Backend Engineer with experience building secure, scalable, and low-latency systems—primarily in fintech and insurance domains where correctness and reliability are critical.
I specialize in designing idempotent APIs, event-driven architectures, and high-throughput data systems that handle real-world scale without compromising performance.
- 🔧 Backend-focused engineer with strong system design fundamentals
- 💳 Experienced in fintech systems (payments, authentication, fraud flows)
- ⚡ Build low-latency APIs (~150ms) and scalable distributed services
- 📦 Work with event-driven systems using Kafka & RabbitMQ
- 🛠 Strong in async processing, caching, and system optimization
- ☁️ Hands-on with AWS, Docker, CI/CD pipelines
- 🤖 Actively leveraging AI tools for developer productivity
- Node.js, FastAPI, Django
- REST APIs, Async workers, Background jobs
- Kafka
- RabbitMQ
- Celery
- ScyllaDB
- MySQL
- PostgreSQL
- MongoDB
- Redis (high-scale caching, session handling)
- React, TypeScript, Tailwind
- Docker, AWS (EC2, S3, IAM)
- CI/CD pipelines
- Nginx, Git
- GitHub Copilot
- ChatGPT
- Cursor
- Claude
- 💳 Idempotent payment systems (prevent duplicate transactions)
- 🔁 Event-driven architectures for fraud detection & async workflows
- ⚡ Low-latency backend services for high-frequency systems
- 📊 High-scale data pipelines
- 🔄 Database migration & automation tools
- 🔐 Secure authentication systems (OTP / 2FA)
- ⚡ Reduced API latency by 35% using optimized backend design
- 📈 Built systems handling 50K+ daily users with Redis scaling
- 🔄 Processed 1M+ async jobs/month using Celery + RabbitMQ
- 🚀 Improved deployment efficiency by 40% using Docker & AWS
- 💳 Designed secure financial data flows with 99.9% uptime
- ✔️ Design for scale first, optimize later
- ✔️ Ensure idempotency & correctness in financial systems
- ✔️ Prefer async + queue-based processing over blocking workflows
- ✔️ Write clean, testable, and maintainable code
- ✔️ Automate everything possible
- Distributed system design
- Event-driven microservices
- Fintech-grade reliability engineering
- AI-assisted development workflows
- 📧 Email: aashujain095@gmail.com
I enjoy solving complex backend problems where performance, scale, and correctness intersect—especially in systems where one bug can cost real money.