Software engineer building AI systems, reliable backends, and constrained inference.
I follow a requirement across layers: service topology, model execution, browser evidence, product interfaces, or an input driver. The stack follows the constraint.

• Agentic RAG research - retrieval and evaluation. In a paid research collaboration supporting a Telkom University lecturer's dissertation, I contribute authority-aware retrieval and build document-grounded QA benchmarks, frozen development/blind splits, citation and abstention scoring, and external-system evaluation runners.
• Fradium - WCHL 2025 Fully On-Chain Track winner. I contributed cross-chain transaction-risk analysis, Rust/ONNX/Wasm inference, stable model persistence, ICPSwap integration, wallet features, and Paylink. The project also placed first in the qualification and Indonesia rounds and second in Asia.
• Nara Wallet - NextGen Agents Hackathon winner. I contributed multi-exchange market-data acquisition, deterministic feature scaling, and LightGBM-to-ONNX execution-cost inference for a Wasm-compatible conversational wallet.
• SpecHeal - Refactory Hackathon 2026 second place. On a two-person team, I built evidence-gated Playwright recovery with DOM and screenshot capture, structured AI evaluation, browser rerun proof, patch previews, and audit trails.
• Nova AI Wallet - wallet intelligence and agents. I built counterparty/whale analysis, scam filtering, ENS validation and live-data aggregation, connecting natural-language requests to wallet actions with transaction previews and human confirmation. The team received 1st Notable Mention and 1st Social Media Challenge at SEA Lisk Builders Challenge 3.
• Marketizen - backend and deployment owner. I built a Go marketplace as a modular monolith with PostgreSQL, RabbitMQ, Redis, PgBouncer, Traefik, and Docker Swarm. A 1,000-virtual-user plateau completed 20,320 requests with all 40,640 semantic checks passing at 328.57 ms p95 latency.
• PayGate - funded development. A paid API gateway on Stellar testnet, where I implemented persistent payment-state handling and withdrawal reconciliation. The project was accepted for a USD 5,000 Stellar Community Fund Instaward.
• Nabu A1931 Bridge - shipped compatibility work. I built native Android multitouch and Windows Precision Touchpad support for an A1931 Bluetooth keyboard case on Xiaomi Pad 5, with public source, guarded packages, checksums, and rollback documentation.

• ICoAILO 2026 co-author: Authority-Aware Agentic Retrieval-Augmented Generation for Academic Regulation Question Answering, with conference author recognition in October 2026.
• AWS Prompt the Planet Challenge 2026: one of ten winners. My AWS Secrets Manager Migration Guide received a USD 5,000 AWS Activate credit prize.
• FFmpeg upstream contribution: a merged C fix for DXGI input-buffer handling affecting Qualcomm H.264 encoding on Windows ARM64, supported by matched patched/unpatched hardware comparisons.
• Dicoding DCML - Machine Learning with TensorFlow: certified July 2025-July 2028; selected among the final ten in the IDCamp ML track for sponsored certification.
• Software copyright co-creator: EVASION and EVASION-MAE, alongside the recorded Marketizen work.

• Retrieval, agents and evaluation: RAG, tool workflows, document-grounded benchmarks, source provenance, citation/abstention scoring, and evidence-gated recovery
• Applied ML systems: Python, TensorFlow/TFX, PyTorch, ONNX, LightGBM, XGBoost, graph neural networks, and constrained inference
• Backend and distributed systems: Go, PostgreSQL, RabbitMQ, Redis, event-driven architecture, API gateways, Docker, Kubernetes, and load testing
• Constrained platforms: Rust, WebAssembly, Internet Computer, Stellar/EVM, Android input systems, Bluetooth HID, UMDF, and Windows on ARM
• Product and quality: TypeScript, React/Next.js, Playwright, CI/CD, human confirmation flows, interface prototyping, and reproducible validation

• Private self-consistency research separating proposal generation from belief accountability through compression, provenance, counterfactuals, sandbox tests, and composition. This remains WIP.

Smaller public experiments cover wallet orchestration, execution-cost prediction, Bitcoin and Ethereum forensics, and recommendation mechanics. Not every repository needs to pretend it is a product.

Bachelor of Software Engineering, Telkom University (2026) | GPA 3.90/4.00 | thesis A
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