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 to cut JS bundle size and speed up page loads.
- Raised Lighthouse mobile perf 65 → 90 by restructuring hydration and fixing LCP bottlenecks.
- Introduced Zustand to streamline data fetching and prevent redundant re-renders.
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