Vamshi Krishna Hasanabada

Senior Software Engineer

Hyderabad, Telangana, India5 yrs 4 mos experience

Most Likely To Switch

Key Highlights

5+ years of experience in backend development.
Expert in designing scalable REST APIs and microservices.
Strong focus on reliability and performance in production systems.

Stackforce AI infers this person is a Backend Software Engineer specializing in scalable systems and API design within the SaaS and Fintech industries.

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Skills

Core Skills

Backend DevelopmentApi DesignFrontend Development

Other Skills

API IntegrationAWSAutomated testingExpressExpressJSFastAPIJWTMySQLNode.jsPayment processingREST APIsReactReact.jsS3-compatible object storageSequelize ORM

About

Backend Software Engineer with 5+ years of experience building scalable, production-grade systems using Node.js and FastAPI. I specialize in designing REST APIs, microservices, and payment-related backend workflows with a strong focus on reliability, performance, and clean architecture. I have worked on backend services handling high request volumes, implemented transactional logic, and integrated third-party systems with proper error handling, retries, and observability. Comfortable working with databases, cloud deployments, and CI/CD pipelines in real production environments. Currently seeking backend-focused roles in Hyderabad where I can work on scalable systems, APIs, and microservices.

Experience

Ihub-data, iiit hyderabad

Senior Software Engineer

Dec 2023 – Present · 2 yrs 3 mos · Hyderabad, Telangana, India · On-site

Designed and implemented backend APIs for large file upload and download using chunk-based streaming, enabling reliable handling of multi-GB datasets with improved throughput and reduced memory usage.
Integrated S3-compatible object storage (MinIO) to support concurrent uploads/downloads and manage 100K+ files across multiple datasets.
Built a React-based mock application to demonstrate upload/download workflows, validate edge cases, and support stakeholder reviews.
Analyzed legacy database access patterns and documented system gaps; recommended ORM-based improvements to standardize queries and improve maintainability.
Architected and developed a standalone Payment Gateway Microservice using Node.js and Express with clear controller–service separation and modular design.
Implemented a Payment Abstraction Layer integrating Razorpay, supporting client registration, order creation, payment capture, reconciliation, payouts, invoice generation, and KYC workflows.
Designed transactional payment flows with proper isolation, retries, and webhook-based reconciliation between payment and core services.
Built scalable backend foundations using MySQL (Sequelize ORM), JWT-based authentication, route protection middleware, pagination, and centralized logging with Winston.
Developed and scaled an E-book application backend with multi-layer abstractions (SQL client, object storage, socket manager) and contributed to frontend improvements including OpenSeadragon viewer enhancements.
Built a Python FastAPI application server with modular architecture, abstracted database and object storage layers, and clean separation of business logic.
Created automated test suites for critical backend flows (payments, uploads, core APIs), improving regression safety and increasing confidence during feature releases and refactoring.
Mentored junior engineers and interns, and guided backend and frontend improvements.

Node.jsExpressFastAPIMySQLSequelize ORMJWT+6

Valuefy

Software Engineer

May 2023 – Nov 2023 · 6 mos · Thane, Maharashtra, India · Remote

Valuefy is a premier investment management technology with cutting-edge solutions serving the leading financial institutions in India and across the world.

Inqui-lab foundation

Software Engineer

Dec 2021 – May 2023 · 1 yr 5 mos · Hyderabad, Telangana, India · Remote

Client: UNICEF, Project: Upshift Powered By Unisolve.
1. Integrated third-party tools like storybook for UI development, and I18Next framework for multilingual language change in frontend.
2. Worked on React.js virtual DOM rendering using components that contain additional components called custom HTML tags.
3. Extensive experience of Object Oriented JavaScript design patterns and JavaScript MVC Patterns Preferably NodeJS.
4. Involved in writing application-level code to interact with APIs.
5. Build a highly scalable web server, Creating non-blocking functions.
6. Developed REST API's with swagger documentation.
7. Developed ExpressJS Middleware essentially development services and serving them through, for Example: middleware Error handler, dispatcher, response builder, etc.
8. Implemented a class-based advanced wrapper functionality for CRUD operations.
9. Developed JSON web tokens for authentication and authorization security configurations using NodeJS.