hi, i'm theodore.👋🏼

Software Engineer in Test (SDET) with 1+ years of experience who loves breaking things, helping teams ship high quality software, and automating the boring stuff.

Currently: Building test automation at scale for modern web products.

selected work.

Quality, proven in practice.

Proven QA deliverables from fast-paced production environments. Strategic test design, artifacts, and engineering.

CASE STUDY

Quality Assurance Case Studies

End-to-end analysis covering context, risk assessment, test strategy, and measurable impact on release confidence.

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BUG REPORTS

Issue Report Samples

Production-grade bug reports with clear reproduction steps, severity mapping, and validation evidence.

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TEST DESIGN

Test Cases

Structured test packs with preconditions, execution steps, expected results, and priority levels.

COVERAGE

Test Scenarios

Scenario-driven coverage mapping for critical user journeys and edge conditions.

DOCS

User Manual Documentation

Operational documentation validated through real QA testing workflows.

Distributed Flash Sale Load Test

A high-concurrency to demonstrate and solve Race Conditions (Overselling). Proved that redundant stock logic fails under load without Mutex Locking on a FastAPI backend.

experience.

Where I've been making impact.

Software Quality Assurance @ Muatmuat

Aug 2025 - Feb 2026

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Contract

Software Quality Assurance @ Muatmuat

Dec 2024 - Aug 2025

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Freelance

Technology Development Program @ Telkomsel

Jun 2024 - Oct 2024

skills.

Technical stack.

Test Strategy & QA Lifecycle

Test Design Bug Lifecycle Exploratory Testing Risk Mitigation Jira / TestRail SDLC / STLC

Automation Tools

Playwright Cypress Appium (Mobile) REST API Testing Cucumber (BDD) Maestro

Performance & Load Engineering

k6 JMeter Locust Load Analysis

Infrastructure & CI/CD

GitHub Actions Docker Container SQL (DBeaver) Git Control Basic Unix/Shell

thoughts.

Articles.

I write about the trade-offs behind product quality in fast-moving teams: risk decisions, release confidence, agile discipline, and lessons learned from real startup incidents.

Product Quality 8 min

Designing Product Quality Before Code: A Practical Three Amigos + BDD Framework

A product-quality perspective on how Three Amigos and BDD create clearer behavior expectations before implementation begins.

April 7, 2026 Read

QA Culture 7 min

The Zero-Bug Myth in Fast-Moving Teams: Why Quality Is About Risk, Not Perfection

A reflection from startup QA reality: tight timelines, huge bug backlogs, and the pressure to ship. Quality improves when teams manage risk, not chase impossible perfection.

March 27, 2026 Read

Product Quality 7 min

The Cost of Over-Engineering Products: Building Unicorn Features for Nobody

When teams skip MVP and ignore user feedback, product development becomes expensive guesswork. A practical reflection from startup reality.

March 21, 2026 Read

Agile & Quality 6 min

Agile Methodologies for Quality Products: Lessons From a Team That Moved Too Fast

Fast delivery without agile discipline creates hidden quality debt. A practical reflection on how Scrum and Kanban protect product quality and team health.

March 14, 2026 Read