I will build scalable golang microservices with grpc, graphql, and rest apis


Level 2
About this gig
High-Performance GoLang Microservices & APIs
In 2026, speed is a competitive advantage. I am an MS in Data Engineering (Topper) and a Level 2 Seller with 100+ projects delivered. I build enterprise-grade GoLang systems designed for extreme concurrency and sub-millisecond latency.
What I deliver:
- Scalable Microservices: Built with Gin, Echo, or Fiber for maximum throughput.
- gRPC & Protobuf: Blazing fast internal communication (10x faster than REST).
- REST or GraphQL APIs: Flexible, type-safe endpoints for modern frontends.
- Database Excellence: Optimized integration with PostgreSQL, MongoDB, or Redis.
- Cloud Ready: Fully Dockerized services ready for AWS, GCP, or Kubernetes.
- Clean Code: Industrial-standard project structure following SOLID principles.
Why choose me? As a Data Engineering specialist, I don't just "write code", I architect systems that handle massive data loads without breaking. You get code that is version-controlled, documented, and production-ready.
Please message me to discuss your architecture before placing an order!
Get to know Nabeel Khan
Senior Software and Data Engineer
Level 2
- FromPakistan
- Member sinceApr 2020
- Avg. response time1 hour
- Last delivery4 months
Languages
Urdu, Arabic, English, Spanish, French, German
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FAQ
Why should I choose GoLang over Python or Node.js for my backend?
Go is a compiled language, meaning it's significantly faster than interpreted languages like Python. It’s designed for high concurrency using "Goroutines," allowing it to handle thousands of requests per second with much lower memory
When should I use gRPC instead of REST?
Use gRPC for internal service-to-service communication. It uses binary serialization (Protobuf), which is up to 10x faster than JSON. It’s the gold standard for high-performance microservices.
Can you implement a GraphQL API?
Yes. GraphQL is ideal for frontends needing flexible data. I build Go-based GraphQL servers that allow your app to fetch exactly what it needs in one request, eliminating over-fetching.
Do you provide the .proto files for gRPC?
Absolutely. All gRPC orders include the service definitions (.proto files) and generated client stubs in Go or your preferred language to ensure seamless integration across your stack.
What project structure do you follow?
I follow the "Golang Standards" layout. This ensures your code is modular, testable, and follows SOLID principles, making it easy for your team to maintain and scale in the future.
How do you handle database concurrency?
I use Go’s native connection pooling and implement proper mutexes or channel-based synchronization. This prevents data races and ensures thread safety even under extreme traffic loads.
Is the code Docker-ready?
Yes. Standard and Premium packages include a professional Dockerfile and docker-compose.yaml. Your services will be ready for instant deployment to AWS, GCP, or Kubernetes.
How do you handle errors in Go?
I use idiomatic Go error handling (no silent crashes). Every potential failure is checked and returned, ensuring your system is resilient and easy to debug in a production environment.
Can you integrate with my existing frontend?
Yes. Whether you use React, Vue, or mobile, I provide full API documentation (Swagger/OpenAPI or GraphQL Playground) to ensure your frontend team can connect to the backend effortlessly.
Do you offer performance optimization?
Yes. As an MS Data Engineer, I use pprof profiling and memory analysis to find bottlenecks in your existing Go code, optimizing throughput and reducing server costs.
8 reviews for this Gig
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Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
Sort By
L 
lordacid

United States
Ongoing collaborationNabeel continues to do high quality, well documented work.
$100-$200
Price
4 days
Duration
I 
Seller's Response
Helpful?D dev_prod

United States
Ongoing collaborationI'm extremely satisfied with Nabeel's professional service and consistent excellence. He approaches projects with expertise and delivers results that meet the highest quality standards. His communication is clear and professional, making collaboration efficient and productive. The reliability he provides...
$50
Price
1 day
Duration
I 
Seller's Response
Helpful?D dev_prod

United States
Ongoing collaborationNabeel's work reflects a level of professionalism and expertise that is truly exceptional. He consistently delivers high quality results while maintaining clear and effective communication throughout each project. His attention to detail ensures that every deliverable meets the highest standards, and...
$50
Price
1 day
Duration
Helpful?D dev_prod

United States
Ongoing collaborationI've had the pleasure of collaborating with Nabeel multiple times, and each experience has reinforced my confidence in his abilities. His technical expertise is matched by his professional approach and dedication to client success. He communicates effectively, provides timely updates, and delivers work...
$50
Price
2 days
Duration
I 
Seller's Response
Helpful?D dev_prod

United States
Ongoing collaborationWorking with Nabeel has been one of the most positive professional experiences I've had. His expertise shines through in every project, and his commitment to quality is unwavering. He maintains excellent communication, keeping me informed at every stage while respecting my time. The work he delivers...
$50
Price
1 day
Duration
I 
Seller's Response
Helpful?
8 reviews for this Gig
| (8) | ||
| (0) | ||
| (0) | ||
| (0) | ||
| (0) |
Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
Sort By
L 
lordacid

United States
Ongoing collaborationNabeel continues to do high quality, well documented work.
$100-$200
Price
4 days
Duration
I 
Seller's Response
Helpful?D dev_prod

United States
Ongoing collaborationI'm extremely satisfied with Nabeel's professional service and consistent excellence. He approaches projects with expertise and delivers results that meet the highest quality standards. His communication is clear and professional, making collaboration efficient and productive. The reliability he provides...
$50
Price
1 day
Duration
I 
Seller's Response
Helpful?D dev_prod

United States
Ongoing collaborationNabeel's work reflects a level of professionalism and expertise that is truly exceptional. He consistently delivers high quality results while maintaining clear and effective communication throughout each project. His attention to detail ensures that every deliverable meets the highest standards, and...
$50
Price
1 day
Duration
Helpful?D dev_prod

United States
Ongoing collaborationI've had the pleasure of collaborating with Nabeel multiple times, and each experience has reinforced my confidence in his abilities. His technical expertise is matched by his professional approach and dedication to client success. He communicates effectively, provides timely updates, and delivers work...
$50
Price
2 days
Duration
I 
Seller's Response
Helpful?D dev_prod

United States
Ongoing collaborationWorking with Nabeel has been one of the most positive professional experiences I've had. His expertise shines through in every project, and his commitment to quality is unwavering. He maintains excellent communication, keeping me informed at every stage while respecting my time. The work he delivers...
$50
Price
1 day
Duration
I 
Seller's Response
Helpful?
