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Praj Va

@prajva

Backend engineer at Mercedes-Benz Canada building secure Zero Trust APIs and contributing to cybersecurity knowledge retrieval with Azure OpenAI.

Canada

Message

At Mercedes-Benz Canada, I build and maintain secure backend services and REST APIs for an enterprise Zero Trust platform. I design API workflows and contracts, implement asynchronous processing and reconciliation patterns, and contribute to Azure OpenAI-based knowledge retrieval for cybersecurity workflows.

On MeetHint, I built a TypeScript product with multi-tenant authorization, enterprise source integrations, and AI-powered retrieval with source-grounded answers. I maintain more than 600 automated tests, and my experience also includes backend and cloud work at Royal Bank of Canada, Wealth Management, CorVista Health, VanAgile Solutions, and Rogers Communications.

Experience

Work history, roles, and key accomplishments

Current

Independent Product Engineer

Current

MeetHint

Jan 2026 - Present (9 months)

Architected and built a TypeScript product with backend APIs, multi-tenant authentication, and enterprise source integrations. Built AI-powered retrieval using LLMs, embeddings, and RAG, and maintains 600+ automated tests.

TypeScript REST APIs Authentication Authorization Multi tenancy LLM Embeddings RAG Testing

Current

Full Stack Developer

Current

Mercedes-Benz Canada

Aug 2023 - Present (3 years 2 months)

Build and maintain secure backend services and REST APIs for an enterprise Zero Trust platform using Java/Spring Boot, TypeScript, and distributed service patterns. Implement asynchronous processing, security hardening, and automated testing.

Java Spring Boot TypeScript REST APIs Zero Trust RBAC OAuth JWT Docker Kubernetes CI CD Playwright Selenium Junit SonarQube Coverity Black Duck Azure OpenAI RAG

Full Stack Developer

Royal Bank of Canada

Mar 2023 - Aug 2023 (5 months)

Developed backend and integration services using Node.js, Express.js, TypeScript/JavaScript, Java, and REST APIs for regulated wealth-management applications. Built caching and synchronization components that improved data retrieval performance by 35%.

NodeJS ExpressJS TypeScript JavaScript Java REST APIs Caching Synchronization Azure Docker CI CD

Full Stack Developer

CorVista Health

Aug 2021 - Mar 2023 (1 year 7 months)

Built backend services and REST APIs using Node.js/Express, Java, Python/FastAPI, and cloud-native patterns for healthcare and medical-imaging workflows. Reduced infrastructure costs by 30% and contributed to 99.9% application uptime.

NodeJS Express Java Python fastAPI AWS Lambda API Gateway SNS Amazon SQS Docker Cloud Optimization Monitoring

Full Stack Developer

VanAgile Solutions

Mar 2020 - Aug 2021 (1 year 5 months)

Built high-traffic applications using JavaScript, PostgreSQL, REST integrations, and service-oriented backend architectures. Automated AWS delivery and data workflows, improving data-load performance by 20%.

JavaScript PostgreSQL REST AWS Docker Jenkins GitOps Airflow

Full Stack Developer

Rogers Communications

Jan 2018 - Feb 2020 (2 years 1 month)

Developed enterprise applications and backend services using TypeScript/JavaScript, Java/Spring Boot, REST APIs, and GraphQL for systems serving 1M+ users. Implemented automated CI/CD and testing practices for containerized applications.