The most valuable bugs are the ones your customers never see.
Over the past 12+ years, I have logged more than 27,000 hours worth of QA work across 70+ projects. Several client relationships span multiple years and thousands of hours, reflecting the level of trust, consistency, and ownership I bring to every project.
I am a Senior Manual QA specializing in GitHub-based development workflows, pull request validation, exploratory testing, and AI-assisted development environments. My role is not simply to find bugs. My goal is to help teams ship with confidence by identifying issues before they reach production, where they become significantly more expensive and disruptive to fix.
I specialize in Manual QA for iOS, Android, and Web applications, helping product teams reduce release risk through exploratory testing, regression testing, feature validation, and detailed bug investigation. By uncovering issues early in the development cycle, I help teams avoid costly production incidents, customer-facing defects, and unnecessary rework.
Throughout my career, I have worked closely with founders, product managers, designers, developers, and distributed teams to improve product quality and support reliable releases. I enjoy understanding how a product works, exploring user behavior, identifying edge cases, and providing actionable feedback that helps teams make informed decisions before shipping.
In addition to traditional QA activities, I regularly work within GitHub-based development workflows, validating pull requests, reproducing reported issues, verifying fixes, reviewing implementation outcomes, and providing structured feedback before changes are merged or released.
As development teams increasingly adopt AI-assisted coding tools, QA plays an even more important role as the final validation layer. Recent projects have expanded my responsibilities beyond traditional testing into PR validation, agent-assisted development workflows, QA session orchestration, and structured feedback loops between developers, coding agents, and product teams.
Areas of expertise:
• Manual Testing (iOS, Android, Web)
• Exploratory Testing
• Regression Testing
• Feature Validation
• Release Validation
• Pull Request Validation
• GitHub-Based Development Workflows
• Cross-Device Testing
• Bug Investigation & Reproduction
• QA Documentation & Reporting
• AI-Assisted Development Validation
• Agile Product Development
Tools and Platforms:
• GitHub
• Jira / Atlassian
• Confluence
• Azure DevOps
• Charles Proxy
• Trello
• TestRail
• Mixpanel
• Loom
• Lightshot
Device Lab Available for Real-Device Testing:
iOS Devices
• iPhone 6 Plus (iOS 12)
• iPhone 7 Plus (iOS 13)
• iPhone 12 Pro Max
• iPhone 13 Mini
• iPhone 14 Pro Max
• iPhone 15 Pro
• iPhone 16e
• iPod Touch 6th Generation
Android Devices
• Samsung S7
• Samsung S9
• Samsung Note 9
• Samsung A51
• Samsung A56
Desktop
• MacBook Pro 15"
• iMac M1
I am particularly interested in long-term collaborations where I can develop a deep understanding of the product, contribute meaningful QA insights, reduce release risk, and become a trusted quality partner for the team rather than simply an external tester.
Microsoft Visual Studio
Manual Testing
End-to-End Testing
Regression Testing
Mobile App Testing
Functional Testing
Test Case Design
Jira
TestRail
Test Plan
Test Design
Test Management
GitHub
Azure DevOps
Black Box Testing
Exploratory Testing
QA Testing
Code Review
GitHub Copilot
Freddy S.
Surabaya, Indonesia
$15/hr
5.0
21 jobs
Hi, I’m Freddy Ho - a Data & Automation Engineer with 10+ years of experience building business systems using C# and VB.NET.
I specialize in automating workflows and streamlining daily operations while transforming raw data into actionable insights for better decision-making.
What I can help you with:
• Automation systems for business processes
• Data processing and transformation
• Machine learning and predictive analytics
• Sales analytics, forecasting, and reporting
• API integrations and data pipelines
• Dashboards and database solutions
Strengths:
• C#, VB.NET and Python
• Automation and bulk data processing
• ML.NET and applied machine learning
• Statistical and analytical thinking
• Reliable and maintainable systems
Let’s build something that makes your work faster and easier.
C#
VB.NET
Excel Macros
System Automation
Spreadsheet Automation
Email Automation
Visual Basic for Applications
Microsoft Access
Microsoft Access Programming
Email Campaign
.NET Core
.NET Framework
Machine Learning
Data Analysis
Stock Price Prediction
Djony A.
Tangerang, Indonesia
$25/hr
5.0
8 jobs
I am a professional Microsoft Access, Excel and VBA developer with over 20 years of experience. I am proficient in using Microsoft Access, including creating and manipulating tables, queries, forms, reports, macros, modules, and exporting/importing data. I am also proficient in using Microsoft Excel with the VBA programming language. Besides programming language, I am also proficient in database development, maintenance, and optimization for Microsoft Access database, and Ms. SQL Server. All these skills support me in providing what you need, and I am ready to advise you on the best solution for your needs.
There are many projects that I have worked on related to Administration, Manufacturing, and Finance.
I also have an IT education background, I even received awards as the best student several times during university.
Try it once and you will get my best work! Customer satisfaction is always the main thing in carrying out my projects.
Microsoft Access
Microsoft Access Programming
Visual Basic for Applications
Information Technology
Database Design
Microsoft Excel
Microsoft Word
Visual FoxPro
FoxPro Programming
FoxPro Administration
Microsoft SQL Server
Inno Setup
Pascal
Han B.
Surabaya, Indonesia
$5/hr
4.7
1 jobs
Hi, I'm a data analyst with 2+ years experiences. I have professional experiences in manufacturing, mining and logistic service company as business process excellence. I'm open with any opportunity regarding data analytics, data science, and data engineering.
• Advanced in Microsoft Excel (VBA Macro), Power Query, Power Automate, PowerApps, Power BI
• Knows SQL, Selenium, R, and Python
• I work casually, but I never take my work lightly
My projects are real case project, since its real company or clients project i cannot show the full doc
ETL Pipeline
Data Analysis
Machine Learning
Artificial Intelligence
Machine Learning Model
App Development
Macro Programming
Python
Looker Studio
Microsoft Power BI
Microsoft Power Automate
Microsoft PowerApps
Robotic Process Automation
Supply Chain Management
Grafana
Fathurrahman M.
Karawang, Indonesia
$35/hr
5.0
49 jobs
🏆 Top-Rated PLUS (Top 3% Talent) | 🎖 100% Job Success | ⭐ 5-Star Client Reviews
🚀 Are you looking to unlock powerful insights from your data, automate tedious tasks, or build seamless business applications? Look no further! 🚀
With 9+ years of experience and 9,000+ hours on Upwork, I specialize in workflow automation, process optimization, and custom application development using Power Automate, n8n, Power Apps, Access, and VBA. Whether you need to eliminate repetitive tasks or integrate systems seamlessly, I can build efficient automation solutions tailored to your business.
What My Clients Say:
“Your work has far exceeded all expectations. You are a great freelancer and I will be using you for every opportunity. Great work.” — Satisfied Client
🔹 What I Can Do for You:
✅ Database Design & Management – Work with Microsoft Access, VBA, SQL Server, and MySQL to structure and optimize data storage.
✅ Business Intelligence & Data Visualization – Build dynamic dashboards in Power BI, leveraging Power Query, Dataverse, and SQL for real-time insights.
✅ Excel & VBA Automation – Develop advanced Excel models, automate reports, and create custom VBA solutions to eliminate manual work.
✅ Process Automation & Integration – Use Power Apps, Power Automate, and Dataverse to create seamless workflows and business applications.
✅ Custom API Development – Utilize Python (Django/Flask) and Postman to integrate systems and streamline operations.
🔹 Why Work with Me?
✔ Proven Track Record – 100% Job Success Score & Top-Rated since 2017.
✔ Problem-Solving Mindset – I tackle complex data challenges with efficient solutions.
✔ User-Friendly Approach – I design intuitive reports, applications, and automation tailored to business needs.
📅 FREE 20-Minute Consultation 📅
Let’s turn your data into actionable insights and automate your processes for maximum efficiency! Click "Invite" or "Message" to get started today! 🚀
Microsoft Access
Microsoft Access Programming
Visual Basic for Applications
Microsoft Excel
Excel Macros
Microsoft Power BI
Microsoft PowerApps
Microsoft Power Automate
Zapier
Microsoft SQL Server
API Integration
Python
Adrian I.
Surabaya, Indonesia
$25/hr
5.0
48 jobs
A passionate data analyst, who love to interpret facts and tells story through data, using Ms. Excel, Excel VBA automation, Power BI, Tableau, SQL, Power Query, DAX. Through 8+ years' experience, I have worked around 90+ project with 100% success & satisfaction rate from my clients.
I do very much dedicate myself to the success of my clients, and I focus exclusively on helping you achieve your goals that might be within these areas:
- Professional dashboard KPIs design
- Pivot tables, complex dynamic formulas
- VBA automation within & cross-program Ms. Excel to PDF/Ms. Word (Mailmerge)/ PowerPoint/Outlook with 50+ modules, based on a real business case
- Solved many business process using excel: supply chain, operation, sales, manufacturing, etc.
Fluent in Indonesian and English both written and spoken.
Bachelor degree in Chemical Engineering, logical & coding enthusiast,
Today, pursuing career as a freelancer fully in Ms. Excel, PowerBI, Tableau, SQL.
I'd love the opportunity to help you achieve the results you are after. Let's get to work!
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Emerald Tiger
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Kinetic Investments
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Summa Linguae
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