Real-Time Rail API & Integration Analyst

Médiane Système; Brussel; Sur place; EUR 60 000 - 90 000; Plein temps

Résumé du poste

Médiane Benelux is seeking an Integration & API Analyst for a long-term mission in a critical IT environment focused on real-time railway data exchange and system integration. You will support API-driven data flows between internal and external platforms.

Responsibilities include designing API contracts, modelling data, and collaborating with developers, architects, and stakeholders to ensure secure, scalable integrations and quality outcomes.

Qualifications

• 5–10 years in API, integration, or functional analysis roles.
• Strong experience in data modeling and system integration.
• Proven background in Agile/Scrum environments.
• Experience in defining and managing user stories.
• API design: REST, SOAP, WSDL.
• API documentation: Swagger / OpenAPI.
• API testing: Postman or equivalent.
• Security: OAuth2, JWT.
• Data formats: XML, XSD, XPath.
• SQL and data querying.
• Programming knowledge: Java, .NET, or Python.
• Functional validation of integrations (test cases, scenarios).
• Root cause analysis for incidents and defects.
• Definition of non-functional requirements.
• French or Dutch: C2.
• Second national language: B2.
• English: C1.

Responsabilités

• Analyze integration needs and data exchange requirements.
• Collect, structure, and formalize data models and business rules.
• Design and document API contracts (REST, SOAP).
• Write detailed functional and technical integration specifications.
• Collaborate with developers, architects, and stakeholders.
• Define and execute API test scenarios and validation processes.
• Ensure compliance between implementations and defined contracts.
• Perform impact analysis on integrations and data flows.

Connaissances

API integration

Data modelling

Agile/Scrum

User stories

API design

Security: OAuth2/JWT

REST/SOAP/WSDL

Swagger/OpenAPI

XML/XSD/XPath

SQL

Java/.NET/Python

Root cause analysis

Non-functional requirements

English (C1)

French or Dutch (C2)

Formation

Bachelor's degree in Computer Science or related field

Outils

Postman

Description du poste

Médiane Benelux is seeking an Integration & API Analyst for a long-term mission in a critical IT environment focused on real-time railway data exchange and system integration. You will support API-driven data flows between internal and external platforms.

Responsibilities include designing API contracts, modelling data, and collaborating with developers, architects, and stakeholders to ensure secure, scalable integrations and quality outcomes.