About Me

Hello! I'm Lim Chee Kin, a Senior Tech Lead, AI Engineer, and Solution Architect with a deep passion for AI engineering. I bring over 25 years of experience delivering advance software solutions by aligning business needs with technical design and implementation.

My expertise lies in architecting and implementing open-source AI, local AI infrastructure, and data sovereignty solutions, particularly for mobile-first web applications. I'm dedicated to building and leading teams to innovate with privacy-preserving and democratized AI.

I am committed to standardizing processes, driving innovation in the AI space, and continuously exploring new frontiers in technology.

Technologies I work with:

  • AI Engineering
  • RAG Systems
  • LLM Integration
  • Python
  • Java
  • Gemini API
  • Docker
  • AWS
Professional headshot of Lim Chee Kin

Work Experience

AI Engineer & Solution Architect @ RAG.WTF & AI Initiatives

2021-01 - Present

  • Launched the Project Concord, a TypeScript-based, Dockerized Model Context Protocol (MCP) server that bridges modern AI agents with legacy databases by translating ambiguous schemas into clear, AI-friendly interfaces.
  • Championed and developed open-source AI solutions focusing on data ownership, privacy, and efficient local AI processing; architecting and building RAG.WTF as a platform for secure, personalized knowledge discovery and management.
  • Engineered 'open-text-embeddings', a Python library providing an OpenAI-compatible API for diverse open-source sentence transformer models, enabling significant cost reduction and eliminating vendor lock-in.
  • Developed 'Talk To AI' application, integrating HuggingFace's FastRTC for low-latency real-time voice AI interactions; engineered a flexible backend supporting local and cloud-based STT, LLM, and TTS APIs.
  • Pioneered and operationalized a self-hosted AI infrastructure (Coolify, Docker), running multiple local LLMs (Llama 3.2, DeepSeek-R1, etc.) and STT/TTS for data privacy and operational control.
  • Advocated for and implemented robust data sovereignty by integrating embedded database solutions like SurrealDB.wasm with RAG.WTF.
  • Strategically utilized TensorDock and Modal for scalable cloud GPU servers and serverless execution AI/ML workloads, complementing local AI capabilities.
  • Previously initiated Talking Book YouTube channel (AI-powered summaries and Telegram bot) and Fluwix (Flutter showcases).
Open-Source AIRAGMCPPythonText EmbeddingsFastRTCDockerLocal LLMsSurrealDB.wasmModal.comFastAPIFlutterVoice AISolution Architecture

Senior Java Tech Lead @ DXC Technology

2013-01 - 2020-12

  • Led a 6-developer international team (China, Europe, Malaysia) to deliver the Analytic Console for the Agile Process Automation (APA) platform (VueJS, Spring Boot, GoLang, MongoDB, AWS), contributing millions to company revenue.
  • Headed a 5-developer international team (US, Malaysia) to create the EPIC Configurator for internal Enterprise Invoice Processing (JQuery UI, Grails Framework, Oracle DB), significantly streamlining configuration processes.
  • Implemented a Divestiture and Acquisition (DnA) dashboard (AngularJS, Jersey, Spring, MongoDB, AWS) for critical real-time data insights supporting strategic executive decision-making.
  • Prototyped an Intelligent Voice Agent (Conversational AI) leveraging Amazon Connect, AWS Lambda, Amazon Lex, Dialogflow, and Micronaut Framework.
JavaSpring BootVueJSGoLangMongoDBAWSJQuery UIGrails FrameworkOracle DBAngularJSMicronautConversational AITeam Leadership

Senior Java Tech Lead @ Zurich Technology Services Malaysia

2012-01 - 2013-12

  • Led a 5-member production support and development team for motor and property claims systems (IBM WebSphere, FileNet, DB2, Spring, GWT, Hibernate/JPA).
  • Resolved over 60 critical production issues within weeks, dramatically improving system stability and user satisfaction.
JavaIBM WebSphereFileNetDB2SpringGWTHibernate/JPAProduction SupportTeam Leadership

Independent Software Professional @ Self-Employed

2010-01 - 2012-12

  • Developed and maintained impactful open-source Grails Framework projects, including BPM workflow, form builder, and validation components.
  • Grails Activiti Plugin: BPM workflow system; grew the forum to 100+ members, addressed 100+ queries.
  • Grails Form Builder Plugin: Empowered non-programmers to create online forms.
  • JQuery Validation UI Plugin: Enhanced developer productivity with client-side validation.
  • Explore all 10+ projects at limcheekin.blogspot.com/p/my-grails-plugins.html.
Grails FrameworkActiviti BPMJQueryOpen Source DevelopmentPlugin DevelopmentGroovyJava

Senior Solution Consultant @ Penril Datability (M) Sdn. Bhd.

2008-04 - 2010-07

  • Led the successful tender for a RM6 million Internet Banking System (IBS) for Kuwait Finance House (KFH).
  • Designed and proposed comprehensive IBS solutions, covering 24x7 web layers, external integrations (Payment Gateway, SMS, Email), application platform, 2-Factor Authentication (2FA), Enterprise Service Bus (ESB) for backend integration, and High-Availability infrastructure.
  • Led a 3-member team to develop KFH's information website using BroadVision 8.1 Business Agility Suites and Oracle 10g, including JSR168 compliant portlets like Prayer Times and Currency Converter.
  • Secured a RM2 million eCustody System tender from Malayan Banking Berhad.
  • Provided pre-sales support, product demonstrations, solution consultation, and Proof-Of-Concepts (POCs) to major financial and corporate clients (e.g., Maybank, BSN, BNM, Agrobank, ING, Bank Islam).
Solution ConsultingTender ManagementBanking SystemsSolution ArchitectureBroadVisionOracle 10gJSR168 PortletsBPMNRequirements AnalysisPre-SalesTeam Leadership

Technical Lead @ CMG Online Sdn. Bhd.

2005-04 - 2007-12

  • Led an 8-member international team (China, India, Malaysia) to deliver a RM2 million Integrated Hospital Inventory System (IHIS4) for government hospitals, using AIX UNIX, JBoss 4.0, Oracle 10g, J2EE, Struts, and JasperReports.
  • Drove Quality Management Systems (QMS): introduced a Standard Development Environment (Eclipse, Subversion, JUnit, Ant), improving team productivity by 20%.
  • Actively participated in the CMMI Committee to define and implement CMMI Level 3 compliant organizational standards and processes.
  • Architected and developed a common technical foundation for the Integrated Hospital Information Systems (IHIS5) on AppFuse (J2EE, Spring Framework, Hibernate, JUnit, JMock), including reusable logging and auditing modules with Spring AOP.
Technical LeadershipJ2EEJBossOracle 10gStrutsJasperReportsSpring FrameworkHibernateSpring AOPAppFuseCMMI Level 3QMSSDLCTeam Management

Founder and Senior Consultant @ Media Trend

2004-05 - 2005-03

  • As Founder, led a startup providing web design, website development, web application development, and printing services.
  • Designed and developed websites for clients including Bright Pancar Enterprise and Marklon Industries Sdn. Bhd.
  • Provided printing services (name cards, brochures, cash sales receipts) for various companies.
EntrepreneurshipWeb DesignWeb DevelopmentClient ManagementSoftware Consulting

Software Engineer @ Siemens Multimedia Sdn. Bhd.

2002-10 - 2004-04

  • Developed the core Voice4Info Portal (News Delivery over Phone), including Call Control Components using Java IDL, CORBA, Parlay API, and VoiceXML, collaborating with German colleagues on the Siemens Next Generation Network (NGN) platform.
  • Engineered iTalk, a Unified Phone Conferencing system with instant messaging-like features (presence, contact list, buddy list management).
  • Supervised and coordinated 4 groups of Multimedia University (MMU) final year students on IP telephony projects, ensuring functional prototypes for the Siemens NGN platform.
JavaJ2EECORBAParlay APIVoiceXMLTelephony SystemsSiemens NGNSoftware DevelopmentMentorship

System Engineer (Web Application Development) @ Online One Corporation Berhad

2001-08 - 2002-09

  • Successfully deployed E-Treasury Management Systems to Hitachi Asia Ltd (Singapore) within 2 months, contributing RM1 million in revenue.
  • Developed Fund Transfer, Bank Reconciliation, and General Ledger modules for the E-Treasury system using Cold Fusion, HTML, JavaScript, JavaBean, JDBC, and Oracle 8i.
  • Engineered Business-to-Business (B2B) integration of National Panasonic of Malaysia's purchasing system using Active Server Page (ASP), SOAP, XML, IIS Web Server, and Oracle 8i.
Web Application DevelopmentCold FusionOracle 8iASPSOAPXMLHTMLJavaScriptJDBCSystem Integration

System Engineer @ Tee Yam Holding Sdn. Bhd.

1999-06 - 2000-05

  • Individually designed and developed a comprehensive Touch Screen based Point Of Sale (POS) system, Inventory Control System, and Customer Contact Management system using Visual Basic 6.0, ADO, COM, ActiveX Control, and Microsoft SQL Server 7.0.
  • Developed multimedia game systems, including a Horse Racing Game and Roulette Game, using Visual Basic 6.0, DirectX 7.0 SDK, ADO, and Microsoft Access 97.
Visual Basic 6.0MS SQL Server 7.0ADOCOMActiveXDirectX SDKPOS Systems DevelopmentInventory Control SystemsGame Development