
Rishi PS
Full Stack Developer
Skills

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Werkervaring
Senior Engineer - Application Development
Tiger Analytics • Fulltime
Apr 2026 - Present • 6 mos
• Rapidly ramped up on the client’s analytics domain and backend architecture within the first three months, independently delivering 25+ scalable production APIs using Python and FastAPI for regional Data Science workflows while collaborating with data Science, frontend and project stakeholders. • Designed and implemented dynamic query-generation logic using SQLAlchemy, transforming multiple frontend parameters into complex PostgreSQL and Snowflake queries supporting business analytics such as sales value, gross margin, and brand prioritization. • Investigated and resolved production data discrepancies by tracing complex joins, filters, and query logic, while optimizing API execution and reducing response times by up to 68% to improve application performance and scalability. • Contributed to migrating existing AWS Lambda application logic and established CI/CD automation across 3 environments, enabling automated releases through pull-request workflows and reducing deployment time from 20 minutes to 5 minutes.
Associate Software Engineer
Tech Mahindra • Fulltime
Sep 2023 - Feb 2026 • 2 yrs 5 mos
• Developed and launched scalable applications such as Order Management System (OMS) with Fast API, Flask and Django which improved order processing efficiency by 35% and reduced latency across services. • Integrated RESTful APIs into multiple components, enabling dynamic data rendering and boosting feature completion rate. • Implemented Redis for Caching frequently accessed data, reducing response time and improving overall application performance. • Integrated third-party APIs and services into backend applications, ensuring secure and reliable communication between components. • Established secure authentication and authorization workflows with JWT and OAuth2.0, cutting unauthorized access incidents by 40%. • Deployed services using Docker containers and integrated with CI/CD pipelines for seamless release cycles. • Used Git for version control, enabling efficient collaboration in an agile development environment. • Configured and monitored applications on AWS, ensuring high availability and performance. • Collaborated with cross functional teams to deliver production- ready solutions for backend systems. • Created unit tests with PyTest and unit test frameworks reducing production defects by 30%.