Vishal Sinha

CEO

Bengaluru, Karnataka, India7 yrs 3 mos experience

AI EnabledHighly Stable

Key Highlights

Expert in designing scalable microservices architecture.
Proven track record in FinTech and HealthTech industries.
Strong leadership in technical team management.

Stackforce AI infers this person is a Backend Engineer specializing in FinTech and HealthTech with strong architectural expertise.

Contact

vishalsinhaju@gmail.com LinkedIn

Skills

Core Skills

Solution ArchitectureBack-end Web DevelopmentTechnical LeadershipSoftware Development

Other Skills

API TestingAgentic AIAmazon Web Services (AWS)C++ChatGPTCloud FirestoreCloud InfrastructureCompetitive ProgrammingCore JavaDatabase SystemsDatabasesDrupalEngineering LeadershipFirebaseGo (Programming Language)

About

Backend engineer and technical architect with 8+ years designing and scaling microservices, distributed systems, and data-heavy APIs across FinTech and HealthTech. A highly motivated, end-to-end owner with strong architecture chops, OAuth2/SSO expertise, and hands-on work in agentic AI. Skills: Architecture & Patterns: Microservices, distributed systems, monoliths, serverless, event‑driven, BFF, RAG. AI & Voice: LLMs (ChatGPT, Gemini), TTS (Google TTS, ElevenLabs), speech recognition (Deepgram). Languages: Node.js (TypeScript/JavaScript), Java (Spring MVC), Go, Python (scripts). Data & Streaming: MySQL, PostgreSQL, Oracle, MongoDB, Redis, Kafka, Firestore, Datastore, BigQuery. Cloud & Infra: AWS, GCP, Microsoft Azure, Linux, Docker, Nginx, CI/CD. Web & APIs: RESTful APIs, OAuth2/SSO, webhooks. Testing & Quality: Jest, Jasmine, unit/integration/load testing, test automation. Contact me at vishalsinhaju@gmail.com.

Experience

7 yrs 3 mos

Total Experience

1 yr 9 mos

Average Tenure

Current Experience

Affordplan

4 roles

Technical Consultant

Feb 2025 – Oct 2025 · 8 mos · Remote

Consultant Developer and Lead (Node.js and Java)
Project: Procalix (Supply Chain and Procurement solution for Hospitals)
Built the product from the ground up: architecture, framework, and early releases.
Supported the team with design reviews, feature development, and test coverage across modules.
Project: Swasth (Loyalty solution for Hospitals)
Partnered with engineers to design, build, and debug features.

RedisAmazon Web Services (AWS)MySQLBack-End Web DevelopmentSQLTechnical Leadership+20

Head of Engineering

Promoted

Aug 2023 – Jan 2025 · 1 yr 5 mos · Remote

Team Lead (Node.js and Java)
Project: Swasth (Loyalty solution for Hospitals)
Led the entire technology team and oversaw all technical implementations.
Successfully transitioned the company in moving from a third-party payment solution to an in-house solution, reducing costs and dependency on external providers.
Achieved full automation of operational processes, significantly reducing the need for technical support.
Spearheaded the automation of deployment processes, streamlining the development workflow and improving efficiency.

RedisAmazon Web Services (AWS)MySQLShell ScriptingBack-End Web DevelopmentSQL+21

Senior Software Engineer

Promoted

Jul 2021 – Jul 2023 · 2 yrs · Remote

Backend Developer (Node.js and Java)
Project: Swasth (Loyalty solution for Hospitals)
Designed and developed end-to-end solutions from scratch, including architecture, coding, reviewing, deploying, and delivering solutions.
Led automation efforts to minimize operational overhead.
Contributed to the development of a scalable reporting solution tailored to business needs.

RedisAmazon Web Services (AWS)MySQLShell ScriptingBack-End Web DevelopmentSQL+21

Software Engineer

Feb 2021 – Jun 2021 · 4 mos · Remote

Backend Developer (Node.js and Java)
Project: Swasth (Loyalty solution for Hospitals)
Focused on fixing operational problems and adding automation wherever needed.

RedisAmazon Web Services (AWS)MySQLShell ScriptingBack-End Web DevelopmentSQL+20

Clarify for me

Technical Architect

Feb 2025 – Dec 2025 · 10 mos · Bengaluru, Karnataka, India · Remote

Backend Architect (Java and Node.js)
Project: Musebots (Agentic AI bot builder for entities)
Designed and established the foundational product architecture for real-world deployments.
Architected the backend using a Retrieval-Augmented Generation (RAG) pattern with semantic search over a vector database.
Implemented integrations with large language models (ChatGPT, Google Gemini), text-to-speech providers (Google Cloud TTS, ElevenLabs), and speech recognition (Deepgram), orchestrating end-to-end workflows.

Google GeminiRedisGoogle Cloud Platform (GCP)Text-to-SpeechBack-End Web DevelopmentTechnical Leadership+21

Xoxoday

Software Developer

Nov 2020 – Jan 2021 · 2 mos · Bengaluru, Karnataka, India

Backend Developer (Node.js and PHP)
Project: Plum
Restructured the code for voucher vendor integrations.
Completed the vendor integration for eGifter.

MySQLBack-End Web DevelopmentSQLNode.jsAPI TestingREST APIs+10

Obopay

2 roles

Product Engineer

Oct 2019 – Nov 2020 · 1 yr 1 mo

Backend Developer (Node.js and Go)
Project: Spotfin (Loan handling service)
Designed the Spotfin backend service.
Developed the Spotfin backend service code in Node.js.
Set up a unit testing framework to test APIs and other functionalities using Jest (which will be used in other projects also).
Project: CUR (Central user database with a single-sign-on feature for other projects)
Rewritten the CUR code in Node.js from Go.
Project: Cards (Cards for organization employees for handling expenses and compensation)
Developed APIs for the Cards backend service in Node.js.
Improvements to the SQL framework in Node.js.
Project: Chakra (Delivery management system)
Rewritten DMS route optimization service in Node.js from Go.
Helped in integrating the CUR (SSO) service with this project.

JestRedisGoogle Cloud Platform (GCP)Back-End Web DevelopmentTechnical LeadershipSaaS Development+24

Software Engineer

Oct 2018 – Sep 2019 · 11 mos

Backend Developer (Node.js and Go)
Project: Cards (Cards for organization employees for handling expenses and compensation)
Designed server-server and app-server communication protocol (which will be used in other projects also).
Developed the server-side framework in Node.js for writing backend APIs (which will be used in other projects also) for both Cards BFF (app server) and Cards backend service.
Developed APIs for Cards BFF and Cards backend service in Node.js.
Integrated CUR (SSO) service with this project.
Project: Chakra (Delivery management system)
Developed the server-side framework in Go for writing backend APIs (which will be used in other projects also) for DMS route optimization service.
Designed and developed SQL framework to query Oracle/Postgre/MySQL databases in Node.js (which will be used in other projects also) for Chakra backend service.
Developed APIs for Chakra backend service in Node.js.
Project: CUR (Central user database with a single-sign-on feature for other projects)
Helped design CUR backend service.
Developed the CUR backend service code in Go.

JestRedisGoogle Cloud Platform (GCP)Shell ScriptingBack-End Web DevelopmentTechnical Leadership+24

Ubona

Software Engineer

Sep 2018 – Oct 2018 · 1 mo · Bengaluru, Karnataka, India

Backend Developer (Java)
Project: Telephony (Multi-purpose telephony service)
Developed a messaging queue framework using Kafka for logging failed communication between different micro-services, for audit or retry purposes.

API TestingREST APIsJavaDatabasesUnit TestingSoftware Development+6

Mubble

Associate Product Engineer

Nov 2017 – Aug 2018 · 9 mos · Bangalore, India

Backend Developer (Node.js)
Project: Suddi Katte (Social networking app with news content)
Worked with the Mubble backend team, setting up server infrastructures and coding server APIs.
Set up a testing framework for different server APIs and test cases.
Set up a performance testing framework to help reduce the loading time of the app.
Worked with the Mubble product team in suggesting additional or alternative product design changes.
Project: Mubble (Recharge plans and prepaid bill app)
Update old server APIs based on the current product needs.