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I’m rolling out a sizable update to a newly built social-media platform and my in-house team is at capacity. I need a seasoned backend developer who can jump into an existing codebase, pick up overflow tasks, and deliver production-ready solutions without hand-holding. The work will vary from week to week but typically involves: • Fixing and refactoring legacy endpoints • Designing and documenting new API routes • Optimising queries. Every contribution must be clearly commented so my frontend team can plug in with minimal back-and-forth. If you thrive on being part of a team and take pride In your work please bid. Our platform is built on the sngine social network software and heavily modified. It’s is built on php and design is css and .tpl files. We require some updates to our platform including: 1) user advertising module: to be updated with the user wallet. So a campaign will start running if the user has 50% of their campaign monthly budget in their wallet. It will still deducted as it does now on interaction however it is a feature we want. We will also add this notification when they are setting up add / campaigns that this is a requirement. Also to note the ads are still charged ppc or cpm as they have chosen just we require 50% of the budget to be I. Their wallet. 2) agency account type : this feature is to come but we want to offer a feature for digital agencies to manage all their clients pages and as campaigns from the one central access. We will also offer tierd account levels for agency partners and they will earn a % of the Gita spend of all their clients. More details to follow. This project is for 1) budget is $60 3)we also want to work on the algorithm for the content a user sees in their feed. We have set algorithm stack we want to use with a % for each and wed love to be able to tweak this at any point through the admin panel just by updating the % for each.
Project ID: 40462684
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158 freelancers are bidding on average $126 AUD for this job

Hello, I’m interested in supporting your backend development work on your Sngine-based social platform and assisting with the upcoming feature updates. I have experience working with PHP, MySQL, and heavily customized systems, and I’m comfortable stepping into existing codebases, refactoring legacy endpoints, and delivering clean, production-ready fixes without disrupting current functionality. For your advertising module update, I can implement the wallet condition so campaigns only activate when 50% of the monthly budget is funded, while preserving your existing PPC/CPM billing logic. I will also add clear notifications during campaign setup so users understand the requirement upfront. For the agency account system, I can help design the backend structure for multi-client management, role-based access, and scalable logic for future tiered accounts and revenue-sharing features. All changes will be properly documented and commented to ensure your frontend team can integrate everything smoothly with minimal back-and-forth. I can start immediately and work in phases based on your priorities. Warm regards, Harpreet Singh
$70 AUD in 5 days
9.5
9.5

Hi, this looks straightforward at first, but in my experience there’s usually a key detail that can cause issues later. I’ve handled similar projects before and can outline a practical approach for you. For similar work and case studies, feel free to check my profile: https://www.freelancer.com/u/microlent Let me know if you'd like me to walk you through the plan. ~ Rajesh
$140 AUD in 30 days
9.4
9.4

Hello, As a seasoned backend developer, I know the value of delivering production-ready solutions that require minimal adjustment for your team. My experience in fixing and refactoring legacy endpoints in a variety of coding languages will be instrumental to your project. Additionally, I’ve built clean, efficient API routes designing experience which will help structure any new developments. I have worked extensively in php, and with the sngine social network software that your platform is built on - so I know it inside-out. Great communication is key to the success of any project. I take pride in my work and ensure clear commenting for easier navigation for frontend teams. With this, they would seamlessly integrate their end thereby minimizing the need for lengthy back-and-forth discussions. The features you are looking to have: the user advertising module and the agency account type are well within my scope of expertise. I am confident of delivering them with optimized performance and in line with your specifications. Let my team turn your vision into a reality that exceeds your expectations. My offer for this project is $60 - a price that fairly aligns with my extensive experience and commitment to excellence. Thanks for considering me and I hope to hear from you soon! Thanks!
$130 AUD in 2 days
8.6
8.6

when the in-house team is tapped out the risk is PRs piling up and delaying the whole rollout. id take the backend tasks in php and mysql, get them done without stepping on what your team is mid-way through, and have the first batch ready in 2 to 3 days. can start right now. what does the update cover and how are you splitting the work?
$170 AUD in 7 days
8.6
8.6

Hi, I can handle the Sngine backend update for your advertising module and work comfortably inside heavily modified PHP/.tpl codebases. ✔ Strong PHP + MySQL backend experience ✔ Experience modifying social/community platforms ✔ Clean, documented code for frontend integration ✔ Comfortable with legacy endpoint refactoring and query optimization For Task #1, I will: • Update the advertising module to validate that users maintain at least 50% of the monthly campaign budget inside their wallet before campaigns can run • Keep existing PPC/CPM deduction logic unchanged • Add validation checks during campaign creation/edit flow • Add frontend notification/messaging explaining the wallet requirement • Test campaign activation, wallet validation, and interaction deductions thoroughly I understand this is a live platform, so changes will be implemented carefully without disrupting the existing ad system. Available to start immediately and complete within your $60 budget. Best regards, M. Rizwan LA
$70 AUD in 1 day
8.2
8.2

⭐⭐⭐⭐⭐ Experienced Backend Developer for Social Media Platform Updates ❇️ Hi My Friend, I hope you're doing well. I've reviewed your project details and see you're looking for a backend developer to enhance your social media platform. You don't need to look any further; Zohaib is here to help you! My team has successfully completed 50+ similar projects for backend development. I will dive into your existing codebase, fix legacy endpoints, design new API routes, and optimize queries to deliver efficient solutions. ➡️ Why Me? I can easily handle your backend development tasks as I have 5 years of experience in PHP, API design, and database optimization. My expertise includes fixing legacy code, designing new features, and ensuring clear documentation for smooth collaboration with your frontend team. I also have a strong grip on CSS and .tpl file management. ➡️ Let's have a quick chat to discuss your project in detail and let me show you samples of my previous work. Looking forward to discussing this with you in chat. ➡️ Skills & Experience: ✅ PHP Development ✅ API Design ✅ Query Optimization ✅ Legacy Code Refactoring ✅ Documentation ✅ Database Management ✅ CSS Styling ✅ .tpl File Handling ✅ Version Control (Git) ✅ Team Collaboration ✅ Debugging ✅ Problem Solving Waiting for your response! Best Regards, Zohaib
$150 AUD in 2 days
7.9
7.9

Hello Hi there, I understand you're launching a significant update to your newly built product and need a seasoned developer to ensure a smooth rollout. With 5+ years of full-stack experience, I specialize in delivering robust, scalable solutions and minimizing post-launch bugs. I'm confident I can help you achieve a successful and impactful update. Let's connect to discuss how I can contribute. Giáp Văn Hưng
$250 AUD in 7 days
6.8
6.8

Intercepting SocialEngine ad loops now... I reviewed your backend brief for the customized ad-delivery update, requiring a stateful 50% monthly budget wallet check across your PPC/CPM campaign engines. Failing to isolate your conditional wallet queries from your live interaction tracking scripts will cause severe MySQL table locking during peak traffic, so here is my exact technical plan for your platform: Stateful Wallet Interception: Dynamic Template Injection: Optimized Query Tracking: Budget & Timeline: I will deliver your fully commented PHP source files, updated MySQL schema definitions, and a step-by-step deployment reference sheet for a fixed price of $125 AUD within 48 hours.
$125 AUD in 7 days
6.9
6.9

Hi, I've worked extensively with PHP-based social platforms and modified open-source codebases like Sngine, so I can jump into your stack—PHP, CSS, .tpl templates—and start contributing immediately without ramp-up time. For the advertising module, I'll integrate wallet-balance checks into the campaign activation flow, enforcing the 50% budget threshold before ads go live while keeping your existing PPC/CPM billing logic intact, plus adding clear UI notifications during campaign setup. For the agency account type, I'll architect a role-based access layer that lets agencies manage multiple client pages and ad campaigns from a single dashboard with proper permission scoping. Every endpoint I touch will be cleanly commented and documented so your frontend team can integrate seamlessly.
$30 AUD in 1 day
6.7
6.7

Hello, I understand you need an experienced backend developer to step into your existing Sngine-based PHP social platform and support ongoing development work, including refactoring legacy endpoints, designing new API routes, optimizing database queries, and ensuring all changes are cleanly documented so your frontend team can integrate smoothly. The focus is on maintaining production stability while extending functionality in a heavily customized system. I will work directly within your existing PHP/Sngine codebase to fix and refactor current endpoints, implement new API routes with proper structure, and optimize MySQL queries for performance and scalability. For your advertising module, I will implement the wallet-based 50% budget requirement logic with proper validation, clear user notifications during campaign setup, and ensure existing PPC/CPM billing flows remain unaffected. I will also design a clean, extensible backend structure for the upcoming agency account system, enabling multi-client management and tiered revenue-sharing logic while keeping future expansion simple. You will receive well-commented, production-ready code, clear documentation of all changes, and consistent communication throughout development so your team can easily integrate frontend updates without friction. I am ready to start immediately and work collaboratively with your team to ensure stable rollout of each feature. Thanks, Asif
$250 AUD in 3 days
6.5
6.5

As an experienced full-stack developer with over a decade in the field, I've precisely the skills you need to give your social media platform the robust and efficient backend it deserves. My extensive expertise in PHP, along with my mastery over MySQL, makes me capable of swiftly diving into existing codebases, tackling and refining legacy endpoints and designing new API routes as per your specific requirements. Moreover, working on projects like Trading & Finance has trained me for accuracy and precision - necessary skills for optimizing queries and providing clean, documented codes. For your advertising module update, I am well-versed in handling wallet transactions and integrating campaign budget requirements. My ability to understand complex systems like agency accounts, combined with my proficiency in php/css, provides me with a solid foundation for implementing this feature seamlessly. Finally, my understanding of feed algorithm logistics will allow me to tweak your algorithm stack easily via the admin panel, granting your users the personalized content experience they deserve.
$50 AUD in 7 days
7.1
7.1

Hi there, I'm ready to dive into your sngine-based social platform and bring production-ready backend fixes and enhancements without hand-holding. I have solid experience refactoring legacy PHP endpoints, designing new API routes, and optimizing MySQL queries, and I can read your codebase quickly to deliver clear, commented changes. I'll implement the user advertising module to require 50% of monthly budget in the wallet for campaign start, with upfront user-facing notes, while keeping PPC/CPM deductions as they are; and I'll outline the changes in concise comments so the frontend team can wire it up fast. I'll also lay groundwork for the agency account type and tiered partner levels, and propose a clean API surface with thorough docs and tests to support future work, sticking to a pragmatic PHP/MySQL stack. Best regards,
$155 AUD in 10 days
6.1
6.1

Hello, I’ve reviewed your Sngine platform requirements and can help with both ongoing backend support and the immediate advertising module update. I have experience working with PHP-based social/community platforms, custom API logic, payment/wallet systems, and modifying legacy codebases while keeping changes production-safe and well documented. For the advertising update, I can implement the wallet validation logic so campaigns only activate when users hold at least 50% of the monthly campaign budget in their wallet, while preserving the current PPC/CPM deduction flow. I can also add the required frontend notification within the campaign setup process and ensure the logic integrates cleanly with your existing Sngine structure. I’m also comfortable working with .tpl templates, CSS updates, query optimization, and documenting backend changes clearly for frontend integration. I can start immediately and deliver the advertising module update quickly within your current budget scope.
$60 AUD in 1 day
6.4
6.4

Hi There! I specialize in backend development for PHP-based social platforms with 9+ years of experience working on Sngine, custom APIs, MySQL optimization, and modular feature upgrades. Here's how I can help: 1. Refactor Sngine backend endpoints & fix legacy PHP issues 2. Implement wallet-based ad rule (50% budget validation before campaign activation) 3. Build agency account system with client management + revenue share logic 4. Optimize MySQL queries and document all API changes for frontend integration Can you confirm if your current wallet system already supports balance locking/holds, and do you want agency tiers configurable from admin panel or hardcoded initially?
$200 AUD in 7 days
5.9
5.9

Hi there, I understand your platform is a heavily modified Sngine install using PHP, .tpl templates and MySQL; I’ll join your backend team to implement wallet-based ad logic and build agency account management with production-ready, well-commented changes. - Implement user-advertising wallet check: require 50% of monthly campaign budget in wallet before campaign activation; maintain existing PPC/CPM charging and add setup-time notification in .tpl and PHP flow - Build agency account type scaffolding: centralised agency dashboard, client page management, tiered partner levels, and percentage revenue share calculation stored in MySQL with migrations - Optimise legacy endpoints and slow queries, refactor controller methods and add inline comments so frontend can integrate with minimal back-and-forth - Risk/quality-control: staged deployment with backup checkpoint and post-deploy validation to allow rollback if issues appear Skills: ✅ Sngine ✅ PHP ✅ MySQL ✅ API route design ✅ Hosting/production deployment ✅ Query optimisation & hardening Certificates: ✅ Microsoft® Certified: MCSA | MCSE | MCT ✅ cPanel® & WHM Certified CWSA-2 I’m available to start immediately. Is this already running on a live production server and do you prefer direct fixes on production or a staged rollout? Price: $60 , Delivery: 1 day Best regards,
$60 AUD in 1 day
5.8
5.8

Hi, Your platform sounds like a strong long term project and I’d be happy to help your team handle the backend overflow efficiently. I have solid experience working with large PHP based platforms, API refactoring, MySQL optimization, and modifying heavily customized systems without disrupting existing functionality. The wallet integration for the advertising module is straightforward and can be implemented cleanly within your current campaign workflow while keeping PPC and CPM billing intact. I can also structure the logic and comments clearly so your frontend team can integrate updates with minimal back and forth. The future agency account system and adjustable feed algorithm setup are also smart additions for scalability and monetization. I’d be interested in supporting those phases as well after the first update is completed successfully. I focus on clean production ready code, proper documentation, and reliable communication throughout development. Best, Justin
$140 AUD in 7 days
5.9
5.9

Hello, You've mentioned the need for a seasoned backend developer to support your social media platform with tasks such as fixing and refactoring legacy endpoints, designing new API routes, and optimizing queries. My experience in backend development, particularly with PHP and CSS, makes me a suitable candidate for this project. For your project, my approach would involve diving into the existing codebase, understanding the requirements thoroughly, and delivering clean and well-commented solutions to ensure seamless integration with your frontend team. I have successfully completed similar projects in the past, and I am confident in my ability to contribute effectively to your platform. I would love to discuss this opportunity further and explore how I can add value to your team. To get a better sense of my skills, please visit my portfolio: https://www.freelancer.com/u/SajidaSaqira/SS-Technologies Best regards, Sajida Saqira
$80 AUD in 7 days
5.6
5.6

Hello every ad campaign that starts without wallet validation is a financial leak waiting to happen. I’ll plug that hole in your sngine platform today. I’ve worked on custom PHP platforms with wallet-based logic before. Adding a 50% balance check before a campaign goes live is a straightforward gate: I’ll modify the ad creation and scheduling flow to pull the user’s wallet balance, compare it to the monthly budget, and block activation with a clear notice if funds are short. The ad module will continue deducting on interaction as it does now, no change to the billing loop. I’ll also add the setup notification text. Clean, commented code your frontend team can read immediately. $60 fixed for this task works. I can have it tested and delivered within 24 hours. Send the repo access and the relevant file paths, and I’ll start immediately.
$60 AUD in 7 days
5.5
5.5

I see you're rolling out a sizable update to your social media platform and need backend support. With around 10 years of experience in PHP and MySQL, I can jump in to help enhance your platform's capabilities. I understand your main goal is to effectively implement this update while maintaining stability and user engagement. Some similar things I've built include a niche social networking app, a regional marketplace platform, and an internal tool for managing user interactions. Let’s make this update a success together! Could you please clarify the following questions to help me better understand the project? Q1: What specific features are you looking to enhance or add in this update? Q2: Are there any particular performance metrics or benchmarks you want to achieve? Q3: How do you plan to handle user feedback during and after the update?
$200 AUD in 3 days
6.0
6.0

Hello there, I am a backend developer with 8+ years of experience building and refactoring PHP/MySQL APIs, delivering production-ready solutions with clear, maintainable code and thorough documentation for frontend teams. I’ve tackled legacy endpoints, designed and documented new API routes, and optimized complex queries in large codebases, always commenting clearly so the frontend can plug in with minimal back-and-forth. I’m comfortable working from a running codebase, prioritizing reliability, performance, and clean handoffs, and I can adapt to changing week-to-week priorities as your platform evolves. I can handle the work independently based on my experience and past projects, keeping things simple, sharp, and on schedule. 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
$250 AUD in 2 days
5.2
5.2

Ulverstone, Australia
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