About
Hi! I’m Justin Chow, a software engineering enthusiast currently studying Informatics at the Sepuluh Nopember Institute of Technology (ITS). I’m passionate about building scalable and impactful web applications that make a difference. Over the years, I’ve worked on projects like SPMB Surabaya, a high-traffic official student admission portal across Surabaya, which challenged me to think critically about performance, clean architecture, and user experience.
I specialize in frontend development using tools like Next.js, Tailwind CSS, and TypeScript, and I enjoy bringing intuitive designs to life while collaborating with backend developers and UI/UX teams. I also have experience in backend development, using technologies like Go to build robust APIs and server-side logic that power seamless user experiences.
My experience extends beyond project work. I’ve also served as an assistant lecturer for Linear Algebra and Fundamental Programming, where I helped students grasp complex technical concepts and sharpened my communication and leadership skills.
Outside the classroom, I actively participate in campus organizations such as Schematics ITS, Ini Lho ITS, ITS EXPO and UKM EXPO, where I’ve contributed to web development efforts and code quality improvements. I’m also a proud recipient of the Bakti BCA Scholarship and have earned national-level awards in programming and mathematics. I’m always eager to learn, grow, and contribute to meaningful tech initiatives.
Education
Sepuluh Nopember Institute of Technology (ITS)
Aug 2023 - Present
- ▹Undergraduate Degree of Informatics Engineering
- ▹GPA: 3.92/4.00 (80 credits)
- ▹Related courses: Software Design, Web Programming, Object Oriented Programming, Database System, Database Management, Artificial Intelligence Concepts, Machine Learning, Network Programming, Computer Network, Data Structure, Operating System
Methodist-3 Senior High School Medan
Jul 2020 - Jun 2023
- ▹Natural Science
- ▹Grade: 97.14/100
- ▹Activities: Class Treasurer 2022-2023, Robotics Club, Designer and Illustrator
Experience
Apple Developer Academy
Junior iOS Engineer
MAR 2026 - PRESENT
- ▹Developing mindful and user-centric iOS applications utilizing Swift and SwiftUI within a collaborative academy environment.
ETZY Tech
2025 - Present
Part-time Software Engineer
MAR 2026 - PRESENT
- ▹Developing a multi-outlet Point of Sale (POS) system, managing the full lifecycle from centralized company configuration to atomic cashier transactions like shift reconciliation and real-time inventory updates.
- ▹Enhancing system reliability and monitoring by implementing Playwright for testing and configuring Signoz and OpenTelemetry on Docker to track errors and performance in real-time.
- ▹Refactoring the internal formbuilder library to support multi-currency inputs and fixing legacy quotation dashboard bugs, ensuring component reusability.
Software Engineer Intern
AUG 2025 - MAR 2026
- ▹Contributed to early-stage architecture and component development for internal company tooling and scalable web applications.
PT Semen Indonesia Logistik
Project Manager Intern
FEB 2026 - PRESENT
- ▹Leading an engineering team to build a subsystem driver management platform, overseeing everything from task delegation to final delivery.
- ▹Managing daily operations by leading scrums, assigning tasks, and driving cross-team collaboration to keep the development cycle moving efficiently.
- ▹Coordinating across teams to align technical dependencies and ensuring our platform integrates smoothly with other subsystems, strictly prioritizing UI/UX improvements while keeping content static for a portal revamp.
CREA Digital Ventures
Software Engineer Intern
DEC 2025 - MAR 2026
- ▹Contributed to the development of custom ERP solutions, focusing on streamlining complex business process flows to enhance operational efficiency for clients, including revamping UI/UX and reducing technical debts.
- ▹Engineered interactive analytical dashboards by implementing ETL (Extract, Transform, Load) processes to aggregate data from multiple sources, empowering clients with actionable insights.
- ▹Resolved critical N+1 query bottlenecks in the pricelist module by implementing bulk stock aggregation strategies, reducing database queries by ~98% and accelerating page load times by up to 50x.
Projasa
Software Engineer Intern
OCT 2025 - FEB 2026
- ▹Led the software engineering intern team in the end-to-end development of a robust blood donation management platform for PMI Surabaya, overseeing system requirements, database design, and sprint execution.
- ▹Initiated a paperless strategy by digitizing manual workflows for moving blood bags between departments, improving operational efficiency.
- ▹Created a CI/CD pipeline using GitHub Workflows to automate testing and deployment to a VPS environment, reducing manual release errors.
- ▹Developed core modules and engineered APIs to integrate IoT, ensuring seamless real-time data synchronization between blood testing machines and the backend system.
SPMB Surabaya 2025
Frontend Developer
JAN 2025 - JUL 2025
- ▹Developed and maintained the official admission portal for new student enrollment across Surabaya under the Surabaya Department of Education.
- ▹Refactored legacy React class-based OOP code into Next.js and Tailwind CSS, optimizing performance with Server Side Rendering (SSR) to efficiently handle high traffic.
- ▹Applied clean code principles and scalable architecture to ensure maintainability and long-term usability.
Institut Teknologi Sepuluh Nopember (ITS)
2024 - 2025
Assistant Lecturer of Data Structure
JAN 2025 - JUN 2025
- ▹Responsible for teaching the students of the assigned class about Data Structure.
- ▹Helped the lecturer in teaching the class during class periods, grading the students' assignments or tests.
- ▹Provided assistance for the students in need, and managed as well as created problems for the Practicums.
Assistant Lecturer of Linear Algebra (IUP Class)
AUG 2024 - DEC 2024
- ▹Responsible for teaching the students of the assigned class about Linear Algebra.
- ▹Discussed and reviewed quiz questions, and helped the students to understand the material well.
- ▹Helped the lecturer in teaching the class during class periods and grading the students' assignments or tests.
Assistant Lecturer of Fundamental Programming
AUG 2024 - DEC 2024
- ▹Responsible for teaching the students of the assigned class about Fundamental Programming.
- ▹Helped the lecturer in teaching the class during class periods, grading the students' assignments or tests.
- ▹Provided assistance for the students in need, and managed as well as created problems for the Practicums.
Achievements
[International] Top 100 Global Rank (33rd) - Indonesia Young Coders League: Level Up!
Oct 2025
Secured a 33rd place ranking on the official Global Leaderboard in an international competitive programming event organized by Mekari (Indonesia #1 SaaS company) and Money Forward (Japanese Fintech leader).
[Scholarship] Bakti BCA Scholarship Awardee
Dec 2024
Bakti BCA is a scholarship program that was issued by PT. Bank Central Asia Tbk. I am selected to be one of the 700 students from over 10,000 applicants to receive this scholarship.
[National] Finalist, Schematics Senior National Programming Contest 2023
Oct 2023
Schematics National Programming Contest (Schematics NPC) is a national-level programming competition organized by the Department of Informatics at the Institut Teknologi Sepuluh Nopember (ITS). This competition assesses logicalthinking abilities and the capability to analyze algorithms and programming in solving given problems. Participants in Schematics NPC will be challenged to solve a problem by creating a computer program.
[National] Gold Medalist in Mathematics at OSPAN National Competition
Sep 2022
Olimpiade Siswa Prestasi Akademik Nasional (OSPAN) is a national competition between more than 2500 students all over Indonesia. I won the gold medal in Mathematics which cover topics such as geometry, algebra, number theory and combinatory.
Projects
SIM News
- ▹Built a full-stack online news website with responsive UI using Next.js, TypeScript, and Tailwind CSS.
- ▹Developed backend REST API with Go (Gin) for auth, article management, and user roles.
- ▹Deployed backend on Azure VM for scalability and reliable access.
UD. Bumi Subur
- ▹Developed a comprehensive web-based ERP system, which consists of POS, Inventory, Sales, and HR ERP modules.
- ▹Create the frontend of the site as the client needs, administration, and also handling the deployment and integration with the backend services.
Signify
- ▹Developed a streamlined document-signing web application designed to simplify and accelerate the signing process.
- ▹Designed and created the frontend UI of the site, also integrating the frontend with the site backend endpoints.
Schematics ITS 2025 IT Dev Expert Staff
- ▹Conducted code reviews to uphold coding standards, best practices, and maintain a clean, scalable codebase.
- ▹Performed quality control to identify and resolve potential issues, ensuring optimal website performance and reliability, and also reviewed responsive, user-friendly features to ensure seamless functionality across various devices and browsers.
Ini Lho ITS 2025 IT Dev Expert Staff
- ▹Conduct code reviews to ensure adherence to coding standards and best practices.
- ▹Perform quality control to identify and resolve potential issues, maintaining a high standard of codebase integrity.
- ▹Create and review website responsive, user-friendly features, ensuring compatibility across various devices and browsers
ITS EXPO 2024 IT Dev Staff
- ▹Collaborate with UI/UX designers to translate design concepts into seamless and engaging frontend experiences.
- ▹Develop and implement animations that bring a dynamic and visually appealing element to the website, enhancing user engagement.
- ▹Create responsive and user-friendly features, and ensuring smooth functionality across various devices and browsers.
UKM EXPO 2024 Web Development Staff
- ▹Translated design concepts into captivating frontend experiences by collaborating closely with UI/UX designers.
- ▹Implemented engaging animations to enrich the website's visual appeal and elevate user engagement.
- ▹Developed interactive features with a focus on user-friendliness, ensuring seamless functionality across different devices and browsers.
Schematics ITS 2024 IT Dev Staff
- ▹Collaborate with UI/UX designers to translate design concepts into seamless and engaging frontend experiences.
- ▹Implementing responsive design for various device using Tailwind CSS.
- ▹Collaborate with backend developer to integrate website logic.