# Joshua Dirga

> CS @ Cornell University | prev GoTo Financial Data Science Intern

Location: Ithaca, New York, United States
Profile: https://flows.cv/joshuadirga

Hi! I am a sophomore studying CS at Cornell University. At Cornell I am a part of the project team Cornell Appdev as a backend subteam lead and as the course instructor for CS 1998: Intro to Backend! I am also the previous Copresident for the Indonesian Association at Cornell.

## Work Experience
### Backend Subteam Lead @ Cornell App Development (AppDev)
Jan 2026 – Present | Ithaca, NY
Leading the backend sub-team, managing app deployments and team culture!

### Course Instructor @ Cornell App Development (AppDev)
Jan 2025 – Jan 2025 | Ithaca, NY
Course Instructor for a 2-credit backend development class (Python, Flask, Docker, GCP) with 80+ students. Led curriculum revamp and TA coordination, improving engagement and overall performance for 2 semesters.

### Backend Subteam Member @ Cornell App Development (AppDev)
Jan 2024 – Jan 2025 | Ithaca, NY
Member of Cornell Appdev backend subteam. Worked on Uplift (gym app) for two semesters, Hustle (marketplace app) for one semester, served as course instructor for two semester, and super happy to be on the team!

### Software Engineer @ The Single Cask
Jan 2024 – Present | United Kingdom
Developed and deployed custom CRM managing 600+ contacts and 50+ suppliers using React, Next.js, and PostgreSQL
Built automated client notifications and data management features with 500+ CRM actions
Migrated operations from Excel to scalable platform with 4-tier user access control and Microsoft SSO authentication

### Data Science Intern @ GoTo Group
Jan 2025 – Jan 2025 | Jakarta, Indonesia
Enhanced deepfake detection model to 99.8% accuracy by generating 3000+ synthetic deepfakes using 3 techniques
Optimized voice AI system handling by 55% using caching, for 400+ concurrent calls, and improved contact rates by 2%
Generated 1000+ challenging deepfakes with 66.5% success rate using GPT-Image-1 and explored L2CS gaze detection

### Co President @ Indonesian Association at Cornell
Jan 2024 – Jan 2025 | Ithaca, NY
Led community, social media, and documentation teams to boost event engagement by 30%.
Organized IndoNight and 9+ events, welcoming 80+ students and strengthening cultural community ties.

### Software Engineer @ AstroDoc.
Jan 2024 – Jan 2025 | Las Vegas, NV
Engineered user authentication system featuring 7+ React Native screens with secure OTP verification protocols
Architected scalable backend using Appwrite and custom Node.js functions for robust user session management
Optimized HIPAA-compliant healthcare communication, integrating Spruce API and slashing database queries by 90%

### Data Science Intern @ GoTo Group
Jan 2024 – Jan 2024 | Jakarta, Indonesia
Monitored daily steganography injections from production and created visualizations
Led testing as white hat hacker for ISO certification project, identified weaknesses and contributed to achieving 99% TAR at 1% FAR metric
Benchmarked and presented case studies on backend model designed to verify genuine users
Mined deepfake data and trained a deepfake detection model to block attackers using deep fake software in injection attacks

### Research Analyst Intern @ PT Trimegah Asset Management
Jan 2023 – Jan 2023 | Jakarta, Indonesia
Developed a program to identify desirable characteristics of stocks in the Indonesian market using historical data
Researched technology and internet sector

### Speaker @ TEDx
Jan 2022 – Jan 2022 | Tangerang Selatan, Banten, Indonesia
Gave a talk on technology and the metaverse, uploaded on TEDx Talks Youtube Channel “Catching Up to Science Fiction”. Organized TEDx@SWA 2023 and coached internal speakers.


## Education
### Bachelor of Science - BS in Computer Science
Cornell University
Jan 2023 – Jan 2027

### High School Diploma
Sinarmas World Academy
Jan 2020 – Jan 2023

### Junior High School
Santa Laurensia
Jan 2018 – Jan 2020


## Contact & Social
- LinkedIn: https://linkedin.com/in/joshua-dirga

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Source: https://flows.cv/joshuadirga
JSON Resume: https://flows.cv/joshuadirga/resume.json
Last updated: 2026-04-01