Hi, my name is
Steven Jang
Software Engineer
I am a software engineer based in Los Angeles, CA specializing in web/mobile applications

Technologies

Frontend

JavascriptTypescriptReactReact NativeReduxNextJSGatsby

Backend

GolangDockerGCloudAWSRabbitMQgRPCFirebaseBashJavaGraphQLRESTKubernetesExpress

Misc

RegExGit & GithubLaTexPython

Education

Cal Poly Pomona

Major: Computer Science
Minor: Mathematics
GPA: 3.62

Papers

The Pentagon: 881

Recursion Theory

Find a formula (possibly recursive) for the number of integers with n digits that contain exactly one 47 in the integer.

See my solution

The Pentagon: 885

Inequalities and Infinite Series

$a, b, x, y > 0, n \in N^{*}$ prove that $\frac{(x + y)^{n}}{2^{(n - 1)}} \leq \frac{(a x + b y)^{n} + (b x + a y)^{n}}{(a + b)^{n}} \leq x^{n} + y^{n}$

See my solution

The Pentagon: 882

Functional Equations

Find all functions $f : R \overset{}{\to} R$ $f (x^{4} + y) = f (x) + f (y^{4})$ $x, y \in R$

See my solution

The Pentagon: 889

Infinite Series

$h_{n} = \sum_{k = 1}^{2 n} \frac{(- 1)^{k + 1}}{k}$ Identify: $lim_{n \to \infty} (\log (2) - h_{n}) n$ $lim_{n \to \infty} ((h_{n} h_{n + 1} - \log^{2} (n)) n)$

See my solution

Crux: 1377

Infinite Series

Consider a decreasing and positive sequence ${a_{2 k - 1}}_{k \geq 1}$ whose sum converges. Prove there exists another decreasing and positive sequence ${a_{2 k}}_{k \geq 1}$ such that the combined sequence ${a_{n}}_{n \geq 1}$ is decreasing and the series $\sum_{n = 1}^{\infty} a_{n}$ converges to an irrational number

See my solution

Experience

Fwaygo

Messaging Feature

Built a full-scale chat feature using a third party service and integrated it in our existing backend system. Designed and rebuilt the messaging service with in-house microservice solution utilizing Golang, Firestore, Firebase Real-time Database, RabbitMQ, Docker, GraphQL, Kubernetes and AWS S3. This feature includes sending text, images, videos, audio, all other files, reactions, threading, and in-app sharing. I then integrated this feature into the front-end, which was done using React Native and Redux.

Fwaygo

Snap Mini

Implemented the voting game microservice utilizing Golang, Firestore, Firebase Real-time Database, gRPC, Docker, Kubernetes, GraphQL and AWS S3. This feature includes a tinder-like voting system for songs, mutual likes (songs that you and your snapchat friends liked), and community favorites (songs that your friends liked). This microservice was then integrated in the front-end using React, Redux, and the Snap Mini SDK.

Glottis Project

Chrome Extension/Web App

Created a Chromium plugin to add words in Netflix subtitles to the Glottis web app as flashcards. The web app will show you what words you have to study. This project was created using Javascript, NextJS, Node, and Firebase