Thasna Sherin

Python Developer with 3+ years of experience building scalable applications and backend services using Python, Django, and Django REST Framework. Experienced in RESTful API development, microservices, PostgreSQL, Redis, Celery, authentication, RBAC, Docker, AWS, and production troubleshooting. Proven ability to improve API and database performance through caching, asynchronous processing, indexing, and query optimization while delivering reliable, production-ready solutions.

Python Developer - Zartek Technologies - Kochi, Kerala

(2025-08 - 2026-02)

• Designed and maintained Django-based microservices for applications, supporting scalable and fault-tolerant inter-service communication.
• Built and exposed 50+ RESTful API endpoints using Django REST Framework.
• Improved backend API response time by 35% using Redis caching and Celery asynchronous task processing for high-throughput workflows.
• Designed PostgreSQL schemas and optimized indexing strategies, reducing query execution time by 40% on datasets exceeding 500K records.
• Implemented JWT authentication, authorization, and role-based access control (RBAC) across backend services.
• Diagnosed and resolved 15+ production API failures and performance bottlenecks using structured logging and debugging techniques.
• Collaborated with frontend, mobile, QA, and DevOps teams in Agile/Scrum sprints to deliver production-ready releases.

Python Full-Stack Developer - iroid Technologies - Kochi, Kerala

(2023-01 - 2025-03)

• Developed Django-based backend modules and applications for ecommerce and management systems serving 1,000+ users.
• Designed and integrated RESTful APIs for product listing, cart management, order processing, and payment gateway workflows.
• Optimized 10+ complex SQL queries on large datasets, reducing average query time from 3 seconds to under 0.5 seconds through indexing and query restructuring.
• Implemented authentication, session management, role-based admin controls, and backend business logic for ecommerce workflows.
• Built responsive frontend pages using HTML5, CSS3, Bootstrap, and JavaScript with Django templating when required.
• Maintained code quality through Git-based version control, code reviews, and CI/CD practices in an Agile environment.

Python Developer Intern - Oneteam Solutions - Kochi, Kerala

(2022-06 - 2022-12)

• Developed Django-based applications with backend and frontend integration using HTML, CSS, and Bootstrap.
• Used Git-based version control and participated in collaborative code reviews and team development workflows.

Bachelor of Computer Applications - BCA - University of Calicut (2019-08 - 2022-05)

Higher Secondary Certificate - Computer Commerce - IUHSS Parappur (2016-08 - 2018-05)