Raj Chimmalgi
Full Stack Developer @Limbic
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WORK HISTORY
Full Stack Developer @Limbic
Contributed to a regulated healthcare platform spanning an AI intake chatbot, clinician dashboard, bot-configuration tool, browser extension, and Node.js backend, supporting U.S.(HIPAA) and U.K./EU (GDPR) deployments- Implemented and optimized backend services using Express, MongoDB, Redis, BullMQ, and AWS S3/CloudWatch; delivered secure REST endpoints and validation via Zod- Enhanced the AI chatbot with OpenAI LLMs, adaptive question logic, and crisis-detection capabilities- Built front-end features for the bot builder (React Flow, MUI, Zod) and clinician dashboard (React 19, TypeScript, Tailwind 4, shadcn, Radix UI), improving usability and analytics through Mixpanel and Sentry- Contributed to a browser extension (React, MobX) enabling clinicians to access and sync EHR data securely- Added new models and schemas to an internal TypeScript types library, improving cross-service consistency and reducing integration issues- Contributed to authentication and authorization with FusionAuth, JWT, Helmet, and rate-limiting to meet HIPAA/GDPR compliance- Wrote automated tests with Vitest, Jest, Playwright; reinforced CI/CD pipelines and pre-commit checks (Husky, ESLint, Prettier), using Doppler for environment management- Mentored developers, refined code-review practices, and led discussions on QA strategy, accessibility, and pragmatic architecture- Presented internal talks on AI-assisted localization, developer productivity, and responsible AI integration in healthcare. Tech: Node.js · Express · MongoDB · Redis · BullMQ · AWS S3/CloudWatch · FusionAuth · OpenAI API · GraphQL/Apollo · React 19 · TypeScript · React Flow · Tailwind 4 · shadcn · Radix UI · Vitest · Jest · Playwright · Mixpanel · Sentry · New Relic
EDUCATION
Southern University and A&M College- Baton Rouge
Bachelor of Science, Computer Science
Louisiana State University
Master of Science, Engineering Science - Information Technology Engineering
Baton Rouge Community College
Associate of Arts and Sciences - AAS, Business
SKILLS
ABOUT RAJ CHIMMALGI
Hey there! I\'m Raj, a passionate and experienced React developer with a knack for crafting elegant and intuitive user interfaces. As a dedicated freelancer, I thrive on turning ideas into reality, bringing my clients\' visions to life through cutting edge React development.With over 10 years of software development experience, I have honed my skills in building scalable and responsive web applications. My expertise extends to utilizing modern front-end technologies, including React, Redux, and TypeScript, to create seamless user experiences. Whether it\'s designing interactive components or optimizing performance, I take pride in delivering top-notch solutions that exceed expectations.As a proactive problem-solver, I enjoy collaborating with clients to understand their unique requirements and business goals. I believe that open communication and transparency are essential for successful projects, and I always keep my clients in the loop throughout the development process.I have a track record of delivering high-quality code on time and within budget, making me a reliable and trustworthy partner for your React development needs. Whether you\'re looking to revamp an existing application or start from scratch, I\'m eager to take on new challenges and provide innovative solutions.
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