Available to hire
Hi, I’m Manibala Sinha — a Senior Python Backend Engineer with 6+ years of experience designing and delivering scalable backend systems, REST APIs, and distributed microservices. I specialize in FastAPI, Django, and PostgreSQL, with strong expertise in asynchronous processing, event-driven architectures using RabbitMQ, and data pipelines (ETL) for large analytics datasets. I’m experienced in applying clean architecture, dependency injection, and secure API design, and I regularly deploy containerized services on AWS with CI/CD pipelines.
I thrive on collaborating with stakeholders to translate business requirements into robust backend designs, delivering reliable, high-performance data-driven applications. I’m comfortable across the stack, from database tuning and query optimization to observability, monitoring, and security, and I enjoy building scalable systems that support analytics-driven decision making.
Skills
Language
English
Fluent
Work Experience
Senior Software Engineer – Python Backend at DevStations
January 1, 2024 - PresentArchitected and implemented backend services and REST APIs for high-volume data processing. Built FastAPI microservices and modular MVC-style services to handle pipeline jobs and metrics. Designed ETL pipelines to process large data sets using Python and Pandas. Implemented secure authentication and authorization with OAuth 2, JWT, and IAM policies. Deployed services using Docker and GitHub Actions, integrating cloud storage via AWS S3. Optimized PostgreSQL queries and indexes for high performance under load.
Software Engineer – Backend Systems at Sheridan College
January 1, 2022 - December 1, 2023Developed backend APIs for analytics and reporting pipelines. Built ETL workflows using Python and Pandas handling large-scale datasets. Optimized SQL queries and data model to improve processing performance by 30%.
Backend Developer at TBM Service Group
May 1, 2016 - September 1, 2016Developed backend APIs and optimized SQL queries for CRM and internal tools. Designed database schemas and implemented core business logic.
Software Engineer – Backend Systems at Lixar
October 1, 2016 - December 1, 2021Built scalable backend services and REST APIs for transactional systems. Integrated external services and asynchronous messaging via RabbitMQ. Enhanced reliability through structured logging, monitoring, and performance tuning.
Senior Software Engineer – Backend (Python) at DevStations
January 1, 2024 - PresentDesigned and developed scalable FastAPI microservices for high-throughput backend systems handling large-scale data processing. Built and optimized REST APIs with asynchronous processing to improve response times and system scalability. Implemented event-driven architecture using RabbitMQ for asynchronous task processing and background jobs. Designed and maintained ETL pipelines using Pandas for processing large financial and analytics data sets. Optimized PostgreSQL queries and indexing strategies to improve API performance and reduce latency. Applied clean architecture, dependency injection, and modular design principles to improve maintainability. Secured backend services using JWT and OAuth2 authentication mechanisms. Built Dockerized services and deployed on AWS (Lambda, S3, API Gateway).
Software Engineer – Backend at Sheridan College
January 1, 2022 - December 1, 2023Developed scalable backend APIs for analytics and reporting systems using Python and Django/Flask. Built and maintained ETL pipelines for large data sets and reporting workflows. Improved database performance by 30% through SQL query optimization and schema tuning. Implemented TDD using PyTest, improving reliability and reducing production bugs. Collaborated with stakeholders to translate business requirements into backend system designs. Supported backend services for data-driven applications with a strong focus on reliability and scalability.
Backend Systems Engineer at Lixar
October 1, 2016 - December 1, 2021Developed and maintained REST APIs for transactional and enterprise backend systems. Designed event-driven workflows using RabbitMQ for asynchronous processing. Implemented Redis caching strategies to improve API performance and reduce database load. Worked on scalable backend services with fault tolerance and system reliability. Built logging and monitoring mechanisms to improve observability in production systems.
Software Developer at TBM Service Group
May 1, 2016 - September 1, 2016Built backend APIs and business logic for CRM systems. Designed relational database schemas and optimized SQL queries for performance.
Education
Postgraduate Program – Computer Engineering at Sheridan College
January 11, 2030 - March 20, 2026Master's Degree – Computer Engineering at SHIATS University
January 11, 2030 - March 20, 2026Bachelor's Degree – Computer Engineering at SASTRA University
January 11, 2030 - March 20, 2026Postgraduate Program – Computer Engineering at Sheridan College, Canada
January 11, 2030 - May 1, 2026Master’s Degree – Computer Engineering at SHIATS University
January 11, 2030 - May 1, 2026Bachelor’s Degree – Computer Engineering at SASTRA University
January 11, 2030 - May 1, 2026Qualifications
Industry Experience
Software & Internet, Professional Services, Education, Computers & Electronics
Optimized Database and RestAPI of Devstations
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