I am a Backend Developer with 2+ years of professional experience building, optimizing, and scaling enterprise-grade microservice APIs and spatial databases.
- 🏗️ Developed backend systems serving 5,000+ active employees at PT Pelindo.
- 📍 Optimized geospatial databases (PostgreSQL/PostGIS) reducing query latency by up to 50%.
- 🧠 Hold a machine learning research background (CNN/TensorFlow) providing cross-domain technical depth.
- 🛡️ Strengthened cybersecurity competencies through IBM Cybersecurity Fundamentals coursework.
- 🎓 Currently Learning: Java, Spring Boot, and OOP principles to support robust enterprise architectures.
- 💼 Open to Opportunities: Hybrid (Jakarta/Cianjur/Bandung), Remote, or In-Office backend roles.
Optimized complex SQL queries, index structures, and query execution plans for PELINDO's microservices. |
Delivered highly scalable REST APIs for PELINDO's core Knowledge and Learning Management System. |
Designed and indexed geospatial databases using PostGIS & PostgreSQL for high-speed GeoJSON API rendering. |
Researched and built Deep Learning CNN models (EfficientNetB7) for medical imaging classification tasks. |
💻 Languages & Runtime
🚀 Frameworks & Web Engines
🗄️ Databases & Geospatial
⚙️ DevOps & Cloud
📡 Messaging, Auth & API
🧠 Data Science & Machine Learning
🟢 Professional Development · Job Search & Skill Enhancement — Feb 2026 – Jun 2026
Focus: Systems security, concurrent backend architectures, and new stack adoption.
| Key Tech | |
|---|---|
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Network Security · Threat Detection · Secure Coding |
- Successfully navigated a multi-stage recruitment process at PT KCIC, advancing to the final medical check-up phase before process discontinuation.
- Strengthened cybersecurity core competencies through IBM (Cybersecurity Fundamentals) coursework.
- Expanded multi-language backend capabilities by studying Go (concurrency, goroutines) and Java (OOP, Spring ecosystem).
🟡 Freelance AI Engineer · PT Sigma Cipta Utama — Dec 2025 – Jan 2026
Client: PT Pertamina
| Key Tech | |
|---|---|
    |
ML · Statistical Analysis · Data Modeling |
- Accelerated PT Pertamina's data-driven decision-making by collecting, cleaning, and processing raw operational datasets under the Metadata Management & Data Analytics Solution project.
- Developed and maintained ML-based data modeling pipelines to transform unstructured data into business insights.
🔵 Junior Backend Developer · KMPlus Consulting — Jan 2023 – Sep 2025
Client: PT Pelabuhan Indonesia (PELINDO)
| Key Tech | |
|---|---|
     |
MySQL · Redis · Jenkins · ArgoCD |
- Developed scalable microservice REST APIs for PELINDO's Knowledge, Learning, Talent & Culture Management System, serving 5,000+ employees.
- Reduced average database response time by 80% via optimized joins, indexing, and query plan analysis.
- Led debugging cycles and code reviews, contributing to measurable reduction in production errors.
🟣 Backend Developer Intern · PT Teknologi Mulia Sejahtera Cemerlang — Aug 2022 – Dec 2022
| Key Tech | |
|---|---|
   |
PostGIS · Agile · UAT |
- Delivered WebGIS backend APIs with PHP CodeIgniter, reducing project delivery delays within 5 months.
- Improved geospatial query performance by 50% via spatial indexing and geometry type selection.
- Increased data processing throughput by 40% through schema optimization and pipeline improvements.
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Engineered real-time GeoJSON delivery APIs backed by PostGIS, enabling sub-second map rendering. Built automated report routing logic and secured platform data with JWT/OAuth2.
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Architected a full LMS backend supporting 500+ daily active users with zero-downtime deployments over a 2-year production lifecycle. Built modular API integrations and role-based access.
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| 🎓 |
B.E. Electrical Engineering — Indonesia University of Education (UPI) Jul 2019 – Aug 2024 · GPA: 3.44 / 4.00 · Major: Electrical · Minor: Telecommunication Thesis: Lung X-ray disease classification using CNN (EfficientNetB7) in TensorFlow/Keras — defended with commendation. |
| Certification | Issuer | Date | |
|---|---|---|---|
| ☁️ | Microsoft Azure Essentials Professional Certificate | Microsoft | Jul 2026 |
| 🐹 | Software Engineer & Go (Basic) | HackerRank | Jun 2026 |
| 🛡️ | Cybersecurity Foundation | Palo Alto Networks | Jun 2026 |
| 🛡️ | Cybersecurity Fundamental | IBM | May 2026 |
| 🛢️ | Level 1 Well Control Awareness | IWCF | Apr 2026 |
| 🐙 | Getting Started with Git and Github | IBM | Aug 2025 |
| 💛 | JavaScript (Intermediate) & REST API (Intermediate) | HackerRank | Sep 2024 |
| 🗣️ | PTESOL — English Proficiency | UPI | Jul 2024 |
| 📊 | SQL (Advanced) & Problem Solving (Basic) | HackerRank | Dec 2023 |
| 🐍 | Python for Data Science, AI & Development | IBM | Jul 2023 |
| 💻 | JavaScript Back End Developer | Binar Academy | Jul 2022 |
| 🟢 | Node.js (Basic) | HackerRank | Jul 2022 |
| 🛠️ | Technical Support Fundamental & Computer Networking | Jul 2022 |
