{"site":{"name":"jSite","url":"https://hizkiajuan.com","author":{"name":"Hizkia Juan Suryanto","nickname":"Juan"},"resume":{"fileName":"Hizkia Juan Suryanto.pdf","sections":{"summary":"SUMMARY","experience":"EXPERIENCE","projects":"PROJECTS","education":"EDUCATION"}}},"profile":{"type":"profile","metadata":{"title":"README","author":"Hizkia Juan Suryanto","updated":"2026-03-01"},"data":{"name":"Hizkia Juan Suryanto","nickname":"Juan","role":"Frontend Engineer","location":"Jakarta, Indonesia","bio":"Frontend Engineer with 10 years of experience leading, building, and delivering production-grade web applications. Specialized in scalable frontend architecture and high engineering standards, with a strong focus on integrating AI into modern development workflows.","greeting":"Hi, I'm"}},"projects":{"type":"projects","metadata":{"title":"Projects","author":"Hizkia Juan Suryanto","updated":"2026-03-01"},"data":[{"label":"Featured","items":[{"id":"jsite","title":"jSite","description":"Personal portfolio with a VS Code and Apple-inspired interface, showcasing projects, experience, and experiments in a unique developer-centric UI.","url":"https://hizkiajuan.com","isDocked":true,"imageSrc":"src/assets/logo/jsite.webp"},{"id":"devlog","title":"DevLog","description":"Developer journal for documenting experiments, technical insights, and engineering learnings, featuring a syntax-inspired interface and interactive commenting.","url":"https://devlog.hizkiajuan.com","isDocked":true,"imageSrc":"src/assets/logo/devlog.svg"},{"id":"worklog","title":"WorkLog","description":"Minimalist productivity workspace to track daily progress, manage tasks, and capture small wins and learning moments.","url":"https://worklog.hizkiajuan.com","isDocked":true,"imageSrc":"src/assets/logo/worklog.svg"}]},{"label":"Other Work","items":[{"id":"juaneny","title":"Wedding Invitation of Juan & Eny","description":"Modern digital wedding invitation with elegant layout, RSVP flow, and event information.","url":"https://juaneny.hizkiajuan.com/","isDocked":false},{"id":"mesrah","title":"Wedding Invitation of Holmes & Sarah","description":"Custom wedding invitation website featuring interactive sections and a clean celebratory design.","url":"https://mesrah.hizkiajuan.com/","isDocked":false},{"id":"groweo","title":"Grow EO","description":"Marketing website for Grow EO, designed to communicate services and event offerings with a clear, conversion-focused layout.","url":"https://groweo.hizkiajuan.com/","isDocked":false},{"id":"hizkiaalmerita","title":"Wedding Invitation of Hizkia & Almerita","description":"Personalized 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Arisan","description":"Web application for managing and visualizing community-based rotating savings (arisan).","url":"https://x.com/hizkiajuans/status/1757326158897861078?s=20","isDocked":false},{"id":"tokorame","title":"Tokorame","description":"E-commerce application focused on clean product presentation and browsing experience, inspired by Tokopedia.","url":"https://x.com/hizkiajuans/status/1755460421136560470?s=20","isDocked":false},{"id":"orchid","title":"Orchid Packaging","description":"Web system for a packaging business enabling sales and purchase order management with product, service, and stock control.","url":"https://x.com/hizkiajuans/status/1746552785896894546?s=20","isDocked":false},{"id":"giyanto","title":"Giyanto Socks","description":"Sales and purchase order management system for a socks business with streamlined control over products, suppliers, and customers.","url":"https://x.com/hizkiajuans/status/1741396262484898098?s=20","isDocked":false},{"id":"carwash","title":"Car Wash","description":"Service website for a car wash business with pricing, booking information, and location details.","url":"https://x.com/hizkiajuans/status/1731218382060708221?s=20","isDocked":false},{"id":"wonolopo","title":"Wonolopo Village","description":"Community or village profile website highlighting local information, activities, and announcements.","url":"https://x.com/hizkiajuans/status/1751628503576199542?s=20","isDocked":false},{"id":"cipta-sakti","title":"UD Cipta Cahaya Sakti","description":"Sales and purchase order management system for UD Cipta Cahaya Sakti with tools for managing products, suppliers, and customers.","url":"https://x.com/hizkiajuans/status/1738119321019380135?s=20","isDocked":false}]}]},"experience":{"type":"experience","metadata":{"title":"Experience","author":"Hizkia Juan Suryanto","updated":"2026-03-01","description":"Led, built and delivered production-grade applications across startups, agencies, and enterprise teams."},"data":[{"id":"immersive-technologies","company":"Immersive Technologies","role":"Web Developer","location":"Perth, Australia","workType":"remote","startDate":"2023-09","endDate":null,"description":"Led frontend architecture and delivery for enterprise SaaS training platforms, building simulation, analytics, and learning applications with a focus on scalability and usability.","highlights":["Developed the UI for a simulation control application, improving how trainers operate and interact with heavy-equipment simulators.","Implemented centralized authentication for the digital learning CMS.","Led digital learning applications in collaboration with Komatsu, architecting scalable frontend systems for enterprise SaaS training platforms and delivering a major UX overhaul for the AHS Training platform.","Built and maintained an analytics application, improving UI consistency, product usability, and frontend performance.","Skills: React, TypeScript, JavaScript, TailwindCSS, Jest, Mocha, Ember, Material UI, HTML, CSS, SASS/SCSS, MobX, PostgreSQL, Git, Docker, AWS, CouchDB."]},{"id":"online-pajak","company":"OnlinePajak","role":"Senior Software Developer","location":"Jakarta, Indonesia","workType":"hybrid","startDate":"2019-08","endDate":"2023-09","description":"Led end-to-end development of B2B fintech product features and platform systems, driving user growth, improving engineering quality, and enabling cross-team platform initiatives.","highlights":["Led end-to-end development of a withholding tax application, increasing new active company sign-ups by 50% per month and driving product adoption among business customers.","Maintained a strong delivery record across multiple releases, consistently exceeding engineering quality gates with a pass rate above 75%.","Improved code quality by introducing clearer test cases and maintainable coding patterns, reducing production bugs and improving long-term maintainability.","Led development of a unified \"one-for-all\" invoicing platform with cross-country teams, improving engineering collaboration and accelerating feature delivery.","Skills: Vue, Vuex, JavaScript, TypeScript, HTML, CSS, SASS/SCSS, TailwindCSS, AG Grid, Jest, NestJS, PostgreSQL, Git, Docker."]},{"id":"wisana","company":"Wisanamitra Argakarya","role":"Software Engineer","location":"Jakarta, Indonesia","workType":"onsite","startDate":"2018-02","endDate":"2019-08","description":"Built enterprise full-stack platforms and internal systems with a focus on performance, reliability, and maintainable system design.","highlights":["Built an enterprise resource planning (ERP) system integrating Django REST Framework on the backend with React on the frontend, supporting core business operations.","Designed and optimized database structures to improve query performance and overall system responsiveness.","Skills: React, Redux, JavaScript, Jest, Puppeteer, Cypress, HTML, CSS, Bootstrap, PostgreSQL, Python, Django, Git, Docker."]},{"id":"technubi","company":"Technubi IT Solution","role":"Full-Stack Web Developer","location":"Yogyakarta, Indonesia","workType":"onsite","startDate":"2016-07","endDate":"2018-01","description":"Independently delivered full-stack web applications for startups and SMEs, owning system design, development, and deployment end-to-end.","highlights":["Independently delivered production web applications, typically shipping projects within roughly one month.","Designed database schemas and implemented both frontend and backend systems.","Built applications using Laravel and PHP with third-party integrations while following Git-based workflows and Agile practices.","Skills: HTML, CSS, JavaScript, jQuery, Bootstrap, PHP, Laravel, CodeIgniter, MySQL, Git."]},{"id":"avios","company":"Anugerah Inova Indonesia (AVIOS)","role":"Web Developer","location":"Yogyakarta, Indonesia","workType":"onsite","startDate":"2015-08","endDate":"2015-11","description":"Designed, developed, and launched the company website from scratch, handling architecture, implementation, and deployment independently.","highlights":[]}]},"testimonials":{"type":"testimonials","metadata":{"title":"Testimonials","author":"Hizkia Juan Suryanto","updated":"2026-03-01","description":"Kind words from people I've had the opportunity to work with. Titles and affiliations may have changed over time."},"data":[{"id":"kristian-gunawan","name":"Kristian Gunawan","role":"VP Engineering","company":"OnlinePajak","companyUrl":"https://www.online-pajak.com/","quote":"I've worked with Juan for around 4 years. He always put an effort to deliver a good work and also very active in ensuring the overall quality of the product through the peer review process. I would really recommend him as he will certainly brings a positive impact to any company with his experience, good sense of responsibility and strong commitment."},{"id":"francis-nailon","name":"Francis Nailon","role":"Senior Software Test Engineer","company":"VISEO APAC","companyUrl":"https://asia.viseo.com/","quote":"As a software QA, Juan is one of many software developers that I worked with. He is more diligent and provide insightful information for everyone to understand (BA, QA, & developers). We had our opposite ideas and thinking but we find ways to meet in the middle. He shared his development technique and knowledge effortless and genuinely. He extend his time willingly to make sure that an urgent matter will be address properly. Thank you Juan for being a great teammate."},{"id":"daniel-roy","name":"Daniel Roy","role":"CEO","company":"Technubi","quote":"In terms of development, the quality of performance is very good and fast. From the personal side, he is humble and relax."},{"id":"darwin-sanjaya","name":"Darwin Sanjaya","role":"Co-Founder","company":"Hike n Run","companyUrl":"https://hikenrun.com/","quote":"Juan shows great attention to detail and he has great sense of UI front end design. He is well organized person. And he can show contribution to the team."},{"id":"michael-sulistijo","name":"Michael Sulistijo","role":"Principal Engineer","company":"OnlinePajak","companyUrl":"https://www.online-pajak.com/","quote":"I worked with Juan intensely for about one year. He helped me and the team, onboard with the project. He is always delivering whatever challenge given to him, and meeting the individual KPI. He has shown a passion in writing and I believe he has talent for this too. I highly recommend him, to any potential employer."},{"id":"indra-gunawan","name":"Indra Gunawan","role":"Software Engineer","company":"Kargo Technologies","companyUrl":"https://kargo.tech/","quote":"Mempunyai banyak pengetahuan tentang UI dan UX. Mampu menyelesaikan secara kreatif dengan solusi yang out of the box."},{"id":"ananda-umamil","name":"Ananda Umamil","role":"Software Engineer","company":"OnlinePajak","companyUrl":"https://www.online-pajak.com/","quote":"I wholeheartedly recommend Juan. I had the pleasure of working closely with Juan as a teammate for 2 years. Juan consistently demonstrated exceptional technical skills and a deep understanding of software development principles and the business domain. His ability to tackle complex problems with innovative solutions was truly impressive. He was a key contributor to our team, consistently delivering high-quality code and meeting project deadlines. Beyond his technical and domain expertise, Juan is a collaborative and team-oriented individual. He was always willing to share his knowledge and mentor junior team members. His positive attitude and strong work ethic created a positive and productive work environment."},{"id":"firmansyah-rizqy","name":"Firmansyah Rizqy","role":"Software Engineer","company":"Wisanamitra Argakarya","companyUrl":"https://www.wisana.com/","quote":"Kemampuan user interface yang oke. User interface problem solver. Solusi diluar rata-rata, out of the box."},{"id":"kharis-khasburrahman","name":"Kharis Khasburrahman","role":"Software Engineer","company":"Wisanamitra Argakarya","companyUrl":"https://www.wisana.com/","quote":"Mempunyai banyak pengetahuan mengenai library pihak ketiga untuk user interface, sehingga kebutuhan tersebut dapat diselesaikan dengan lebih sedikit waktu."}]},"education":{"type":"education","metadata":{"title":"Education","author":"Hizkia Juan Suryanto","updated":"2026-03-01"},"data":[{"id":"bachelor-informatics","degree":"Bachelor in Informatics","institution":"Duta Wacana Christian University","startYear":2012,"endYear":2016,"highlights":[{"text":"Graduated with Honor (GPA 3.86 of 4.00) in Informatics Engineering"},{"text":"Undergraduate thesis titled \"Indoor Positioning System using K-Means and KNN Algorithms\""},{"text":"Provided many assistance on programming & database course (Web, Java, MySQL)"},{"text":"Provided training on \"SAP01 - SAP Fundamentals\""},{"text":"Various organization involvement including student government, programming club, and event committees"}]}]},"publications":{"type":"publications","metadata":{"title":"Publications","author":"Hizkia Juan Suryanto","updated":"2026-03-01"},"data":[{"id":"indoor-positioning-system","title":"Indoor Positioning System using K-Means and KNN Algorithms","url":"https://journal.maranatha.edu/index.php/jutisi/article/view/641","excerpt":"Indoor Positioning System (IPS) can determine someone's position inside a building. The common method used is implemented by WiFi signal strength analising. This paper discusses about how to do IPS using K-Means and K-Nearest Neighbor (KNN) method, that also analyze the accuracy. K-Means is used to cluster dataset. Each data in certain cluster then classified using KNN method. The dataset consists of 11658 Received Signal Strength (RSS) from 177 Access Point (AP) in UKDW. Accuracy of system analized using 10-fold Cross Validation method which is applied in a range of k=2 to k=11 for clusterisation process, then k=1 to k=5 for classification process. Based on the experiment results, system can determine someone's position with 88.49% accuracy which k optimum is 10 for clusterisation process, and k=1 for classification process.","publisher":"Maranatha University Press","date":"10 Dec 2016"}]},"certifications":{"type":"certifications","metadata":{"title":"Certifications","author":"Hizkia Juan Suryanto","updated":"2026-03-01"},"data":[{"id":"efset","name":"EF SET English Certificate 71/100 (C2 Proficient)","url":"https://cert.efset.org/B4jytg"},{"id":"css-sass","name":"Advanced CSS and Sass: Flexbox, Grid, Animations","url":"https://www.udemy.com/certificate/UC-8WBXDHAU/"},{"id":"react-redux","name":"Modern React with Redux","url":"https://www.udemy.com/certificate/UC-89M5GO1S/"},{"id":"rwd","name":"Responsive Web Design","url":"https://www.freecodecamp.org/certification/hizkiajuan/responsive-web-design"},{"id":"cs50-puzzle","name":"CS50: CS50x Puzzle Day 2019","url":"https://certificates.cs50.io/1d2041a1-5646-46d9-8d6c-62f841573c94.pdf?size=letter"},{"id":"cs50-intro","name":"CS50: CS50's Introduction to Computer Science","url":"https://courses.edx.org/certificates/7d7de6310b13419c9007335c2fc8805d"},{"id":"sap01","name":"SAP01 - SAP Overview"},{"id":"oracle-plsql","name":"Oracle Database 11g: Program with PL/SQL Release 2"}]},"contact":{"type":"contact","metadata":{"title":"Contact","author":"Hizkia Juan Suryanto","updated":"2026-03-01"},"data":[{"id":"email","label":"Email","href":"mailto:hizkiajun@gmail.com","displayText":"hizkiajun@gmail.com"},{"id":"linkedin","label":"LinkedIn","href":"https://linkedin.com/in/hizkiajuan","displayText":"hizkiajuan"},{"id":"x","label":"X","href":"https://x.com/hizkiajuans","displayText":"@hizkiajuans"},{"id":"github","label":"GitHub","href":"https://github.com/hizkiajuan","displayText":"hizkiajuan"}]},"notFound":{"frontmatter":{"title":"404","status":"error"},"heading":"404 Not Found","description":"The file you're looking for doesn't exist in this workspace.","errorHeading":"Error","suggestionsHeading":"Suggestions","suggestions":["Check the URL for typos",{"text":"Close this tab to return to","link":{"href":"/","label":"README.md"}},"Use the sidebar to navigate"]},"musicPlaylist":[{"id":"golden-hour","title":"Golden Hour","artist":"Purrple Cat","album":"Lofi Chill","albumArt":"src/assets/logo/lofi.webp","src":"src/assets/audios/golden-hour-by-purrple-cat.mp3"}],"bibleVerses":[{"text":"Trust in the Lord with all your heart.","reference":"Proverbs 3:5","version":"NIV"},{"text":"I can do all things through Christ who strengthens me.","reference":"Philippians 4:13","version":"NKJV"},{"text":"The Lord is my shepherd; I shall not want.","reference":"Psalm 23:1","version":"ESV"},{"text":"Be strong and courageous. Do not be afraid.","reference":"Joshua 1:9","version":"NIV"},{"text":"For God so loved the world that He gave His only Son.","reference":"John 3:16","version":"ESV"},{"text":"The joy of the Lord is your strength.","reference":"Nehemiah 8:10","version":"NIV"},{"text":"Cast all your anxiety on Him because He cares for you.","reference":"1 Peter 5:7","version":"NIV"},{"text":"Be still, and know that I am God.","reference":"Psalm 46:10","version":"NIV"},{"text":"God is our refuge and strength.","reference":"Psalm 46:1","version":"ESV"},{"text":"The Lord is my light and my salvation.","reference":"Psalm 27:1","version":"NIV"},{"text":"His mercies are new every morning.","reference":"Lamentations 3:23","version":"ESV"},{"text":"I have plans to prosper you, not to harm you.","reference":"Jeremiah 29:11","version":"NIV"},{"text":"Faith is the substance of things hoped for.","reference":"Hebrews 11:1","version":"NKJV"},{"text":"Love is patient, love is kind.","reference":"1 Corinthians 13:4","version":"NIV"},{"text":"In all things God works for the good.","reference":"Romans 8:28","version":"NIV"},{"text":"Do not worry about tomorrow.","reference":"Matthew 6:34","version":"NIV"},{"text":"The peace of God surpasses all understanding.","reference":"Philippians 4:7","version":"ESV"},{"text":"Walk by faith, not by sight.","reference":"2 Corinthians 5:7","version":"ESV"},{"text":"Greater is He who is in you.","reference":"1 John 4:4","version":"NKJV"},{"text":"Delight yourself in the Lord.","reference":"Psalm 37:4","version":"ESV"},{"text":"The Lord will fight for you; be still.","reference":"Exodus 14:14","version":"NIV"},{"text":"Come to me, all who are weary.","reference":"Matthew 11:28","version":"ESV"},{"text":"You are fearfully and wonderfully made.","reference":"Psalm 139:14","version":"NIV"},{"text":"Seek first the kingdom of God.","reference":"Matthew 6:33","version":"ESV"},{"text":"My grace is sufficient for you.","reference":"2 Corinthians 12:9","version":"NIV"},{"text":"The Lord is near to the brokenhearted.","reference":"Psalm 34:18","version":"ESV"},{"text":"With God all things are possible.","reference":"Matthew 19:26","version":"NIV"},{"text":"He who began a good work will complete it.","reference":"Philippians 1:6","version":"NIV"},{"text":"The name of the Lord is a strong tower.","reference":"Proverbs 18:10","version":"ESV"},{"text":"Wait on the Lord; be of good courage.","reference":"Psalm 27:14","version":"NKJV"}]}