Jeslyn Vicky Hanjaya

Software Developer
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Portrait of Jeslyn Vicky Hanjaya
Open to Software Developer roles

About

I’m an Informatics graduate from Universitas Pembangunan Nasional “Veteran” Yogyakarta (GPA 3.75/4.00) seeking a Software Developer role. I configured Keycloak SSO with an external MySQL database at a government agency, built and maintained two live business websites for 12+ months with Google Ads campaigns and conversion tracking, and developed a MobileNetV2 + Grad-CAM skin-type classifier deployed as a Streamlit web app. I focus on solution quality and user needs, work well independently and in teams, and adapt quickly to new technologies.

99.11% accuracyMobileNetV2 skin-type classifier: 223/225 on the dataset’s test split
13.6K clicks · 5.9% CTRGoogle Ads on two live websites, 1,867 WhatsApp conversions
100% passKeycloak SSO tested on 15 accounts and 6 dummy applications

Technical skills

Technologies from my CV.

Projects

Five projects, from production work to coursework and my thesis. Each card states my role.

Experience

Web Developer & Google Ads Specialist

Depo Mandiri Jaya · Remote · July 2025 – September 2026
  • Designed, built and deployed 2 responsive marketing websites (HTML, Tailwind CSS, JavaScript) with product pages, on-page SEO and WhatsApp contact links; maintained both for 12+ months.
  • Implemented Google Ads conversion tracking (gtag.js) on WhatsApp click-throughs, recording 1,867 conversions at ~Rp17.7K each.
  • Managed 2 Google Ads campaigns (~Rp2.3M/month): 13.6K clicks, 231K impressions, 5.9% CTR.
  • Lighthouse (desktop, Performance/Accessibility/Best Practices/SEO): panellantaijogjakarta.com 91/100/100/100; panellantaiciticonn.com 90/100/100/91.

Full Stack Web Developer (Intern)

Sleman Regency Department of Communication and Informatics (Kominfo Sleman) · Yogyakarta · July – August 2025
  • Configured Keycloak 26 (SSO) with an external MySQL database replacing the default H2 store; verified the auto-generated schema (30+ tables).
  • Added 3 custom user attributes (NIK 16-digit, NIP 18-digit, ISO birth date) via Keycloak User Profile validators; customized the registration theme (FreeMarker, HTML, CSS) and added reCAPTCHA.
  • Black-box tested registration, login and profile update on 15 accounts (100% pass); verified single login across 6 dummy applications.
  • Documented requirements and design (use case, activity, class diagram, ERD).

Education

Universitas Pembangunan Nasional “Veteran” Yogyakarta

Bachelor’s Degree, Informatics · August 2022 – July 2026
GPA 3.75 / 4.00

Thesis: facial skin type classification with explainable AI (see Projects).

Relevant courses: Algorithms and Programming, Data Structures, Object-Oriented Programming, Database Systems, Web Programming, Software Engineering, System Analysis and Object-Oriented Design, Mobile Application Development.

Certifications

Junior Mobile Programmer (VSGA), Digital Talent Scholarship · August 2025
Google Ads Search Certification, Google Skillshop · October 2026

Languages

Bahasa Indonesia (native) · English (professional working proficiency)

Leadership & design

Marketing Team Leader, Novo Club in Action Group 49, Novo Club by Paragon Corp (Jan – Aug 2024): led the marketing team in managing event publicity and documenting a cultural workshop.

Core Design Staff, Veteran Integrated Parade 6.0 (Sep – Dec 2024): created Instagram content and visual assets for a campus festival.

Design Staff, PKKBN UPNVY (Jul – Sep 2024): made Co-Card designs and hand-drawn illustrations for campus orientation.

messages — jeslyn

Have a project in mind? Let’s build something meaningful.

I’m open to Software Developer opportunities. Email is the fastest way to reach me.

Email me LinkedIn

+62 813 9068 4088 · Yogyakarta, Indonesia

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