What backend technologies does Ramesh specialize in?

Ramesh specializes in Node.js with Express.js, FastAPI with Python, and Django for backend development. He designs PostgreSQL schemas, implements Redis caching, builds Celery task queues, and architects microservices systems.

Can Ramesh handle high-traffic backend systems?

Yes. Ramesh has built production systems handling high-concurrency workloads. He implements caching strategies (Redis), async processing (Celery), database indexing, and load-optimized API design — consistently achieving 25–35% performance improvements.

What is Ramesh's approach to backend security?

Ramesh implements JWT and OAuth 2.0 authentication, RBAC authorization, CSRF protection, secure session management, SQL injection prevention, and HTTPS enforcement. He follows OWASP security standards in all production systems.

Available for Hire — Remote (GMT / UK Timezone)

Senior Backend Engineer
for Hire

Node.js & FastAPI · Django & Python · PostgreSQL · Microservices

I'm Ramesh Kumar Das — a Senior Backend Engineer with 6+ years of production experience designing, building, and scaling high-performance backend systems, distributed APIs, and microservices architectures. I specialize in Node.js, FastAPI, Django, and PostgreSQL, delivering backend systems that are secure, fast, and production-hardened. I have consistently delivered measurable results: 35% faster APIs, 30% better database performance, 25% lower server load, and 40% faster deployments across real production systems. If you need a backend engineer who can architect and own your entire server infrastructure — I'm the right hire.

Backend Engineer Node.js / FastAPI Django / Python Microservices PostgreSQL London / UK Focus 6+ Years

💬WhatsApp Me ✉Send Email ↓Download CV ⬡View Portfolio

Years Experience

35%

Avg. API Speed Gain

30%

DB Query Improvement

40%

Faster CI/CD

Backend Engineering Stack

Production-proven technologies for high-performance, scalable backend systems

Backend Frameworks & Languages

Node.jsExpress.jsFastAPIDjangoDjango REST FrameworkPython3TypeScriptJavaScript

API Architecture & Patterns

REST APIsGraphQLWebSocketsMicroservicesEvent-Driven ArchitectureAsync ProgrammingCelery Task QueuesApache Kafka

Databases & Performance

PostgreSQLMySQLMongoDBRedisPrisma ORMQuery OptimizationIndexingConnection Pooling

Security & Auth

JWTOAuth 2.0Auth0RBACCSRF ProtectionSession ManagementRate LimitingAPI Security

Cloud, DevOps & Infra

DockerDocker ComposeAWS EC2/S3/LambdaNginxGitHub ActionsCI/CDVPS DeploymentSentry

Backend Engineering Services

What I can design, build, and optimize for your engineering team

⚡ High-Performance REST API Development

Designing and building production-grade REST APIs with Node.js, FastAPI, and Django — optimized for low latency, high throughput, proper versioning, rate limiting, and comprehensive documentation.

🏗️ Microservices Architecture

Breaking monolithic systems into scalable, independently deployable microservices. Service discovery, inter-service communication, API gateways, event-driven messaging with Kafka, and Docker orchestration.

🗄️ Database Design & Optimization

PostgreSQL and MongoDB schema design, query optimization with proper indexing, connection pooling, Redis caching layers, and data migration strategies. Consistently achieving 25–30% query performance gains.

🔒 Backend Security Engineering

Implementing JWT and OAuth 2.0 auth flows, RBAC systems, CSRF protection, SQL injection prevention, API rate limiting, and secure session management following OWASP standards.

⏱️ Async & Background Processing

Celery task queues with Redis brokers, WebSocket real-time systems, async Python/Node.js programming, and event-driven architectures for handling concurrent workloads without blocking the main thread.

☁️ Backend Deployment & DevOps

Docker containerization, docker-compose orchestration, CI/CD pipelines with GitHub Actions, AWS deployment (EC2, S3, Lambda), Nginx reverse proxy configuration, and production monitoring with Sentry.

Work Experience

6+ years building production-grade backend systems for real businesses

Senior Backend Engineer

Kliky AI

2024 – Present

WinstaAI Backend Infrastructure (Kuwait)

Designing and owning the entire backend architecture for a production AI SaaS platform with microservices, async task processing, and third-party API integrations.

Architected FastAPI + Django microservices backend with async workflows, REST APIs, and event-driven task queues
Built high-traffic API systems supporting real users with JWT auth, RBAC, rate limiting, and payment gateway integration (Stripe, PayPal)
Designed PostgreSQL database schemas for complex relational data with optimized query performance
Deployed services on AWS + Docker with automated CI/CD, Nginx reverse proxy, and Sentry monitoring

Backend Developer

AJATH INFO TECH PVT. LTD.

2021 – 2023

Dibbly AI & Paperport (India)

Built scalable backend systems using Node.js, Express.js, FastAPI, and Django — improved API response time by 35%
Implemented microservices architecture improving system scalability and modularity for large-scale production applications
Designed and optimized PostgreSQL and MySQL schemas — reduced query execution time by 30% using indexing and query tuning
Deployed with Docker and CI/CD pipelines — reduced deployment time by 40%
Built real-time WebSocket systems with Redis — improved data delivery speed by 25%
Developed async background processing with Celery and Redis task queues for heavy workloads

Backend Developer

SARAJ SYSTEM PVT. LTD.

2019 – 2021

Khantailor eCommerce & PathHub Medical Platform (India)

Developed and maintained REST APIs using Node.js, Express.js, and Django supporting multiple business modules
Designed scalable database architectures (MySQL, PostgreSQL) — improved query performance by 25%
Implemented JWT and OAuth 2.0 auth systems with secure session management for HIPAA-focused medical platform
Optimized API latency by 20–30% through code refactoring, query optimization, and Redis caching

Frequently Asked Questions

Common questions from engineering managers and CTOs looking to hire backend engineers

What is your preferred backend stack?

My primary stack is FastAPI (Python) or Node.js/Express.js for APIs, PostgreSQL for relational databases, Redis for caching and queues, and Docker for containerization. I also have deep experience with Django and can adapt to any stack your team uses.

Can you handle both database design and API development?

Yes. I do complete backend ownership — from designing the PostgreSQL/MongoDB schema, to building the API layer, implementing auth and security, setting up caching with Redis, and deploying via Docker and CI/CD. I am a senior-level engineer who can own the entire backend independently.

How do you approach performance optimization?

I start with profiling to identify bottlenecks, then apply: database query optimization and indexing, Redis caching for frequent reads, async programming to avoid blocking, Celery for heavy background tasks, and connection pooling. I have consistently achieved 25–35% performance improvements in production systems.

Do you have experience with distributed systems and microservices?

Yes. I have designed and built microservices architectures from scratch — with Docker containerization, API gateway patterns, inter-service communication, event-driven messaging, and independent deployability. I have production experience with both monolith-to-microservices migrations and greenfield microservices design.

What is your availability and timezone?

I am based in Nepal (UTC+5:45) and am fully flexible for remote work across US, EU, Middle East, and Asia timezones. I am available for full-time remote positions and long-term contracts. Contact me on WhatsApp at +977-9700864900 to discuss your requirements.