- Led the design and development of APIs for projects, acting as the primary point of contact for clarifying business logic and technical requirements, ensuring seamless system integration. - Design database schemas and API interfaces based on requirements proposed by the SA, ensuring technical implementation aligns with business objectives. - Diagnosed and resolved technical issues by analyzing codebases and debugging workflows, playing a key role in ensuring the timely resolution of problems raised by QA and end-users, maintaining system reliability Technologies Used: Node.js (NestJs) , Redis, Docker, Restful API, GraphQL API, TypeORM (Postgres, MsSQL), BeeQueue, Azure Storage, Grafana Logs

- Designed and implemented a sophisticated battery calculation system, translating complex computational requirements into efficient software solutions. - Conducted comprehensive analysis of client-provided calculation formula documents, proactively engaging with stakeholders through direct Google Meet consultations to clarify technical specifications and ensure precise requirements understanding. - Architected and developed APIs with a focus on seamless frontend integration, facilitating cross-team collaboration and enabling smooth data exchange between backend and frontend systems. Technologies Used: NodeJs (NestJs) , Redis, Docker, Restful API, Git-flow, MySQL

- Actively maintained systems and developed new features aligned with team requirements, ensuring precise technical solutions meet business objectives. - Collaborated closely with product managers and frontend engineers, fostering efficient communication mechanisms to facilitate seamless cross-team project execution. - Refactored API code logic, achieving a 60% performance improvement, significantly optimizing computational efficiency and substantially enhancing user experience. - Integrated the DocuSign service. Technologies Used: Node.js (Express) , AWS S3, CloudWatch, Redis, Docker, Restful API, Git-flow, Grafana

- In a startup environment, engaged in diverse projects involving Salesforce development, React, and ETL processes, while systematically learning and implementing Test-Driven Development (TDD) , SOLID principles, and Clean Code practices. - Later specialized in Node.js projects, quickly mastering the language and successfully delivering projects under tight time constraints, with solutions remaining operational and maintained to date. - Integrated third-party payment APIs Technologies Used: Node.js (NestJs) , Restful API, GraphQL API, MySQL, Jenkins, Nginx, React, Salesforce Apex, ETL