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Viko Wijaya

Viko Wijaya

Mid Fullstack Developer

Jubelio | Indonesia

Technologies

My Portfolio Highlights

My New Course

Developing AI Systems with the OpenAI API

My New Course

Developing AI Systems with the OpenAI API

Data gardener, nurturing insights to bloom and thrive in the data ecosystem.

My Work

Take a look at my latest work.

course

Introduction to Embeddings with the OpenAI API

PythonSQLShell
course

Vector Databases for Embeddings with Pinecone

PythonSQLShell
course

Developing AI Systems with the OpenAI API

PythonSQLShell
course

Introduction to Embeddings with the OpenAI API

PythonSQLShell

DataCamp Course Completion

Take a look at all the courses I’ve completed on DataCamp.

Courses

Introduction to Python
Introduction to SQL
Intermediate SQL
Intermediate Python

My Work Experience

Where I've interned and worked during my career.

Jubelio | May 2020 - Present

Mid Full Stack Developer

1. Optimized Queue Management in Sync Stock V2: - Increased queue processing speed by 45% by categorizing tasks based on store type, preventing queue congestion. - Reduced setup time by 60% through streamlined environment configuration. - Employed NodeJS & TypeScript, MongoDB, RabbitMQ, and Docker for tech stacks. 2. Streamlined Tokopedia Sync Stock and Logging: - Attained a 30% reduction in sync time by refining Tokopedia integration code. - Implemented a focused sync approach, synchronizing only selected product variations, enhancing accuracy and efficiency. - Restructured the logging system for improved traceability, converting consolidated data into individual entries. 3. Maintained Audit Trail with PostgreSQL and HStore: - Ensured data integrity by leveraging PostgreSQL's audit trail feature with HStore. - Adapted and enriched the database log, guaranteeing accurate historical records. 4. Implemented and Managed Archiving Feature for Performance Enhancement: - Leveraged PL/PGSQL in PostgreSQL to introduce an archiving feature, significantly boosting app responsiveness for high-data-volume clients. - Realized a remarkable 60% improvement in performance. 5. Optimized Database Tables with Partitioning: - Doubled query speed for tables with substantial data by implementing partition tables in PostgreSQL. 6. Root Cause Analysis and Remediation for Overselling Issues: - Successfully identified and rectified overselling instances, addressing seller-side discrepancies, marketplace API anomalies, and app-related bugs. 7. Daily Customer Service Issue Resolution with JIRA: - Demonstrated in swiftly resolving daily customer service issues using JIRA.
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Ayo Tani | Aug 2019 - Apr 2020

Full Stack Developer

1. Develop an Agriculture Investment App: - Developed a cutting-edge agriculture investment platform from concept to execution. - Implemented Kotlin for Android. 2. Develop Web with Laravel: - Utilized Laravel for the web. 3. Streamlined Backend Operations with Go: - Using Go for backend, and improved system efficiency. 4. Enhanced Data Management with PostgreSQL: - Implemented PostgreSQL as the database solution, ensuring robust data storage and retrieval.

IT Provent | Oct 2016 - Apr 2020

Back End Developer

1. Pioneered API Development for Android FinTech App "Toko Pandai": - Successfully integrated Bank Mandiri API, enabling seamless transactions between Unilever retailers and distributors through the app. - Facilitated direct payments and transfers. 2. Introduced PPOB Feature Set: - Implemented diverse services including Electricity Token, BPJS Kesehatan, PDAM, and Cable TV & Internet payments within the app. 3. Managed Diverse FMCG Portfolios: - Oversaw a range of Fast Moving Consumer Goods from industry leaders like Unilever, Godrej, Walls, and Lakme. 4. Optimized CSV Import Capability: - Engineered an enhanced CSV import module capable of handling up to 50 million rows of invoice data using SQL Dump.

Apple Developer Academy | UC | Sep 2019 - Dec 2019

Product Manager

Create an app called QrirQ, pronounce Kurirku. Courier platform app that help online seller to find easier, affordable & reliable courier by give them multiple addreses delivery with fixed price. Front End use Swift, technology used MapKit Back End use Go Database use PostgreSQL

Apple Developer Academy | UC | Mar 2019 - Dec 2019

iOS App Developer

N/A

PT. Arius Angkasa Indonesia | Dec 2018 - Oct 2019

Full Stack Developer

When you join or register as a member of Memberku, you will obtain a benefit. Example, when you eat on McD then upload the struct to Memberku, you will get money. The amount of the money according with memberku merchant rates. Also Memberku provide MLM system. Currently there are 3 merchants, McD, Bread Life, and Yoshinoya Backend currently using Laravel and for the Front End using Laravel Blade

Apple Developer Academy | UC | Jul 2019 - Aug 2019

iOS App Developer

Create app called WIT, where you can identify what kind of edible plant is that and you can add the result to your personal note. Also you can filter by the plant name or the morphology Front End use Swift and the technology use Vision Framework, CoreML. Backend use Laravel

Apple Developer Academy | UC | May 2019 - Jun 2019

iOS App Developer

Create app that can help people learn english by speaking with interactive design and awsome story Front End use Swift and the technology used CoreData, Speech and AVFoundation

PT Sarana Multi Infrastruktur (Persero) | May 2018 - Sep 2018

Back End Developer

As Full Stack Developer, Create automaticly fetch data from main database to monitoring database, using Stored Procedure SQL Server with optimize query and Laravel.

Asri Motor | Dec 2017 - Jun 2018

Full Stack Developer

Create web app for admin panel and android app for Asri Motor's customer. They can book for service, test drive, join event and etc. Front end use android (Java) and backend use Laravel

JAC Auto Part | Sep 2017 - Oct 2017

Full Stack Developer

Create products catalog for JAC Auto Part Front end use android (Java) and backend use Laravel

Artha Transindo | Aug 2016 - Jan 2017

Full Stack Developer

N/A

Hore Home Repair | Mar 2016 - Jun 2016

Full Stack Developer

Create admin panel for hore home repair admin, using firebase and one signal for send push notification to android and receive notification in web.

Bumi Indah Group | Oct 2015 - Mar 2016

Part Time

Research real time notification using laravel, node js, and socket io.

MyMe Tala International | Jun 2015 - Sep 2015

Internship

Create Sales Force Application web and API for admin and for android

My Education

Take a look at my formal education

Bachelor's degree, Computer ScienceUniversitas Ciputra Surabaya | 2016

About Me

Viko Wijaya

As a Full Stack Developer, I manage stock sync, queue management, shipment labels, and audit trails using NodeJS, MongoDB, RabbitMQ, Redis, Docker, PostgreSQL, and ReactJS. I optimize code for efficiency and enjoy learning new technologies.

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