Tersedia untuk peran IT & Cyber SecurityAvailable for select IT & Cyber Security roles

H. RAMADHAN — DIGITAL PORTFOLIO

Hi, I'm Hafiz
Ramadhan

Software Engineer & Cyber Security Enthusiast yang merancang sistem terdistribusi berkinerja tinggi, aplikasi web modern, dan infrastruktur IT yang tangguh. Software Engineer & Cyber Security Enthusiast crafting high-performance distributed systems, modern web applications, and resilient IT infrastructure.

Eksplorasi ProyekExplore Projects

8+

Tahun PengalamanYears Experience

30+

Sistem DirilisShipped Systems

100%

Fokus KeamananSecurity Focused

~/hafiz.sh
Infrastructure Ready Online

Latar Belakang AkademikACADEMIC BACKGROUND

Sarjana Komputer (S.Kom) – Teknik Informatika

Universitas Pamulang • Tangerang Selatan, Banten - Indonesia

IPK 3.52 (Sangat Memuaskan)

2019 - 2023

Fokus: Cyber Security, Software Engineering, dan Project Management. Terpilih mengikuti kompetisi Gemastik XV 2022 Divisi Keamanan Siber. Focus: Cyber Security, Software Engineering, and Project Management. Participated in the Gemastik XV 2022 Cyber Security Division competition.

Skripsi: Pengembangan Sistem Informasi Enterprise Resource Planning (ERP) Fiber to The Home (Studi Kasus: PT Trans Hybrid Communication). Lihat Jurnal Thesis: Development of ERP Information System for FTTH (Case Study: PT Trans Hybrid Communication). View Journal

Work History & LeadershipWork History & Leadership

Rekam jejak dalam menskalakan arsitektur terdistribusi, merilis produk kritikal, dan memimpin tim lintas fungsi. Track record of scaling distributed architectures, shipping critical products, and leading cross-functional teams.

Information Technology Development Team Lead

Current Role Full-time
Agt 2026 - SekarangAug 2026 - Present
PT Sinergi Inti Andalan Prima Tbk (IDX: INET) • Jakarta - Indonesia
  • Memimpin tim pengembangan teknologi informasi dalam merancang dan mengembangkan sistem berskala enterprise.Led the IT development team in designing and developing enterprise-scale systems.
  • Mengawasi seluruh siklus pengembangan (SDLC) dan memastikan standar keamanan serta skalabilitas terpenuhi.Oversaw the entire SDLC ensuring security standards and system scalability were met.
  • Berkolaborasi lintas divisi untuk menyelaraskan solusi IT dengan tujuan strategis bisnis.Collaborated across divisions to align IT solutions with strategic business goals.
FEATURED FLIGHT SYSTEMS & ARCHITECTURE CASES:
CORE INFRASTRUCTURE
broadband.sinergynetworks.com
Sistem manajemen layanan internet broadband terotomatisasi berskala enterprise.
High Availability • Network Ops
CUSTOMER RELATIONS
crm.sinergynetworks.com & sales.sinergynetworks.com
Platform CRM dan pengelolaan pipeline sales terintegrasi.
Lead Tracking • Conversion Rate
PARTNER & CONTENT HUB
mitra.sinergynetworks.com & cms.sinergynetworks.com
Portal mitra bisnis dan manajemen konten terpusat.
Partner Portal • Content Ops
Next.jsNest.jsArgoCDKubernetesGoogle Cloud PlatformCloudflare

Software Engineer

Full-time
Sep 2018 - Agt 2026Sep 2018 - Aug 2026
PT Trans Hybrid Communication • Depok, Jawa Barat - Indonesia

Memimpin tim IT lintas fungsi beranggotakan 7 orang dalam mengelola seluruh siklus pengembangan perangkat lunak. Leading a 7-person cross-functional IT team in managing the entire software development lifecycle.

  • Membangun sistem manajemen internet broadband terotomatisasi yang memfasilitasi operasional bisnis dengan estimasi pendapatan miliaran rupiah per bulan.Building an automated broadband internet management system facilitating business operations with an estimated revenue of billions of rupiah per month.
  • Mengembangkan sistem HRIS yang mengefisienkan manajemen SDM dan memangkas biaya operasional perusahaan hingga Rp20 juta per tahun.Developing an HRIS system that streamlines HR management and cuts operational costs by up to Rp20 million per year.
  • Merancang sistem E-Cabinet untuk mendigitalisasi, mengamankan, dan mempercepat alur korespondensi serta pengarsipan dokumen.Designing the E-Cabinet system to digitize, secure, and accelerate correspondence flow and document archiving.
  • Mengoptimalkan performa dan skalabilitas sistem enterprise untuk memastikan tingkat ketersediaan tinggi.Optimizing enterprise system performance and scalability to ensure high availability.
FEATURED PLATFORMS & ARCHITECTURE CASES:
CORE CONSUMER APP
dukodu.id & corp-dev.dukodu.id
Platform utama dengan ekosistem korporat internal untuk manajemen layanan terpusat.
500,000+ Active Users • High Traffic
CLOUD INFRASTRUCTURE
cloud.transhybrid.net.id
Sistem infrastruktur layanan komputasi awan untuk manajemen sumber daya perusahaan.
Cloud Computing • 99.9% Uptime
NETWORK MAP & CORPORATE
coverage.transhybrid.net.id & transhybrid.net.id
Sistem pemetaan jangkauan jaringan internet broadband secara real-time dan portal utama korporat.
Real-time Mapping • Web Portal
CodeigniterGoNest.jsReact.jsNext.jsAzureMidtransCloudflare

Frontend Developer

Contract
Juli - Sep 2018Jul - Sep 2018
PT Idea Nusantara Cipta • Bogor, Jawa Barat - Indonesia
  • Merancang dan mengembangkan antarmuka pengguna (UI) web yang dinamis, interaktif, dan responsif menggunakan framework AngularJS untuk memastikan pengalaman pengguna yang optimal di berbagai perangkat.Designed and developed dynamic, interactive, and responsive web user interfaces using the AngularJS framework to ensure optimal user experience across devices.
  • Berkolaborasi intensif dengan pengembang backend untuk mengintegrasikan RESTful API secara mulus ke dalam ekosistem aplikasi yang dibangun dengan C#.Collaborated intensively with backend developers to seamlessly integrate RESTful APIs into the C# application ecosystem.
  • Menerjemahkan kebutuhan sistem ke dalam kode sisi klien (client-side) yang bersih, terstruktur, dan mudah dipelihara.Translated system requirements into clean, structured, and maintainable client-side code.
AngularJSC#Azure

IT Support

Full-time
Mei - Juli 2018May - Jul 2018
SMK Informatika Bina Generasi 2 • Bogor, Jawa Barat - Indonesia
  • Memberikan dukungan teknis dan melakukan troubleshooting perangkat keras dan perangkat lunak (laptop, komputer, printer) untuk staf pengajar.Provided technical support and troubleshooting for hardware and software (laptops, computers, printers) for teaching staff.
  • Mendukung operasional entri data pada sistem manajemen pemerintah, termasuk platform PMS, Danabos, dan platform resmi lain, dengan akurasi tinggi.Supported data entry operations in government management systems, including PMS, Danabos, and other official platforms, with high accuracy.
  • Memfasilitasi dan memberikan pelatihan pengembangan web kepada siswa SMK kelas 12 untuk mendukung penyampaian kurikulum teknis.Facilitated and provided web development training to 12th-grade vocational students to support technical curriculum delivery.

Internship Web Developer

Internship
Okt 2016 - Jan 2017Oct 2016 - Jan 2017
Agribisnispedia.com • Bogor, Jawa Barat - Indonesia
  • Menguasai fondasi dasar pengembangan web sisi backend secara mendalam.Mastered the fundamental basics of backend web development deeply.
  • Mengembangkan keterampilan dalam pembuatan website melalui pengalaman langsung menggunakan WordPress dan Blogger.Developed skills in website creation through hands-on experience using WordPress and Blogger.
  • Membangun keterampilan teknis di bidang desain grafis menggunakan Adobe Photoshop dan CorelDraw untuk menghasilkan konten visual yang profesional bagi platform digital.Built technical skills in graphic design using Adobe Photoshop and CorelDraw to produce professional visual content for digital platforms.
WordpressBloggerCodeigniterAdobe PhotoshopCorelDraw

PENGALAMAN PROYEK (FREELANCE)PROJECT EXPERIENCE (FREELANCE)

Data Security Engineer

Des 2025 - SekarangDec 2025 - Present

PT UPAYA TEHNIK

  • Mengeksekusi pengujian dan integrasi API OpenText untuk memastikan keandalan proses enkripsi dan dekripsi data sistem.Executed testing and integration of the OpenText API to ensure the reliability of the system's data encryption and decryption processes.
  • Mengelola operasional portal asesmen guna mengoptimalkan efisiensi alur kerja dan proses submission bagi developer.Managed the assessment portal operations to optimize workflow efficiency and the submission process for developers.
  • Memfasilitasi program pendampingan dan pelatihan bagi developer mengenai implementasi standar pengamanan data (secure-at-rest).Facilitated a mentoring and training program for developers on implementing data security standards (secure-at-rest).
API OpenText

Backend Engineer

Mar - Agt 2023Mar - Aug 2023

Mahir Farm Nusantara

  • Merancang dan mengembangkan RESTful API yang aman, efisien, dan terukur.Designed and developed secure, efficient, and scalable RESTful APIs.
  • Membangun dan mengoptimalkan arsitektur basis data untuk menangani lonjakan traffic.Built and optimized database architecture to handle traffic spikes.
  • Mengimplementasikan praktik terbaik dalam keamanan sistem dan optimasi kode.Implemented best practices in system security and code optimization.
CodeigniterMySQLMidtrans

Backend Developer

Jun - Sep 2022Jun - Sep 2022

PT Dasa Karya Indonesia (Carinih)

  • Merancang dan Mengembangkan RESTful API untuk integrasi aplikasi mobile dengan GrabFood & GoFood.Designed and Developed RESTful APIs for mobile app integration with GrabFood & GoFood.
  • Mengoptimalkan API eksisting guna meningkatkan performa dan skalabilitas.Optimized existing APIs to improve performance and scalability.
  • Mengintegrasikan layanan logistik pihak ketiga (Lalamove API).Integrated third-party logistics services (Lalamove API).
CodeigniterGrabfoodGojekLalamove

Backend Developer

Jan 2022 - Mar 2024Jan 2022 - Mar 2024

PT Kartini Indonesia

  • Mengembangkan arsitektur sistem backend menggunakan framework CodeIgniter dan Nest.js.Developed backend system architecture using CodeIgniter and Nest.js frameworks.
  • Melakukan integrasi Jack API secara komprehensif.Conducted comprehensive integration of the Jack API.
  • Mengimplementasikan WhatsApp API untuk komunikasi real-time dan automasi notifikasi.Implemented the WhatsApp API for real-time communication and automated notifications.
CodeigniterNest.jsJack APIWhatsApp API

Security Engineer

Okt - Nov 2022Oct - Nov 2022

Komisi Pemberantasan Korupsi (KPK)

  • Mengeksekusi uji ketahanan (resilience testing) pada infrastruktur sistem internal.Executed resilience testing on the internal system infrastructure.
  • Menyusun laporan hasil pengujian dengan rancangan mitigasi.Compiled test result reports with mitigation designs.
  • Merumuskan standar operasional keamanan sistem (security standards).Formulated system security operational standards (security standards).

Security Engineer

Sep - Okt 2022Sep - Oct 2022

PT METRA-NET

  • Melaksanakan uji ketahanan dan evaluasi keamanan pada Sistem Kampus Merdeka.Conducted resilience testing and security evaluation on the Kampus Merdeka System.
  • Mengeksekusi penilaian kerentanan mengacu pada standar metrik CVSS.Executed vulnerability assessments referring to CVSS metric standards.

Backend Engineer

Mar - Apr 2022Mar - Apr 2022

PT. Kreasi Sejahtera Bahagia (NLE)

  • Mengembangkan RESTful API menggunakan CodeIgniter 3 untuk platform live streaming konser Mandalika MotoGP 2022.Developed RESTful APIs using CodeIgniter 3 for the Mandalika MotoGP 2022 live streaming concert platform.
  • Mengintegrasikan infrastruktur AWS untuk mengelola layanan live streaming.Integrated AWS infrastructure to manage live streaming services.
  • Mengimplementasikan layanan Firebase untuk fitur live chat real-time.Implemented Firebase services for real-time live chat features.
CodeigniterFirebaseAWS

Penetration Tester

Feb - Jul 2022Feb - Jul 2022

Tokocrypto

  • Melaksanakan audit dan pengujian keamanan menyeluruh pada Sistem Internal Tokocrypto.Conducted a comprehensive security audit and testing on Tokocrypto Internal Systems.
  • Mengeksekusi pengujian kerentanan pada Smart Contract Token.Executed vulnerability testing on Smart Contract Tokens.

Sertifikasi & KredensialCERTIFICATIONS & CREDENTIALS

EC-COUNCIL Verified

Certified Ethical Hacker (CEH)

ID: ECC3281576049

CYBERWARFARE LABS Verified

Certified Red Team Analyst (CRTA)

ID: CRTA-2011413

THE SECOPS GROUP Verified

Certified AppSec Practitioner (CAP)

ID: 6854704

APISEC UNIVERSITY Verified

Certified APIsec Practitioner (ACP)

ID: Verified Credential

THE SECOPS GROUP Verified

Certified Network Security Practitioner (CNSP)

ID: 7149688

BADAN NASIONAL SERTIFIKASI PROFESI (BNSP) Verified

Pengembang Perangkat LunakSoftware Developer

ID: TIK1426005242023

KEMAMPUAN TEKNISTECHNICAL SKILLS

Programming & Frameworks

PHPJavascriptGoC# React.jsCodeigniterLaravel Express.jsNest.jsEchoAngularJS

Database & Infra

MySQLPostgreSQLMongoDB AzureAWSFirebase Cloudflare WAFRouterOS

Cyber Security

Penetration Testing (VAPT)Smart Contract Security Data Encryption (OpenText)SIEM (Wazuh) CVSS ScoringOWASP

Tools & Others

GithubGitlabMidtrans Mekari QontakGoogle DocsMicrosoft Office

HUBUNGI SAYAGET IN TOUCH

Mari Berkolaborasi!Let's Collaborate!

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hfzrmd@gmail.com

Bogor, Jawa BaratWest Java - Indonesia