Itsme has fundamentally changed how people lead their digital lives in Belgium, and we are expanding the success story as part of a talented team making a positive impact on society. We are itsme, one of Europe's fastest-growing scale-ups, with 90 team members and counting. Our mission is to provide a state-of-the-art digital identity solution that enables people to interact securely in the digital space. Five years after founding, close to 8 million citizens use the itsme app to identify themselves and sign documents online. Starting in Belgium, we launched the itsme app in 17 European countries, with the ambition of becoming an internationally leading player.
As a Solution Architect, you are the link between business needs and technical execution. You ensure roadmap concepts are feasible, sequenced logically, and translated into actionable, end-to-end solution designs. You work across value streams, bridging product, security, infrastructure and enterprise IT, ensuring our solutions are robust, future-proof, and deliver value efficiently.
You combine impact assessment with solution exploration: diversifying options, assessing trade-offs, and shaping transition paths that guide delivery teams while preserving autonomy.
What your job looks like End-to-End Solution Design
Produce logical and physical solution designs across applications, integrations, and infrastructure.
Tailor non-functional requirements (NFRs) such as security, performance, compliance, and availability.
Define and maintain integration guidelines and system-wide principles.
Separation of Concerns & Component Roles
Define clear responsibilities, boundaries, and interfaces for components (domain, orchestration, integration, protocol/interface).
Ensure maintainability and avoid overlap by clarifying roles and responsibilities in system decomposition.
Support transitions from monoliths to modular/microservice architectures.
Solution Alternatives & Trade-offs
Ensure solution diversification and structured trade-off assessment.
Provide clear recommendations backed by transparent rationale in ADRs (Architecture Decision Records).
Transition & Roadmap Support
Provide transitional architecture patterns and high-level sequencing plans to de-risk delivery.
Pre-wire initiatives in governance (e.g., Portfolio Committee) to prevent surprises and improve decision-making.
Decision Tracking & Standards
Maintain an ADR repository and trade-off rationale.
Align solutions with product guardrails, zero-trust security practices, and architectural modelling conventions (C4, ArchiMate).
Enablement over Control
Apply "just-enough architecture": more guardrails and standards where maturity is low; lighter guidance where teams are seasoned.
Strategic Support
Support Enterprise Architects in impact analyses for acquisitions, new tooling integration, or strategic shifts.
Proven experience as a Solution Architect (or similar role) in SaaS or other high-availability environments.
Strong background in software engineering and system integration.
Experience with API design, microservices architectures, and decomposing monoliths.
Familiarity with mobile applications, distributed systems, and secure data flows.
Skilled in NFR engineering (availability, compliance, performance, security) and transition planning under delivery constraints.
Comfortable leading option generation and trade-off discussions, even with incomplete information.
Excellent communication skills: able to translate complex technical trade-offs into clear guidance for both engineering and business stakeholders.
Plus: experience with TOGAF, C4, ArchiMate; knowledge of digital identity, and experience in high-compliance/security environments.
Language skills: fully proficient in English and native in Dutch or French
What we offer Being welcomed by an informal, enthusiastic, and ambitious team that is revolutionising how we safely manage our digital identity, in Belgium & beyond.
Offices within walking distance from Brussels Central Station, with the possibility to work remotely 3 days a week.
A contract of indefinite duration, with an attractive compensation package.
An environment where we care a lot about our core values:
Integrity : being fair, honest & transparent so that we can be trusted.
Inclusiveness : being an open environment in which all team members' opinions are taken into account.
Innovation : building future-proof solutions by finding new ideas and methods to solve problems.
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