Nithin Guptha

Senior Full-Stack Software Engineer with 9+ years of experience designing, developing, and maintaining enterprise web applications, analytics platforms, and productivity tools. Strong experience across Angular, React.js, JavaScript, TypeScript, C#, ASP.NET Core, .NET Web API, Node.js, REST APIs, SQL, MongoDB, AWS, Kafka, and microservices. Experienced in end-to-end product development, including responsive UI development, API design, database integration, event-driven architecture, cloud-based applications, data synchronization, performance optimization, and production support.

Delivered

Excel add-ins and enterprise workflow systems supporting real-time import/export, bulk updates, analytics, scheduling, and integrations with ERP/CRM platforms. Comfortable collaborating in Agile teams, leading small teams, conducting code reviews, and translating business requirements into scalable technical solutions.

Senior Software Engineer • Full-time at Celigo (2023-06 – 2026-03)

• Developed and enhanced Extend Insights, a full-stack Excel add-in supporting real-time data import, analysis, bulk updates, export, and two-way synchronization with NetSuite, Stripe, Salesforce, Hubspot, Chargebee, Google Analytics and other ERP/CRM platforms.
• Built dynamic user-interface workflows using Angular 17 and JavaScript.
• Developed backend services, reusable libraries, and REST APIs using C# and.NET.
• Designed AWS-based, event-driven data workflows using Lambda, SQS, Step Functions, DynamoDB, and MongoDB.
• Delivered scalable solutions for large-scale import, export, synchronization, and analytics use cases.
• Designed asynchronous, queue-based processing pipelines for datasets of up to 1 million records.
• Applied batching and pagination with AWS Lambda, SQS, and Step Functions to improve scalability and prevent request-timeout failures.
• Used SQS and Step Functions to decouple and orchestrate long-running workflows, including validation, retries, error handling, and status tracking.
• Optimized DynamoDB and MongoDB access through efficient querying, indexing, filtering, and scalable data-modeling practices.
• Contributed to cloud-native architecture, API design, secure integrations, production debugging, performance optimization, and maintainable enterprise application development.

Senior Software Engineer • Full-time at Zenoti (2019-05 – 2023-05)

• Developed and modernized appointment-management capabilities for a large spa and salon management platform.
• Worked with Angular, ASP.NET Web API, C#,.NET Web Forms, SQL, jQuery, and NgRx state management.
• Enhanced appointment-scheduling algorithms, workflow UI, validation, authentication, and backend integrations.
• Led a team of four engineers on product-localization initiatives and supported smooth feature delivery.
• Integrated third-party chat and VoIP widgets into the platform.
• Upgraded authentication to PIN-based login.
• Improved application accessibility toward ADA-compliance standards.
• Collaborated with stakeholders to analyze requirements, define functionality, resolve defects, and improve user experience.

Software Engineer • Full-time at GGK Technologies (2017-05 – 2019-05)

• Built analytics and healthcare applications using Angular, ASP.NET Web API, ASP.NET Core MVC, JavaScript, Microsoft SQL Server, MongoDB, and microservice architecture.
• Owned the UI design and implementation of an insurance analytics dashboard.
• Created D3.js data visualizations and implemented Angular Material theming.
• Integrated Kafka for inter-service communication and logging.
• Applied Publish–Subscribe and Repository design patterns.
• Developed forms, AJAX workflows, file-upload capabilities, data binding, dynamic search, grid actions, server-side session management, validations, and database integrations.
• Received the Developer of the Month Award for exceptional performance.

Bachelor of Engineering (Hons.) – BITS Pilani University (2013-05 – 2017-05)