Functional Analyst API

Functional Analyst API

Permanent contract, no freelance

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.

Interested? Apply today and be part of the transformation 🚀