Functional Analyst API
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Brussels, hybrid (minimum 2,5 days per week on site)
Context
You join client projects in the banking and/or energy sector, working on business applications integrated with multiple internal and external systems.
Responsibilities
- Gather and analyse business requirements with business and IT stakeholders
- Write functional specifications (use cases, user stories, process and sequence diagrams)
- Specify, document and test APIs (REST/SOAP) using Swagger/OpenAPI and Postman
- Design and maintain logical and conceptual data models
- Support developers during implementation and clarify functional questions
- Prepare and execute functional tests, coordinate UAT
- Analyse and follow up incidents and change requests
Requirements
- Minimum 4 years of experience as a Functional Analyst in complex environments (multiple systems, interfaces, stakeholders) within banking and/or energy sector
- Minimum 2 years of hands-on experience with Swagger/OpenAPI and API testing (Postman or similar)
- Proven experience in data modelling (ERD, conceptual and logical models)
- Experience in the banking and/or energy sector
- Good knowledge of SQL
- UML modelling (Enterprise Architect, Lucidchart or similar)
- Familiar with Agile delivery (Scrum, Jira)
- Fluent in English, native in French and/or Dutch
Nice to have
- Python or another scripting language
- Exposure to Azure or other cloud platforms
- Knowledge of regulatory topics (banking) or energy market processes
What we offer
- A dynamic and growth-oriented workplace with start-up energy
- An engaged community of digital experts (Product, Tech, Data, Cybersecurity, Finance)
- Projects with real impact across industries and technological ecosystems
- A people-first environment emphasizing learning, ownership and collaboration
- Internal knowledge sharing, career development support, and mentorship opportunities
At eXalt, we combine the strength of a consulting firm with the agility and innovation of a product-led culture. Join us to build smart, scalable, and human-centered digital solutions.
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