I operate at the intersection of human behavioral science, quantitative data analytics, and modern digital craftsmanship. Holding a Bachelor of Psychology (S.Psi.) from Universitas Muhammadiyah Prof. Dr. Hamka (UHAMKA) and certified in Talent Management and Data Analysis, my work bridges organizational understanding with functional software architecture.
Whether architecting statutory-compliant human capital systems, developing cognitive scaffolding software for early childhood education, or designing intricate multi-layered psychological game narratives, my approach emphasizes:
- Human-Centric Logic: Designing systems and interfaces that match cognitive workflows and real-world behavior.
- Evidence-Based Scaffolding: Applying psychological principles (ZPD, Dual Coding Theory, Self-Determination Theory) to digital learning platforms.
- Defensive & Modular Engineering: Clean separation of concerns, zero superfluous dependencies, and production-ready deployments.
Why hire a product builder with a behavioral psychology & data background? (Click to expand)
"Most engineering challenges in enterprise software, EdTech, and consumer applications are fundamentally human challenges: cognitive friction, misaligned mental models, and unaddressed behavioral incentives."
- The Challenge: Enterprise systems (HRIS, payroll, internal portals) frequently suffer from low employee adoption and high error rates due to cognitive overload.
- My Strategic Value: Applying cognitive psychology doctrines (Miller's Law of chunking, progressive disclosure, and perceptual clarity) to design zero-training interfaces that employees, students, and educators navigate intuitively.
- The Challenge: Indonesian statutory labor regulations (PP 58/2023 TER PPh 21, PP 35/36 2021) and compensation hierarchies are complex and vulnerable to payroll discrepancies when managed manually.
- My Strategic Value: Combining empathy for employee fairness with rigorous mathematical logic—building transparent, automated payroll and tax compliance engines that foster organizational trust.
- The Challenge: Traditional software development lifecycles take months of requirement gathering, often resulting in delayed business value.
- My Strategic Value: Leveraging lightweight, modern full-stack architectures (modular vanilla stacks, Tailwind CSS, Supabase, Python Flet) to transform abstract HR and educational requirements into production-ready software in days rather than quarters.
| Repository | Domain & Architecture | Core Highlights |
|---|---|---|
| PayRoll | Human Resources Information System & Statutory Compliance | Fully compliant with Indonesian labor regulations (PP 58/2023 TER PPh 21, PP 35/36 2021). Features a 3-tier organizational hierarchy, overtime calculation algorithms, and multi-tenant department routing. |
| sovereign-wealth | Personal Wealth Management PWA | Mobile-first editorial wealth tracking application crafted with Google Stitch. Features multi-currency conversion, visual cashflow dynamics, portfolio analytics, and privacy toggles. |
| we-saves | Dual-Ledger Collaborative FinTech Platform | Shared financial management system designed for partners and couples. Features zero-backend privacy-first localStorage persistence, PIN authorization, and multi-wallet reconciliation. |
| Repository | Domain & Architecture | Core Highlights |
|---|---|---|
| EnglishSteps-Michelle | Adaptive Language Learning & Cloud Verification | Comprehensive CEFR A0–A1 platform featuring a 1,000-word lexical corpus, speech synthesis, Supabase PostgreSQL cloud persistence, and a public cryptographic certificate verification portal. Live Deployment |
| web-aplikasi-belajar-omahles | Early Childhood & Primary EdTech Portal | Multi-tier educational software for Kindergarten and Grades 1–6. Built on Vygotskian ZPD principles with interactive math, literacy modules, and gamified achievement feedback. Live Deployment |
| cept | Cambridge CEFR Assessment Engine | Diagnostic English evaluation platform benchmarking learners toward Cambridge B2–C1 standards. Integrates native Web Speech British listening modules and diagnostic scoring matrices. |
| Repository | Domain & Architecture | Core Highlights |
|---|---|---|
| roughtale8 | Original Psychological Horror Game Concept | An original 5-character branching narrative set in the 8th and final cycle of world annihilation. Deeply explores cyclical trauma, consequence matrices, psychological horror, and existential acceptance. |
| pymobile-calc | Cross-Platform Mobile Application (Python / Flet) | Scientific calculator and unit conversion engine built on Python with Google's Flutter engine. Implements strict MVC separation, notch-safe mobile insets, and zero-latency reactive state updates. |
- Talent Acquisition & Recruitment: Competency-based interviewing, candidate persona mapping, behavioral assessments.
- People & Culture / HR Generalist: Compensation & benefits structuring, Indonesian statutory compliance (BPJS, PPh 21 TER, PP 35/2021), organizational hierarchy modeling.
- Learning & Cognitive Development: Instructional design, educational scaffolding, cognitive mentoring, and developmental psychology.
- Exploratory Data Analysis (EDA): Statistical distributions, attrition tracking, performance telemetry, survey evaluation.
- Tooling & Environments: Python (Pandas, NumPy), SQL, Google Sheets API / AppSheet, Microsoft Excel Advanced Modeling.
- Web Applications: Semantic HTML5, CSS3 Custom Tokens, Modular Vanilla JavaScript (ES2022), Tailwind CSS.
- Mobile & Cross-Platform: Python Flet (Flutter rendering engine), Android APK packaging.
- Cloud & BaaS: Supabase (PostgreSQL 15, Row-Level Security, Auth), Vercel Global Edge Deployment.
- Education: S1 Psikologi, Universitas Muhammadiyah Prof. Dr. Hamka (UHAMKA) Jakarta (2018–2024).
- Practical Experience:
- Shadow Teacher / Student Mentoring: SMAIT Buahati Islamic School (July 2025 – Present) — Behavioral guidance, cognitive adaptation, and personalized pedagogical support.
- Business Analyst Intern: PT Mahabudi (Jan 2024 – Dec 2024) — Process mapping, data verification, and operational workflow analysis.
- Certifications: Talent Management Specialist, Data Analysis Fundamentals.
- Execution Philosophy: Clarity over complexity, execution over endless planning, and human value over superficial decoration.
- LinkedIn: linkedin.com/in/faarimuhammad
- GitHub: github.com/faarimuhammad2502
- Location: Jakarta, Indonesia