Pankaj Kumar

Designed and developed multiple REST APIs and internal tools using Python, MongoDB, MySQL, AWS Lambda, API Gateway, Docker, Kubernetes (AWS EKS), and DocumentDB, delivering new product features across the company's suite. Engineered and implemented data pipelines for near-real-time data sync with YellowBricks Data Warehouse, leveraging AWS Lambda (Python runtime), S3, Pandas, and NumPy for large-scale data processing and visualization using Apache Superset; improved team efficiency by 75% in delivering new pipelines. Architected and re-designed DevOps pipelines based on GitOps using GitHub Apps, Actions, and custom workflows to automate and streamline build, deploy, and release processes. Redesigned legacy Jenkins build pipelines, reducing build times by over 50% and introducing robust workflows for build, deployment, testing, and branching to support continuous monthly releases.

Designed and developed scalable Python REST APIs using Django, Django REST Framework, AWS Lambda, DynamoDB, and API Gateway (serverless), including automation scripts with Pandas and NumPy for a leading FinTech client (PayPal). Led backend development for the Marketing Ops project, enabling the marketing team to increase communications from one to 200+ daily campaigns per region for users worldwide (referrals, legal updates, promotions). Built and maintained EDA (Exploratory Data Analysis) pipelines, integrating campaign data into Data Warehouse systems for advanced analytics and reporting.

Designed and developed multiple backend APIs and web services using Python, Django, Django REST Framework, PostgreSQL, AWS Lambda, API Gateway, and DynamoDB (AWS Serverless tech stack) to support Android, iOS apps, and websites. Led the transformation of Decathlon's monolithic backend into a modular microservices architecture, enabling seamless integration and support for Android, iOS, and web applications. Managed and mentored a backend team of 8 members. This modernisation contributed to record digital platform revenue growth and significantly improved app ratings and reviews. Spearheaded the design and development of the AllForSport (now Decathlon Play) platform from the ground up—a service that allows users to locate and book sports facilities, events, and coaches, and engage with sports-related content. Managed a backend team of 5 members. The platform enhanced user engagement, generated additional revenue from vacant sports facilities, and expanded partnerships with sports facility owners.

Designed and developed a Seat Management System web application using Python and Django. Enabled business units to allocate and reserve seats across multiple locations, allowing clients to book seats, cubicles, floors, and wings in advance for streamlined onboarding and workspace setup.