Profile

Daffa Abhipraya

AI Engineer, 6x Hackathon Winner

I build software that thinks, scales, and ships.Fullstack apps, AI agents, cloud infrastructure. I build from prototype to deployment, and I've won hackathons doing it.

The road so far

AI Engineer (GTM) Intern

03/2026 - Present

AI Engineer intern supporting Go-to-Market, translating enterprise discovery into Microsoft AI architectures, prototype demos, and business cases to deliver practical AI solutions.

  • Partnered with Business Development on 4 enterprise AI engagements, translating discovery into Microsoft solution architectures, business cases, pitch materials, and live demos for procurement, document operations, analytics, and financial-services workflows
  • Built a procurement and sourcing agent on Microsoft Foundry using SAP Cloud SDK to connect to the client's SAP ECC, S/4HANA, and Ariba APIs, with specialist review and an audit trail; validated 25 model calls on a curated 494-line procurement snapshot, producing 147 proposed RFQ groups in 147.6 seconds
  • Developed a Python evaluation harness for multi-format invoice extraction, benchmarking Microsoft Foundry, Azure Content Understanding, and Azure Document Intelligence across 10 invoices and 3 repeated runs; recommended gpt-5.4 at 83% precision and recall, 8.9s median latency, and Rp792 per invoice
  • Built an end-to-end Azure SRE Agent demo that applies OS, dependency, and in-server updates against compliance checklists and verifies each maintenance step before completion
  • Architected a Microsoft Copilot solution in Microsoft Teams for division leads, connected to a Power BI model to deliver daily priorities and announcements, answer KPI questions, and provide conversational reporting without opening a dashboard

Fullstack & AI Engineer

01/2026 - 07/2026

  • Built the WhatsApp Customer Service AI Agent via the Meta WhatsApp Business API on the Cloudflare Agents SDK with 10+ tools and multimodal receipt workflows; cut LLM cost by roughly 50% through prompt-cache optimization
  • Built user-configured transaction recategorization rules using multi-stage similarity matching across substring, fuzzy, trigram, and Gemini Embedding 001; after 3 consistent corrections for the same merchant and category, Cloudflare Queues triggers an LLM suggestion of a reusable brand pattern for dialog approval
  • Designed a scheduled merchant-enrichment workflow using search and web scraping to create reviewable context for downstream LLM categorization
  • Extended the agent architecture to Telegram, enabling proactive budget alerts and conversational financial assistance alongside WhatsApp
  • Powered 45,000+ AI workflow runs at a 96.2% success rate across Gmail ingestion, email classification, and agent execution, with telemetry and error monitoring through PostHog and Sentry
  • Built the Remix product landing page and made every user-facing workflow I developed available offline with PowerSync local-first sync

Product Engineer Intern

06/2025 - 09/2025

  • Implemented endpoint-level IAM across 3 microservices using Go, JWT RS256, and Redis, with immediate session revocation
  • Delivered the listing-management service with tenant defaults and overrides, product and variant CRUD, plus asynchronous CSV/XLSX bulk operations with job tracking
  • Built a Shopee platform connection module with OAuth 2.0, encrypted token storage, caching, and background refresh, enabling multi-shop connection health and status visibility
  • Established versioned database migrations and standardized API response contracts across services, improving schema-change safety and client integration consistency

Victory laps

Gov-AI Hackathon 2024

Won 1st place among 500+ participants from 3 countries after proposal and pitch rounds with an AI-driven solution.

1st Place

Prize: IDR 0

Bonus:

  • Soundcore TWS
  • Merchandises

Location: Jakarta, Indonesia

JIHS Hackathon 2025

Won 1st place in the final round against 9 other teams with PINTARU, an AI learning platform for narrated explanations and illustrated storybooks.

1st Place

Prize: IDR 0

Bonus:

  • IDR 400.000 Voucher
  • Merchandises

Location: Jakarta, Indonesia

elevAIte Hackathon 2025

elevAIte Hackathon 2025

Won 3rd place in Microsoft's elevAIte Indonesia AI hackathon with a solution built using Azure services. The team advanced to the national final.

3rd Place

Prize: US$ 0

Bonus:

  • Merchandises
  • Microsoft Voucher

Location: Tangerang, Indonesia

Articles:

Selected works

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Marka preview
Marka favicon

Marka

06/2025

WebFull-stackAIOpen source

Maintain and extend an open-source bookmark-everything app for links, notes, images, and AI-assisted organization. I own its production deployment, Docker services, and ongoing product work.

Next.js
Node.js
TypeScript
Docker
Meilisearch
OpenAI
wt preview

wt

2026

CLIAutomationOpen source

An agent-first Git worktree manager for running multiple LLM coding agents on the same project without stepping on each other. It provides one workflow for isolated worktrees, numbered slots, port offsets, setup and teardown, locking, and safety checks, regardless of which coding agent or CLI you use.

Python

SIRA: Smart Invoice Reminder AI

04/2026

WebFull-stackAIAutomation

Built an accounts-receivable automation platform for a client that scores payment risk daily and sends approval-gated reminder emails with tone based on risk. Includes invoice and payment workflows, a finance dashboard, and internal Telegram alerts.

React.js
Vite.js
TypeScript
TailwindCSS
Python
Supabase
PostgreSQL
Redis

Aurum Art Gallery

11/2025

WebFull-stackAIKnowledge graph

Built an AI art-exploration app that combines semantic search, a Neo4j relationship graph, and a RAG museum guide grounded in graph data and Wikidata.

Bun
Next.js
TypeScript
TailwindCSS
Neo4j
Gemini
Vercel AI SDK
Bedah Kampus UI 2025 favicon

Bedah Kampus UI 2025

11/2025

WebFull-stack

Built an event-commerce platform for Bedah Kampus UI 2025, covering ticket sales, merchandise orders, Midtrans payments, QR check-in, and organizer operations.

Next.js
TypeScript
Bun
Supabase
Midtrans