Angelina Li — Backend SWE

Graduating May 2027

Angelina Li

// Backend Software Engineer

University of Pennsylvania · BS CS + Economics · MS CS

I'm an undergrad at Penn finishing both my bachelor's and master's in 4 years. During school I work on Penn Mobile, an app our club runs that 99% of undergrads use to book study rooms, check dining info, and track laundry. I also TA a CS course, which I really enjoy. I think you can learn something from everyone so I love asking questions and understanding the why. Outside of tech I started a tutoring nonprofit that now has 150+ student-tutor relationships across 5 countries, am a part of Society of Women Engineers (engaged 800+ K–12 students through coding workshops and programs), and love playing volleyball.

GitHub ↗ LinkedIn ↗ Email

1,000+

GitHub commits
in 2026

26K+

ad query templates
automated at Meta

99%

of Penn undergrads
use Penn Labs for reducing latency/cogs

Distributed Systems

Batch Pipelines · Microservices

Data & Databases

Postgres · MongoDB · Redis

REST API Design

Django · Flask · Node.js

ML Infrastructure

Pipelines · Automation · Accuracy

Experience

Microsoft

Software Engineer Intern · AI Team

Summer 2026

Meta

Software Engineer Intern · Ads Innovation

May – Aug 2025

Penn Labs

Backend Engineer

Feb 2025 – Present

Penn Engineering

CS Teaching Assistant

Aug 2024 – Present

Tech stack

Languages

PythonTypeScriptJavaJavaScriptSQLKQL

Frameworks, Tools & Infrastructure

DjangoFlaskNode.jsExpressDockerKubernetesAWSAzurePostgreSQLMongoDBRedisREST APIsGitCI/CDAnthropic SDK

AI & Systems

Multi-Agent LLM PipelinesAgentic Tool OrchestrationVector DatabasesStructured OutputsA/B ExperimentationLLM-as-Judge EvaluationDistributed SystemsFault-Tolerant PipelinesMicroservicesTelemetry & ObservabilitySystem Design

Education

University of Pennsylvania

BA Computer Science & Economics
MS Computer Science

Philadelphia · Aug 2023 – May 2027

Focus areas

DatabasesAlgorithmsSystemsNetworksBig Data

GitHub Contributions

GitHub Stats

Top Languages

Projects

Wedding Suite

weddingsuiteapp.com ↗

Next.js · TypeScript · Supabase · PostgreSQL · Stripe · Tailwind CSS · Swift/StoreKit

Architected and shipped full-stack wedding planning SaaS (web + native iOS) with Stripe-powered subscription billing across 3 tiers (weekly/monthly/one-time) with webhook-driven plan lifecycle management and trial enforcement. Designed a 15+ table PostgreSQL schema on Supabase with row-level security, automated migrations, and a public RSVP flow supporting real-time guest lookup, meal tracking, and household management.

Roomly: Roommate Finder for Students & New Grads

roomlymatch.com ↗

Django · React · Postgres · Railway

Built a full-stack roommate listing platform for users to browse listings with search, filtering, and pagination. Deployed on Railway with automated migrations and ensured data persistence and rollback-safe schema changes. Implemented secure JWT/session auth and role-based admin workflows for moderation and user management.

Financial Literacy Platform

J.P. Morgan Code For Good Invitee

Python · Flask · SQLAlchemy · Postman

Built Flask REST APIs to manage student and admin data, implementing CRUD operations, role-based access controls, request validation, and workflows to track lesson progress, digitized forms, and real-time metrics.

DalyPaw

dalypaw.com ↗

iOS · React Native · Node.js · Real-time

iOS app + agency web portal for pet care businesses. Real-time visit logging (walks, feedings, photos) with instant report cards delivered to pet owners. Agency dashboard for sitter management, family assignment, and full activity tracking — available on the App Store.

Reticketer

Node.js · Next.js · MongoDB · Tailwind CSS

All-in-one ticket reselling platform. RESTful APIs for ticket transactions and auth, server-side rendering with Next.js, MongoDB for user and listing data persistence.

Leadership

Felt Initiative

Founder & Advisor · Jun 2021 – Present

Founded nonprofit facilitating 150+ student–tutor relationships, 800+ volunteer hours annually, reaching 60K+ users through web and social channels.

Penn Society of Women Engineers

Educational Outreach · Feb 2024 – Present

Engineering outreach engaging 800+ K–12 students through coding workshops and programs.

What I look for

Role fit

Backend + AI High-scale backend systems Infrastructure & platform Data pipelines Strong eng culture

Beyond engineering

Mentorship & growth Hackathons Community building Understanding the why