Enterprise Integration Architect | EU Institution in Warsaw | Onsite

Joining KEYES means giving purpose to your talent.

Are you looking for an environment where technology is not an end in itself, but a lever to build a sustainable future? At KEYES, we are not just looking for technical expertise; we are looking for people who share our values.

Do you want to continue your career and grow within one of Belgium’s leading IT companies?

Join KEYES as a Enterprise Integration Architect!

KEYES supports private and public organizations in Belgium and across Europe in their digital transformation by combining business expertise, technological mastery, and a long-term vision.

We support large enterprises, the public sector, healthcare organizations, and SMEs in all their digital challenges: Infrastructure & Cloud Solutions, Cybersecurity Solutions, Business Software Solutions, Mainframe Solutions, Data & AI Solutions, Advisory Solutions, and Staffing Solutions.

More information: www.keyes.eu

THE BACKGROUND

For our client, a European Institution based in Warsaw, we are looking for an experienced Enterprise Integration Architect to join a long-term mission in a cybersecurity and law enforcement environment.

You will play a key role in shaping and governing the architecture landscape, ensuring alignment between business strategy, ICT solutions, and long-term enterprise vision. This role combines strategic thinking with hands-on solution architecture, contributing directly to high-impact public sector initiatives.

YOUR MISSION

As an Enterprise Integration Architect, you will drive architectural excellence across projects and systems by:

• Defining and enforcing architecture standards, guidelines, and best practices

• Translating business needs into scalable, secure, and high-performing architectures

• Designing data, application, and technology architectures (including databases, analytics, and integration layers)

• Supporting solution delivery through design oversight, quality assurance, and change management

• Evaluating and selecting technologies aligned with enterprise strategy

• Ensuring performance, security, and scalability across systems

THE SCOPE

You will contribute to two main areas:

I. Architecture Governance & Standards

• Define ICT architecture frameworks, standards, and guidelines

• Produce high-level and low-level designs supporting the architecture practice

• Ensure consistency across solutions and teams

II. Solution Architecture Services

• Provide hands-on architecture support to ICT projects

• Guide delivery teams on design decisions and implementation approaches

• Balance strategic alignment with practical, solution-level execution

YOUR RESPONSIBILITIES

• Design and maintain enterprise and solution architectures across the full lifecycle

• Analyse business requirements and map them to technical solutions and system capabilities

• Define data architecture, governance frameworks, and BI/analytics platforms

• Lead architectural support for projects (design, implementation, testing)

• Integrate systems and assess existing applications and services

• Produce clear documentation, architectural artefacts, and presentations

• Monitor system performance and drive continuous improvement

YOUR TEAM

You will join the ICT Architecture Team, responsible for providing architectural guidance and consultancy across software development initiatives. The role sits at the intersection of enterprise and solution architecture.

YOUR PROFILE

• You have a University degree (Master’s) in IT or related field

• English level minimum B2 (CEFR) - certificate required

• Minimum 8 years of relevant IT experience, including 5+ years in Architecture roles

• At least 2 years as Application/Integration Architect (preferably in public sector / EU environment)

• Proven experience as lead/key architect in at least one enterprise-wide integration platform deployment

• Strong track record in aligning application architecture with business objectives

• Experience with hybrid environments (cloud & on-premises) and modern integration approaches

• Proficient with modelling tools (e.g. Sparx Enterprise Architect, ARIS or similar)

• Familiar with architecture frameworks and standards (TOGAF, Zachman, Azure Well-Architected, EIF, Archimate)

• Solid understanding of architecture styles, patterns, and interoperability frameworks

Technical knowledge

• Expertise in enterprise integration architecture (data & API level)

• Design of integration platforms: connectors, flows, service bus (SOA)

• Experience with integration platforms (TIBCO, MuleSoft or similar)

• Strong knowledge of integration patterns, standards, and models

• Capacity planning and security design for integration platforms

• Technologies: middleware, application servers, databases, web applications

• Cloud & infrastructure: containerisation, serverless, hybrid architectures

• Knowledge of cloud integration patterns and BI concepts

• Experience with Software Development Lifecycle and DevSecOps practices

• Strong skills in UML and system/application design modelling

Certificates

Relevant certifications (at least 2 mandatory):

• IASA CITA-A (or equivalent)

• Microsoft Certified: DevOps Engineer Expert / Azure Data Fundamentals

• TIBCO Certified Associate / Certified SOA Architect (or similar)

Soft skills:

• Excellent communication and stakeholder management

• Strong ability to translate complex technical concepts into clear business insights

• High-quality documentation and presentation skills

• Analytical mindset with strong problem-solving abilities

• Proven leadership and team guidance capabilities

Do you recognise yourself in this description?

Do you want to learn more?

Apply now! You will be contacted shortly

KEYWORDS

Enterprise Integration Architect - API - Data Integration -MuleSoft - TIBCO -SOA - Integration Patterns - Hybrid Cloud- TOGAF,- DevSecOps

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