Hangga Aji Sayekti | a Passionate Programmer        

Hangga Aji Sayekti
==================

a Passionate Programmer
-----------------------

[Blog](https://hangga.web.id) [Linkedin](https://www.linkedin.com/in/hanggaajisayekti/) [GitHub](https://github.com/hangga) [HackerRank](https://www.hackerrank.com/bazeniancode) [TryHackMe](https://tryhackme.com/p/bazeniancode) [Portfolio](https://hangga.github.io/)  
  

### [Download PDF](print.html)

Skills & Interest
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Development
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Mobile Applications, Machine Learning, Computer Vision, Face Liveness Detection, KYC.

Environtment
------------

RnD, Tools & Library, Software Architechture, Security Awareness.

Soft Skill
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Problem Solving, Leadership, Mentoring, Motivation.

Programming
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*   Java
*   Kotlin
*   Swift

*   JavaScript
*   PHP
*   Pascal

*   C++
*   C

Work
----

Baeldung.com
------------

### Technical Author

#### 2023, September – Present

\- Contribute to articles and tutorials related to the Java/JVM ecosystem.  
\- Create sample projects, including unit testing when required.  
\- Work under an editor's guidance until the article is published.

Tech : Java, Kotlin, Maven, Gradle, Jira, Git, Github

Kredibel.co.id (PT. Kredibel Teknologi Indonesia)
-------------------------------------------------

### Head of Product and Engineering, Mobile Platform

#### 2022 – Present

\- R&D for new feature ideas based on company and user needs.  
\- Solving problems regarding application releases: Google Play Store and Apple Store.

Tech : Google Play Store, Apple Connect, Java, Kotlin, RxJava, Retrofit, Volley, Test Lab, Modularization, Maven Central, Repsy.io, Microsoft Azure, Xcode, Swift, SwiftUI, Alamofire, SwiftyJSON, CoreData, Firebase

### Sr. Software Engineer, Mobile Platform

#### 2020 – Present

– Develop Mobile App ([iOS](https://apps.apple.com/id/app/kredibel-cek-penipu-online/id1659360155) & [Android](https://play.google.com/store/apps/details?id=id.co.kredibel.prod)) from stratch.  
– Develop [Kredibel Vision SDK](https://github.com/kredibel-id/VisionSample-Android).  
– Manage Kredibel Remote Maven Repository for all Java library artifacts.  
– RnD for new tech/library implementation needed.

Tech : Java, Kotlin, RxJava, Retrofit, Volley, Test Lab, Modularization, Maven Central, Repsy.io, Microsoft Azure, Xcode, Swift, SwiftUI, Alamofire, SwiftyJSON, CoreData, Firebase

Freelance
---------

### Full Stack Developer

#### 2020, March – September

– Aplikasi Perpustakaan STPMD “APMD” Yogya.  
– REST API/BackEnd Service TPG Kemenag DIY.  
– Aplikasi Mobile Belanja TPG Kemenag DIY.  
– Zakki Islamic Search.  

Tech : Java, Retrofit, RoomDb, RxJava, Rest-API, Php, Codeigniter, MariaDb, SQL, Json, Java 7/JDK 1.7, GUI-Swing, SqLite, MySql, Html, CSS, RxJava, Google-CSE API

SebangsaNetwork.com (PT. Sebangsa Bersama)
------------------------------------------

### Lead Android Developer

#### 2016 – 2020

– RnD for new tech/library implementation needed.  
– Review, motivate, guide, and help the team solve problems if they have difficulties.  
– Responsible for teamwork, from development to release/production.  
– Create technical tests for new candidates.

Tech : Android Studio, Java, RxJava, Retrofit, OkHttp, Firebase, Dagger, MVP, Gitlab, Google Playstore Dev Console

### Sr. Android Developer

#### 2015 – 2016

– Mentoring junior.  
– RnD for new tech/library implementation needed.  
– Contribute to [Sebangsa](https://play.google.com/store/search?q=sebangsa&c=apps), [Arena](https://play.google.com/store/apps/details?id=com.sebangsa.arena) and “ Q ” projects.  

Tech : Android Studio, Java, RxJava, MVP, Modularization, Retrofit, OkHttp, Socket.io, Gitlab

### Android Developer

#### 2013 – 2015

– Develop [Sebangsa app](https://play.google.com/store/search?q=sebangsa&c=apps) from scratch : main features :  
\- auth, post editor, profile, map, location and group.  
– Maintain and bugfixing.

Tech : Eclipse, Android Studio, Java, Maven, Gradle, SQLite, Retrofit, GCM, Google Analytics, Crashlytics

Universitas Negeri Yogyakarta – UPT Pusat Komputer
--------------------------------------------------

### Programmer

#### 2010 – 2013

– Develop and maintain Student Registration Information System.  
– Develop and maintain Financial Monitoring Information System.  
– Develop and maintain Speedy Internet Services Information System.  
– Develop and maintain SitungRek(for rector candidate vote count).  
– Build website for some seminar, scientific event or workshop.  
– Assisting IT training mentors for Lecturers and Staff and help supporting IT for every campus event.

Tech : PHP, CodeIgniter, MySQL, PostgreSQL, CSS, HTML, JQuery

Freelance – Part time
---------------------

### Full Stack Developer

#### 2009 – 2016

– Develop some applications such as: Edu Games, Test/Exam simulation app and English Toefl test app, computation for student research, Hospital information systems, Inventory systems and POS systems.  
– Create mobile application template/UI Kits and sell on the codester marketplace.

Tech : Php, CodeIgniter, MySQL, PostgreSQL, CSS, HTML, JQuery, Delphi, Interbase, Firebird, Java, Android SDK

CV. Solusi Netindo (Software House)
-----------------------------------

### Programmer ∙ Part time

#### 2008 – 2009

– Develop apps such as Management Information Systems, Inventory System, Airline Ticketing Systems and Ship Port Information System.

Tech : Borland Delphi 6 & 7, Interbase, Firebird, MySql, Microsoft SQL Server, Transact-SQL

CV. Mutiara Tiga Prima (Printing Company)
-----------------------------------------

### Layout Editor & General Staff – Partime

#### 2003 – 2004

– Layout editing using Corel Draw 11.  
– Handling print mirror, print to plate, print to tracing paper(kalkir) and deliver printed script to machine operator.  
– Sometime help finishing if needed.

Tech : Corel Draw 11, Microsoft Word, Windows XP

Teaching
--------

FMIPA - Universitas Negeri Yogyakarta
-------------------------------------

### Guest Teacher/ Trainer

#### 2021, April – June

– Workshop on mobile application development, in order to improve learning and conformity with the industrial world and the meaning of “Kampus Merdeka”.[](https://mat.fmipa.uny.ac.id/id/berita/kuliah-praktisi-tamu-matakuliah-pemrograman-perangkat-mobile-program-studi-matematika-fmipa)  
– Seasons :  
1) Overview : Trends, ideas and tips around mobile development & mobile technology.  
2) Java Programming Basic, Introducing Android Studio IDE & Android Development.  
3) Basic XML Layout, Component handling, Fragment & Activity Livecycle.  
4) Database CRUD with Room Db & image loader with Glide.

Tech : Java 8, XML, Android Studio, RoomDb, Glide, Git & GitHub

SMK Ibu Pawiyatan Tamansiswa
----------------------------

### Kelas 9 Belajar Bareng Sebangsa

#### 2016, October

Sharing about : Membuat Aplikasi Mobile Android Keren.[](https://komunita.id/2016/10/17/sebangsa-sebarkan-semangat-berbagi-dan-membangun-lewat-kelas9/)

Tech : Android Studio, Java

Pondok Programmer – PondokIT.com
--------------------------------

### Android Development Trainer/ Mentor

#### 2014 – 2015

– Teaching, mentoring and motivating.  
– Create curriculum/syllabus, material and some sample project.

Tech : Java, Eclipse IDE, Android SDK, XML, Layouting, Motion animation, Basic Game Development

SMP Muhammadiyah 9 Yogyakarta
-----------------------------

### Teacher of Tilawatil Qur’an ∙ Extracurricular Lessons

#### 2008 – 2009

– Teaching Qur’an with Tartil, Mujawwad and Nagham with 7 maqamat.  
– Intensive lessons for students to prepare for the Musabaqah Tilawatil Qur’an (MTQ) competition.  
– Intensive lessons for student as qori’ to prepare for Islamic holidays and other events.

Freelance Teacher
-----------------

### Mathematics Teacher ∙Yogyakarta

#### 2003 – 2007

Teaching Mathematics privately for Elementary and Junior High School students.

Taman Pendidikan Al-Qur’an Fastabiqul Khairat
---------------------------------------------

### Qur’an Teacher

#### 2000 – 2004

Teaching Iqra, Qur’an, Tartil, Tajwid and Kitabah.

Education
---------

Yogyakarta State University - Indonesia
---------------------------------------

S1/Bachelor, Mathematics

Certificates
------------

#### 2023, June

### Information Security Management System Awareness ISO/IEC 27001:2022[](https://raw.githubusercontent.com/hangga/cv/main/img/Hangga%20Aji%20Sayekti.jpg)

PT Bhinneka Inti Global Data

#### 2023, May

### Ethical Hacking - Mobile Platforms and Network Architecture[](https://olympus1.mygreatlearning.com/course_certificate/FMIJJQZP)

Great Learning

#### 2023, May

### Java Data Structures for Intermediate Level[](https://olympus1.mygreatlearning.com/course_certificate/MYNUEMOL)

Great Learning

#### 2022, July

### Information Security Management System Awareness ISO/IEC 27001:2013[](https://raw.githubusercontent.com/hangga/hangga.github.io/main/images/certificates/iso-hangga.jpg)

PT Bhinneka Inti Global Data

#### 2023, June

### SQL (Advanced)[](https://www.hackerrank.com/certificates/3e3a63e4cea3)

HackerRank

#### 2023, May

### JavaScript (Intermediate)[](https://www.hackerrank.com/certificates/fb5eb8a41cc2)

HackerRank

#### 2022, April

### Rest API (Intermediate)[](https://www.hackerrank.com/certificates/8dc7f5e68465)

HackerRank

Organisations
-------------

#### 2020 — Present

### Pim. Cabang Dewan Masjid Indonesia(DMI) Kec. Kotagede.

Sie. Idaroh

#### 2019 — Present

### Alas Mentaok Mataram Traditional Archery Brotherhood.

Chairman & Founding Team

#### 2003 — 2004

### HASKA (Himpunan Aktifitas Kajian Agama) - FMIPA UNY.

Sie. Ketakmiran

#### 2000 — 2003

### Remaja Masjid Muhtadien

Chairman

  

Achievements/ Honour
--------------------

#### 2003

  

### National MTQ contingent selection – UNY

2nd Winner

#### 2001

### Musabaqah Tilawatil Quran (MTQ)

2nd Winner – Bupati Bantul, D.I.Yogyakarta

#### 2001

### Musabaqah Tilawatil Quran (MTQ)

1st Winner – Tuti Bantul Timur, D.I.Yogyakarta

Hangga Aji Sayekti — [hangga.web.id](https://hangga.web.id)

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