Senior Business Analyst | EU Financial Institution | Onsite Luxembourg
- On-site
- Luxembourg City, Luxembourg, Luxembourg
- Trasys International
Job description

Joining KEYES means giving purpose to your talent.
Are you looking for an environment where technology is not an end in itself, but a lever to build a sustainable future? At KEYES, we are not just looking for technical expertise; we are looking for people who share our values.
Do you want to continue your career and grow within one of Belgium’s leading IT companies?
Join KEYES as a Senior Business Analyst!
KEYES supports private and public organizations in Belgium and across Europe in their digital transformation by combining business expertise, technological mastery, and a long-term vision.
We support large enterprises, the public sector, healthcare organizations, and SMEs in all their digital challenges: Infrastructure & Cloud Solutions, Cybersecurity Solutions, Business Software Solutions, Mainframe Solutions, Data & AI Solutions, Advisory Solutions, and Staffing Solutions.
More information: www.keyes.eu
THE BACKGROUND
For our client, an EU Financial Institution based in Luxembourg, we are looking for a Senior Business Analyst to join a long-term mission on the Advisory Services Application (ASApp), a Bank-wide IT system used for technical assistance and advisory activities.
The mission is on-site, with hybrid options, running from 03/08/2026 to 31/07/2027, with a possible extension of 50% of the initial duration.
YOUR RESPONSIBILITIES
You will support business analysis activities for the ASApp application, working closely with the business and IT teams. Your work will combine business analysis with ongoing application support for the user community.
Business Analysis
Document current ("As-Is") processes and functionalities
Elicit, conceptualise and document business requirements for new IT developments, including reporting needs where applicable
Prepare and maintain project deliverables: business cases, detailed requirements, test cases and related documentation
Create and update functional documentation, user manuals and other application-related materials
Plan, execute and document testing phases
Business Support
Provide first-level support for the ASApp application
Deliver training sessions to business users and ensure alignment with business processes
Identify and implement measures to enhance data quality
Manage change and communicate updates effectively to the business community
Foster communication with the user community (email, intranet, SmartSite) and coordinate stakeholder consultations
Job requirements
YOUR PROFILE
Mandatory Qualifications/Experience:
University degree in Finance, Accounting, Business Administration or a related field
Minimum 5 years of experience in a similar Business Analyst role, ideally within IT or enterprise application environments
Experience in process and functional analysis, including documentation of As-Is processes and functionalities
Experience eliciting, structuring and documenting business requirements for IT developments
Experience producing project deliverables such as business cases, detailed requirements, test cases and functional/user documentation
Experience planning and executing testing phases
Demonstrated experience providing application support, delivering user training, and leading change management and communication initiatives with a business community
Preferred Experience:
Experience with Advisory Services, Technical Assistance or similar enterprise applications within international financial institutions
Familiarity with change management and multi-channel stakeholder communication (e.g. email, intranet, SmartSite)
Experience in data quality management and improvement initiatives
Competencies and Skills to be Demonstrated:
Strong analytical and documentation skills, precise and structured
Ability to run workshops and elicit requirements directly with business stakeholders
Strong communication skills, comfortable engaging a broad and varied user community
Ability to work autonomously while coordinating closely with the Head of Unit/Division
Well organised, deadline-driven, and comfortable working on-site in a hybrid set-up
Do you recognise yourself in this description?
Do you want to learn more?
Apply now! You will be contacted shortly
KEYWORDS
Senior Business Analyst, Advisory Services Application, Technical Assistance, Business Analysis, Requirements Gathering, Application Support, User Training, Change Management, Data Quality, Testing, Functional Documentation, EU Financial Institution, Luxembourg
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