Steve Ngai

Arvato Systems Malaysia is a part of Arvato Systems, providing IT solutions and services to support digital transformation, focusing on industries like media, retail, utilities, and healthcare.

Key Responsibilities

• Coding & Development: Write clean, efficient, and maintainable code.
• Testing & Debugging: Write automated unit and integration tests, and fix bugs to ensure software quality.
• Collaboration: Work with cross-functional teams, including designers, product owners, and QA engineers.
• Documentation: Create technical documentation like database schema diagrams, sequence diagrams, flowcharts, and state diagrams for future reference and team use.
• Performance Optimization: Improve the efficiency of the CI pipeline.
• Process: Participate in Agile Scrum processes, including daily standups, sprint planning, backlog refinement, sprint reviews, retrospectives, and PI Planning to ensure effective collaboration, continuous improvement, and successful project delivery.

Implemented Solutions

• POC Implementations (2024): Led two POCs:
  • Azure Monitor / Application Insights for enhanced observability.
  • Google Ad Manager API Dev Tool to accelerate development and testing for Digital Sales.
• Completed POC (2025): Completed Hangfire-based centralized Job Scheduling in .NET 10.
• Ongoing POC (2025): Developing AI Model Monitoring & Automated Retraining for Google Ad Click Prediction.
• Repository Optimization: Reduced repository size by 24% by cleaning up the package folder.
• Critical Blocker Resolution: Enabled line item status transitions, eliminating the need for costly external consultancy.
• CI/CD Optimization: Implemented a file-based test-skipping mechanism, reducing CI pipeline time by 66%.

Extra Initiative

• AI Hackathon Participation: Competed in Arvato Systems Malaysia: AI Hackathon 2024, collaborating on an AI POC for support ticket management using Python, Google Colab, and JIRA API integration.
• Team Engagement: Volunteered to organize a team-building event for the BMS team during counterpart visits to Kuala Lumpur.
• Knowledge Sharing: Regularly bring out topics for cross-team alignment for improvement. Engaged in discussions on improving code quality with counterparts, introducing:
  • Strategy & Factory Method patterns for better maintainability.
  • Pure unit testing as a new approach.

Accomplishments

• Performance Recognition: Successfully passed 6-month probation with strong results and achieved a good performance review for 2024.

Technology Stack

• Languages & Frameworks: C#, .NET Framework 4.8, .NET 8, Web API
• Backend Tools: Swagger (Swashbuckle), Hangfire, Serilog, Seq
• Databases: SQL Server, Entity Framework Core 8
• Cloud & DevOps: Azure Container Registry, Azure DevOps, Docker
• Monitoring & Testing: Azure Application Insights, NUnit (Unit Test, Integration Test)
• Frontend: JavaScript
• Design Patterns & Principles: Monolith, Factory Pattern, Strategy Pattern, Query Object Pattern, Repository Pattern, DRY, YAGNI, SOC, OOP, Dependency Injection (DI), MVC
• Others: Scrum, Agile, Confluence, MermaidJS, SonarQube / SonarCloud, Google Colab, Python

• Jan 2025: Developed a POC using Python and Retrieval-Augmented Generation (RAG) with a Pinecone-based assistant integrated with LLM GPT-4. Enabled natural language querying of PDF documents, including ebooks and HR policies, with responses strictly derived from uploaded content. | Demo.
• Jan 2025: Developed a POC using the BART transformer model with Hugging Face to summarize PDF text. Integrated PyMuPDF for extraction, Streamlit for an interactive UI, and optimized text processing to address encoding challenges | Demo.
• Oct 2024: Developed a POC which highlights the asynchronous nature of order handling and the integration of Azure Service Bus for messaging using Azure Function App .
• Jun-July 2024: Deployed an eShop using .NET Aspire to both local and Azure environments. Utilized Azure Developer CLI (azd) to provision 15 Container Apps within 11 minutes .
• May 2024: Deployed a minimal starter pipeline in Azure DevOps to build, test, and deploy an ASP.NET Core project, utilizing stages for artifact download and deployment to an Azure Web App.
• July-Aug 2023: Built a Dagster ETL data pipeline in Python, scheduled to run hourly. Fetched data from Hacker News API and generated CSV, and read data from SQL Server.
• June 2023: Configured eShopOnContainers with Azure Kubernetes Service (AKS) for CI/CD using GitLab Actions. Integrated Azure Active Directory for authentication.
• June 2023: Deployed .NET 7 eShopOnContainers to Local Kubernetes using Docker Desktop and Helm.
• May 2023: Built a mock eCommerce microservices solution using GraphQL, Azure Functions, and Azure Service Bus.
• May 2023: Developed Azure Functions demo projects (Blazor Server + Web API). Integrated Azure AppInsights for monitoring.
• Mar 2023: Optimized online resume for 100/100 GTmetrix performance and 90/100 in Pingdom.
• Mar 2023: Deployed a Jekyll-based website with GitHub Actions CI/CD.
• Feb 2023: Built a mock Ethereum blockchain Web API using .NET 7 and EF Core in 3-4 days.
• Nov 2022: Automated code reviews in Azure DevOps CI pipeline with SonarQube and SonarCloud.
• Aug 2022: Deployed .NET 6 Web API to Azure using GitHub Actions (CI/CD).
• July 2022: Implemented and monitored automated tests in Azure DevOps CI/CD pipeline.
• May 2022: Deployed Task Tracker API in .NET 6 and refactored Task Tracker React app for API consumption.
• Oct 2021: Integrated SpecFlow + Living Doc in .NET 6.
• July 2021: Implemented SonarCloud (Code Analysis) with GitHub Actions .
• Jun 2021: Migrated online resume to Pug + SCSS, reducing file size by 40% and improving maintainability.
• Apr 2021: Parsed 1,000 complex XML files into Elasticsearch using NEST C# in 15 minutes with advanced search options.
• Feb 2021: Completed take-home technical assignment in 24 hours (given 48 hours). Built a .NET Core Web API service to upload, parse, and query transactions from XML & CSV.
• Jan 2021: Parsed 800 XML files (500MB) into MongoDB using Node.js in 1 minute . Parsed 1,800 XML files (4.7GB) into MongoDB using C# in 9 minutes. Ingested XML files into Elasticsearch using Node.js & Python.
• Nov-Dec 2020: Built a JWT-based CRUD web app (Back-end: .NET Core 3.1, Front-end: Vanilla JS).

Quantum Corporation sells scale-out storage, archive, and data protection solutions for capturing, sharing, and preserving digital assets in physical and virtual environments.

Key Responsibilities

• Coding & Development: Write clean, efficient, and maintainable code.
• Testing & Debugging: Write automated unit and integration tests, and fix bugs to ensure software quality.
• Collaboration: Work with cross-functional teams, including designers, product owners, and QA engineers.
• Documentation: Create technical documentation like database schema diagrams, sequence diagrams, and flowcharts for future reference.
• Performance Optimization: Improve the efficiency of applications.
• Automation: Automate manual processes by implementing generic background microservices.
• Data Migration: Perform ETL data migration to ensure seamless data transfer across systems.

Implemented Solutions

• Automated Fulfillment: Developed a background microservice to reduce manual processing.
• IT Asset Management: Built a CMDB system for better IT asset tracking.
• Automated Testing: Introduced and implemented automated unit and integration tests.
• ETL Migration: Developed a .NET 6 ETL service to migrate data from MS Dataverse to SQL Server, cutting Azure costs by ~$3,000/month.
• Performance Optimization: Upgraded ETL migration (40M records) from .NET 6 to .NET 8, achieving:
  • 16% faster bulk operations (7.3M records)
  • 30% faster smaller transactions (630K records)
• Process Automation: Built a static HTML email utility and Power Automate workflows to streamline internal tasks.

Extra Initiative

• Tech Exploration: Researched SonarQube (code quality) and Dagster (data orchestration) for future improvements.

Accomplishments

• Cost Reduction: Cut Azure costs by ~$3,000/month through ETL optimization.
• Performance Gains: Boosted ETL efficiency by up to 30% in .NET 8 with no added infrastructure cost.

Technology Stack

• Languages & Frameworks: C#, .NET 6, ASP.NET Razor Pages, MVVM
• Backend Tools: Hangfire, Entity Framework Core
• Databases: SQL Server, MS Dataverse
• Monitoring & CI/CD: Azure App Insights, Health Checks, GitHub Actions

AFFIN Hwang Investment Bank Berhad provides financial services. The Company offers stock brokerage, asset management, treasury bonds, currency exchange, financial advisory, and investment banking services.

Key Responsibilities

• Coding & Development: Write clean, efficient, and maintainable code.
• Testing & Debugging: Write automated unit tests, automated integration tests, and fix bugs to ensure software quality.
• Collaboration: Work with solution architect, CTO, front-end tech lead, back-end tech leads, business analyst, UI/UX designer, data engineer, and end-users.
• Documentation: Create technical documentation like database schema diagram, sequence diagram, and flowchart for future reference.
• Performance Optimization: Improve the efficiency of applications or services.
• Interviewing: Conduct interviews for software engineers.

Implemented Solutions

• Microservice Development: Replaced a monolithic legacy system (.NET Framework 4.x) with a microservice-based automated data ingestion solution using .NET Core 3.1, improving scalability and efficiency.
• Performance Optimization: Enhanced the performance of eInvest Go and the Retail Online Platform by optimizing both front-end and back-end services for better responsiveness and reliability.

Extra Initiative

• Process Improvement: Initiated and developed productivity tracking reports in Jira to monitor team performance.
• Versatility: Transitioned from backend to full-stack development by successfully taking over frontend responsibilities in Vue.js, despite the challenging learning curve.

Accomplishments

• Consistently High Performance: Consistently exceeded expectations in performance appraisals from Aug 2020 to Dec 2022.
• Business Impact: Improved system reliability through REST API development and automated testing, leading to a 20% increase in online trading account openings (eInvest GO).

Technology Stack

• Backend (70%): C# Web Api, .NET Framework 4.x, .NET 2.2, .NET Core 3.1 , EF Core 3 , NUnit, Xunit , Specflow and Living Doc.
• Frontend (30%): VueJs (SFC), Vuex, Javascript, Jquery, Bootstrap, Pug, Scss, NPM, Gulp, Razor Pages.
• Others: Git, Atlassian Jira, Confluence, Azure DevOps, IIS, Figma, Elastic Search, Kibana, NEST, Google Cloud Storage (Google Cloud Platform), mermaidJS, MarkMap.

Eduvo is a vocational school for IT and Business courses.

Key Responsibilities

• Design and develop training programme (Prof. Diploma in Software Engineering).
• Conduct classroom training for software engineering courses: Object-Oriented Programming, Database Design, Web Programming, System Analysis and Design, Data Structure and Algorithm, and Software Architecture.
• Design, develop, and maintain School Management System.
• Lead Education & Operation division.

Implemented Solutions

• Developed a School Management System from scratch using C#, including an automated timetable generation feature that schedules all courses for the entire year and assigns each course to a lecturer.

Accomplishments

• I pioneered and was the first to design and develop the Software Engineering Prof. Diploma programme.
• Software engineering student enrollment grew by 300%, with graduates now employed as full-time programmers in software houses.

Technology Stack

• Backend (70%): C# MVC, Entity-Framework (Code-First), SQL, LINQ
• Frontend (30%): Javascript, CSS, HTML.

GHL is a leading payment service provider and one of the top merchant acquirers in the ASEAN region. We provide world-class payment services and solutions. My job scope are:

• Reported to CTO.
• Created complex monthly IT Resource Utilization report for CTO.
• Managed Product Management department.
• Ensured product gets certified, especially Terminal Quality Management (TQM).
• Handled software and product documentation, i.e user guide, sequence / process flow diagram and matrix diagram.
• Ensured proper source control and software repositories backup and replicated for all the regions (Malaysia, Thailand, Philipinnes and Wuhan).
• Planned and coordinated training for Level 1 and Level 2 Support.
• Maintained maintenance agreement.