

We’re looking for a senior Application Architect with strong security expertise, or a Security Architect with a solid background in application development, to join our client on a strategic transformation assignment. You will play a key role in establishing a secure development practice within a complex IT environment, acting as a technical authority and change agent who is able to influence both technical and non-technical stakeholders. This is a mission-critical role for someone who combines technical depth with leadership, communication skills, and a structured approach to security.

Your role & responsibilities

  • Design, introduce, and embed secure development practices across multiple development teams

  • Coach and support teams in applying security principles in daily development work

  • Build the foundations of a long-term secure development program based on recognized frameworks

  • Act as project lead during the initial phase, coordinating activities, reporting progress, and managing deliverables

  • Define and document security methodologies, standards, and implementation guidelines

  • Develop and deliver training sessions on secure development to technical teams

  • Review technical designs and architectures and provide expert feedback on infrastructure, software, and methodology

  • Set up application security dashboards and define ongoing control mechanisms to improve security maturity

  • Create standardized security guidelines and an evaluation matrix for internal and external development initiatives

Technical & methodological environment

You will operate in an environment focused on modern security and development practices, including:

  • DevSecOps and Secure Development Lifecycle

  • CI/CD security tooling (SCA, SAST, DAST)

  • Security frameworks such as SAMM or similar maturity models

  • Agile and Lean software development principles

  • Quality assurance practices including test-driven development

  • Project management methods and reporting practices

The ideal candidate

  • Proven experience in large-scale or complex IT environments

  • At least 3 years’ experience reviewing application and security architectures

  • At least 3 years’ experience implementing SCA, SAST, and DAST tools within CI/CD pipelines

  • At least 3 years’ experience in DevSecOps environments

  • Strong communication skills, able to engage both technical and non-technical stakeholders

  • Demonstrated leadership skills with the ability to guide teams and steer initiatives

  • Strong organizational, planning, and coordination abilities

  • Service-oriented, results-driven, and accountable mindset

Nice to have:

  • Knowledge of ITIL

  • Experience with Java, Angular, and Oracle

  • Familiarity with web services and service bus technologies

  • Knowledge of SAMM or CyFun frameworks

Back Print
Senior Application Architect
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