Jonathan Nicholas

Computer Science Undergraduate, Universitas Indonesia 2023

Jakarta Barat, Indonesia

jojonichoo@gmail.com - +62 812 9100 0903

EDUCATION

[2019 - 2023] B.S., Computer Science, Universitas Indonesia, Depok, West Java, Indonesia
GPA: 3.88/4.00

RESEARCH EXPERIENCE

[Dec 2022 - June 2023] Undergraduate Researcher, University of Indonesia, Depok, Indonesia

• Developed Geo-Aware load balancing scripts for the Kubernetes environment, allowing websites to have less latency while having less resources through geographically-strategic deployments.
• Deployed a 3-tier web application to geo-distributed Kubernetes clusters using multi-cluster resources on Google Cloud Platform, allowing easy adoption for existing Kubernetes configurations.
• Configured Istio service mesh for location-aware load balancing and measured performance compared to the MultiClusterService with MultiClusterIngress approach using Vegeta load test tool.

PUBLICATIONS

[June 2023] Web Application Performance Analysis of Multi-Region Geo-Distributed Kubernetes Clusters, PI: Muhammad Hilman

• https://lib.ui.ac.id/detail?id=9999920541209, github.com/jojonicho/skripsi, pdf

WORK EXPERIENCE

[May 2024 – Present]
Software Engineer, Jimo, Paris, France

• Jimo is the only digital adoption platform that offers personalized onboarding and support to increase conversion, increase retention, and reduce support tickets.
• Improved user retention by 20% through the Snooze and Recurrence feature.
• Increased MRR by 3K EUR by revamping Changelog/Post with sleek animations using React and Framer.

[June 2023 – May 2024]
Software Engineer, Atome, Jakarta, Indonesia

• Collaborated with brands such as Lazada, TikTok, and Tokopedia to deliver and maintain payment services across Indonesia, Philippines, Thailand, Malaysia, and Singapore.
• Integrated Lazada PayLater API across multiple countries using Java Spring, Kubernetes, and Rancher.

[Aug 2022 – Dec 2022]
Software Engineer Intern, Traveloka, Jakarta, Indonesia

• Integrated Salesforce and Datadog Monitoring & Alert using Terraform, AWS Lambda, and Java.
• Increased user engagement by creating routing logic for Traveloka Priority users using Java and Terraform.
• Automated GitHub release tag creation using GitHub Actions.

[Jan 2022 – Apr 2022]
Software Engineer Intern, Ruangguru, Jakarta, Indonesia

• Prevented millions in losses from outages by integrating rate limiting on hundreds of services using Go, Kubernetes, Istio, and Envoy across Singapore, Indonesia, Malaysia, and the Philippines.

[Feb 2020 - Present] Senior Data Science Member, Ristek Fasilkom UI, Depok, West Java.

HONORS AND AWARDS

Scholarship

[2019]
Sea Undergraduate Scholarship 2019. Sea Group

• Selected as 1 of 4 students from the University of Indonesia to receive full funding for their bachelor’s degree.
• Sponsored by Sea, Singapore’s leading global consumer internet company with business units including Garena (digital entertainment), Shopee (e-commerce), and SeaMoney (digital financial services).
• Hands-on interview experience using english while talking about concerning problems in Indonesia
• Displayed exceptional learning capabilities and motivation throughout 6 months of learning CS.

Third Winner

[Feb 2020]
Data Science Arkavidia. Bandung Institute of Technology

• Ranked 1st out of 360 in preliminaries and 3rd in finals (Kaggle). Team name: Two Epochs.
• Utilized CatBoost with hypertuned parameters using Bayesian Optimization and VotingClassifier model ensembling.
• Presented a high-accuracy solution to tiket.com Data Scientists using FbProphet to predict the number of bookings and reduce food wastage.

Silver Medalist

[2020]
Data Mining GEMASTIK. Ministry of Education

• Used CatBoost to identify network outages based on packet loss, volume, latency, and area, enabling electrical companies to address outages proactively.
• Improved accuracy using VotingClassifier and mitigated bias in uneven datasets with undersampling.

Finalist

[2022]
The ICPC Asia Jakarta Regional Contest

• Ranked 18th nationally. Team name: Dewa Ngga. Leaderboard.

Finalist

[2021]
The ICPC Asia Jakarta Regional Contest

• Ranked top 40 internationally. Team name: Juuichigatsu wa kimi no AC. Leaderboard.

Fourth Winner

[2020]
Competitive Programming GEMASTIK. Ministry of Education

• Ranked 4th nationally.

Third Winner

[Jun 2020] Data Mining, JOINTS 2020. Universitas Gadjah Mada
Team name: ZephyrOne finals

• First place accuracy in leaderboard
• Learned how to handle Multiclass Classification

PROJECTS

[Aug 2020] Website - Github Frontend Backend
Discord Clone with NextJS, Typescript, and Apollo GraphQL

• Chat implementation using Apollo GraphQL Subscription Websockets.
• GraphQL Codegen for type-safety mutation/query/subcription hooks.
• Type-safety Typescript and styled with EmotionJS.
• User register validation, login and authentication using JWT access and refresh tokens.
• User confirmation with email using Nodemailer stored in Redis.
• Backend using NodeJS, TypeORM, TypeGraphQL and Postgres.

[May 2020] Website - Github
Giftr! Tierlist Maker and GIF Search Engine with Typescript React

• Drag and drop using react-beautiful-dnd and styled with EmotionJS.
• Integrated Typescript for seamless autocomplete on API and Theme methods.
• Blazing fast search and inject results in component using Hooks.

[May 2020] Website - Github
Portfolio and Blog with Gatsby

• State management using react hooks and styled using EmotionJS.
• Implemented backend using GraphQL and Markdown.
• Impacted 2000+ connections on LinkedIn through written article about Gatsby.

[Mar 2020] Website - Gitlab - Associated Web Design and Programming Coursework
Fullstack End-to-end Online Shop with Django and Javascript

• Test Driven Development using Red - Green - Refactor approach with Selenium.
• Automated testing and deployment to Heroku using gitlab CI/CD.
• Implemented item search and coupon discount, added through custom admin dashboard.
• Implemented email and google authentication using Django Allauth.
• Styled with pure css and event handlers with vanilla javascript and ajax.

[Mar 2020] Website - Github - Associated with Pesta Rakyat Komputer
Form Submission and Score Classement Display with React, Redux and Hooks

• Backend admin dashboard using firebase and styled using styled-components.
• Improved traffic by implementing beautiful and responsive layout for displaying classement of events.
• Improved UX by giving user feedback through 404 page and loading progression bar.

[Feb 2020] APK - Github
Food consumption reporting mobile app with Flutter and Firebase

• Authorization using google auth.
  

[Jul 2019] Github
Basketball courts search mobile app with Flutter, Google Places, Maps API

• State management using BloC.
  
• Impressed Sea Group’s HR during scholarship interview for showing practical perseverance during short amount of learning time.

SKILLS

Javascript

React - Hooks - Redux
Gatsby
Node.js - Express
GraphQL
Typescript

Python

Django
Machine Learning - Data Manipulation - Data Visualization

AWS

Lambda
Amplify

Database

PostgreSQL

Flutter

Firebase - BloC

C++

Data Structures and Algorithms

LANGUAGES

English: Fluent
Indonesia: Native