STAGE - Suivi de match enrichi : design et implémentation d’une UI temps réel H/F

📍 Job Overview

Job Title: STAGE - Suivi de match enrichi : design et implémentation d’une UI temps réel H/F Company: WINAMAX Location: Paris, Ile-de-France, France Job Type: Internship Category: Front-end Development / UI/UX Design (within product operations) Date Posted: September 01, 2025 Experience Level: 0-2 Years (Internship) Remote Status: On-site

🚀 Role Summary

• This internship focuses on the design and implementation of a real-time, enriched user interface for live sports match tracking, directly impacting the user's engagement and experience.
• The role involves developing a chronological display of sports events, enabling real-time user reactions via emojis, and integrating editorial content and interactive polls.
• Key responsibilities include managing the technical challenges of real-time data refreshing, ensuring interface performance, and implementing moderation mechanisms for user interactions.
• This position offers a unique opportunity to blend UX principles with modern front-end development, specifically within a high-traffic, real-time environment characteristic of the sports betting industry.

📝 Enhancement Note: While not a traditional "Revenue Operations" or "Sales Operations" role, this internship is crucial for Product Operations and Customer Experience, as it directly influences how users interact with the platform during live events, impacting retention and engagement, which indirectly drives revenue. The real-time nature and user interaction components are highly relevant to operational efficiency and user satisfaction metrics.

📈 Primary Responsibilities

• Design and develop a chronological display of sports events (goals, fouls, substitutions) updated in real-time.
• Implement a user reaction system using emojis and facilitate instant user engagement with live match events.
• Create a fluid and engaging user experience optimized for both desktop and mobile platforms.
• Integrate editorial content, such as operator-inserted messages and announcements, into the live feed.
• Develop interactive polls with real-time visible results and experiment with community interaction mechanisms (reactions, votes, live feedback).
• Manage the scalability and live data refresh challenges, ensuring a performant and robust interface despite continuous event streams.
• Implement moderation mechanisms to oversee and manage user interactions within the live tracking interface.
• Collaborate with the Betting team to define and refine the product's user experience and feature set.

📝 Enhancement Note: The responsibilities highlight a strong focus on user experience (UX) and front-end development, which are critical components of product operations. Ensuring real-time data accuracy and performance is a key operational challenge, directly impacting customer satisfaction and platform reliability.

🎓 Skills & Qualifications

Education: Currently pursuing a degree in an engineering school, with a specialization in software development, front-end development, or product management.

Experience: No prior professional experience required, as this is an internship. However, demonstrable project experience or contributions to open-source projects in relevant technologies will be highly valued.

Required Skills:

• Strong foundational knowledge of React and TypeScript.
• Interest in real-time applications and technologies (e.g., WebSockets, APIs).
• Sensitivity to User Experience (UX) design principles and user interaction flows.
• Curiosity and enthusiasm for live user interactions and product experimentation.
• Creative mindset with a keen eye for interface design.
• Development rigor and a focus on performance optimization.
• Autonomy, curiosity, and a proactive approach to problem-solving.

Preferred Skills:

• Experience with state management libraries (e.g., Redux, Zustand).
• Familiarity with real-time communication protocols beyond basic WebSockets.
• Understanding of UI/UX best practices for responsive design.
• Exposure to agile development methodologies.
• Basic understanding of sports or betting markets could be a plus.

📝 Enhancement Note: The emphasis on React and TypeScript, along with real-time applications, points to a need for strong technical skills essential for building robust and scalable user interfaces. The "sensitivity to UX" and "product experimentation" aspects indicate a role that bridges technical execution with product-centric thinking, common in product operations support roles.

📊 Process & Systems Portfolio Requirements

Portfolio Essentials:

• Showcase of personal or academic projects demonstrating proficiency in React and TypeScript.
• Examples of responsive UI designs, highlighting adaptability across desktop and mobile platforms.
• Case studies or project descriptions detailing the approach to real-time data integration or handling dynamic content.
• Evidence of problem-solving skills, particularly in areas related to interface performance or user interaction design.
• Projects that illustrate an understanding of user engagement and intuitive interface design.

Process Documentation:

• While formal process documentation is not expected for an intern, candidates should be prepared to discuss their development workflow and how they approach debugging and testing in their projects.
• Be ready to articulate the steps taken in designing and implementing a feature, from concept to execution.

📝 Enhancement Note: For an internship, a formal portfolio is less critical than demonstrating foundational skills and a proactive learning attitude. The "process" aspect will likely be evaluated through technical tests and discussions about past projects, focusing on how candidates approach development challenges and integrate new technologies.

💵 Compensation & Benefits

Salary Range: As this is an internship, compensation will be in line with French internship standards, typically including a mandatory internship allowance (indemnité de stage) as legally required in France, plus potential additional benefits. A typical internship allowance in Paris for engineering students can range from €1,000 to €1,500 per month, depending on the company and specific role responsibilities.

Benefits:

• Unique and convivial work environment in the heart of Paris.
• Access to on-site amenities: sports room, video game room, pétanque courts, complimentary drinks.
• Vibrant company culture with regular team-building events and social gatherings organized by the CSE.
• Opportunities to attend technical conferences (e.g., Devoxx, KubeCon).
• Attractive profit-sharing (participation et intéressement) bonuses.
• Employee referral program with bonuses up to €5,000.
• Choice of laptop (Macbook Pro or Windows).
• On-site company restaurant.

Working Hours: Full-time (40 hours per week) as typically expected for a full-time internship.

📝 Enhancement Note: The benefits package is quite generous for an internship, suggesting Winamax invests in its employees' well-being and professional development. The mention of profit-sharing and referral bonuses indicates a strong financial incentive structure that extends even to interns, reflecting a positive company culture. The specific salary range is an estimate based on industry standards in Paris for similar internships.

🎯 Team & Company Context

🏢 Company Culture

Industry: Online Gaming & Sports Betting (specifically, sports betting and poker). This industry is characterized by high transaction volumes, real-time data processing, intense competition, and a strong focus on user experience and engagement. Company Size: Winamax is a significant player in the French online gaming market. While specific employee counts fluctuate, it's a well-established company with several hundred employees, operating with the agility of a tech company. Founded: Winamax was founded in 2005. Its longevity and growth in a competitive market suggest a stable yet innovative company culture.

Team Structure:

• The internship is within the "Betting" team, indicating a specialized group focused on the sports betting vertical of the platform.
• This team likely works closely with product managers, UX designers, other front-end developers, back-end engineers, and potentially data analysts or operations specialists responsible for game integrity and fraud detection.
• The reporting structure would typically involve a direct manager (future internship supervisor) and potentially a Tech Lead overseeing the technical direction of the team's projects.

Methodology:

• Agile development methodologies are likely employed, given the fast-paced nature of the online gaming industry and the need for rapid iteration.
• The team will focus on data-driven decision-making, leveraging user data and performance metrics to guide product development and optimization.
• Emphasis will be placed on continuous integration and continuous deployment (CI/CD) practices to ensure efficient delivery of features and updates.

Company Website: winamax.fr

📝 Enhancement Note: Winamax's position in the online gaming sector implies a culture that values speed, innovation, and user-centricity. The company's focus on real-time data and high availability suggests a strong emphasis on operational excellence and robust technical infrastructure, even for its front-end development initiatives.

📈 Career & Growth Analysis

Operations Career Level: This is an intern-level position, providing foundational exposure to product development and user interface design within a dynamic tech environment. It's an entry point into understanding how user-facing features are built and managed. Reporting Structure: The intern will report to a designated internship supervisor, likely a senior developer or team lead within the Betting team. They will also work closely with other team members, including UX designers and fellow developers. Operations Impact: While not a direct operations role, the work directly contributes to the operational efficiency and user engagement of the platform. A successful real-time interface can lead to increased user retention, higher satisfaction scores, and a more seamless customer experience, all of which are key operational outcomes that indirectly support revenue generation.

Growth Opportunities:

• Development of highly sought-after skills in modern front-end frameworks (React, TypeScript) and real-time technologies.
• Exposure to UX/UI design principles and their practical application in a live product.
• Understanding of product development cycles within the fast-paced online gaming industry.
• Potential for a full-time offer upon successful completion of the internship, transitioning into junior front-end developer or product roles.
• Networking opportunities within a leading French tech company.

📝 Enhancement Note: This internship serves as an excellent stepping stone for a career in front-end development or product management. The skills acquired in real-time UI development and user engagement strategies are transferable and highly valued across various tech sectors, including those with strong operational components.

🌐 Work Environment

Office Type: On-site, based in Paris intra-muros. The description highlights a unique and convivial office environment with various amenities. Office Location(s): Paris, France. Specific address details are not provided, but the emphasis on being "intra-muros" suggests a central Paris location.

Workspace Context:

• The workspace is designed to foster collaboration and employee well-being, featuring amenities like a sports room, game room, and pétanque courts.
• This environment encourages team interaction and a strong sense of community among employees.
• Access to modern technology, including the choice of a Macbook Pro or Windows laptop, ensures efficient work.
• The setup supports a dynamic and engaging work atmosphere, blending professional responsibilities with a positive social experience.

Work Schedule: Full-time (40 hours/week) with the internship duration set at 6 months, commencing in 2026.

📝 Enhancement Note: The office environment at Winamax appears to be a significant draw, emphasizing employee comfort and engagement. For an intern, this can provide valuable insight into a positive and supportive company culture, which is a crucial factor for overall job satisfaction and learning.

📄 Application & Portfolio Review Process

Interview Process:

• Technical Test (CoderPad): Expect a coding challenge focusing on React, TypeScript, and potentially logic or problem-solving scenarios relevant to real-time data handling or UI manipulation.
• HR Screening: A preliminary call with an HR representative to assess general fit, motivation, and logistical details.
• Manager/Tech Lead Interview: An in-depth discussion with the future internship supervisor and the Betting team's Tech Lead. This will likely cover technical skills, project experience, problem-solving approaches, and cultural fit.

Portfolio Review Tips:

• Focus on Relevance: Highlight projects that best demonstrate your React, TypeScript, and UI/UX skills. If you have projects involving real-time data, dynamic content, or responsive design, make them prominent.
• Showcase Problem-Solving: For each project, be prepared to explain the challenges you faced, the solutions you implemented, and the outcome. Quantify results where possible (e.g., "improved loading speed by X%").
• Discuss Your Process: Even for academic projects, articulate your design and development workflow. How did you approach the problem? What tools did you use? How did you test your work?
• Prepare for Live Coding: The CoderPad test suggests a strong emphasis on practical coding ability. Practice common React patterns and data manipulation tasks.

Challenge Preparation:

• Review React Fundamentals: Ensure a solid understanding of components, state, props, hooks, and lifecycle methods.
• TypeScript Proficiency: Be comfortable with types, interfaces, and common TypeScript patterns.
• Real-time Concepts: Refresh knowledge on how WebSockets or server-sent events work, and how to manage asynchronous data streams in a React application.
• UX Principles: Be ready to discuss user-centric design choices and how you'd approach creating an engaging interface.

📝 Enhancement Note: The interview process is designed to thoroughly assess technical proficiency and problem-solving abilities. A strong understanding of React and TypeScript, coupled with an ability to articulate your thought process and project contributions, will be key to success.

🛠 Tools & Technology Stack

Primary Tools:

• Front-end: React, TypeScript.
• Real-time Integration: APIs, WebSockets (or similar real-time communication protocols).

Analytics & Reporting: While not explicitly mentioned for the intern's direct use, the Betting team likely utilizes analytics tools to track user engagement, event performance, and conversion rates related to the live interface. Understanding how to interpret and act on such data would be beneficial.

CRM & Automation: Not directly relevant to this front-end focused internship, but Winamax as a company will have systems in place for customer management and marketing automation.

📝 Enhancement Note: Proficiency in React and TypeScript is paramount. Familiarity with real-time communication mechanisms is a significant plus, directly addressing the core technical challenge of the internship.

👥 Team Culture & Values

Operations Values:

• User-Centricity: A strong focus on creating exceptional user experiences, particularly in the dynamic environment of live sports betting.
• Innovation & Experimentation: Encouragement to explore new ideas, features, and interaction mechanisms to enhance user engagement.
• Performance & Reliability: Commitment to building robust, scalable, and high-performing applications that can handle significant user traffic and real-time data streams.
• Collaboration: Working effectively within a team, sharing knowledge, and contributing to collective success.
• Data-Driven Approach: Utilizing data and user feedback to inform design and development decisions.

Collaboration Style:

• The team likely fosters a collaborative environment where developers, designers, and product managers work closely together.
• Open communication and constructive feedback are expected to drive product improvements.
• Cross-functional collaboration is essential to translate product requirements into a functional and engaging user interface.

📝 Enhancement Note: The company culture appears to value a blend of technical excellence, user focus, and a dynamic, engaging work environment, which is typical for successful companies in the online gaming sector.

⚡ Challenges & Growth Opportunities

Challenges:

• Real-time Data Synchronization: Ensuring seamless and accurate updates from live events to the user interface, managing potential latency or data inconsistencies.
• Scalability: Designing an interface that can handle a large number of concurrent users and a high volume of real-time events without performance degradation.
• User Engagement: Creating an interface that is not only informative but also highly interactive and engaging, encouraging user participation.
• Cross-Platform Consistency: Delivering a consistent and optimized experience across both desktop and mobile devices.

Learning & Development Opportunities:

• Deepen expertise in React and TypeScript, particularly in the context of real-time applications.
• Gain practical experience in UI/UX design and user-centric product development.
• Learn about the technical challenges and operational considerations of a high-traffic, real-time platform.
• Exposure to industry best practices in front-end development and agile methodologies.
• Opportunity to contribute to a high-profile product used by a large customer base.

📝 Enhancement Note: This internship presents a significant opportunity to tackle complex technical challenges in a real-world application, providing invaluable learning and growth for aspiring front-end developers and product professionals.

💡 Interview Preparation

Strategy Questions:

• "Describe a time you had to manage real-time data updates in a project. What were the challenges and how did you overcome them?" Focus on your thought process for handling asynchronous data and potential race conditions.
• "How would you design an engaging and intuitive user interface for live sports event tracking? What key elements would you include?" Be ready to discuss UX principles, interaction design, and visual hierarchy.
• "Imagine a user interaction that could be added to enhance the live match experience. How would you implement it technically and design it from a UX perspective?" This tests your creativity and technical feasibility assessment.

Company & Culture Questions:

• "What interests you about Winamax and the online gaming industry?" Research the company's offerings, market position, and recent news.
• "How do you approach collaboration within a team, especially with designers and other developers?" Be ready to provide examples of your teamwork and communication skills.
• "How do you stay updated with the latest front-end technologies and trends?" This shows your commitment to continuous learning.

Portfolio Presentation Strategy:

• Structure Your Projects: For each project, clearly state the problem, your role, the technologies used, your solutions, and the outcomes. Use visuals or a live demo if possible.
• Highlight Real-Time Aspects: If you have relevant projects, explicitly demonstrate how you handled real-time data, state management, and user interactions.
• Showcase UX Sensibility: Explain your design decisions and how they contribute to a better user experience. Discuss trade-offs made between functionality, performance, and user engagement.
• Be Prepared for Live Coding: Practice coding solutions to common React/TypeScript problems under timed conditions.

📝 Enhancement Note: The interview process will likely assess not only your technical coding skills but also your problem-solving approach, understanding of user experience, and ability to communicate complex ideas clearly. Your ability to articulate your thought process during coding challenges and project discussions will be crucial.

📌 Application Steps

To apply for this internship position:

• Submit your application directly through the provided Lever link.
• Customize Your Resume: Tailor your resume to highlight your React, TypeScript, and any relevant project experience, emphasizing skills like UI design, real-time data handling, and problem-solving.
• Prepare Your Portfolio: If you have a portfolio, ensure it showcases projects demonstrating the skills mentioned in the job description. If not, be ready to discuss personal projects or academic work in detail.
• Practice Coding Challenges: Familiarize yourself with common React and TypeScript coding challenges, as a CoderPad test is part of the process.
• Research Winamax: Understand the company's business, its position in the market, and its culture, especially regarding innovation and user engagement.

⚠️ Important Notice: This enhanced job description includes AI-generated insights and operations industry-standard assumptions, particularly around the role's contribution to product operations and user experience. All details should be verified directly with the hiring organization before making application decisions.