Browse categories
Explore
Fiverr Pro
English
$
USD
I will do unity script writing, bug fixing and sdk integration
Haris Abdullah
Level 2
1 order in queue
5.0
5.0
What people loved about this freelancer
omegafine
United States
Great experience working with this developer. He identified and resolved issues quickly, including security concerns, and made sure everything was functioning...
jessemarciniak
United States
I had a very tricky problem with my Unity build. This is the second time I have booked Harris and thought his productiveness and help with my project was timely,...
omegafine
United States
Delivered the payroll dashboard as requested and implemented the core system logic connecting quote → account → QC → payroll. Communication was responsive and...
omegafine
United States
Great experience working together. He was responsive, followed instructions well, and made the necessary adjustments to get everything aligned with my system....
About this gig
Need help writing Unity scripts or integrating SDKs like Firebase, PlayFab, AdMob, or AppLovin?
You're in the right place I offer professional Unity C# scripting and third-party SDK integration for mobile, PC, WebGL, and multiplayer games.
What I Offer:
- Custom Unity C#: ScriptsGame mechanics, UI/UX logic, character controllers, animations, AI, and more.
- Bug Fixing & Troubleshooting: Fix build crashes, console errors, or broken gameplay systems.
- Performance Optimization: Refactor inefficient code and reduce lag or frame drops.
- Multiplayer Integration: Add or fix real-time features using Photon, Fusion, or Mirror.
SDK & API Integration:
- Firebase (Auth, Firestore, Analytics, Realtime DB)
- PlayFab (Player data, leaderboards, cloud scripts)
- Ad Networks: AdMob, Unity Ads, AppLovin, IronSource, etc.
- Analytics & Backend APIs: Google Analytics, REST APIs, OneSignal, etc
Message me now with your project details. Whether it's scripting or integrating Firebase or PlayFab, I'll deliver exactly what your Unity project needs.
Maintaining communication and delivering the highest quality is my top priority. Your satisfaction is 100% guaranteed.
Get to know Haris Abdullah
Haris Abdullah
Unity Developer, AI App, Vibe Coding Expert
Level 2
- FromPakistan
- Member sinceJan 2020
- Avg. response time1 hour
- Last deliveryabout 13 hours
Languages
Urdu, English
Hello! I'm Haris Abdullah.
I'm a full-stack developer with 5+ years of experience building games and AI-powered applications. My background spans Unity game development, AI mobile app development, and vibe-coded web and mobile apps using tools like Lovable, Base44, Bolt, and Replit.
I started as a Unity developer crafting multiplayer games and, over time, expanded into the AI development space, building, fixing, and optimising AI-generated applications for startups, founders, and creators who want polished, working products fast.
Let's build something great together. Feel free to reach out!
My Portfolio
Other Game Development Services I Offer
FAQ
What do I need to provide before placing an order?
To ensure the best results, please provide a detailed description of what you need, including any references, existing scripts, or specific functionalities you want in your Unity script. If you’re unsure, feel free to message me, and I’ll guide you through the process!
Can you fix bugs in my existing Unity script?
Yes! I specialize in fixing Unity script issues, whether they’re minor glitches or major game-breaking bugs. I’ll analyze the problem, optimize your code, and ensure everything runs smoothly.
Can you help with multiplayer features
Absolutely! I can create or fix multiplayer features using Photon, Mirror, or custom networking solutions.
Reviews
14 reviews for this Gig
| (14) | ||
| (0) | ||
| (0) | ||
| (0) | ||
| (0) |
Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
Sort By
Most relevant
O omegafine
Repeat Client
United States
Great experience working with this developer. He identified and resolved issues quickly, including security concerns, and made sure everything was functioning properly. Communication was clear, and he followed through on fixes without needing constant direction. The work was delivered clean, bug-free,...
$100-$200
Price
5 days
Duration
H 
Seller's Response
Helpful?J 
jessemarciniak
Repeat Client
United States
I had a very tricky problem with my Unity build. This is the second time I have booked Harris and thought his productiveness and help with my project was timely, professional, friendly, and on time! Which is exactly what you want.
$50-$100
Price
13 days
Duration
H Seller's Response
Helpful?O omegafine
Repeat Client
United States
Delivered the payroll dashboard as requested and implemented the core system logic connecting quote → account → QC → payroll. Communication was responsive and he was willing to make adjustments as needed. We are continuing with further testing on purchase flows and full end-to-end validation, and he...
$100-$200
Price
2 weeks
Duration
Helpful?O omegafine
Repeat Client
United States
Great experience working together. He was responsive, followed instructions well, and made the necessary adjustments to get everything aligned with my system. He stayed patient through revisions and ensured the functionality matched what was required. Final result came out solid and working as expected....
$100-$200
Price
7 weeks
Duration
H Seller's Response
Helpful?G 
gtx788
Netherlands
great job!
$200-$400
Price
5 days
Duration
H Seller's Response
Helpful?
Reviews
14 reviews for this Gig
| (14) | ||
| (0) | ||
| (0) | ||
| (0) | ||
| (0) |
Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
Sort By
Most relevant
O omegafine
Repeat Client
United States
Great experience working with this developer. He identified and resolved issues quickly, including security concerns, and made sure everything was functioning properly. Communication was clear, and he followed through on fixes without needing constant direction. The work was delivered clean, bug-free,...
$100-$200
Price
5 days
Duration
H Seller's Response
Helpful?J jessemarciniak
Repeat Client
United States
I had a very tricky problem with my Unity build. This is the second time I have booked Harris and thought his productiveness and help with my project was timely, professional, friendly, and on time! Which is exactly what you want.
$50-$100
Price
13 days
Duration
H Seller's Response
Helpful?O omegafine
Repeat Client
United States
Delivered the payroll dashboard as requested and implemented the core system logic connecting quote → account → QC → payroll. Communication was responsive and he was willing to make adjustments as needed. We are continuing with further testing on purchase flows and full end-to-end validation, and he...
$100-$200
Price
2 weeks
Duration
Helpful?O omegafine
Repeat Client
United States
Great experience working together. He was responsive, followed instructions well, and made the necessary adjustments to get everything aligned with my system. He stayed patient through revisions and ensured the functionality matched what was required. Final result came out solid and working as expected....
$100-$200
Price
7 weeks
Duration
H Seller's Response
Helpful?G gtx788
Netherlands
great job!
$200-$400
Price
5 days
Duration
H Seller's Response
Helpful?
