Senior Full-Stack Software Engineer (Backend-Focused) with 6+ years of experience building and operating production-grade financial systems.

I’ve worked on high-volume platforms processing thousands of daily transactions and supporting up to 700,000 users, with a strong focus on reliability, security, and scalability.

My core expertise is in Node.js and NestJS backend development, combined with AWS cloud infrastructure and Terraform-based Infrastructure as Code. I’ve designed and deployed ECS Fargate services, managed multi-environment infrastructures (staging, preprod, production), and implemented secure CI/CD pipelines using GitHub Actions and Bitbucket.

While my primary focus is backend architecture and distributed systems, I also have experience building React.js front-end applications, allowing me to contribute across the full stack when needed — from API design to frontend integration and performance optimization.

Backend & Infrastructure Expertise

• Financial transaction systems (standard, reverse, and conditional settlement flows)
• Crypto and exchange API integrations (wallets, deposits, withdrawals, reconciliation)
• Secure API design using HMAC request signing
• Infrastructure automation with Terraform on AWS
• ECS Fargate, ALB, and WAF-based security controls
• Redis-based idempotency, caching, and distributed locking
• MySQL schema design and performance optimization
• Observability, logging, and production troubleshooting

Frontend & Full-Stack Capabilities

• Building and integrating React.js applications with REST APIs
• Developing responsive dashboards and admin interfaces
• Implementing secure authentication flows and API consumption
• Collaborating across frontend/backend boundaries to deliver complete product features

I regularly review pull requests, help maintain engineering and architecture standards, and assist in onboarding junior developers into existing systems and infrastructure workflows.

I enjoy solving complex engineering problems, especially where security, distributed systems, and real-world financial constraints intersect.

I am a versatile full-stack developer proficient in frontend technologies such as React.js/Next.js Typescript, HTML/CSS, Javascript etc., backend frameworks including Django Python, Laravel PHP, and Node.js. Additionally, I possess hands-on experience with AWS services, deploying applications on EC2 servers, and utilizing various other AWS services. I am also adept in Digital Ocean services, deploying on Droplets or app platforms, and leveraging other Digital Ocean features. Furthermore, I am skilled in working with Django websockets, utilizing Celery for task queues, and have no issue working within a Docker environment. I am open to working flexible hours and collaborating across different time zones.