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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Solution Architect - **Company:** Keystone Solutions - **Location:** Brussel, Belgium - **Experience:** Experienced - **Contract:** Permanent contract - **Skills:** Application Programming Interfaces (APIs), Agile Methodology, Application Integration Architecture, Microsoft Azure, IT Management, Swagger, UML, Openapi, Archimate, Event Driven Architecture, Information Technology, Apache Kafka, Api Design, Api Gateway, Api Management - **Published:** June 12, 2026 - **Apply:** https://be.indeed.com/viewjob?jk=93d3116a6fbc8480 ## About the Role Do you have experience in UML?, * You communicate fluently in Dutch or French (spoken and written), at least level C1 * You communicate fluently in English (spoken and written), at least level B2 * Willing to work on-site up to 5 days per week in Brussels, if required * Minimum 10 year of experience as a software architect (solution, integration or application), demonstrated in the CV. * Minimum 4 years of experience in the railway industry. * Minimum 5 years proven experience with API managers and API gateways. * Minimum 5 years proven experience in integration architecture * Certified for Archimate (minimum foundation level) * Certified for Open Agile Architecture. Evaluation Criteria: * Level of experience with Kafka, Azure Cloud and event-driven architectures (number of projects, role, responsibilities) * Experience in API design using Swagger/OpenAPI (number of APIs designed, role, complexity) * Proficiency in UML and ArchiMate modeling (types of diagrams, use in projects, role) * Depth and relevance of architectural experience in similar environments (scope, technologies, role, duration), * Dutch or French at C1 level; English at B2 level., * Archimate (minimum foundation level) and Open Agile Architecture certifications. * Minimum 10 years as a software architect (solution, integration, or application), with at least 4 years in the railway industry. * Minimum 5 years with API managers and API gateways, and 5 years in integration architecture. * Experience and evaluation based on Kafka, Azure Cloud, event-driven architecture, Swagger/OpenAPI, UML, and ArchiMate modeling. If you are ready to tackle technical and strategic challenges in a dynamic consultancy environment, apply today . ## Description Join Keystone Solutions as a consultant on a client engagement to deliver Solution Architecture within a large-scale customer-facing IT landscape. The mission focuses on a Future Proof Passenger Information (FPPI) program environment, covering commercial channels and products, passenger information systems, and systems for stations, facilities, and buildings. As a Keystone Solutions consultant, you will define solution architectures, bridge stakeholders, and guide teams to make conscious decisions with clear trade-offs and risks, ensuring the solution evolves in line with business guardrails., * As a Keystone Solutions consultant, it is your responsibility to ensure that the architecture of the products you're assigned to is sound, well-understood and continues to evolve in a direction that best support the business case and follows the existing guardrails. * To a great extent, that means facilitating the architectural debate, ensuring the architectural decisions are made consciously and its trade-offs (or derived risks) are well understood, both internally (towards the involved teams) as externally (towards our client's stakeholders). * You're a key partner that works between business stakeholders, IT managers, enterprise architects, domain architects and delivery teams. * You ensure that the solution architecture is correctly implemented by validating the solution design and following up its implementation. * You also ensure knowledge is shared across your colleagues. * You evaluate project constrains to find alternatives, alleviate risks, and perform re-engineering if required. * You update stakeholders about any issues connected to the architecture. * You take care of the architectural analysis of epics. Role Context (Consultancy Engagement): * Customer Experience Solution is responsible for customer-facing IT systems of our client, including commercial channels and products, passenger information systems and systems for stations, facilities and buildings. * As a solution architect you are responsible to define solution architectures in the FPPI program. * You have the ability to grasp the complexity associated with large scale systems, and break it down into simpler, understandable bits towards both engineers as well as business stakeholders. * You're able to facilitate the architectural processes, identifying desired qualities and constraints, ensuring risks and trade-offs are discussed within the team(s) and guiding business and IT management to take informed decisions., * Consultancy Nature of Work: Operate as a Keystone Solutions consultant, collaborating closely with client stakeholders and delivery teams. Expect on-site work at client locations, including up to 5 days per week in Brussels when required. * Dynamic Projects: Engage with diverse architectural challenges across complex, large-scale systems in customer-facing IT environments, enabling exposure to varied domains and technologies. * Turbo-Charged Learning and Development: Grow your capabilities by tackling real-world architectural trade-offs, facilitating stakeholder alignment, and validating implementations across end-to-end solution lifecycles. * Ambition Skyrocketing within a Consultancy Framework: Build a strong consulting profile by taking ownership of architectural decisions, guiding teams, and ensuring traceable outcomes that support strategic client objectives. Keystone Solutions Values in Action: * As a K-Stone, you bring clarity, ownership, and collaboration to every engagement-facilitating debates with transparency, communicating trade-offs effectively, and ensuring knowledge sharing across teams. * You embody client-centric delivery by aligning solution architecture with guardrails and business case value, maintaining integrity and stakeholder trust throughout. Role-Specific Consultancy Impact: * Apply your architecture leadership to a Future Proof Passenger Information program while operating under Keystone Solutions' consultancy model, ensuring robust, evolutive architectures and clear decision-making with documented risks and trade-offs. * Leverage your integration, API management, and event-driven experience to guide solution design and verify implementation quality across multiple interfacing systems and teams. ## Related Videos - [Using code generation for test automation – the fancy way](https://www.wearedevelopers.com/videos/230-using-code-generation-for-test-automation-the-fancy-way) - [Why make use of an integration platform in today's software developments and infrastructure?](https://www.wearedevelopers.com/videos/758-why-make-use-of-an-integration-platform-in-today-s-software-developments-and-infrastructure) - [ChatGPT and Java: A Match Made in Heaven or Hell?](https://www.wearedevelopers.com/videos/536-chatgpt-and-java-a-match-made-in-heaven-or-hell) - [For the REST of us: API First and Conway’s Law](https://www.wearedevelopers.com/videos/1932-for-the-rest-of-us-api-first-and-conway-s-law) - [Next Level Enterprise Architecture: Modular, Flexible, Scalable, Multichannel and AI-Ready?](https://www.wearedevelopers.com/videos/1017-next-level-enterprise-architecture-modular-flexible-scalable-multichannel-and-ai-ready) - [Beyond UML: Making Sense of AI-Generated Code through Visual Architecture](https://www.wearedevelopers.com/videos/2102-beyond-uml-making-sense-of-ai-generated-code-through-visual-architecture) ## Related Articles - [The 12 Best Jobs for Software Engineers](https://www.wearedevelopers.com/magazine/401-the-12-best-jobs-for-software-engineers) - [How to land a developer job in Amsterdam](https://www.wearedevelopers.com/magazine/36-how-to-land-a-developer-job-in-amsterdam) - [Where To Find Software Engineering Jobs](https://www.wearedevelopers.com/magazine/396-where-to-find-software-engineering-jobs) - [Best Companies in the Netherlands: Top 25 Companies in 2023 ](https://www.wearedevelopers.com/magazine/193-best-companies-in-the-netherlands-top-25-companies-in-2023) - [How to Find Tech Jobs in Amsterdam](https://www.wearedevelopers.com/magazine/279-how-to-find-tech-jobs-in-amsterdam) - [Find a Developer Job: 12 Best Job Sites For Developers](https://www.wearedevelopers.com/magazine/165-find-a-developer-job-12-best-job-sites-for-developers)