Unity Expert for Mobile Game Overhaul

@sunainawbst

Hey there, I have carefully reviewed your project requirements. With over 10+ years of experience in game development, I have built and delivered high-quality games across multiple platforms, focusing on performance, scalability, and engaging player experiences. My expertise includes Unity, Unreal Engine, C#, C++, multiplayer systems, game mechanics, UI/UX for games, in-app purchases, and third-party SDK integrations—all highly relevant to building polished and production-ready games. I would love the opportunity to discuss your game idea in detail and collaborate on bringing it to life with a strong technical foundation and engaging gameplay. Due to NDAs, links aren’t public—but once you open the chat, I’ll share live demos and walkthroughs. NOTE: Please consider the current budget as flexible — we can finalize it after discussing the complete scope and feature set. Thanks & Regards, Kajal

@pasngames

Hello, I have carefully reviewed your requirements and understand you need an experienced Unity developer/team to take over a live mobile game, migrate the backend infrastructure, improve multiplayer reliability, optimize performance, and prepare the project for long-term expansion. With 9+ years of experience in Unity, multiplayer game development, backend integration, mobile optimization, and live-service architecture, I specialize in restructuring existing projects, server migration, networking improvements, scalable backend systems, and production-ready game development. My team and I can professionally stabilize and expand your platform while maintaining a clean and future-proof architecture. You will get: Quality optimized work 100% client satisfaction Fast delivery Suitable pricing Unlimited revisions Complete NDA & IP protection (project security is our top priority) Estimated delivery You will receive backend migration and ownership transfer, multiplayer and networking improvements, performance optimization, gameplay polish, scalable architecture, organized source code, and a solid foundation for future game mode expansions. Come inbox & I will share relevant Unity multiplayer, backend, and live-service portfolio projects. Let’s get started. Best regards, Sohaib Pasn Games

@Herculesz

Hi, taking over a live Unity mobile game with multiplayer and backend instability is usually less about feature work and more about isolating state ownership, failure points, and migration risk before touching gameplay. The real engineering risk here is moving a live 2D multiplayer system onto new infrastructure without introducing sync regressions, account/data inconsistencies, or store-update instability across iOS and Android. I’ve worked on production systems that required stepping into an existing codebase, tracing operational issues, and restructuring the parts that were blocking reliability. In your case, I’d treat the backend takeover and multiplayer path as the critical path, then polish gameplay and animation once the system is stable. I usually structure this in layers: current-state audit, service boundary mapping, migration plan, then staged replacement of the highest-risk backend paths first. I’d want clear separation between client gameplay logic, authoritative match state, player data, and platform-facing services. This kind of work needs production discipline, rollback paths, and observability, not temporary fixes. If useful, I can sketch the backend takeover plan and identify the highest-risk multiplayer flows first. Thanks, Hercules

@toriquldev123

Hello dear, Greetings from MD. Toriqul Islam! We are a dedicated Web Design & Development team with over 10+ years of industry experience. I’m Engineer Toriqul Islam, an experienced Computer Science & Engineering graduate from RUET. We specialize in building modern, scalable, and user-friendly digital solutions tailored to business needs. What I Offer We help businesses grow online by delivering: • Clean, modern, and responsive website designs • High-performance and scalable web applications • User-focused UI/UX for better engagement and conversion My Technical Expertise We work across a wide range of technologies, including: • Frontend: HTML5, CSS3, Bootstrap, JavaScript, jQuery, Angular, React • Backend: Node.js, PHP, Laravel, .NET, CodeIgniter, Ruby on Rails, Python • CMS & Platforms: WordPress • Database: MySQL, MongoDB • Mobile Development: React Native, Flutter, and more Why choose me? ✔️ Clean, optimized, and well-documented code ✔️ Reusable and scalable components ✔️ On-time delivery with complete requirement fulfillment We are confident in our ability to turn your ideas into a powerful digital product. Let’s discuss your project and make it a success. Looking forward to working with you! Best Regards, Md. Toriqul Islam

@sahildogra222

Hi Mate , I’ve carefully checked your requirements and really interested in this job. I’m working as a freelance graphic designer with U.S. and European teams. I’m offering best quality and highest performance at lowest price. I can complete your project on time and your will experience great satisfaction with me. I have rich experienced in App Store Optimization, Game Design, iPhone, Backend Development, Unity, Mobile App Development, Game Development, Unity 3D, Project Management and Game Testing. For more information about me, please refer to my portfolios. I’m ready to discuss your project and start immediately. Looking forward to hearing you back and discussing all details.. Eager to hear your feedback

@XRProConnect

Hi there, This project instantly caught my eye, so I had to reach out. The need for a professional, reliable Unity developer for backend takeover and game improvement is crystal clear. I specialize in Unity multiplayer systems, backend architecture, and mobile optimization. With my expertise, I can seamlessly handle the backend migration and multiplayer enhancements your project demands. My commitment to quick communication and a speedy turnaround makes me the perfect fit. Let me know if you are available for a quick chat! Regards, Aashiq

@osamak74

Hello, I understand this is a live iOS/Android Unity board game that needs a careful backend takeover, not a quick patch. Based on your description, the project is realistic, but it should be handled in phases: first audit the current Unity client, backend, multiplayer flow, build pipeline, and server dependencies, then migrate only what is necessary to your controlled infrastructure without disrupting existing users. I have 7 years of experience building and improving mobile apps, backend systems, APIs, database-driven platforms, and existing app enhancements. For this project, I would focus on stabilizing the multiplayer layer, restructuring the backend with secure APIs, proper data handling, logging, and scalable deployment, then updating the Unity integration so matchmaking, synchronization, player sessions, and game state handling are more reliable. I can also review the 2D gameplay with 3D token elements, optimize performance, fix crashes or lag, and prepare clean App Store / Google Play updates. For a realistic first phase, I suggest starting with a technical audit and migration plan, then backend replacement and multiplayer fixes. A fair initial budget would be $8 for the first discovery task within this platform limit, with the real implementation cost finalized after code/server review. I can start anytime and work full-time. I look forward to working with you. Regards, Osama

@DigitalNightOwl8

Hello there , Good evening! I’ve carefully checked your requirements and really interested in this job. I’m full stack node.js developer working at large-scale apps as a lead developer with U.S. and European teams. I’m offering best quality and highest performance at lowest price. I can complete your project on time and your will experience great satisfaction with me. I’m well versed in React/Redux, Angular JS, Node JS, Ruby on Rails, html/css as well as javascript and jquery. I have rich experienced in Project Management, Unity, iPhone, Game Design, Game Development, Backend Development, App Store Optimization, Game Testing, Unity 3D and Mobile App Development. For more information about me, please refer to my portfolios. I’m ready to discuss your project and start immediately. Looking forward to hearing you back and discussing all details.. Many thanks

@maxscender

I can help you take full control of your infrastructure and stabilize your multiplayer performance. My approach focuses on decoupling the Unity client from the current backend to ensure a clean migration to your own servers while maintaining data integrity. I will implement a robust state-synchronization model to resolve the existing connectivity lag and ensure reliable gameplay across different network conditions. For the frontend, I will profile the 2D/3D hybrid rendering to eliminate performance bottlenecks and refine the animation controllers for a high-end feel. By restructuring the backend first, we create a stable foundation for the upcoming game modes, ensuring the architecture is scalable and the codebase is maintainable for long-term growth.

@Aaleen110

I understand you need a Unity expert to overhaul your live mobile game, focusing on the backend, multiplayer improvements, and game expansion for both iOS and Android. I've successfully transitioned and optimized backend systems for live Unity multiplayer titles, increasing player retention by 15% in a previous project. My approach will involve a thorough audit of your current Unity backend architecture, identifying bottlenecks and implementing a more efficient server-authoritative model using Photon PUN for real-time multiplayer synchronization. For game expansion, I'll develop modular systems for new features, ensuring smooth integration with existing gameplay and optimizing asset loading and rendering for peak mobile performance across devices. What is the current state of your backend infrastructure and what specific multiplayer issues are you prioritizing for immediate improvement? Ready to start as soon as you confirm scope.

@craigd43

As an experienced Unity developer with a focus on both backend and game development, I am specifically equipped to tackle the full range of issues your mobile game presents. With substantial experience in restructuring and migrating backend systems, I have all the technical skills and strategic thinking necessary to re-engineer your game's infrastructure, ensuring security, scalability, and stability—all under your control. My robust abilities in PHP, Node.js, and C# help me swiftly navigate complex backend architectures. In working with me, you're not just gaining a coder; you’re partnering with an individual who commits passionately to producing top-notch results while respecting budgets and deadlines. My track record speaks for itself—I've published multiple apps on both the Apple App Store and Google Play Store among other accolades. So if you seek an accomplished professional who can leverage his vast expertise in Unity as well as impeccable Backend Development aptitude to transform your mobile game, let's connect and discuss how we could elevate your project further together!

@billybryan98

Hello there, I hope you are doing well. I am a seasoned Unity developer with strong mobile multiplayer and backend integration experience. I excel at taking over live projects, diagnosing backend bottlenecks, and delivering scalable, secure architectures for iOS and Android. I’ll map the current codebase, craft a migration plan to your own server environment, and implement robust, maintainable systems that reduce downtime and boost multiplayer reliability while polishing the game experience. In previous work I’ve built and stabilized mobile multiplayer systems, integrated authoritative server logic, optimized 2D gameplay with mixed 2D/3D assets, and migrated services to self-hosted or cloud-based backends with clean architecture and solid testing. I focus on long-term maintainability and smooth player experiences. I can handle the work based on my expertise and past experiences, delivering solid backend takeover, improved synchronization, and refined gameplay polish. I guarantee precise execution and reliable results. Please feel free to contact me so we can discuss more details. I am looking forward to the chance of working together. Best regards, Billy Bryan

@giffordbenm

Hi, I can start immediately. Senior Software Engineer, formerly at Vercel. I can take over your live Unity mobile game professionally, starting with backend restructuring, server migration, multiplayer reliability, and stability improvements before moving into gameplay polish and future game-mode expansion. I have experience working with existing production codebases, backend architecture, API design, real-time systems, mobile performance optimization, and scalable infrastructure. For this project, I would first audit the current Unity codebase, backend services, multiplayer flow, data models, matchmaking/session handling, authentication, server dependencies, crash logs, and App Store/Google Play update requirements. Then I’d create a migration plan that avoids breaking the live game while moving the infrastructure under your control. My approach would be to stabilize the current system first, replace fragile backend dependencies, improve multiplayer synchronization and reconnect handling, optimize mobile performance, fix priority bugs, and then plan the three new game modes as separate milestones. The result will be a more stable, scalable Unity mobile game with cleaner backend ownership, improved multiplayer reliability, better performance, and a maintainable foundation for future expansion. Quick question: what backend/multiplayer stack is the game currently using, such as Firebase, Photon, PlayFab, custom Node/PHP, or another service? Best regards, Benjamin

@filipradosav317

Hi, There. I have carefully reviewed your project and I am excited about the opportunity to work on improving the backend infrastructure and multiplayer functionality of your mobile game. With my extensive experience in Unity development, particularly in multiplayer systems and backend architecture, I am confident in my ability to tackle the challenges your project presents. I understand that your main priority is to replace and restructure the current backend system, ensuring improved stability, scalability, and multiplayer reliability. My expertise in backend integration and infrastructure migration will enable me to seamlessly execute this phase of the project while keeping long-term maintainability in mind. One question I have is: Have you already identified specific pain points in the current backend system that need immediate attention? I am committed to delivering polished and professional solutions that enhance gameplay, refine user experience, and optimize performance. I believe I can contribute to the future expansion of the game by seamlessly integrating new features and game modes into the existing ecosystem. Let's discuss this further. Thank you. Filip

@markw293

Hello, Mark, owner of metaverse creations here. I was particularly drawn to your project because of its multifaceted nature and the need for order amidst existing challenges. Having worked on various AI-powered games and backend projects alongside government agencies and private firms, I understand how to create intelligent systems that solve business problems at scale. My comprehensive skill set from server migration to optimal game development, underpinned by a problem-solving mindset, makes me an ideal partner. For me, the highest priority phase of this project will be to migrate your existing infrastructure onto a secure and manageable backend system. Years of experience working with scalable databases and server architecture like MySQL and SQLite means that no challenge is insurmountable for me when it comes to building a stronger foundation for your game's future development. As we look towards improving the game itself, I'll pay careful attention to gameplay polish, animations making sure the network remains reliable, and performance-oriented. Having built multiplayer driven 2D/3D games like yours before, I understand the unique dynamics it presents and I'm eager to improve gaming experience as well as draw a solid map for future expansion you have in mind. Let's chat more about why I'm the right fit for this demanding project in terms of timeline, cost, my approach toward backend migration and multiplayer improvements. Thanks!

@thaakirh8

This project perfectly matches my expertise and your vision for a professional, user-friendly focused on events. I am confident in delivering a seamless, efficient, and scalable solution tailored to your needs. With extensive industry experience beyond Freelancer, I prioritize clean design and smooth functionality. I welcome you to explore my portfolio for similar successful projects. Let’s discuss how I can bring your event website to life. I’m also happy to offer a free consultation to ensure everything aligns with your goals. Looking forward to collaborating with you to create an outstanding online presence.

@sjohn117

Hi, I am Sean, an AI & Full-Stack Developer with over 10 years of experience specializing in Unity development, particularly for mobile games. I understand you're looking for a senior Unity developer to address backend and multiplayer challenges while enhancing your 2D board game. This is a critical project that requires expertise in multiplayer systems, backend architecture, and game optimization. Having successfully managed similar projects, I recently overhauled a mobile game, ensuring its backend was stable and scalable, optimizing performance while seamlessly integrating additional features. I can apply a structured approach to replace your backend system, migrating to a secure and maintainable infrastructure. My focus will be on delivering clean code, thorough testing, and comprehensive documentation to ensure future scalability. I believe in polished execution and will prioritize improvements in gameplay and user experience. I can deliver the first milestone within one week, ensuring you receive quality work promptly. Could you provide more details on your current backend setup and any specific requirements for the migration? Thanks, Sean

@stPatrickMoloedi

I've recently worked on projects involving mobile game development, backend systems, multiplayer enhancements, and infrastructure optimization to deliver seamless user experiences and reliable gameplay functionalities. I can help you achieve a professionally polished mobile game with improved backend stability, enhanced multiplayer connectivity, and optimized performance. Success will be evident through a more engaging gameplay experience, smoother animations, and increased networking reliability for your users. Specifically, I noticed the urgent need for backend restructuring and infrastructure migration in your project description. My approach would focus on clear communication, structured execution, and proactive problem-solving to ensure a smooth transition to a more secure and scalable backend system. I may not have reviews yet, but your project will receive my full attention, commitment to detail, and dedication to reliable delivery. I'd be happy to discuss further how my expertise aligns with your project goals. Happy to share insights on backend takeover strategies to enhance your game's multiplayer functionality. Regards, Thabo

@KurtSiebritz

Hi, I have done a similar project before where I used Unity and AWS for backend infrastructure. I’m an experienced full-stack developer with strong expertise in Unity game development, multiplayer systems, backend architecture, and mobile optimization. Your project is very achievable within the listed budget and aligns well with my experience in Unity, multiplayer games, backend restructuring, and game optimization. I will deliver: • Replace and restructure backend system • Migrate game infrastructure to new backend environment • Improve gameplay, animations, and multiplayer connectivity • Optimize performance and stability • Integrate three additional game modes/features Recommended stack: • Unity • AWS • Photon Unity Networking • Firebase Estimated timeline: 6-8 weeks depending on final requirements and complexity. Regards, Kurt Siebritz