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Fiverr Pro
English
$
USD
I will build scalable distributed systems, saas microservices and web apps
Aunmoy Dey
About this gig
Need a scalable, secure, and production-ready backend for your SaaS? Ill design and build modern microservices that power your business reliably even under heavy traffic.
I specialize in crafting rock-solid systems that are fast, maintainable, and built for growth.
I offer:
Custom Golang/JS Development REST, gRPC, GraphQl APIs, event-driven microservices
Real-Time & Messaging Systems Kafka, RabbitMQ, WebSockets for live updates and async processing
Database Integration PostgreSQL, MySQL, MongoDB, Redis with optimized queries & indexing
Cloud Deployment & DevOps Docker, Kubernetes, Helm, Terraform, GitHub Actions
Performance Optimization Concurrency, memory tuning, load handling, observability (Prometheus, Grafana)
Security-First Approach OAuth2, JWT, API rate limiting, input sanitization
Special Projects PCI-compliant systems, proxy tools, LLM/AI integration, red-team tooling
Why Work With Me?
Proven experience with high-traffic SaaS platforms
Performance-first & security-focused development
Clean, idiomatic Go code for easy maintenance
whether launching or scaling your SaaS, Ill build a future-proof, high-performance backend to turn your idea into a scalable reality
Get to know Aunmoy Dey
Aunmoy Dey
Software Developer, Cloud, Microservices and Distributed Systems
- FromBangladesh
- Member sinceMay 2022
- Avg. response time1 hour
- Last delivery7 months
Languages
English, Hindi, Bengali
software Developer | Golang |TypeScript | Node JS | Python
I build scalable backend solutions optimizing APIs, microservices, and architectures for reliability and efficiency.
Core Skills:
Backend Development: Golang, Node.js, TypeScript, REST, gRPC, RPC, GraphQl
Cloud & DevOps: AWS, Kubernetes, Docker, CI/CD
Databases & Messaging: PostgreSQL, MongoDB, Redis, Kafka, RabbitMQ
Performance & Monitoring: Prometheus, Grafana, ELK
I focus on delivering robust, reliable, scalable well-architected solutions that meet business needs and scale effectively. Let’s discuss your project.
Other Software Development Services I Offer
FAQ
How do I get started?
Simply reach out to me with your project requirements, and I’ll provide a detailed plan, timeline, and quote. Once we agree on the scope, I’ll start working on your project immediately.
Can you help with API development and integration?
Yes, I specialize in building high-performance APIs (RESTful and gRPC) that are secure, scalable, and easy to integrate with frontend or third-party services. I also ensure proper documentation and versioning for your APIs.
What is your experience with message queues and event-driven systems?
I have worked extensively with message queues like Kafka and RabbitMQ to build event-driven architectures. These systems are ideal for decoupling services, ensuring reliable message delivery, and handling high-throughput workloads.
How do you handle system monitoring and performance optimization?
I use industry-standard tools like Prometheus, Grafana, and the ELK Stack to monitor system performance, track errors, and analyze logs. This ensures your system runs smoothly and any issues are identified and resolved quickly.
Can you work with existing systems or codebases?
Yes, I can! Whether you need to optimize an existing system, refactor code, or add new features, I can seamlessly integrate with your current setup. I follow clean architecture principles to ensure maintainability and scalability.
Can you handle large-scale, high-traffic systems?
Yes. I design scalable systems using microservices, cloud tools (AWS, Kubernetes), and message queues (Kafka, RabbitMQ). I also use monitoring tools like Prometheus and Grafana to ensure optimal performance under high traffic.
How do you ensure the security of the systems you build?
I implement authentication, encryption, input validation, and regular dependency updates to ensure robust security. I also conduct security audits if required.
Can you work with my existing tech stack or team?
Yes, I can integrate with your existing tech stack or team. I’m experienced in collaborating with cross-functional teams and adapting to your workflows.
