Gameplay & UI Developer

📍 Job Overview

Job Title: Gameplay & UI Developer

Company: Jobgether (for a partner company)

Location: France

Job Type: Full-time

Category: Game Development / Software Engineering

Date Posted: 2026-09-14

Experience Level: Mid-Senior (5+ years)

Remote Status: Fully Remote (within CET ±2 hours)

🚀 Role Summary

• Focus on developing client-facing features within a globally successful mobile game, emphasizing UI, animation, and visual polish.

• Drive core gameplay improvements and develop new meta features to enhance player engagement and game longevity.

• Collaborate within a small, senior, and multidisciplinary team, contributing to feature ownership from design through refinement.

• Leverage Unity and C# expertise to translate creative concepts into polished, playable experiences with a strong focus on player feedback and performance insights.

• Contribute to critical game design decisions and shape the overall player experience for millions of users worldwide.

📝 Enhancement Note: This role is positioned within the game development sector, specifically focusing on client-side implementation of gameplay and user interface elements. The emphasis on "client-facing features," "UI, animation, visual polish," and "core gameplay improvements" strongly indicates a need for specialized skills in game engine development (Unity) and object-oriented programming (C#), with a direct impact on the end-user experience of a live mobile game.

📈 Primary Responsibilities

• Develop and implement engaging client-facing gameplay features, with a significant emphasis on user interface (UI) design, animations, and overall visual polish.

• Design, implement, and refine core gameplay mechanics and systems to enhance player engagement, retention, and overall playability.

• Create and integrate new meta-game features and systems that expand the game's depth and long-term appeal.

• Maintain, optimize, and enhance existing gameplay and technical systems to ensure a high standard of quality and performance.

• Contribute innovative ideas and creative solutions to gameplay features, ensuring alignment with the game's established design principles and player experience.

• Actively participate in game design discussions, translating high-level concepts into tangible, polished, and playable game elements.

• Engage in rigorous testing, iteration, and refinement cycles, incorporating player feedback and team insights to continuously improve the game.

• Foster strong collaborative relationships with designers, artists, other developers, and specialists within a multidisciplinary team environment.

• Proactively identify and resolve technical challenges, ensuring optimal performance, stability, and resource utilization.

• Take full ownership of assigned projects and features, leveraging individual strengths and areas of expertise to drive successful outcomes.

• Uphold and contribute to maintaining high technical, creative, and quality standards across all aspects of the game development process.

📝 Enhancement Note: The responsibilities highlight a blend of feature development, system enhancement, and collaborative input. The explicit mention of "player feedback and performance insights" points towards a data-informed development approach, common in live-service games. Ownership of features and contribution to game design decisions suggest a role with significant autonomy and influence.

🎓 Skills & Qualifications

Education: While no specific degree is mandated, a Bachelor's degree in Computer Science, Game Design, or a related field is often preferred for roles requiring deep technical understanding and problem-solving capabilities. Relevant certifications or extensive demonstrable experience can be equally valuable.

Experience: A minimum of 5 years of professional experience in game development, with a strong focus on Unity and C# programming. Proven success in delivering and maintaining mobile games is essential.

Required Skills:

• 5+ years of professional experience in game development utilizing C# and the Unity engine.

• Demonstrated track record of successfully developing, shipping, and supporting mobile games.

• Strong understanding of gameplay development principles and the nuances of the casual mobile gaming market.

• Proficient in problem-solving, with a keen focus on optimization, performance tuning, and ensuring technical quality.

• Proven experience in developing player-facing features such as UI, animations, and gameplay systems.

• Excellent written and verbal communication skills in English, essential for clear collaboration in a remote, multidisciplinary team.

• Strong teamwork and collaboration capabilities, with the ability to integrate effectively into a senior, multidisciplinary team.

• Capacity to take ownership of assigned features and contribute meaningfully to game development decisions. Preferred Skills:

• Deep expertise in specialized areas such as animation systems, particle effects, shader programming, software architecture, performance optimization techniques, or network programming.

• Hands-on, creative approach to development with a meticulous attention to detail and an unwavering commitment to delivering high-quality experiences.

• Ability to conceptualize and implement innovative ideas while ensuring practical application within a fast-paced development environment.

📝 Enhancement Note: The requirement for 5+ years and "proven track record of developing and shipping successful mobile games" indicates a need for experienced professionals who can hit the ground running. The preferred skills are critical differentiators, suggesting that candidates with deeper specialization in areas like shaders or performance optimization will be highly valued for their ability to elevate the game's polish and efficiency.

📊 Process & Systems Portfolio Requirements

Portfolio Essentials:

• Showcase at least 2-3 significant projects demonstrating your contributions to mobile games, ideally within Unity.

• Include examples of developed UI systems, animations, and core gameplay mechanics, clearly detailing your role and impact.

• Provide evidence of performance optimization efforts and problem-solving for technical challenges encountered during development.

• If applicable, include examples of meta-game features or systems you have designed and implemented.

• Clearly articulate the problem, your solution, and the outcome (e.g., improved player engagement, reduced load times, enhanced visual appeal). Process Documentation:

• For each portfolio piece, be prepared to discuss your development process, from initial concept and design to implementation, testing, and iteration.

• Explain how you approach debugging, profiling, and optimizing code for mobile platforms.

• Detail your experience with version control systems (e.g., Git) and collaborative development workflows.

• Be ready to discuss how you integrate player feedback and performance data into your development process.

📝 Enhancement Note: For a role focused on gameplay and UI development, a portfolio is crucial. It should go beyond just listing projects; it needs to demonstrate how the candidate approaches development, problem-solving, and optimization within the context of mobile games. Highlighting specific contributions to UI, animation, and core mechanics will be key.

💵 Compensation & Benefits

Salary Range: Based on industry benchmarks for experienced Gameplay & UI Developers in France with 5+ years of experience and remote capabilities, a competitive salary range is estimated between €60,000 - €90,000 annually. This range can vary based on specific experience, specialization, and the partner company's compensation structure.

Benefits:

• Fully remote position, allowing for flexibility and work-life balance.

• Best-in-class compensation package, reflecting the value of experienced game developers.

• Additional country-specific benefits tailored to the employee's country of residence.

• Opportunity to work on a globally recognized and successful mobile game.

• Direct impact on core gameplay, features, and the overall player experience.

• Collaborative and supportive environment with experienced gaming professionals.

• Creative contribution opportunities to significant game development decisions.

• Exposure to live game operations, feature iteration, and player-driven improvements.

Working Hours: While specific hours are not detailed, a standard full-time commitment of approximately 40 hours per week is expected, with flexibility often afforded to remote employees within the specified time zone constraints (CET ±2 hours).

📝 Enhancement Note: The salary estimation is based on typical compensation for mid-to-senior level game developers in France, considering the remote nature and the emphasis on "best-in-class compensation." The benefits listed are directly from the job description, highlighting the appeal of working on a prominent game and the remote flexibility.

🎯 Team & Company Context

🏢 Company Culture

Industry: Mobile Game Development (specifically casual mobile gaming). This sector is characterized by rapid iteration, a strong focus on player engagement metrics, and continuous updates to live services.

Company Size: While the partner company's size isn't specified, the description mentions a "small, senior, and multidisciplinary team," suggesting a focused development unit, possibly within a larger organization or a dedicated project team. This implies a close-knit environment where individual contributions are highly visible.

Founded: The founding date of the partner company is not provided. However, the mention of a "globally successful mobile game" implies an established product with a significant player base, indicating a mature development process and a focus on live operations.

Team Structure:

• The development team is described as "small, senior, and multidisciplinary," suggesting a lean structure where each member brings significant expertise.

• Collaboration is emphasized, indicating a flat or matrixed reporting structure within the immediate development team, with clear communication lines to design, art, and potentially product management.

• Cross-functional collaboration is essential, requiring close interaction with designers, artists, and other engineering specialists to bring features to life. Methodology:

• Development likely follows an agile or iterative methodology, prioritizing rapid prototyping, testing, and feedback integration for live game updates.

• Data-driven decision-making is implied through "player feedback and performance insights," suggesting a focus on analytics and A/B testing to inform development choices.

• Emphasis on visual polish and animation points to a strong quality assurance process and attention to detail in the user experience.

Company Website: https://jobgether.com/how-jobgether-works (Jobgether acts as a platform, the partner company's specific website is not provided.)

📝 Enhancement Note: The "small, senior, and multidisciplinary team" structure is a key indicator for culture. It suggests a high-performance environment where experienced professionals are expected to be autonomous, collaborative, and contribute to decision-making. The focus on a "globally successful mobile game" implies a mature product requiring robust live operations and continuous improvement.

📈 Career & Growth Analysis

Operations Career Level: This role is positioned at a Mid-Senior to Senior level within the game development discipline. The requirement for 5+ years of experience, ownership of features, and contribution to game design decisions signifies a professional capable of independent work and significant technical/creative input.

Reporting Structure: Within the immediate development team, the reporting structure is likely flat, emphasizing peer collaboration and shared ownership. However, there will likely be a lead developer or producer to whom the role ultimately reports for project alignment and oversight.

Operations Impact: The impact of this role is direct and substantial. By developing core gameplay, UI, and meta features for a "globally successful mobile game," the developer directly influences player engagement, retention, and overall game satisfaction, which are critical drivers of revenue and long-term success in the mobile gaming industry.

Growth Opportunities:

• Technical Specialization: Deepen expertise in areas like advanced Unity optimization, shader programming, AI/ML for gameplay, or complex networking systems, becoming a go-to expert in a specific domain.

• Lead Developer/Tech Lead: Progress into a leadership role, guiding smaller teams, mentoring junior developers, and taking on architectural responsibilities for new features or systems.

• Game Design Contribution: Further leverage creative input to influence game design, potentially moving towards a hybrid Game Designer/Developer role or a dedicated Game Designer path.

• Cross-Disciplinary Learning: Gain broader exposure to art pipelines, backend systems, or live operations management through collaboration and project involvement.

📝 Enhancement Note: The growth opportunities are framed within the context of a game development career. The emphasis on specialization, leadership, and design contribution provides a clear path for career progression beyond the initial role. The "live game" aspect also opens doors to understanding live operations and player lifecycle management.

🌐 Work Environment

Office Type: This position is explicitly stated as "Fully remote." This implies no central office requirement, offering maximum flexibility in location, as long as the employee resides within CET ±2 hours.

Office Location(s): While the role is remote, the requirement to be within CET ±2 hours (Central European Time) suggests a focus on teams that can collaborate effectively within European time zones. This facilitates synchronous communication and collaboration during typical business hours for European teams.

Workspace Context:

• The primary workspace will be the employee's home office setup, requiring self-discipline and effective time management.

• Collaboration will be facilitated through digital tools like Slack, Discord, video conferencing (Zoom, Google Meet), and project management software (e.g., Jira, Asana).

• The "small, senior, and multidisciplinary team" environment suggests a culture of open communication and knowledge sharing, even in a remote setting.

• Access to development tools and potentially company-provided hardware or software licenses will be crucial for effective remote work.

Work Schedule: A standard full-time work schedule (approximately 40 hours per week) is expected. While fully remote, adherence to core working hours within the CET ±2 hours range is likely necessary for effective team synchronization and collaboration. Flexibility may be offered outside of critical meeting times.

📝 Enhancement Note: The fully remote nature within specific time zone constraints is a critical aspect of the work environment. This setup requires strong self-management skills and proficiency with remote collaboration tools. The CET ±2 hours constraint is important for candidates to consider regarding their current location and preferred working hours.

📄 Application & Portfolio Review Process

Interview Process:

• Initial Screening (Jobgether AI): Your application will be processed by Jobgether's AI to quickly assess core requirements.

• Hiring Company Review: Shortlisted candidates are shared with the partner company's internal team.

• Technical Interview(s): Expect one or more interviews focused on your Unity and C# skills, gameplay development experience, and problem-solving abilities. You'll likely be asked to discuss technical challenges from your past projects.

• Portfolio Review: A dedicated session to walk through your portfolio. Be prepared to discuss your specific contributions, design decisions, technical challenges, and the impact of your work.

• Gameplay/Design Discussion: You may discuss game design concepts, your approach to UI/UX, and how you'd integrate new features into an existing game.

• Team/Culture Fit Interview: An opportunity to meet potential team members and assess cultural alignment, focusing on collaboration and communication style.

• Final Offer: Based on the cumulative assessment.

Portfolio Review Tips:

• Curate Strategically: Select 3-5 of your strongest mobile game projects, prioritizing those that best showcase your Unity, C#, UI, and gameplay development skills.

• Detail Your Contributions: For each project, clearly articulate your specific role, responsibilities, and the features you personally developed or significantly improved. Use "I" statements where appropriate.

• Showcase Process & Problem-Solving: Be ready to explain your development workflow, any significant technical hurdles you overcame (e.g., performance bottlenecks, complex UI logic), and how you approached optimization.

• Quantify Impact: Whenever possible, use metrics to demonstrate the success of your work (e.g., "improved UI load time by 20%", "implemented a tutorial that increased player retention by 5%").

• Visuals are Key: Include video demonstrations, GIFs, or screenshots that clearly illustrate your work, especially for UI and animation.

• Tailor to the Role: Highlight aspects of your portfolio that align with the specific requirements of this Gameplay & UI Developer role (e.g., polished UI, engaging gameplay loops, mobile optimization).

Challenge Preparation:

• Coding Challenges: Be prepared for Unity/C# coding exercises, potentially involving implementing a small gameplay mechanic, UI element, or optimizing a given code snippet. Practice common Unity APIs and data structures.

• Design/Problem-Solving Scenarios: You might be asked to outline how you would approach designing a specific UI flow or implementing a new gameplay feature within the context of their existing game. Think about user experience and technical feasibility.

• Technical Deep Dive: Be ready to discuss the architecture of games you've worked on, your understanding of Unity's rendering pipeline, memory management, and performance profiling tools.

📝 Enhancement Note: The interview process emphasizes practical skills and a portfolio demonstration. Candidates should prepare to not just talk about their work but to show and explain it in detail, focusing on their individual contributions and the impact of their development efforts.

🛠 Tools & Technology Stack

Primary Tools:

• Unity Engine: The core development platform. Proficiency in the latest versions and its various modules (e.g., UI Toolkit, UIElements, ECS if applicable) is essential.

• C#: The primary programming language. Deep understanding of object-oriented programming, design patterns, and Unity-specific scripting.

• Version Control Systems: Git (highly probable) for collaborative code management.

Analytics & Reporting:

• In-Game Analytics Tools: Experience with platforms like Firebase Analytics, GameAnalytics, or custom analytics solutions for tracking player behavior, feature usage, and performance metrics.

• Performance Profiling Tools: Unity's built-in profiler is critical for identifying and resolving performance bottlenecks on mobile devices.

CRM & Automation: (Less directly applicable to this role, but may be relevant for team collaboration/project management)

• Project Management Software: Tools like Jira, Asana, Trello for task tracking and workflow management.

• Communication Platforms: Slack, Discord for real-time team communication.

📝 Enhancement Note: Unity and C# are the absolute core technologies. Proficiency with version control (Git) is a standard expectation for collaborative development. Experience with mobile-specific analytics and profiling tools is crucial for a live game developer focused on player experience and performance.

👥 Team Culture & Values

Operations Values:

• Player-Centricity: A strong focus on creating enjoyable and engaging experiences for players, driven by feedback and data.

• Excellence & Polish: A commitment to high standards of quality, attention to detail, and delivering visually appealing, well-functioning features.

• Collaboration & Teamwork: Valuing open communication, mutual respect, and collective problem-solving within a multidisciplinary team.

• Innovation & Creativity: Encouraging new ideas and creative approaches to gameplay and UI design, balanced with practical implementation.

• Ownership & Accountability: Taking responsibility for one's work, driving features to completion, and contributing to the overall success of the game.

Collaboration Style:

• Highly collaborative, with an emphasis on cross-functional teamwork between development, design, and art.

• Open communication channels are encouraged, fostering a supportive environment for sharing ideas and constructive feedback.

• Agile and iterative, with regular check-ins and opportunities for team members to contribute to design and technical decisions.

• Data-informed discussions, where insights from player behavior and performance metrics are used to guide collaborative efforts.

📝 Enhancement Note: The culture is likely geared towards experienced professionals who can work autonomously but also contribute positively to a team dynamic. The emphasis on player-centricity and polish is paramount in the competitive mobile gaming market.

⚡ Challenges & Growth Opportunities

Challenges:

• Balancing Innovation with Live Game Constraints: Introducing new features while maintaining stability, performance, and consistency with an established game and player base.

• Mobile Platform Optimization: Ensuring features run smoothly and efficiently across a wide range of mobile devices with varying capabilities.

• Remote Collaboration: Effectively communicating and collaborating with a distributed team, maintaining strong team cohesion and productivity.

• Iterative Development Cycles: Adapting quickly to feedback and evolving requirements in a fast-paced live game environment.

Learning & Development Opportunities:

• Advanced Unity Techniques: Deep dive into Unity's advanced features, performance optimization tools, and new engine updates.

• Specialized Skill Development: Opportunities to focus on and become an expert in areas like animation systems, advanced UI architecture, or shader development.

• Cross-Disciplinary Exposure: Learning from artists, designers, and other engineers to gain a holistic understanding of game development pipelines.

• Live Operations Insights: Understanding the lifecycle of a successful mobile game, including live ops strategies, event design, and player engagement tactics.

📝 Enhancement Note: The challenges presented are typical for live-service game development. The growth opportunities are designed to leverage these challenges into learning experiences, fostering both technical and soft skill development.

💡 Interview Preparation

Strategy Questions:

• "Describe a complex UI system you've built in Unity. What were the main challenges, and how did you overcome them?" (Focus on architecture, event handling, and performance.)

• "Walk me through a core gameplay mechanic you developed for a mobile game. What was the design goal, and how did you implement it technically?" (Highlight your understanding of game loops, player input, and state management.)

• "How do you approach optimizing game performance on mobile devices? Can you give an example of a performance bottleneck you identified and resolved?" (Discuss profiling tools, memory management, draw calls, and code efficiency.) Company & Culture Questions:

• "What excites you about working on a globally successful mobile game like this?" (Connect your passion for games with the opportunity.)

• "How do you contribute to a collaborative, multidisciplinary team environment, especially in a remote setting?" (Emphasize communication, feedback, and proactive problem-solving.)

• "How do you ensure your work aligns with player feedback and performance insights?" (Discuss your approach to data-driven development and iteration.) Portfolio Presentation Strategy:

• Structure Your Narrative: For each project, clearly state the problem, your solution, your specific contribution, the tools/tech used, and the outcome/impact.

• Show, Don't Just Tell: Use video clips, GIFs, or interactive demos to showcase your work. For UI, demonstrate responsiveness and transitions. For gameplay, show smooth controls and engaging mechanics.

• Highlight Technical Depth: Be prepared to answer technical questions about your implementation choices, design patterns used, and optimization strategies.

• Focus on Mobile Specifics: Emphasize how your solutions are optimized for mobile constraints (touch input, screen real estate, performance).

📝 Enhancement Note: Interview preparation should focus on demonstrating practical application of skills, problem-solving capabilities, and a deep understanding of Unity and mobile game development. The portfolio presentation is a critical component, requiring a clear, concise, and technically sound explanation of past work.

📌 Application Steps

To apply for this Gameplay & UI Developer position:

• Submit your application through the provided Jobgether link.

• Tailor Your Resume: Highlight your 5+ years of Unity and C# experience, specifically mentioning mobile game development, UI implementation, animation, and gameplay systems. Quantify achievements where possible.

• Curate Your Portfolio: Select your strongest mobile game projects. Ensure they clearly demonstrate your UI/UX, animation, and core gameplay contributions. Prepare to walk through these projects in detail during an interview.

• Prepare for Technical Questions: Brush up on Unity best practices, C# fundamentals, object-oriented design patterns, and mobile performance optimization techniques. Practice coding small Unity features.

• Research the Partner Company (if possible): Understand their existing game and target audience to better tailor your responses and demonstrate your interest.

• Practice Your Presentation: Rehearse presenting your portfolio, focusing on clear articulation of your technical contributions and their impact.

⚠️ Important Notice: This enhanced job description includes AI-generated insights and operations industry-standard assumptions. All details should be verified directly with the hiring organization before making application decisions.