Nexeo is currently looking for a Functional Analyst – Data to join the Data team of one of our leading energy clients in Brussels.

You will play a key role at the intersection of Business, Finance, Operations, Data and IT, working on projects related to financial closing, reporting and data management.

The role combines functional analysis, data expertise, business process understanding and stakeholder management, with a strong focus on data quality, reconciliation, controls and sustainable reporting solutions.

? Your Responsibilities

Functional Analysis & Solution Design

- Translate business requirements into detailed functional specifications and sustainable technical solutions.
- Analyze business needs and translate them into data and functional requirements.
- Collaborate with Business, Finance, Data Engineers, Architects and IT teams to design appropriate solutions.
- Configure and enhance data processing workflows in collaboration with technical teams.
- Contribute to functional changes involving Dataiku, SQL, data transformations and data quality controls.
- Analyze and adapt SQL queries, data models and reconciliation logic according to evolving business requirements.
- Validate technical implementations against functional specifications and business expectations.
- Investigate production issues, perform root cause analysis and coordinate corrective actions.

Business Rules & Process Management

- Act as a subject matter expert for business rules, calculation logic and data processes.
- Document and validate allocation, metering, pricing and reconciliation processes.
- Ensure consistency of business logic across source systems and reporting solutions.
- Challenge existing processes and identify opportunities for simplification and optimization.
- Translate business decisions into clear, structured and auditable specifications.

Data Quality & Controls

- Define, document and maintain data quality controls and reconciliation rules.
- Implement preventive and detective controls within the data ecosystem.




- Analyze data quality issues and identify their root causes.
- Define thresholds, monitoring mechanisms and exception management processes.
- Ensure data traceability and documentation to support audit readiness and financial reporting.

Testing & Validation

- Coordinate functional testing activities.
- Define test scenarios, test cases and acceptance criteria.
- Support business testing and User Acceptance Testing (UAT).
- Validate results against expected business outcomes.
- Analyze defects and coordinate corrective actions with delivery teams.

Documentation & Knowledge Management

- Maintain accurate and up-to-date functional specifications.
- Document business rules, calculation logic, test scenarios and traceability.
- Ensure effective knowledge transfer to Run and operational teams.
- Contribute to a robust and auditable documentation framework.

Stakeholder Management & Collaboration

- Act as the bridge between Business, Finance, Operations, Data and IT.
- Facilitate workshops and meetings to clarify requirements and business processes.
- Challenge requirements and propose data-driven solutions.
- Provide analytical insights to support business decisions.
- Work effectively with both local and international teams.

? Your Profile

- 3+ years of experience as a Functional Analyst, Data Analyst or in a similar position.
- Proven experience in Functional Analysis.
- Previous experience in the Energy / Utilities sector is mandatory.
- Experience with Finance, financial closing or reporting is strongly appreciated.
- Strong analytical and problem-solving skills.




- Ability to translate complex business requirements into clear and supportable technical solutions.
- Proactive, hands-on and comfortable working autonomously.
- Strong stakeholder management, communication and negotiation skills.
- Ability to work under pressure, particularly during month-end financial closing periods.
- Strong discipline regarding documentation, data quality and controls.

? Technical Skills

Mandatory:

- SQL
- Python
- Power BI
- Data analysis
- Functional analysis
- Data quality and reconciliation
- Business requirements gathering
- Agile methodology

Nice to have:

- Dataiku
- PySpark
- SAP IS-U
- Salesforce
- Azure DevOps
- Knowledge of AWS / Data Platform environments
- Great Expectations
- Collibra
- Knowledge of Data Science / Machine Learning concepts

? Business & Data Expertise

- Financial Closing & Reporting
- Energy Supply / Utilities
- Pricing & Calculation Logic
- Invoicing
- Data Quality
- Data Reconciliation
- Business Rules
- Data Controls
- Data Platforms
- Data Governance
- Functional Specifications
- Testing & UAT
- Process Improvement
- Stakeholder Management

? Languages

- French: Fluent or
- Dutch: Fluent
- English: Fluent
- Excellent written and verbal communication skills.

? Soft Skills

- Strong analytical and conceptual thinking
- Excellent ability to translate business needs into technical solutions
- Proactive and hands-on mindset
- Curious and eager to understand complex business logic, particularly pricing
- Strong communication and stakeholder management skills
- Able to work autonomously while collaborating effectively with integral teams
- Flexible and comfortable managing multiple topics and priorities
- Strong problem-solving abilities
- Able to work under pressure and within tight deadlines
- Highly structured and detail-oriented
- Strong documentation discipline
- Team player with a collaborative mindset

? Interested in this opportunity? Send me your updated CV and let's discuss the role!

📌 Functional analyst – data (España)
🏢 Nexeo
📍 España