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Oracle APEX & Frontend Developer Open to opportunities

Manuel Nicholas

Building enterprise-grade web applications with Oracle APEX, PL/SQL, and modern frontend stacks. Currently leading application development at KCSI, consulting for Nojorono Group.

East Jakarta, Indonesia  ·  Fluent in English (C2)

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Oracle APEX PL/SQL React JS Node JS Oracle EBS REST API Three.js AWS Figma GitLab UI/UX Design Machine Learning Oracle APEX PL/SQL React JS Node JS Oracle EBS REST API Three.js AWS Figma GitLab UI/UX Design Machine Learning
About Me

Building systems
that matter

A graduate of Information Systems at Universitas Brawijaya, I have grown into an Oracle APEX Developer & Frontend Developer focused on building critical enterprise solutions for finance, general ledger, and audit industries.

I manage the full development lifecycle — from user requirement gathering, system design, and development, through to testing, deployment, and post-go-live support — with a consistent track record of zero critical downtime and high user adoption.

What I bring to every project:
User-centered design principles · Responsive layouts · Intuitive navigation · Fast-loading interfaces · Enterprise-grade security (RBAC) · Automated workflows

Outside of my primary role, I am a freelance Web Developer & Graphic Designer since 2018, and an active explorer of emerging technologies — Three.js, Machine Learning, and AI tools.

LinkedIn ↗ GitHub ↗
2.5+
Years enterprise
development
5+
Years of total
development experience
7+
Certifications
earned
C2
English
proficiency (EF SET)
Tech Stack

Skills &
Technologies

Core / Oracle
Oracle APEX PL/SQL Oracle DB E-Business Suite TOAD SQL RBAC Auth SMTP Config DB Links
Frontend
React JS JavaScript HTML5 CSS3 Three.js REST API Figma UI/UX Design Responsive Design
Backend & Infra
Node JS AWS GitLab Machine Learning API Integration Job Schedulers Excel Macros AI Tools
Automation & Infra
DBMS_SCHEDULER DB Links SMTP Config PL/SQL Triggers RBAC Auth Oracle ORDS Error Handling Audit Logging
Version Control & Deployment
Git GitHub GitLab Netlify AWS Branching Strategy CI/CD Env Variables
Softwares & Tools
Oracle APEX Oracle EBS TOAD VS Code Figma AI Tools
Abilities
UI/UX Design User Testing Web Usability Wireframing Prototyping Business Analytics Problem Solving Competitor Analysis User Requirements Analysis
Transferable Knowledge
PostgreSQL concepts REST API patterns Auth schemes Realtime patterns Full-stack lifecycle Agile delivery
Languages
Indonesian — Native English — C2 Proficient
Portfolio

Selected
Work

All Projects ↗
Featured
Project 01
Whistleblowing System (WBS)

Enterprise internal audit platform for PT Nojorono Tobacco International. A secure, confidential violation reporting channel enhancing corporate governance and internal control.

  • Designed the full user flow to ensure reporters can submit violations easily while maintaining anonymity
  • Intuitive navigation with clear submission steps, form validation, and status tracking
  • Full-cycle development: requirements → design → development → testing → deployment → post-go-live support
  • Zero critical downtime post-launch, high user adoption across departments
Oracle APEXPL/SQLHTML/CSS/JSSQLUI/UX Design
Project 02
Financial Accounting System (GL)

General Ledger platform for Strategic Finance. Accountants can quickly access journal entries, trial balances, and financial reports with fast-loading large datasets.

  • Responsive layouts optimized for large financial datasets with clear visual hierarchy
  • Applied UI/UX best practices: fast page loads, intuitive data filtering, export-ready reports
  • Integrated with Oracle E-Business Suite for seamless GL management
Oracle APEXOracle EBSPL/SQLAWS
Project 03
Budgeting & Forecasting System

Critical finance platform for Strategic Finance with a focus on clarity and ease of use for finance teams. Supports budget submission, approval workflows, and forecasting dashboards.

  • Intuitive navigation for multi-step approval workflows and budget submission
  • UI designed to reduce data entry errors and speed up the budgeting cycle
  • Automated job schedulers (DBMS_SCHEDULER) run consolidations during off-peak hours
Oracle APEXPL/SQLMachine LearningREST API
Project 04
Interactive 3D Data Dashboard

Pioneered interactive 3D data visualization inside Oracle APEX using Three.js — going beyond traditional flat dashboards for a modern, engaging UX.

  • 3D models to visualize complex data structures and enterprise metrics interactively
  • Excel Macro-ready report exports with automated on-premise ↔ cloud data sync
  • Configured SMTP alerts and job schedulers for automated data pipeline monitoring
Three.jsOracle APEXJavaScriptExcel Macros
Project 05
Risk Management Platform

Enterprise risk platform for Nojorono Group with an interactive heatmap to visually map risks across all departments by probability and impact.

  • Interactive risk heatmap filterable by department, risk category, and severity level
  • Stakeholders can instantly identify high-risk areas across the group
  • Full RBAC authentication, SMTP notifications, on-premise ↔ cloud server integration
Oracle APEXPL/SQLAWSRBACThree.js
Project 06
CV Generator Online - ATS Friendly

Online CV builder designed to help users create ATS-friendly resumes directly from the browser with a simple and practical workflow.

  • Focused on generating CVs with a structure that is more readable by Applicant Tracking Systems (ATS)
  • Browser-based experience for faster resume creation without complicated installation
  • Published as a live web tool that can be accessed anytime at cv-generator-online.com
Web AppCV BuilderATS FriendlyResponsive UI
Project 07
Freelance Web & Design Work

Custom websites and visual identities for individuals and businesses since 2018. Portfolio deployed on Netlify with GitHub-connected auto-deployments.

  • Responsive across all devices: mobile, tablet, laptop, desktop
  • Figma for wireframing & prototyping; Photoshop for visual design
  • Custom features: e-commerce, contact forms, brand identity, animations
  • Focused on fast loading, intuitive navigation, and high user engagement
React JSHTML/CSSNode.jsFigmaNetlify
Project 08
IT Asset Loan System

Web-based IT asset borrowing management system for companies. Handles the full loan lifecycle — from request and admin approval to physical handover, return, and overdue detection — for assets like laptops, monitors, and projectors.

  • Glassmorphism UI with dark-blue theme, off-canvas sidebar on mobile, and accessible keyboard navigation
  • QR code generation & in-browser camera scanning — scan any asset to instantly see its status, current borrower, and last 3 loan history entries
  • Role-based flow: employees request & return assets; admins approve, hand over, confirm returns, and manage users & categories
  • Print-ready loan receipts and bulk QR label printing per category
PHPMySQLHTML/CSS/JSQR CodeGlassmorphism UI
Project 09
KasFlow — Personal Finance App

Personal finance tracking app with OCR receipt scanning, interactive dashboard, spending analysis, and monthly budget management. All OCR processing runs entirely in the browser — no receipt data is sent to external servers.

  • Scan receipts via Tesseract.js OCR — auto-parses date, store name, total, and category with no external API calls
  • Dashboard with 6-month trend charts rendered server-side as SVG (zero JS chart library dependency)
  • Deep spending analytics: 12-month trends, top expense categories, top stores, and automated insights
  • Per-category monthly budget limits with real-time progress bars
PHPMySQLVanilla JSTesseract.js OCRSVG Charts
Credentials

Licenses &
Certifications

Oracle
Oracle APEX Cloud Developer Certified Professional
Issued May 2025 · No Expiration
Anthropic
Claude Code in Action
Issued Mar 2026 · No Expiration
EF Standard English Test
English Certificate — C2 Proficient (78/100)
Issued Sep 2023
Accenture
Digital Skills: User Experience (Score 91/100)
Issued Sep 2023 · No Expiration
freeCodeCamp
Front End Development
Issued Nov 2021 · No Expiration
Cognitive Class
Digital Analytics & Regression
Issued Sep 2023 · No Expiration
Journey

Work &
Education

"From building student programs to enterprise financial systems — every step has been intentional."

Get In Touch ↗
Jan 2025
Present
Application Development Supervisor
PT Karya Cipta Solusi Internasional (KCSI)

Leading development of high-impact finance projects consulting for Nojorono Group. Took on broader strategic responsibility for the company's financial infrastructure and decision-making systems.

  • Building financial consolidation systems, budgeting & forecasting platforms, budget monitoring, and risk management applications
  • Designed and implemented automated data sync between on-premise and cloud servers using Oracle DBMS_SCHEDULER and DB links — zero manual intervention
  • Configured SMTP notification systems triggered by database events (new submission, approval pending, error alerts)
  • Implemented event-driven triggers to auto-update summary tables, send notifications, and validate data on change
  • Built custom logging tables for full observability: timestamps, status, error messages, execution duration
Oracle APEXPL/SQLAWSMachine LearningREST APIDBMS_SCHEDULER
Jan 2024
Jan 2025
Application Development Supervisor
PT Nojorono Tobacco International

Delivered high-impact system solutions across Strategic Finance, General Ledger, and Internal Audit divisions. Zero critical downtime, high user adoption.

  • Built the Whistleblowing System (WBS) for Internal Audit — secure, anonymous violation reporting with intuitive user flow
  • Designed UI/UX for all financial systems applying user-centered design: responsive layouts, clear visual hierarchy, intuitive navigation to reduce errors and speed up workflows
  • Created an interactive risk heatmap using Three.js to visually map risks across departments — filterable by department, category, and severity
  • Pioneered interactive 3D data visualization with Three.js inside Oracle APEX enterprise applications
  • Built and integrated REST APIs using Oracle ORDS to expose database objects as REST endpoints
  • Designed full database objects: Tables, Views, Packages, Triggers, Functions, DB Links
  • Implemented RBAC authentication and custom auth schemes integrated with corporate directories
  • Used GitLab for version control — branching strategies, pull requests, merge conflict resolution
  • Conducted internal knowledge-sharing sessions on PL/SQL optimization, Oracle APEX best practices, and frontend customization (HTML, CSS, JS)
Oracle APEXPL/SQLThree.jsOracle EBSGitLabFigmaORDSRBAC
Feb 2022
Apr 2022
Intern Staff
Kementerian Komunikasi dan Informatika RI

Research on government programs for public dissemination. Collaborated with copywriters for social media content strategy. Designed Instagram content using Adobe Illustrator and Photoshop.

Adobe IllustratorAdobe PhotoshopContent Strategy
2018
Present
Web Developer & Graphic Designer
Freelance

Building custom websites and visual identities for clients since 2018. Deployed personal portfolio on Netlify with GitHub-connected auto-deployments.

  • Built websites using HTML, CSS, JavaScript, and Node.js — tailored to each client's brand and requirements
  • Implemented custom features: e-commerce capabilities, contact forms, animations, and dynamic content
  • Used Figma for wireframing and prototyping; Adobe Photoshop for visual design and brand assets
  • Ensured responsive design across all devices: mobile, tablet, laptop, and desktop
  • Focused on UX: intuitive navigation, fast loading times, and high user engagement
  • Used Git & GitHub for version control — branching, commits, pull requests, and remote collaboration
  • Connected Netlify to GitHub for automatic deployments on every push, managing environment variables and custom domains
HTML/CSS/JSReact JSNode.jsFigmaAdobe PhotoshopGit/GitHubNetlify
2016
2023
S1 Sistem Informasi
Universitas Brawijaya

Majored in Information Systems. Active in student organizations — Staff at Kementerian Inovasi Karya, Eksekutif Mahasiswa Universitas Brawijaya (2017–2018). Led committees and organized scientific writing competitions.

Information SystemsLeadershipOrganization
2013
2016
SMA Negeri 81 Jakarta
Mathematics and Natural Sciences

Head of Seksi 2: Wawasan Keilmuan, OSIS Board. Led science-focused programs, academic workshops, and promoted scientific exploration within the student community.

LeadershipScience TrackOSIS
Manuel Nicholas
● Open to Work
Contact

Let's build
something great

Open to job opportunities, collaboration projects, or just chatting about technology — Oracle APEX, web development, or anything in between. Reach out anytime!