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# Stage Business Solution Engineer : Big Data, Finance & ESG (Python)

- **Company:** Opensee
- **Location:** Puteaux, France
- **Contract:** Internship / Graduate position
- **Skills:** Data Analysis, Big Data, Human-Computer Interaction, Python (Programming Language), Performance Tuning, Standard Sql, SQL Databases, Systems Architecture, Information Technology, Data Analytics, Data Pipelines, Data Generation
- **Published:** July 12, 2026
- **Apply:** https://fr.indeed.com/viewjob?jk=1e59ddc26746ee89

## About the Role

* Final-year Master's student in Mathematics, Computer Science, Engineering, or Finance from a leading Grande École or university
 * Strong analytical mindset with excellent numerical and problem-solving abilities
 * Proficiency in Python and working knowledge of SQL
 * Genuine interest in Finance and Technology, curiosity about how data and analytics reshape banking is essential
 * Excellent communication skills in French and English, both written and spoken
 * A collaborative and outgoing personality, you enjoy telling a story, engaging with diverse stakeholders, and are comfortable presenting to both internal teams and external clients

A Plus

 * Prior exposure (internship, academic project, or personal initiative) to a financial institution, fintech, or data/software vendor
 * Familiarity with banking book risk concepts (ALM, liquidity, credit) or ESG frameworks

## Description

You will be embedded within the Solution team, reporting to a Business Solution Lead. The team acts as a strategic bridge between Opensee's technology capabilities and the business priorities of our clients and prospects. Its core activities include:

 * Pre-sales enablement: crafting compelling use-case demonstrations, building proof-of-concepts, preparing product presentations, and conducting gap analyses for prospective clients
 * Product shaping: contributing to the roadmap for new use cases and features, from data modelling and financial metric design to user interface configuration

As a Business Solution Engineer Intern, your responsibilities will span the following areas:

 * Platform Mastery : Develop a thorough understanding of the Opensee platform: system architecture, deployment model, data ingestion pipelines, data modelling principles, and Python-based calculation engines.
 * Business Deep-Dive : Build solid knowledge of banking book risk topics, with a primary focus on ALM & Treasury, Liquidity Risk, Credit Risk, and ESG-related risk dimensions. Understand the associated regulatory landscape, business pain points, and how data-driven analytics can address them.
 * Use-Case Design & Implementation : Take ownership of designing and delivering a new analytical use case end-to-end: data specification, data model creation, synthetic data generation, metric implementation, performance optimization, UI configuration, and development of advanced Python calculators or models.
 * Product Feedback Loop : Channel insights from your work and from client interactions back to the product team, helping shape feature priorities and inform the development roadmap.
 * Presentation & Communication : Actively contribute to internal and external presentations of your use case. Prepare and maintain the associated documentation and demo materials to a high standard., * Technology : Big Data ecosystems, SQL, Python (advanced), software delivery practices
 * Finance : ALM & Treasury analytics, Liquidity and Credit Risk metrics (Banking Book), ESG risk integration, Balance Sheet Management
 * Project Leadership : End-to-end demo preparation, cross-team coordination, roadmap management, stakeholder communication


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