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I'm a senior developer who specializes primarily in backend and also fullstack applications. I have extensive Node.js and Python expertise for over 6 years building web applications and serverless solutions. Proven track record in designing scalable microservices and optimizing data pipelines, reducing costs by 50% and processing times by 25%. Adept at mentoring teams and deploying robust applications in AWS and GCP environments. --- Employment and project experience Full stack developer Freelancing Senior Product Engineer Travelopia _August 2022 - March 2025_ Senior Backend Developer Paytm _July 2019 - August 2022_…I'm a senior developer who specializes primarily in backend and also fullstack applications. I have extensive Node.js and Python expertise for over 6 years building web applications and serverless solutions. Proven track record in designing scalable microservices and optimizing data pipelines, reducing costs by 50% and processing times by 25%. Adept at mentoring teams and deploying robust applications in AWS and GCP environments. --- Employment and project experience Full stack developer Freelancing Senior Product Engineer Travelopia _August 2022 - March 2025_ Senior Backend Developer Paytm _July 2019 - August 2022_

Ameen Ahsan

Full Stack Developer, Back-End Developer, Web Developer, +6

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I'm a senior developer who specializes primarily in backend and also fullstack applications. I have extensive Node.js and Python expertise for over 6 years building web applications and serverless solutions. Proven track record in designing scalable microservices and optimizing data pipelines, reducing costs by 50% and processing times by 25%. Adept at mentoring teams and deploying robust applications in AWS and GCP environments. --- Employment and project experience Full stack developer Freelancing Senior Product Engineer Travelopia _August 2022 - March 2025_ Senior Backend Developer Paytm _July 2019 - August 2022_…I'm a senior developer who specializes primarily in backend and also fullstack applications. I have extensive Node.js and Python expertise for over 6 years building web applications and serverless solutions. Proven track record in designing scalable microservices and optimizing data pipelines, reducing costs by 50% and processing times by 25%. Adept at mentoring teams and deploying robust applications in AWS and GCP environments. --- Employment and project experience Full stack developer Freelancing Senior Product Engineer Travelopia _August 2022 - March 2025_ Senior Backend Developer Paytm _July 2019 - August 2022_

Available to hire

Bengaluru, India

I’m a senior developer who specializes primarily in backend and also fullstack applications.

I have extensive Node.js and Python expertise for over 6 years building web applications and serverless solutions. Proven track record in designing scalable microservices and optimizing data pipelines, reducing costs by 50% and processing times by 25%. Adept at mentoring teams and deploying robust applications in AWS and GCP environments.

Employment and project experience

Full stack developer Freelancing

Senior Product Engineer Travelopia
August 2022 - March 2025

Senior Backend Developer Paytm
July 2019 - August 2022

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Language

English

Fluent

Work Experience

Senior Software Engineer at Paytm

February 2, 2022 - October 15, 2025

Backend team member for travel solutions. Designed and implemented new microservices for conversion of existing monolith into smaller services using Express-Node.js and Golang. Handled the team of 10 developers in the absence of the lead and delivered sprints on time. Trained and mentored 9 new joiners including Interns, SE and SSE. Optimized an Express app having 1,000 requests per second by improving Node.js synchronous code and third party REST API integrations.

Senior Software Engineer at Paytm

August 2, 2022 - October 15, 2025

Backend team member for travel solutions. Automated a process to deliver data from MongoDB to AWS Athena through PostgreSQL and Hive using Node.js. Developed and integrated microservices to train a machine learning model and predict user data using Python and CatBoost. Worked on multiple microservices including search, notification, configuration delivery and data generation using Express.js and Node.js. Implemented retry mechanisms using producer-consumer RabbitMQ and Kafka. Improved phonetics search by managing Elasticsearch. Configured Vacuum processes in PostgreSQL and implemented Cassandra-based user-retargeting.

Senior Product Engineer - Data at Travelopia

March 2, 2025 - October 15, 2025

Data Integration team member for travel solutions. Designed system architecture from business requirements while supporting tech leadership architecture decisions and team management. Developed 20+ Lambda functions as part of different data pipelines using Python and Node.js, enhanced with Lambda power tools. Designed and set up end-to-end serverless architectures using AWS CloudFormation and Terraform, implementing event-driven workflows. Set up custom workflows on HubSpot using Node.js for sales operations. Reduced ETL processing times by 25% through optimized data handling with Python and Pandas. Mentored new team members on development best practices. Upgraded security by improving authentication across HubSpot integrations and GitHub CI/CD pipelines. Tech Stack: Python, Node.js, Express.js, PostgreSQL, Kafka, Debezium, AWS Lambda, AWS EC2, Render.

Senior Software Engineer at ADIA Health

April 2, 2025 - October 17, 2025

Back-end delivery improvements and platform enhancements; designed and implemented robust server-side services including PDF generation and document workflows; collaborated with cross-functional teams to streamline operations.

Senior Software Engineer at D4D X Innovations

April 1, 2025 - Present

Built the backend for a mobile application using Node.js and PostgreSQL; implemented scalable backend services and led server-side development for a fast-moving project.