Senior Solution Designer H/F/X

ATCON is a Belgium-based IT consulting firm established with a vision to empower businesses using the latest technologies and provide best-in-class services to our clients. We support as an end-to-end IT solutions partner for digitalizing business processes and making the data meaningful. Our approach is more solution-driven than technology one, focused to solve business challenges and deliver results. We do what is right for our clients and charge based on what we deliver not on billing hours. Our team consists of self-motivated consultants with an agile mindset, global work exposure, and commitment to deliver the best services.

About the Role

We're looking for an experienced Solution Designer to join a large enterprise environment.
In this role, you'll work closely with Solution Architects, development teams and other stakeholders to translate high-level solution designs into detailed technical designs for implementation. You'll play a key role in designing scalable, secure and reusable solutions while ensuring alignment with enterprise technology, infrastructure and security standards.

Start date: 1/9/2026

Responsibilities

• Translate high-level solution designs into detailed technical specifications for development and infrastructure teams.
• Design scalable, modular and reusable software solutions following enterprise and industry best practices.
• Design APIs and define interfaces between applications and services.
• Produce technical design documentation, including sequence diagrams, class diagrams, ER diagrams and network diagrams.
• Define hosting, deployment, security and disaster recovery requirements.
• Ensure solutions comply with enterprise technology, infrastructure and security standards.
• Participate in technical reviews and provide guidance to development teams.
• Support Solution Architects and other stakeholders throughout solution design and implementation.

Must-Have Requirements

• Minimum 5 years of experience as a Solution Designer or in a similar technical design role.
• Demonstrable experience designing solutions based on microservices architecture .
• Proven experience integrating SaaS solutions .
• Strong Java knowledge, including Spring Boot, JPA/Hibernate and Maven or Gradle .
• Experience designing secure and reusable REST APIs .
• Strong understanding of solution design, system integration and technical design principles .
• Excellent written and spoken English (C1 level or equivalent).
• Available to work onsite at least 2 days per week .

Nice to Have

• Experience working in large enterprise environments.
• Knowledge of enterprise security and disaster recovery principles.
• Experience collaborating with cross-functional technical teams.

Compétences linguistiques

• Anglais (atout)

  • Comprendre : Expérimenté - (C1)
  • Écrire : Expérimenté - (C1)
  • Lire : Expérimenté - (C1)
  • Parler : Expérimenté - (C1)