Unity Game Back-End & System Developer -- 2

@Jennycreation

Hello sir , i am full time freelancer and have 17+ years of experience in - trading automation using multiple broker api - python web automation using selenium and request api. - Software and Web development in asp.net c# webform, MVC, angular , javascript,sql server . - Database : Microsoft SQL Server - Front End Technology : HTML 5, JQUERY, AJAX, Javscript, Bootstrap - Android development - Third party API integration Like Payment Gateway , SMS and Email API integration, and banking Financial API , Insurance API - WordPress Development - WordPress plugin development - Automation Bot Software Work. Work on many Automation bot software and website scraping work. please contact me on private chat, we can discuss more about project and show you demo as well Thanks

@AnhTVc

Hi, I'm interested in your Game Backend & Systems Developer role. I have experience building scalable backend systems, cloud architectures, APIs, and real-time applications with a strong focus on security, data integrity, and performance. For game projects, I can help design and implement Firebase-based backend systems including Authentication, Firestore database architecture, Cloud Functions, Security Rules, cloud save, player profiles, progression systems, wallet/currency management, transaction history, reward systems, and cross-device synchronization. My approach is to keep critical logic server-side, implement proper validation to prevent client-side manipulation, optimize database operations, and build a backend architecture that can support future multiplayer expansion. My relevant experience includes: * Firebase Authentication, Firestore, Cloud Functions, Storage * Node.js, Python, FastAPI backend development * REST APIs, Webhooks, real-time synchronization * PostgreSQL, cloud infrastructure, Docker, Git/GitHub * AI and automation systems with secure data workflows I have worked on platforms requiring user management, payment/transaction logic, data tracking, and scalable backend services. I focus on clean architecture, documentation, and long-term maintainability. Availability: Flexible for ongoing collaboration. Rate: Open to discussing based on project scope and engagement model. Thank you

@luckyjagritiwari

Hello sir i have done lot of games in unity game engine and i have more then 7 years experience in unity game engine and i can do any type of games so please send me more details about your game project and i will give you daily updates well but i need daily communication if possible so i can do fast and good as you require.

@iimtpradeepdash

Cloud save with real-time sync and a secure wallet means the Firebase rules and Cloud Function triggers are the foundation here—not the Unity side. I’ve shipped production apps using Firebase Authentication, Firestore, Cloud Functions, and wallet systems (including one for a multiplayer quiz app under NDA, Node.js and Firebase backend, Unity/C# client). I can design your user profile, wallet, and save-system logic, with triggers for transaction logs and reward claims (anti-cheat and security baked in). Security and atomicity for currency is handled in Cloud Functions, not on the client. If push notifications are needed, FCM with device tokens can be wired fast. Is your current device sync purely Firestore, or does it use PlayFab/Mirror? Can start groundwork this week if you want to scope the wallet and progression flows first. Pradeep

@jaroslavcaprata

Hi, there. I have strong experience with Unity, C#, Firebase services, and backend architecture for mobile applications and game systems. I have worked on authentication systems, cloud synchronization, virtual currencies, transaction tracking, admin tools, and scalable database structures designed for long-term growth and security. My approach would be to build a clean and secure backend architecture using Firebase Authentication, Firestore, Cloud Functions, and Security Rules while focusing on data integrity and protection against client-side manipulation. I also have experience designing progression systems, reward mechanisms, cloud saves, and real-time synchronization across devices. Performance optimization, database cost control, and maintainable code structure are areas I pay close attention to. I am comfortable working with multiplayer-ready architectures and integrating additional technologies such as PlayFab, Photon, or custom backend services if needed in future stages. I would be glad to discuss your requirements further and review the project details under NDA if required. Thank you, Jaroslav Caprata

@tyagigravity

As a seasoned Unity Game and Mobile App Developer, with more than 9 years' experience in the field, I am uniquely qualified to handle this project. My expertise lies in everything from 2D/3D game development to multiplayer gaming solutions for diverse platforms like Android, iOS, WebGL, and PC, which makes me well-versed in what it takes to craft an exceptional game backend But that’s not all. I have a demonstrated track record of integrating backend services, monetization systems as well as advanced gameplay features. Moreover, my proficiency in Firebase (Authentication, Firestore Database, Security Rules), REST APIs and git version control melds perfectly with the skills you need on Firebase-cloud based backend for your game project. Over the years, I have built backend systems (using Firestore Database & Cloud Functions) for various projects - a few examples being user-authentication module, storing complex data structures, live-sync features across multiple devices or allowed server-to-server synchronizations and many more. All these experiences equip me to design scalable and maintainable backend systems that meet the needs of even the most demanding projects. Lastly, my possession of additional skillsets like Node.js coding expertise or an understanding of anti-cheat measures or securing wallet & transaction-based systems combined with my history of delivering production-grade applications imbue me confidence in providing you efficient and secure solutions.

@RajAbhisek

Your need for secure Firebase Auth, Firestore architecture, Cloud Functions, wallet/transaction systems, and anti-cheat data validation maps directly to what we build. We've delivered similar real-time Firebase + Node.js backends for gaming and fintech — authentication flows, progressive data saves, reward distribution, and server-side validation that prevents client manipulation. Happy to discuss the concept under NDA and scope backend milestones. Ping me to get started.

@waleedsheeraz06

Hello, I have strong experience with Unity, C#, and Firebase, including Authentication, Firestore, Cloud Functions, Security Rules, and scalable backend architecture. I can build secure account systems, cloud saves, player progression, wallet/transaction management, real-time synchronization, and optimized database structures with a focus on security and performance. I’m experienced with Git, REST APIs, and mobile game development, and I’m comfortable collaborating on multiplayer-ready architecture. I’d be happy to discuss your project, share relevant work, and sign an NDA if required. Looking forward to hearing from you.

@mengw3

Hi. I'm a backend engineer, and the systems this game needs, secure auth, cloud save, a currency wallet with clean transaction logging, and reward claims that can't be spoofed from the client, are exactly the kind of backend I build. The game concept doesn't change the engineering; wallet and reward integrity is where it lives or dies, so that's where I'd focus. My approach: Firebase Auth for secure accounts, Firestore modeled for player profiles, progression and cloud save with near-real-time sync across devices, and all the sensitive logic, wallet debits and credits, reward distribution, transaction history, in Cloud Functions so nothing trusts the client. Every currency move is server-validated and logged, rewards are idempotent so a replay can't double-claim, and the data is locked down with proper Firestore security rules. I've built this shape on Firebase and GCP with Node.js before, so it isn't a first attempt. You get a secure, documented backend: auth, cloud save, wallet, rewards and cross-device sync, with the server as the single source of truth. I can start right away and stand up the auth and wallet core first so you have something testable early.

@IvanR442

Hey , Good evening! I am professional mobile software engineer with skills including Google Cloud Platform, Android, Unity, Node.js, C# Programming, PlayFab, Java and Mobile App Development. Please contact me to discuss more regarding this project. Thanks

@vertechsolutions

Hello, You need a secure Unity backend with Firebase systems that prevent client-side manipulation and scale cleanly. I’ve spent the last 4 years solving exactly this type of problem, building C# Programming driven Unity backends with Node.js support where needed. I will set up Authentication, Firestore structure, Cloud Functions, security rules, cloud save, wallet logic, sync flows, transaction logs, and anti-cheat focused validation. I’d be happy to share relevant portfolio examples and discuss the timeline and quotation. Best regards, Ribal www.freelancer.com/u/vertechsolutions

@Anika1802

Hey! My strong proficiency in backend development, particularly with Unity and C#, will ensure I can effectively implement critical aspects like secure user authentication, account management, cloud save functionality, player profiles, real-time data synchronization, and more. Furthermore, my extensive experience with Firebase including its Firestore Database, Authentication system, Cloud Functions, Storage, and Security Rules will prove instrumental in designing scalable database architecture that functions seamlessly across devices. One of my key differentiators is my ability to think holistically about a project's requirements. I will not only help build the functionalities detailed so far but also consider multiplayer-ready architecture for future adaptability. Additionally, my familiarity with REST APIs, Git/GitHub version control and mobile game development makes me an ideal fit for your project as well as offering an added advantage for the delivery of optimized database reads/writes and overall performance improvement. Trust me to deliver timely results without compromising on data integrity or security. Allow me to leverage this breadth of expertise to create a solid foundation for your game's backend and systems. Count on my dedication to execute efficiently while keeping you updated at every stage. Let's sign that NDA and get started!

@nizarjilani

As an experienced Unity game developer who's passionate about building clean Unity setups, gameplay systems, and optimized assets, I would be a perfect fit for your project. My strength in combining development with art will not only contribute to the functionality of your game but also enhance its visual appeal. I have a strong grip on Firebase, including Authentication, Firestore Database, Cloud Functions, Security Rules, Storage and more which are specifically required for this project. Additionally, I have had prior experience developing backend systems and implementing features like secure user authentication, database synchronization on multiple devices, transaction logging, and reward distribution systems among others. I have also worked on multiplayer architectures that could make future collaboration smoother for us. Moreover, apart from being able to develop backend systems effectively, I am also equipped to bring your vision to life by creating low-poly 3D environments, props and modular kits efficiently. My ability to mesh technicality with artistry makes me ready to take on all levels of your game's production challenges and deliver practical results efficiently. Let's create a game that not only plays excellently but also looks incredible!

@eternitech

Eternitech is excited about the opportunity to work on your Unity Game Backend & System Development project. With over 20 years of experience and a dedicated team of 100+ developers, we pride ourselves on delivering high-quality, scalable solutions. Our expertise with Unity, Firebase, and secure user authentication aligns seamlessly with your project requirements. Given the complexity and need for quality, we foresee an initial development timeline of 8-12 weeks to ensure robust and secure implementation. Let's schedule a meeting to discuss project specifics and finalize the scope.

@usmang276

I understand you need a secure, scalable Unity + Firebase backend that supports authentication, cloud saves, player progression, wallet management, and future multiplayer expansion. ★★★★ I will build a reliable backend focused on security, performance, and scalable architecture for long-term game development. ★★★★ I have experience with Unity, C#, Firebase Authentication, Firestore, Cloud Functions, Firebase Storage, REST APIs, and Git. My focus is on designing maintainable backend systems that protect game data, optimize database usage, and support future feature growth. ⚜ Secure user authentication and account management ⚜ Cloud save with cross-device synchronization ⚜ Player profiles, progression, and reward systems ⚜ Secure wallet, transaction logs, and history tracking ⚜ Firestore architecture with optimized reads/writes ⚜ Cloud Functions, Security Rules, and anti-tampering measures ⚜ Push notification integration and REST API support ⚜ Multiplayer-ready backend architecture for future expansion I can share relevant backend work and explain my role in previous projects during our discussion. I'm available to start immediately and can work on either an hourly or fixed-price basis depending on the project scope. I'd be happy to discuss your architecture, sign an NDA if required, and review the project requirements in detail. Warm Regards, Usman

@warrick1718

This project immediately caught my attention because it is exactly the type of work I do best. Your need for secure user authentication, cloud save functionality, and scalable Firebase database architecture aligns perfectly with my expertise in creating clean, professional, and user-friendly systems. While I am new to freelancer, I have tons of experience and have done other projects off site, including developing backend logic using Firebase Cloud Functions and implementing real-time data synchronization. If this sounds like what you're looking for I'd love to hear more about your project. Regards, Warrick Van Eeden

@tatumm17

I can design and maintain a secure, scalable backend for your Unity game using Firebase, covering auth, cloud save, player progression, wallet/currency systems, and real-time sync across devices with strong anti-cheat measures. I’ve shipped mobile titles using Unity, C#, Firestore, Cloud Functions, and Firebase Security Rules, including secure wallets, transaction logs, reward pipelines, and push notifications, all under Git workflows and production constraints. I propose starting with a review of your current architecture, then defining data models, security rules, and core systems in phases. Please share your portfolio link expectations, timeline, and budget so we can align. Regards

@Glexy111

hi, i have seen your are looking Unity backend developer working in Unity, Firebase and C# i am having 4 years of experienced as game backend developer and i will work according to your user authentication, cloud save, player progression, wallet system, Firebase database, and backend security. pls share more details of your project. looking forward to your response. thanks.

@RyanF172

You're looking to build and maintain a robust backend for your game project using Unity and Firebase. I understand the importance of secure user authentication and real-time data synchronization, especially in a gaming context where performance and security are crucial. To tackle this project, I'd focus on designing a scalable Firebase database architecture that ensures data integrity while implementing secure wallet and transaction systems. By creating efficient backend logic and optimizing database performance, I can help ensure a smooth gaming experience across devices. I have strong skills in Unity and C#, along with hands-on experience in Firebase Authentication, Firestore, and Cloud Functions. I'll ensure clear communication and include revisions throughout the process to align with your vision. Even if you don't hire me, the worst that will happen is that you'll end with a free consultation, so let's chat about your project goals and any specific features you're considering. Regards, Ryan