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Fiverr Pro
English
$
USD
I will build the the most efficient and robust system for you
Philip O
About this gig
If you need a backend that can handle high throughput, concurrency, and failure gracefully, you're in the right place.
I specialize in building reactive, functional, cloud-native systems in Scala using modern tools like Akka, Cats Effect, ZIO, and AWS.
What I can do for you
- Design and implement reactive microservices using Akka
- Build high-performance REST APIs (Akka HTTP / Play)
- Develop pure functional systems using Cats Effect or ZIO
- Implement fault-tolerant, concurrent workflows
- Integrate with AWS (Lambda, ECS, S3, DynamoDB, etc.)
- Optimize performance (latency, throughput, resource usage)
- Debug and refactor complex Scala codebases
- Implement messaging/event-driven systems
Get to know Philip O
Philip O
Senior Software Engineer
- FromUnited Kingdom
- Member sinceApr 2026
Languages
English, French, Yoruba
I am an application developer with several years of commercial experience working with a number of technologies connecting to numerous databases. I am English speaking, born and raised in London, England.
FAQ
Do you use Cats Effect or ZIO?
Yes—depending on your project needs. I can also help choose the right abstraction and structure your application properly.
Can you build highly concurrent systems?
Yes. I specialise in Akka/Cats Effect/ZIO based systems and functional concurrency models, designed to handle real-world load and failures.
Do you work with AWS?
Yes. I can design and integrate systems using AWS services like Lambda, ECS, S3, DynamoDB, and API Gateway. I can work with other platforms, but AWS is my preferred
Can you improve or fix an existing system?
Absolutely. I often help refactor or optimise complex Scala backends, especially those with performance or concurrency issues. I have been doing this as a day job for over 20 years
Do you help with architecture decisions?
Yes. I can design systems from scratch or review your current architecture for scalability and resilience.
What do you need before starting?
Project requirements Existing codebase (if any) Expected scale (users, traffic, etc.) Preferred stack (if decided) Current setup for deployment (if any)
