Conversational AI agents
WhatsApp and Telegram agents with memory, tools and structured outputs that qualify leads, book appointments and run internal requests.
AI AgentRAG / FAQRedis debounce
Open to new opportunities
n8n Ambassador
I build AI automations that run the repetitive parts of a business.
AI Automation Engineer & n8n Ambassador. I design production systems — AI agents, monitoring pipelines and document engines — that connect the tools teams already use and keep working when no one is watching.
$ whoami → Johan Reinaldo Jianta · AI Automation Engineer · Makassar, Indonesia
lead-intake.workflow active
- production workflows
- 29 production workflows
- nodes shipped
- 600+ nodes shipped
- client systems
- 8 client systems
- countries served
- 3 countries served
- full-stack apps
- 2 full-stack apps
- per report, down from 1 hour
- 2 min per report, down from 1 hour
// 01 — about
Hi, I’m Johan.
I’m an AI Automation Engineer based in Makassar, Indonesia, and an official n8n Ambassador. I hold a BTech in Informatics from Universitas Ciputra Surabaya.
I like the unglamorous part of AI: turning a fuzzy business process into something that runs every day without supervision. That means understanding the people doing the work first, then designing systems with proper error handling, deduplication and observability — not just a demo that works once.
I work comfortably across the stack: n8n and AI agents on one side, React, TypeScript, Postgres and serverless APIs on the other.
// 02 — selected work
Systems running in production
Each project opens into a case study with the real workflow architecture — rebuilt from the original n8n exports with all client data stripped out.
* Client names withheld under confidentiality. Data shown is anonymized or mock.
// 03 — capabilities
What I build
Document & report automation
OCR, extraction and templated generation: from emailed PDFs and SFTP exports to finished quotations and reports.
Dual-model OCRDocs → PDFSFTP
Monitoring & SLA systems
Ingestion across channels, AI classification, breach detection and daily digests so nothing important goes unnoticed.
DedupPII scrubbingScheduled digests
Generative media pipelines
Orchestrated image and video generation with async job polling, consistent characters and a tracked asset state.
Orchestrator / workerAsync pollingModel-agnostic
Internal tools & dashboards
Full-stack TypeScript apps when a workflow needs a real interface: auth, role-based access, data views and file import/export.
ReactPostgresServerless API
Systems integration
Connecting SaaS, databases and APIs into one reliable flow — with retries, idempotency and clear failure paths.
REST APIsWebhooksSub-workflows
// 04 — toolbox
Integrations I work with daily
Automation
- n8n
- Webhooks
- REST APIs
- Cron / schedules
- SFTP
AI & LLMs
- OpenAI
- Gemini
- DeepSeek
- OpenRouter
- AI Agents
- Tesseract OCR
- Kie.ai
Messaging
- WhatsApp (WAHA)
- Telegram
- Gmail
Google Workspace
- Sheets
- Docs
- Drive
- Calendar
Data
- PostgreSQL
- Supabase
- Redis
- Drizzle ORM
Web
- TypeScript
- React
- Vite
- Tailwind CSS
- Node.js / Express
- Vercel
// 05 — how I work
From messy process to reliable system
- 01
Discover
Sit with the people doing the work and map the real process, edge cases included.
- 02
Design
Split the system into small, testable workflows and decide where AI belongs — and where it doesn’t.
- 03
Build
Implement with real data early, iterating on prompts and logic against actual messages and files.
- 04
Harden
Add dedup, idempotency, retries, PII handling and alerts so it survives production traffic.
- 05
Hand off
Document, train the team and keep configuration in data so the business can adjust it.
Engineering patterns I rely on
- ◆ Redis debounce
- ◆ Idempotent claims
- ◆ Dedup checks
- ◆ Dispatcher / worker
- ◆ Modular sub-workflows
- ◆ PII scrubbing
- ◆ Structured outputs
- ◆ LLM-agnostic routing
- ◆ Async job polling
- ◆ Config-as-data
- ◆ Hashed session tokens
- ◆ Tenant scoping
// 06 — experience
Where I have shipped
-
n8n
Community programn8n Ambassador Sep 2026 — Present
- Selected as an official ambassador for the n8n workflow automation platform.
-
AtScale Consultants
AI consulting · ContractAutomation Engineer Jul 2026 — Present
- Build AI-powered workflow automations integrating APIs, SaaS platforms and LLMs for small and mid-sized businesses.
- Run R&D and feasibility studies before committing to a solution.
- Ship custom CRM systems and dashboards as full-stack web apps.
-
WithMi Automation
AI & automation agencyLead Automation Developer Mar 2026 — Jul 2026
- Led client automation projects from discovery and solution design through to production.
- Translated business requirements into maintainable automation architectures.
- Mentored interns and provided technical direction on client work.
Automation Developer Dec 2025 — Feb 2026
- Designed and implemented workflow automations that removed manual operational work.
- Troubleshot and optimized workflows for reliability and performance.
-
Kodeka Labs
PT. Kodeka Digital RayaAI Automation Engineer Jul 2025 — Nov 2025
- Built end-to-end automations connecting communication platforms, dashboards and data systems.
- Applied AI and prompt engineering to improve customer interactions.
-
Freelance
Self-employedFreelance Developer Aug 2024 — May 2025
-
Universitas Ciputra Surabaya
BTech, Informatics · 2022 – 2026Student Academic Division, Informatics Student Union Nov 2023 — Jun 2024
// 07 — contact
Have a process that should run itself?
I’m open to full-time roles as an AI Automation Engineer or Developer, remote or on-site. The fastest way to reach me is email.
johanreinaldojianta@gmail.com