* Led development of new payment methods (Virtual Account and E-Wallet) by integrating with 3rd party payment gateway* Integrated existing sales commerce system with JD (Jīngdōng) which included product curating, warehouse inbound, and commerce sales system* Led new Ramadhan Big Sale project within 2 weeks resulting in more transactions and $20.000 in sales in the first month* Developed Mapan's new commerce features such as voucher, warehousing, SKU (Stock Keeping Unit)bundling, and backoffice to support the business and operational team* Rewrote legacy systems logic and queries, resulting in performance improvement of up to 10x* Pair with other software engineers and also mentor new joiners making the onboarding process smoothly* Maintain 9 Mapan's microservices using Go, Redis, Postgres, Apache Kafka, and Kubernetes

* Built and Integrated Tunaiku payment system with 3rd party payment gateway which included Credit Card, Debit Card, Virtual Account, E-Wallet, and Bank Transfer options* Revamped user onboarding and saving process of the core banking system. This integration automated most user journeys ranging from new user registration, account menu, and saving features, speeding up bank transactions from 1-2 business days to 5 seconds* Worked in a team of 9 people developing a new mobile banking backend system within 2-month consisting of new user onboarding, saving, transaction history, and wishlist feature* Developed an email notification system that connected to Mailchimp for user's saving information andmarketing email blast

* Teaching students about programming material such as Algorithm, Data Structure, Database, and WebDevelopment* Making assignments, exams, and project cases for Computer Science students* Grading students' assignments, exams, and final project answers