Dedy Prasetyo Hermawan

Dedy Prasetyo Hermawan

> AI Engineer | Production RAG & Agent Systems _

I build production-grade AI pipelines and agent workflows — not just demos. 6+ years full-stack engineering backing every system I deliver.

6+

Years of Experience

20+

Projects completed

12+

Technologies mastered

500+

Code commits

About Me

Building Production AI Systems

From RAG pipelines to agent workflows — AI engineering that ships to production, not just demos.

AI Engineer with 6+ years of full-stack experience. I specialize in production RAG pipelines, AI agent systems, semantic search, and LLM-powered features that create measurable business outcomes.

Built enterprise semantic search with OpenAI embeddings + Pinecone serving thousands of users. Deployed RAG chatbots with document parsing and real-time response handling. Engineered AI recommendation systems for consumer applications.

I bridge the gap between AI prototypes and production — evaluation frameworks, observability, error recovery, and cost management. Clean architecture, rapid delivery, real business impact.

Education

Bachelor Degree in Nuclear Engineering

Universitas Gadjah Mada

July 2012 - November 2016 - GPA 3.35

Download Resume

Tech Stack

Skills & Technologies

Core technologies across frontend, backend, mobile, and delivery tooling.

Frontend Development

  • React
  • Next.js
  • Svelte
  • Astro
  • Tailwind CSS
  • Responsive UI

Backend Development

  • Node.js
  • Express
  • NestJS
  • Go
  • REST APIs
  • Auth & RBAC
  • PostgreSQL
  • MySQL

Mobile Development

  • React Native
  • Flutter
  • Cross-platform Apps
  • Redux
  • BLoC

DevOps, AI & Collaboration

  • Git, GitHub, GitLab
  • GitHub Actions
  • CI/CD
  • Docker
  • Firebase, Prisma ORM
  • RAG Chatbot, Prompt Engineering
  • Mentoring & Ownership

AI & Machine Learning

  • RAG Pipelines
  • OpenAI Embeddings
  • Pinecone Vector DB
  • LangChain / LangGraph
  • Semantic Search
  • LLM Prompt Engineering
  • AI Agent Systems
  • MCP (Model Context Protocol)
  • Hallucination Detection

Experience

Professional Journey

Roles and outcomes across product engineering, delivery, and platform development.

Software Engineer

May 2025 - Present

ARIF ANALYTICS - Remote

Built an AI-powered analytics platform and redesigned web profile/app experiences in close collaboration with stakeholders.

  • Improved web profile performance, accessibility, and SEO.
  • Delivered a new web profile and web app design system on a tight timeline.
  • Implemented responsive UI components for consistent cross-device UX.
ReactNext.jsTypeScriptTailwind CSSSEO

Software Engineer

October 2025 - January 2026

PT. Kalbe Farma Tbk - Jakarta, Indonesia

Architected and delivered a full-stack learning platform with RBAC, semantic search, and stronger release quality controls.

  • Delivered a functional MVP in 2 months, ahead of a 3-month target.
  • Implemented OpenAI embedding + Pinecone semantic search for contextual training discovery.
  • Reduced production bugs by automating critical user flows with Playwright E2E tests.
Next.jsNode.jsTypeScriptRBACOpenAIPineconePlaywright

Freelance Software Engineer

March 2025

CROSVA - Australia (Remote from Jakarta)

Designed CI/CD workflows to automate releases and streamline engineering delivery.

  • Reduced deployment time from 20-30 minutes to under 10 minutes.
  • Lowered release errors by replacing manual steps with scripted workflows.
  • Improved developer productivity and reduced release downtime.
GitHub ActionsCI/CDDockerAutomation

Software Engineer

July 2021 - March 2025

PT. Visi Nusapati Utama - Jakarta, Indonesia

Led cross-industry product delivery, spanning financial reporting, insurance automation, and operational dashboards.

  • Led 3 engineers to build a financial reporting app with real-time budget tracking and analytics.
  • Built an insurance automation system that cut turnaround from 3 days to 1 day.
  • Delivered 10+ projects across logistics, insurance, and e-commerce with strong stakeholder alignment.
ReactNext.jsNode.jsTypeScriptPostgreSQLMySQLREST API

Software Engineer

May 2024 - January 2025

Membagi - Jakarta, Indonesia

Led delivery of an integrated ecosystem across web profile, admin dashboard, and mobile apps.

  • Launched web and mobile platforms in under 6 months.
  • Built an AI recipe recommendation system using leftover ingredient data.
  • Improved operational visibility through connected admin and mobile experiences.
Next.jsReact NativeFlutterAI Recommendation

Freelance Frontend Engineer

October 2024 - December 2024

Twilink - Australia (Remote from Jakarta)

Built a scalable influencer platform with responsive UI and real-time dashboard integrations.

  • Delivered MVP 1 week early to enable earlier beta onboarding.
  • Implemented responsive UI components for cross-device consistency.
  • Integrated backend APIs for analytics, content scheduling, and earnings dashboards.
ReactNext.jsTypeScriptREST API

Freelance Frontend Engineer

September 2024 - October 2024

Codedata - Australia (Remote from Jakarta)

Developed the frontend for an AI-powered RAG chatbot with context-aware responses.

  • Completed and deployed MVP within 4 weeks for demo and testing milestones.
  • Translated UI/UX designs into modular, responsive React components.
  • Collaborated with AI and backend teams on file parsing and real-time response handling.
ReactTypeScriptRAGAI Integration

Software Engineer

October 2019 - July 2021

Nusantech - Jakarta, Indonesia

Delivered client projects, supported requirement discovery, and helped plan an engineering workshop and LMS product.

  • Delivered 5+ client projects on time and within scope with close PM coordination.
  • Mentored high school interns in software development fundamentals and team workflows.
  • Co-developed the concept and MVP for a tech education platform and LMS.
ReactNext.jsNode.jsJavaScriptTypeScriptMySQLGit

Portfolio

Featured Projects

Recent product work focused on usability, performance, and business impact.

AI Agent Starter Kit

AI Agent Starter Kit

Production-ready open-source boilerplate for RAG pipelines, AI agents, and MCP server integration. Built-in evaluation, observability, and cost tracking — not a demo.

TypeScriptLangChainLangGraphOpenAIPineconeMCP
GitHub
Koneksi

Koneksi

Client web platform for managing business workflows with a fast, responsive user experience.

Next.jsTypeScriptTailwind CSSAPI Integration
Demo
Circularis

Circularis

Web application for Circularis focused on structured workflows, clear data views, and responsive UX.

Next.jsTypeScriptTailwind CSSDashboard UI
Demo
Academia Kalbe

Academia Kalbe

Enterprise learning platform for Kalbe with role-based access and scalable training workflows.

Next.jsTypeScriptLMSRBACSemantic Search
Demo

Blog

Latest Posts

Recent notes on engineering decisions, product delivery, and implementation details.

May 15, 2026 - 6 min read

Building a Production RAG Pipeline That Doesn't Hallucinate

From chunking strategies to hallucination detection — how to build a RAG pipeline that actually works in production, not just in a demo.

ragailangchainproductiontypescript

February 14, 2026 - 1 min read

Building a content-driven portfolio without Sanity

How to run a clean CMS workflow using Astro Content Collections and MDX files.

cmsmdxastro

February 13, 2026 - 1 min read

Why I moved my portfolio to Astro

Notes from migrating a portfolio app from hardcoded React data to content-driven architecture.

astroportfoliomigration

Work With Me

Available for AI Engineering Contracts

Production RAG pipelines, AI agents, and full-stack systems. Remote — worldwide. Let's build something that ships.

Send an email