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Fiverr Pro
English
$
USD
I will fix bugs in your python, fastapi, django or golang backend
Shaahid H.
About this gig
Got a stubborn bug slowing down your project? I'll fix itfast.
I'm a software engineer with 2+ years of experience building and maintaining production systemsfrom real-time ad delivery pipelines to AI-powered SaaS platforms. I don't just patch issues; I find root causes and implement clean, maintainable solutions.
What I fix:
- Backend bugs in Python, Django, FastAPI, Golang
- API errors, integration failures, and data inconsistency
- Work with AI APIs (OpenAI, Gemini, DeepSeek, Grok, etc)
- Performance bottlenecks, slow queries, memory leaks
- Celery, RabbitMQ, and background task failures
- Redis, PostgreSQL, and database-related issues
- Authentication, authorization, and security vulnerabilities
Why me:
- 1500+ problems solved on competitive programming platformsI know how to debug systematically
- Production experience with real-time systems and high-traffic applications
- I document my fixes clearly so you understand what was changed and why
- 3 year+ professional experience
- Fixing complex production bug regularly
How it works:
- You share the issue and access (GitHub, error logs, etc.)
- I investigate, diagnose and provide a fix plan and solution
- I implement, test, and deliver a clean solution
Respect third-party rights
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Get to know Shaahid H.
Shaahid H.
Software Engineer, AI Integration and SaaS builder
- FromBangladesh
- Member sinceDec 2019
- Avg. response time1 hour
Languages
Bengali, English
Hi, I’m Shahid, a Backend Engineer specializing in Golang, FastAPI, and Django, focused on building scalable APIs and SaaS systems that perform under real-world load. I’ve worked on AI SaaS and ad-tech platforms, including migrating monoliths to microservices with 10× performance improvements, optimizing data pipelines, and scaling systems using Redis, RabbitMQ, and Celery. I help build, fix, and scale backend systems—from REST APIs to high-performance architectures, integrations, and database optimization—delivering fast, reliable, and production-ready solutions.
My Portfolio
FAQ
How do I get started?
Simply message me with your bug details before ordering so I can confirm I'm the right fit for your issue. Or place an order and provide the details in the requirements section.
What information do you need from me before starting?
Please provide: - A clear description of the bug or issue - Error logs or screenshots (if available) - Access to your code repository (GitHub, GitLab, etc.) - Steps to reproduce the issue - Any relevant API keys or environment details (if needed)
What programming languages and frameworks do you work with?
I specialize in: - Python: FastAPI, Django - Go: Golang - Databases: PostgreSQL, MySQL, Redis - Message Brokers: Celery, RabbitMQ - Others: REST APIs, gRPC, WebSocket
How long does it take to fix a bug?
It depends on complexity: - Simple bugs: 1–4 hours - Moderate issues: 4–12 hours - Complex/systemic bugs: 1–3 days
Do you work with existing codebases I didn't build?
Absolutely. I'm comfortable jumping into unfamiliar codebases, understanding the logic, and fixing issues efficiently.
Will you explain what caused the bug and how you fixed it?
Yes. I always provide a brief summary of: - The root cause of the bug - What changes were made - Testing steps I performed to ensure it's resolved
What if the bug isn't fixed after delivery?
I offer free revisions if the same issue persists after delivery. If new issues arise, we can discuss a separate order.
Do you work with live/production systems?
Yes, I have experience debugging live production systems. Let me know if it's a production environment so I can take extra precautions.
Can you fix frontend bugs?
I specialize in backend bugs. For frontend issues (HTML, CSS, React.js), I can handle minor fixes, but complex UI bugs are outside my primary focus.
Do you provide ongoing maintenance or support?
Yes. If you need regular bug fixes or maintenance, let's discuss a custom offer or monthly retainer arrangement.
