My research and applied R&D experience spans information retrieval, organizational research, engineering design, operations research, higher-education and tourism studies, digital health systems, learning-system evaluation, AI engineering, and AI model evaluation.
AI EngineeringInformation RetrievalTF-IDFQualitative Case StudyHermeneutic AnalysisExergy AnalysisQuality Function DeploymentTraveling Salesman ProblemCSI & IPASystem Performance EvaluationRLHF Evaluation
MBA ThesisWürzburg University of Applied Sciences, now THWS2014
Leadership on Flat Organizational Structure: Focusing on Organization using Self-Managing Team and Open Allocation Strategy
Conducted a qualitative comparative case study of Valve Corporation and GitHub on leadership development in flat organizations.
Examined self-managing teams, open allocation, peer relationships, leader retention, and decentralized decision making using secondary sources and hermeneutic analysis.
B.Eng. ThesisInstitut Teknologi Bandung (ITB)2010
Image Retrieval System using Geotagging Information
Developed and evaluated an image retrieval system combining textual information with geographic metadata stored in JPEG EXIF fields.
Used the vector space model and compared TF, IDF, and TF-IDF weighting schemes; evaluated retrieval using precision, recall, and Non-Interpolated Average Precision.
Demonstrated that geotagging could be integrated with text-based retrieval to support location-aware image search.
Research Projects & Applied R&D
Internally Funded Research2020
Sport Tourism in Lake Toba Area: Moving Forward
Served as a research team member and co-author in a study of sport tourism development and regional development considerations in the Lake Toba area.
Output: Conference paper published in the 2nd Global Conference on Hospitality, Tourism and Sports Management (2023).
Applied Research & Product Development2019
Design and Development of an Andaliman Dryer Using Quality Function Deployment
Coauthored and contributed to the design and development of a functional Andaliman dryer using Quality Function Deployment to translate user and product requirements into an engineering solution.
The team built the physical dryer and formally transferred the completed machine to a local farmer for practical use.
Output: Peer-reviewed article in Jurnal Sains dan Teknologi, 19(2), 133–140; a functional Andaliman dryer delivered for field use; and an associated intellectual property output. DOI
Nationally Competitive Research2018
Performance Investigation of Geothermal Power Plant Based on Exergy and Exergoeconomic Analyses
Served as a research team member and co-author in a quantitative evaluation of geothermal power plant performance using exergy and exergoeconomic approaches.
Output: Peer-reviewed paper in IOP Conference Series: Materials Science and Engineering, 546, 072006 (2019). DOI
R&D EngineeringPT Cipta Srigati Lestari2011
Supply Chain Optimization Tools
Developed Java-based optimization tools for B2B supply chain and operational decision support problems.
The work provided applied experience in computational modelling, optimization, and translating operational requirements into software-based solutions.
Systems & Evaluation Experience
2025–present
AI Model Evaluation & Research Synthesis
Independent consulting
Produced structured research and evaluation deliverables for international clients, including AI model output assessment and research synthesis. Used RLHF-based evaluation workflows and collaborated with data scientists, UX researchers, and AI engineers on response quality, accuracy, safety alignment, and instructional content evaluation.
2023–2024
Rocketversity Learning System Implementation & Evaluation
Suitmedia
Led the design and rollout of a Moodle-based learning system across 15 operational teams, including 120 SCORM-compliant courses and xAPI-based tracking. Used participation data, feedback, and learning progress information to support continuous improvement; the program supported more than 100 new hires and contributed to a reported 30 percent reduction in time to productivity.
2018
Astra Lean Production System Teaching Laboratory
Institut Teknologi Del
Contributed to a practice-oriented teaching laboratory for production systems and helped translate lean production concepts into structured learning activities covering 5S/5R, waste identification, flow improvement, kanban/JIT, standardized work, and continuous improvement.
2015
OpenSRP Implementation & Field Performance Analysis
Summit Institute for Development
Supported implementation of an Android-based maternal and child health workflow system across 16 districts while directing four developers and six field workers. Conducted a field timing analysis, diagnosed an XLSForm performance bottleneck, and coordinated an interim solution that reduced loading time from up to 20 minutes to under 10 seconds.
Contact
For research collaboration, doctoral supervision discussions, or questions about the work presented here, you can reach me through the channels below.