Who Am I?

• Maintaining and improving ETL pipelines and batch jobs behind daily operations (Python, AWS Batch, Airflow), including web-scraper jobs, with 4 other engineers.
• Upgrading Superset 3 to 6 along with Docker to Kubernetes and SQLite to PostgreSQL migrations.
• Migrated AWS batch job authorization from long-lived tokens to IAM roles.
• Established naming conventions for Kafka topics and AWS SQS queues.

• Built the Sequence feature on Sales Marker's main services (Go, TypeScript, React.js) in a 4-engineer team.
• Overhauled a prototype form-filling service into LLM-driven automation, building a test suite, output-quality evaluation cases, and a dashboard for tracking agent results.
• Led three customer-facing feature projects end-to-end, from planning to production release.
• Set up CI/CD for two undocumented services and wrote the handoff docs.

• Designed, implemented, and maintained GraphQL APIs integrated into Vue.js/Nuxt.js features for a B2B SaaS HR platform, while initiating a Kotlin migration in a ~20-engineer organization spanning Rails, Next.js, and Nuxt.js services.
• Architected an audit log system recording every change to SQL data, archiving logs older than 6 months to S3, reading archives directly from S3, and syncing with the company-wide audit system.
• Improved the onboarding experience for new engineers by improving project set-up duration from around 1 week to just 1 day.
• Architected a navigation system to seamlessly navigate between Next.js pages, Nuxt.js pages, and Nuxt-within-Next pages, accelerating the Next.js migration.
• One of the initiators of the Rails-to-Kotlin migration; wrote two feature migration plans.
• Led a two-person project to simplify the application's permissions system, improving user experience and creating a coordinated release process for users and engineers.

• Owned and maintained all five accommodation demand post-purchase services (booking, reschedule, and refund)—built with Java 8 and Spring Boot—in a 3-engineer team.
• Led the Spring Boot 1.5 to 2 upgrade of my team's core service, cutting CPU usage from ~41% to just ~13%.
• Refactored the booking API to make it more readable and to prevent hotel double-booking, reducing customer complaints.
• Served as the interim point of contact for the multi-currency feature, keeping stakeholders and engineers aligned on delivery.

• Owned and maintained the order feature on the backend (in TypeScript) with 4 other engineers.
• Architected the order system of the application, enabling users to create orders.
• Integrated Shipper.id's shipping API end-to-end, improving the seller experience from order creation through order shipment.

Perayaan Wisuda Juli (July Graduation Celebration) is one of many prestigious events in my university. On 2021, I was given the honor to work as the head of development for the event's website.

On this project, I was also responsible as a fullstack developer and a dev-ops engineer. Although I had many roles, my work mostly consists of:

• Worked with my vice-project-manager to plan the project and manage a team of 11 developers
• Worked with another engineer to create a CI/CD pipeline
• Worked with another engineer to create the database and back end system
• Worked with other engineers to make new features for the website and fix bugs
• Deployed the website and the back end server to a DigitalOcean droplet
• Worked with my vice-project-manager to review pull (merge) requests on the project

Arkavidia is a national event held by my student's association. Arkavidia 7.0 consisted of webinars, webtalks, and programming-related competitions.

On this event, as part of the comittee, I was responsible for creating creative CTF problems for the competitor.

During my time as an intern at CoLearn, I was tasked to optimize machine learning algorithm by evaluating over 10,000 pictures from machine learning predicition.

I also optimized my team's workflow by creating a Python script to automatically download JSON data from an API and then automatically parsing it into a CSV file.

At this intern, I worked on a new product by Wardaya College with 3 other software engineers. I, was responsible on creating back-end APIs and DB Schema.

I was also responsible on administrating a Moodle-based e-learning website with 3 other software engineers.