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© 2026 Wahyu. All rights reserved.

Available for opportunities
Jakarta, Indonesia
GMT+7

Hi, I'm Wahyu 👋

Building intelligent solutions as an aspiring AI Engineer, Data Scientist, Data Analyst, Machine Learning Engineer, Data Engineer, Software Engineer, Business Intelligence Analyst|

When I'm not coding, I'm probably at a coffee shop or exploring new tech. ☕️

Wahyu tossing his graduation cap in front of the Universitas Indonesia rectorateWahyu presenting his thesis defense with the examining committeeWahyu in his graduation sash with the Universitas Indonesia rectorate behind himWahyu with colleagues on a company visit to PwCWahyu at his thesis defense, Fakultas Ilmu Komputer UIWahyu and a friend on Universitas Indonesia campus at dusk
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About

I'm a Computer Science graduate from Universitas Indonesia interested in building useful products with AI and data. My work has taken me across legal AI, medical imaging software, fraud analytics, and student leadership—teaching me to move comfortably between data, models, products, and people. I enjoy making sense of messy problems and turning them into solutions that are clear, useful, and practical.

Location

Jakarta, Indonesia

Local Time
Languages

English, Indonesian

Personality

ESFJ-T

Experience

Aug 2026 – Present
Telkom Indonesia logo
Telkom Indonesia

Selected for a data-driven AI internship at Telkom's EBIS division, focused on improving customer contact effectiveness and revenue leveraging.

  • –Project analyzes a low customer contacted rate (currently 18%) and builds AI-driven solutions to improve contact effectiveness, progressing through data preparation, model development, and AI integration phases over the internship.
Data AnalyticsSQLAI/MLExcel/Google Sheets
Aug 2026 – Present
Faculty of Computer Science, Universitas Indonesia logo
Faculty of Computer Science, Universitas Indonesia

Selected to support two undergraduate courses: Cloud Computing and Social Media Analytics.

  • –Cloud Computing covers AWS-based deployment, IaaS/PaaS/SaaS, containers, Kubernetes, and serverless services.
  • –Social Media Analytics covers social media text analytics (text processing, classification, sentiment analysis, topic modeling), social network analysis (centrality, community detection, link prediction), and location-based and user profiling analytics.
AWSKubernetesDockerSocial Network AnalysisNLPSentiment Analysis
Jan 2026 – May 2026
PT Badr Interactive logo

PT Badr Interactive

Built and hardened features for a medical imaging platform as a full-stack engineering intern.

  • –Delivered a full-stack export feature across a Python backend and React/Vue 3 frontends, generating standard DICOMDIR archives so hospitals could move radiology studies to CD/DVD or other imaging systems.
  • –Fixed a bug that showed stale study results during rapid filtering by canceling outdated requests, and added a 10-second background refresh so new AI-processed radiology studies appear without manual page reloads.
  • –Audited and hardened role-based access control (RBAC) across the viewer and admin modules, replacing a fragile permission-count check with the authenticated role and fixing denials that returned 502 instead of 403.
PythonReactVue.jsRBACFull-Stack Development
Jul 2025 – Dec 2025
Universitas Indonesia Center for Legal Informatics logo
Universitas Indonesia Center for Legal Informatics

Researched and developed AI solutions for legal informatics, focusing on retrieval-augmented generation for legal question answering.

  • –Cut response time on a retrieval-augmented generation (RAG) legal chatbot from 60-120s to 20-30s per query by parallelizing hybrid retrieval and batching Gemini embedding requests.
  • –Added a citation-validation layer that checks every legal reference against Elasticsearch to reduce AI hallucinations, surfacing them as clickable numbered citations in a React/TypeScript interface.
  • –Hardened the FastAPI microservices with split environment configs, RabbitMQ retry limits, and a fallback from Pinecone to Elasticsearch, and expanded the legal corpus with Presidential Regulations.
RAGFastAPIElasticsearchPineconeRabbitMQReactTypeScriptLLMs
May 2025 – Feb 2026
BEM Fasilkom UI logo
BEM Fasilkom UI

Co-led the student executive board, overseeing strategic initiatives and representing the organization in faculty and university forums.

  • –Co-led a 167-member student executive board alongside the President, overseeing six divisions comprising eleven departments and bureaus.
  • –Reviewed and approved program proposals during the exploration phase, filtering initiatives against organizational priorities before execution.
  • –Represented the organization externally in a company visit to GoTo, a partnership proposal to PwC, inter-university exchanges with HMIF ITB and HIMATIF UNPAD, and university-wide forums on tuition policy.
LeadershipProject ManagementStrategic PlanningExternal Relations
Aug 2024 – Jan 2025
Faculty of Computer Science, Universitas Indonesia logo
Faculty of Computer Science, Universitas Indonesia

Supported student learning in MIPS and AVR Assembly through labs, tutorials, and exam reviews.

  • –Designed problem sets and worked solutions for homework, tutorials, and lab modules on MIPS and AVR.
  • –Facilitated weekly lab and tutorial sessions for 46 students, teaching assembly programming, datapath design, and I/O handling.
  • –Conducted midterm and final exam review sessions and wrote the accompanying study materials.
MIPSAVR AssemblyTeachingComputer Organization
Mar 2024 – Feb 2025
BEM Fasilkom UI logo
BEM Fasilkom UI

Led a 9-member team to deliver 7 programs enhancing student welfare and advocacy.

  • –Advocated on tuition fees, mental health, and financial aid
  • –Acted as liaison between students and faculty administration
  • –Negotiated solutions to address academic and social concerns
AdvocacyTeam LeadershipPolicy Negotiation
Apr 2023 – Feb 2024
BEM Fasilkom UI logo
BEM Fasilkom UI

Managed department social media to promote welfare programs and engage the student community.

  • –Created and shared content on academic policies, aid, and mental health
  • –Handled student inquiries with accurate and timely responses
  • –Collaborated on strategies to increase student engagement
Social Media ManagementContent CreationStudent Engagement

Selected work

Vectorless vs. Vector Retrieval for Legal Documents

Vectorless vs. Vector Retrieval for Legal Documents

2026

Undergraduate thesis comparing vectorless LLM reasoning against dense vector retrieval on Qdrant for locating provisions across 308 Indonesian regulations, tested with paired randomization tests over 10,000 permutations and Holm-Bonferroni correction.

MAP@10: 0.88 (vector) vs. 0.95 (vectorless)

PythonQdrantHugging FaceBM25LLM Evaluation
Sokratech Fraud Risk Automation

Sokratech Fraud Risk Automation

2025

Built a fraud risk platform with a 7-person team for Sokratech, migrating its dashboard from Django to Next.js and Bun and adding FastAPI-based Weight of Evidence scoring.

Next.jsBunFastAPISupabaseDockerPrometheusGrafanaWeight of Evidence (WoE)
Live Demo ↗
Multimodal Image Search Engine

Multimodal Image Search Engine

2026

Combined BM25 lexical and CLIP semantic retrieval with reciprocal rank fusion over 31,783 captioned images, adding Rocchio pseudo-relevance feedback and Gemini query expansion, then replaced brute-force FAISS search with an HNSW approximate index for faster retrieval.

31,783 images indexed

PythonFastAPIFAISSCLIPGemini
CV-to-Job Matching Platform

CV-to-Job Matching Platform

2025

Built the AI matching service for a 5-person team on a Dockerized FastAPI backend on AWS EC2 with private S3 storage and Lambda PDF extraction, applying prompt engineering to Gemini 2.5 Flash for structured match scores, summaries, and skill gaps.

PythonFastAPIGeminiAWSDocker
Diffusion-Based Image Inpainting

Diffusion-Based Image Inpainting

2025

Adapted RePaint diffusion inpainting to emoji restoration, training a denoising diffusion probabilistic model from scratch on 3,440 triplets over 100 epochs at 256x256 resolution, evaluated with PSNR, SSIM, and LPIPS against ground truth.

12.65s per image at 100 diffusion steps

PyTorchDiffusersDDPMComputer Vision
Political Sentiment Analysis on YouTube

Political Sentiment Analysis on YouTube

2025

Collected 115,187 comments from 1,257 videos via the YouTube Data API, normalized Indonesian slang and political terms, then extended the InSet sentiment lexicon with contextual negation handling to correct its negative bias.

115,187 comments classified

PythonNLPYouTube Data APIPandas
Biomedical Organ Classification from CT Scans

Biomedical Organ Classification from CT Scans

2025

Trained a ResNet-34 from scratch to classify 11 organ types across 61,486 CT scans with class-weighted loss, affine augmentation, and Optuna hyperparameter search, then isolated the effect of residual connections through an ablation study.

0.974 validation F1

PyTorchResNet-34OptunaDeep Learning
Anomaly Detection in Customer Purchasing Patterns

Anomaly Detection in Customer Purchasing Patterns

2025

Mined association rules across 541,909 retail transactions and helped package a 7-person team's segmentation, rule-mining, and anomaly-detection pipeline into Streamlit.

541,909 transactions analyzed

PythonStreamlitScikit-learnPandasK-Means ClusteringFP-GrowthIsolation ForestCRISP-DM
Live Demo ↗Source Code
wahyuht

wahyuht

2025

Responsive portfolio website built with Next.js and TypeScript, featuring light and dark themes and restrained motion with Framer Motion.

Next.jsReactTypeScriptTailwind CSSFramer Motion
Live Demo ↗Source Code
Letterbookd

Letterbookd

2023

Full-stack social platform for book enthusiasts with a Django web app and Flutter mobile app, enabling profile management, search, and real-time data sync.

DjangoFlutterDartBootstrapSQLREST API
Source Code

Capabilities

Languages

PythonJavaScriptTypeScriptJavaGoDartSQL

AI & Machine Learning

Natural Language ProcessingComputer VisionDeep LearningLLMsRAG

ML Frameworks

PyTorchTensorFlowScikit-learnHugging FaceOpenCV

Web & Frameworks

ReactNext.jsVue.jsDjangoSpring BootFastAPIFlutterBunStreamlit

Data & Analytics

PandasNumPyMatplotlibSeabornPostgreSQLElasticsearchPineconeFAISS

Tools & Cloud

GitDockerKubernetesAWSGCPPrometheusGrafanaJupyter

Education

Aug 2022 – Jul 2026
Universitas Indonesia logo

Bachelor of Computer Science

Universitas Indonesia

Contact

Let's Connect

Open to exciting projects, collaborations, or a quick hello.

wahyuuhidaayat@gmail.com