Feb 2026
Feb 2026
Susbase
JS/TSNextjsSupabasePayloadCMSTailwindcss
Jan 2026
Jan 2026
Tangkal
TypeScript
Jan 2026
Jan 2026
Samar
JS/TS
Dec 2025
Dec 2025
Protect My Design
NextJSSupabaseShadCNTailwindCSS
Sep 2025 — Dec 2025
Sep 2025 — Dec 2025
Online Programming Tutor
No Association
Jul 2025
Jul 2025
Stira Paradise Resort
NextJSTailwindCSS
Jan 2025
Jan 2025
Santorini PASP
NextJSTailwindCSS
Jul 2024
Jul 2024
Data Engineer
Orang Tua Group
Jun 2024 — Jun 2024
Jun 2024 — Jun 2024
Software Tester
No Association
Jan 2024
Jan 2024
BCOOL Palembang
NextJSTailwindCSSShadCN
Oct 2023
Oct 2023
ANALISIS NILAI K PADA ALGORITMA K-NN UNTUK MENGKLASIFIKASIKAN WAJAH KANTUK
PythonScikit-LearnNumpyPandas
Aug 2023
Aug 2023
Google SEO Fundamentals
Google
Jun 2023 — Jun 2024
Jun 2023 — Jun 2024
IT Business & Operations
PT Bong Maju Mapan - Cozylila
Mar 2023
Mar 2023
Project Initiation: Starting a Successful Project
Google
Mar 2023
Mar 2023
Foundations of Project Management
Google
Mar 2023
Mar 2023
An Official Introduction to AWS
Trainocate Indonesia
Feb 2023
Feb 2023
Founder
PT Virya Makmur Abadi
Feb 2023
Feb 2023
Full-Stack Engineer Career Path
Codecademy
Oct 2022
Oct 2022
Unito - Financial Super Apps
FigmaFlutter
Sep 2022
Sep 2022
Cats and Dogs Image Classification
PythonTensorflowKerasPandasNumpy
Jul 2022
Jul 2022
M001: MongoDB Basics
MongoDB
Jun 2022
Jun 2022
Neural Networks and Deep Learning
Coursera
May 2022 — Jul 2022
May 2022 — Jul 2022
Web Developer
Netsprogram
Mar 2022
Mar 2022
Learn Python 3 Course
Codecademy
Mar 2022
Mar 2022
Learn CSS Course
Codecademy
Mar 2022
Mar 2022
Learn CSS Course
Codecademy
Jul 2021 — Aug 2021
Jul 2021 — Aug 2021
Web Developer
IO Dev
Feb 2020 — Apr 2020
Feb 2020 — Apr 2020
Sales Promotion
PT Bong Maju Mapan - Cozylila
Dec 2019 — Dec 2023
Dec 2019 — Dec 2023
Bachelor's degree, Computer Science
Bunda Mulia University
Sep 2019 — Sep 2019
Sep 2019 — Sep 2019
Sales Promotion
PT Willbern Autoprima Indonesia
May 2019 — Sep 2019
May 2019 — Sep 2019
Sales Promotion
PT Bong Maju Mapan - Cozylila
Dec 2015 — Dec 2018
Dec 2015 — Dec 2018
Santo Lukas Penginjil
Graduated High School, Natural Sciences
About
I’m a systems-focused software engineer working at the intersection of software, data, and infrastructure. I build production-grade systems with a strong emphasis on security, scalability, and long-term reliability. With ownership, I make complex systems into stable, dependable foundations.
Experience
Online Programming Tutor
Sep 2025 — Dec 2025No Association• Indonesia - USAself-employed
- Designing and delivering structured curriculum covering Python programming, data structures & algorithms, and software engineering fundamentals.
- Providing 1:1 and group tutoring sessions tailored to different learning styles and goals.
- Breaking down complex concepts into simple, beginner-friendly explanations.
- Preparing guided practice exercises, coding challenges, and mini-projects to reinforce learning.
- Mentoring students in applying problem-solving techniques and debugging strategies.
- Supporting students in exploring potential career paths in IT, software development, or related fields.
Data Engineer
Jul 2024 — PresentOrang Tua Group• Jakarta, Indonesiafull-time
- Designed, developed, and maintained ETL workflows to ensure smooth data integration across multiple systems.
- Created, optimized, and maintained stored procedures in Vertica and Sybase to support business operations.
- Developed and customized reports with FineReport, handling both data processing and report design.
- Optimized complex queries by leveraging AI-assisted improvements, reducing query execution time from 50 minutes to 3 minutes and boosting efficiency in reporting processes.
- Calculated daily, weekly, and monthly sales incentives, supporting financial accuracy and transparency.
- Helped troubleshoot and resolve issues in running application reports, ensuring data accuracy, stability, and timely delivery.
- Collaborated cross-divisionally to align data requirements with business objectives and ensure accuracy of reporting deliverables.
- Reported directly to supervisors with actionable insights and performance updates to support business decision-making.
Software Tester
Jun 2024 — Jun 2024No Association• Jakarta, Indonesiafreelance
- Tested a library web apps
- Used Selenium and Mocha tools
- Created a test case scenario for each functionality (sign in, sign up, borrowing, etc)
- Reported the process
IT Business & Operations
Jun 2023 — Jun 2024PT Bong Maju Mapan - Cozylila• Jakarta, Indonesiainternship
- Managed Ginee ERP software
- Conducted ERP training
- Provided technical knowledge to the Board of Directors
- Resolved technical problems in under an hour
- Maintained Ginee ERP using automation skills
- Collaborated with the marketing and warehouse divisions
Founder
Feb 2023 — PresentPT Virya Makmur Abadi• Jakarta, Indonesiafull-time
- Defined company vision, positioning, and service architecture across design, development, and digital services, aligning offerings with SME market demand.
- Owned end-to-end business strategy: pricing models, go-to-market execution, client acquisition, and revenue growth.
- Led client discovery, solution scoping, and proposal strategy for web, e-commerce, and custom software projects.
- Oversaw delivery quality and execution standards across design, development, and creative outputs to ensure client satisfaction and retention.
- Built and managed cross-functional teams (designers, developers, freelancers), including hiring, delegation, and performance oversight.
- Acted as primary decision-maker for product, technology stack, and operational workflows.
- Managed financial planning, budgeting, and cost control to maintain profitability and operational sustainability.
- Established internal processes for project management, client communication, and delivery timelines.
- Handled strategic partnerships, vendor selection, and third-party integrations.
- Represented the company in client negotiations, stakeholder discussions, and brand-facing communications.
Web Developer
May 2022 — Jul 2022Netsprogram• Jakarta, Indonesiafreelance
- Wrote a PHP source code in CodeIgniter framework
- Maintained project using Git version control
- Provided training for client
Web Developer
Jul 2021 — Aug 2021IO Dev• Jakarta, Indonesiaself-employed
Sales Promotion
Feb 2020 — Apr 2020PT Bong Maju Mapan - Cozylila• Jakarta, Indonesiafreelance
Sales Promotion
Sep 2019 — Sep 2019PT Willbern Autoprima Indonesia• Jakarta, Indonesiafreelance
Sales Promotion
May 2019 — Sep 2019PT Bong Maju Mapan - Cozylila• Jakarta, Indonesiafreelance
Projects
Samar is a Shadow Workspace Manager designed to let AI Agents (like Claude, Gemini, or Devin) edit your code safely. Inspired by the Indonesian language "samar" which is disguised. The tool is made for people who work with the code agent to prevent the agent from reading secret files. Because instructions are not enough.
JS/TS
Stira Paradise Resort
A single page landing page for Stira Paradise Resort in Team 37.
NextJSTailwindCSS
Santorini PASP
A single page landing page for Santorini PASP. A real-estate developer in Kawasan WisataPantai Alfath Stira ParADIse, Serang
NextJSTailwindCSS
BCOOL Palembang
A simple business landing page for CV. BCOOL PALEMBANG that supplies e-commerce packing needs.
NextJSTailwindCSSShadCN
ANALISIS NILAI K PADA ALGORITMA K-NN UNTUK MENGKLASIFIKASIKAN WAJAH KANTUK
A final thesis project to find the best K values in K-NN ML Algorithm to classify drowsy drivers.
PythonScikit-LearnNumpyPandas
Unito - Financial Super Apps
Unito is a hackathon project by Edsen Consulting designed to address financial challenges in Jakarta. The main idea is to unify all financial apps through Unito. This app is a prototype.
FigmaFlutter
Cats and Dogs Image Classification
A side project with my college friend, Feri Andika, to classify whether the image is a dog or a cat.
PythonTensorflowKerasPandas+1
Education
Bachelor's degree, Computer Science
2019 — 2023Bunda Mulia UniversityGPA: 3.81
- Head of Computer Science Major Organization (BIOS).
- Member of the Student Research & Development Computer Science Major Organization (BIOS).
- Student Mentor.
- Welcoming Freshmen Mentor.
- Collaborate with other major to manage event.
- Attend 39 events held by university.
- Manage & design social media for Computer Science Major Organization (BIOS).
- Top 8th Finalist Hackathon held by Edsen.
- Rewarded 1.5 million rupiah for finding vulnerability in university student portal.
- Mentored 2 Welcoming Freshmen groups with total of 40 freshman students.
- Recognized by lecturer and dean of the university.
Santo Lukas Penginjil
2015 — 2018Graduated High School, Natural SciencesGPA: 70.25
Organizations
Test Score
IQ Test
IQ Test AcademyIQ•Nov 2021
Recognition
Google SEO Fundamentals
Google•Aug 2023
certificationProject Initiation: Starting a Successful Project
Google•Mar 2023
certificationFoundations of Project Management
Google•Mar 2023
certificationAn Official Introduction to AWS
Trainocate Indonesia•Mar 2023
certificationFull-Stack Engineer Career Path
Codecademy•Feb 2023
certificationM001: MongoDB Basics
MongoDB•Jul 2022
certificationNeural Networks and Deep Learning
Coursera•Jun 2022
certificationLearn Python 3 Course
Codecademy•Mar 2022
certificationLearn CSS Course
Codecademy•Mar 2022
certificationLearn CSS Course
Codecademy•Mar 2022
certificationLanguages
Chinese (Simplified)Limited Working
English U.SFull Professional
Bahasa IndonesiaNative Bilingual
Most Used Languages
JS/TS
Python
Dart
Rust
C/C++
Most Used Frameworks
TailwindCSS
NextJS
PayloadCMS
ShadCN
Motion
Most Used DB
Supabase
Vertica
MongoDB
Firebase
SurrealDB
Dev Tools
Now
Mood
Working
Building
Deliverra
Learning
48 Laws of Power
Web Metrics
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Latest Thoughts
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High-Throughput vs High-Reliability: Which One Should You Aim for First?
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What Bootcamps Don’t Tell You About Becoming a Software Engineer
Bootcamps sell speed and certainty in an industry that has neither. Becoming a software engineer takes more than three months, more than frameworks, and more than job-ready promises. This is what usually gets left out.
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How I Handled a “Difficult” Client (and Fixed My Own Mistake)
This blog tells the story of a website project that was flawed from the start due to poor professional decisions. Without a signed agreement and with loose boundaries, communication issues and delays surfaced. The story concludes when the author takes responsibility, pauses the project, enforces proper process, and restores control through structure and clarity.
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