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Sara Suman

📍 Located in: India 🕐

Backend Engineer | Payments, Crypto & Scalable Systems | Java, Spring Boot, Kafka, AWS

👤 Freelancer
⭐ Zinner Level 1
💰 Pricing
Usual Hourly Rate: $15/hr
Interested in projects valued: $50 – $1,000
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Member since Apr 2026
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0 projects completed
Avg response: 152.3h

About

I’m a backend engineer with 2.5+ years of experience building scalable, secure, and high-performance systems, with a strong focus on payments, fintech, and crypto infrastructure.

I specialize in designing event-driven architectures and distributed systems that handle real-world complexity. In my current role, I’ve worked on systems processing 100K+ daily transactions, where accuracy, reliability, and fault tolerance are critical. I’ve built and maintained backend services using Java, Spring Boot, and Apache Kafka, ensuring smooth communication between microservices and consistent data flow across systems.

🛠️ What I Can Help You With
Backend development using Java & Spring Boot
Designing scalable microservices architectures
Building event-driven systems with Apache Kafka
Developing secure payment and fintech solutions
Creating REST APIs and integrating third-party services
Working with SQL, NoSQL, and DynamoDB databases
Deploying and managing applications on AWS (EC2, S3, IAM)
Setting up CI/CD pipelines and improving deployment workflows
Enhancing system observability, monitoring, and reliability

💡 My Approach
I focus on writing clean, maintainable code and building systems that are not only functional but also resilient and production-ready. I pay close attention to edge cases, failure handling, and data consistency, especially in financial systems where even small errors can have a big impact.

I believe in clear communication, transparency, and ownership. Whether it’s a small API or a complex distributed system, I approach every project with a mindset of delivering real business value, not just code.

📈 Why Work With Me
Experience with high-scale systems and real production challenges
Strong understanding of distributed systems and fault tolerance
Proven ability to improve system reliability and performance
Focus on secure and compliant solutions (PCI-DSS awareness)
Dedicated to delivering quality work on time

🤝 Let’s Build Something Great
If you’re looking for a backend engineer who can help you build reliable, scalable, and secure systems, I’d love to collaborate. 
 
 
 
 
 
 

 
 

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