AR
Portfolio
Arjun Ranjan
Software Engineer • MS CS @ ASU
Building fast, elegant web apps and agentic backends. Next.js, TypeScript, FastAPI, Java. Performance-focused and UX-obsessed.
About
Builder of fast, beautiful software
I blend product taste with systems thinking. Recent work focuses on performance-first Next.js, pragmatic backend services, and agentic workflows.
I care about craft: crisp type, accessible motion, and measurable speed. My favorite PRs delete code and make pages feel instant.
Tooling I reach for: Next.js, TypeScript, GSAP, Framer Motion, FastAPI, Spring Boot, Postgres, MongoDB, Docker, and solid observability.
Experience
Where I learned by shipping
Software Engineering Intern · Alleo.ai (Techstars ’22)
Sep 2025 – Present
- Refactored Next.js App Router layouts into shared server components, cutting JS bundle size and improving TTI raised Lighthouse Mobile Performance 65 to 90 and reduced LCP by optimizing image hydration and client-islands
- Re-platformed chat to a tool-orchestrated agentic system, improving tool-call success rate from 75% to 95%
Grader (CSE259: Logic in CS) · Ira A. Fulton Schools — SCAI
Aug 2025 – Present
- Graded for 120+ students; designed rubrics with faculty for fair, consistent evaluation.
- Provided targeted feedback and office-hours coaching; cohort performance +15%.
Undergraduate Teaching Assistant · Ira A. Fulton Schools — Capstone
May 2025 – Aug 2025
- Mentored 70+ students on scalable architecture, testing, and agile delivery.
Backend Engineer · tCognition Inc. (Capstone)
Aug 2024 – May 2025
- Designed secure JWT auth in Spring Boot and modeled MongoDB for high-volume ATS data.
Software Engineering Fellow · Headstarter
Jul 2024 – Sep 2024
- Shipped 3 prod-grade full-stack apps (React/Next/Firebase); CI/CD cut deploy time 50%; backend latency –40%.
Projects
Featured work
AI Flashcards
FastAPI • TypeScript • Ollama- Topic & PDF → structured flashcards via local LLM inference (RAG-ready).
- Interactive React front-end with file upload and dynamic state.
Stack
Tools I move fast with
Next.jsReactTypeScriptNode.jsFastAPIPythonJava/Spring BootPostgreSQL/MongoDBDockerAWS/GCP/AzureCI/CDUI/UX & Accessibility
Education
Foundations
M.S. in Computer Science
Arizona State University • Dec 2026 (Expected)
Relevant: Semantic Web Mining, Applied Cryptography, KRR
B.S. in Computer Science — 3.92 GPA (Dean’s List, all semesters)
Arizona State University • May 2025
Relevant: DS&A, Compilers, OS, DBMS, ML, Data Mining, iOS, QA, Data Viz
Contact