Backend & Distributed
Systems Engineer

$ whoami
haaris-toor · founding-engineer · ai-fellow · cs-student
CS student at Rutgers University building scalable systems, serverless cloud infrastructure, and AI-powered tooling.
Haaris Toor

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01 / About

Building systems that scale.

I'm a Computer Science student at Rutgers University, with a minor in Economics. I'm focused on backend systems, cloud infrastructure, and applied AI.

One of the things I'm most proud of is my work as a Founding Engineer at Lotari, where I built a production auth system from the ground up, shipped real features on a live B2B product, and care deeply about clean abstractions, minimal dependencies, and systems built for performance and horizontal scale.

Outside of engineering, I enjoy reading about history, hiking, following markets and investing, playing basketball, and casual multiplayer games with friends.

Rutgers UniversityCS + Economics

Languages

PythonTypeScriptJavaC/C++SQLJavaScript

Backend

FastAPIExpress.jsNode.jsFlaskREST APIsJWT Auth

Cloud / Infra

AWS LambdaAPI GatewayDynamoDBCDKDockerVercel

AI Systems

AWS BedrockPrompt EvalRAGLLM Toolingpandas / NumPy

Databases

DynamoDBPostgreSQLRedisSQLMatplotlibPlotly

Frameworks

ReactNext.jsTailwind CSSGitCI/CD

02 / Experience

Where I've built.

Founding Engineer

Lotari·Remote
11/2025 – PresentStartup
  • Built a license-based authentication and authorization system using JWT, TypeScript, Express.js, and FastAPI, reducing account provisioning time by 90% and improving firm-level onboarding for B2B SaaS customers.
  • Implemented stateless authorization middleware in Express.js with custom license validation logic, eliminating third-party auth dependencies and enabling horizontal scalability.
  • Migrated backend to AWS serverless architecture via Lambda, API Gateway, and DynamoDB using CDK with Bedrock-assisted code conversion, enabling scalable production deployment and reducing infrastructure complexity.
TypeScriptExpress.jsFastAPIJWTAWS LambdaDynamoDBCDKBedrock

Teaching Assistant

Quakerbridge Learning Center·Mercerville, NJ
05/2026 – Aug 2026Education
  • Teaching 50+ students Java, object-oriented programming, and data structures & algorithms fundamentals in a structured classroom setting.
  • Preparing students for the AP Computer Science A "Option 2" exam, reinforcing core concepts through hands-on exercises and targeted review sessions.
  • Designing curriculum materials and practice problems that bridge foundational theory with practical programming skills.
JavaOOPData StructuresAlgorithmsAP CS A

AI Fellow

Handshake AI·Remote
12/2025 – PresentFellowship
  • Design and execute real-world, image-based prompt evaluations for multimodal AI systems, systematically identifying model accuracy gaps and usability issues.
  • Operate within a structured evaluation pipeline under strict quality, time, and confidentiality constraints, delivering production-ready outputs aligned with evolving model standards.
  • Contribute to large-scale, high-quality image dataset development to enhance computer vision model performance and support responsible AI deployment.
Multimodal AIPrompt EngineeringComputer VisionData LabelingEvaluation Pipelines

Laboratory Technician

SGS EHS·Dayton, NJ
10/2025 – 06/2026Lab
  • Prepared sample batches for chemical analysis through preservation, spiking, reagent addition, digestion, and filtration following strict protocol.
  • Documented laboratory processes and results using Microsoft Excel scripts alongside specialized LIMS (Laboratory Information Management Systems) and Clinisys software.
LIMSClinisysMicrosoft ExcelChemical AnalysisLab Documentation

Education

Rutgers University, New Brunswick

Bachelor's in Computer Science · Minor in Economics · May 2027

Data Structures & AlgorithmsSystems ProgrammingComputer ArchitectureDiscrete MathematicsLinear AlgebraEconomic Data Analytics

03 / Projects

Things I've built.

Infrastructure-first projects emphasizing performance, scalability, and clean abstractions.

Featured

Policy Checker

Municipal budget analysis platform that automates data collection from 3+ government portals, models fiscal policy impacts across 10+ spending categories, and generates structured analytical reports with multi-chart visualization pipelines.

challenge

Handling inconsistent government data formats and building a multi-category fiscal modeling engine that auto-balances policy proposals.

Reduces manual data entry · 4+ chart types · 10+ spending categories
PythonMatplotlibPlotlyWeb ScrapingpandasMarkdown
Featured

DermAI

AI-powered skin condition analysis app built at the MTC Hackathon. Users upload a photo to receive instant analysis across 8 condition classes, with confidence scores, severity ratings, personalized advice, and a DeepSeek-powered diagnosis chat interface.

challenge

Significant class imbalance in the SCIN dataset required careful augmentation and stratified splits. Calibrating the AI chat to be medically responsible without being overly restrictive was a real balancing act.

EfficientNet-B0 · 8 condition classes · Full end-to-end pipeline
PythonFlaskPyTorchONNXEfficientNet-B0ReactViteTailwindJWTDeepSeek

This Portfolio

The project you're viewing right now! A dark-mode developer portfolio built with Next.js 16 App Router, Framer Motion animations, Tailwind CSS v4, and deployed on Vercel.

Next.jsTypeScriptTailwind CSSFramer Motion

04 / Contact

Let's build scalable systems.

Whether you're building backend infrastructure, exploring AI systems, or looking for a collaborative engineer, I'd love to talk.