01 / 03
Operate
Keep technology dependable
Workplace systems, devices, networks, deployment, documentation, onboarding, and day-to-day support.
Ansible · Munki · Tailscale · macOS · Infrastructure
Technical Generalist · Phuket, Thailand
I connect operations, software, and automation to turn real workflows into practical systems.
I'm Jesadakorn Kirtnu. I work across day-to-day technology operations, full-stack development, workflow automation, and technical project delivery—especially where people, processes, and systems need to stay aligned.
See the workflowConnect the systemKeep the human decision visible
OperateDependable systems
BuildUseful software
ImproveClearer workflows
Capabilities
Operate. Build. Improve.
Three connected ways I contribute—from keeping systems dependable to building tools and improving how work moves through a team.
02 / 03
Build
Turn workflows into software
Full-stack applications, business systems, role-aware interfaces, integrations, and working prototypes.
Next.js · React · Node.js · Golang · PostgreSQL
03 / 03
Improve
Make processes easier to run
Process mapping, automation, applied AI experiments, documentation, and cross-team coordination.
n8n · Ollama · RAG · Power BI · Project delivery
Selected Work
Systems shaped around real workflows.
A live product, a working business-system prototype, and two applied AI experiments. Each case study separates what is live from what is exploratory.
Live project
EPSX
Public analytics and internal operations interfaces.
A live side project spanning a public analytics product and a separate admin environment, with workflows for account access, data-heavy views, notifications, payments, and developer tools.
Read case study
Working prototype
Folio ERP
A multi-stage financial workflow with human review.
A working prototype for document intake, multi-role approvals, accounting review, and settlement, with local AI features used for extraction and suggestions.
Read case study
03 · Experiment
HR AI Agent
An experiment connecting a LINE conversation with n8n, local language-model processing, structured leave data, and a web interface for review.
Read case study
04 · Experiment
AI Contract Analyzer
An experiment that extracts contract information, retrieves related policy passages, and presents possible review points beside the source document.
Read case studyFrom my YouTube channel
See how the systems work.
I share hands-on walkthroughs of the products and AI workflows I build—showing the interface, process, and technical choices in context.
Financial operations
AI finance workflow: receipt to settlement
A complete walkthrough of document intake, AI-assisted extraction, human approvals, accounting review, payment, and settlement in one connected workflow.
Modern workplace
HR AI chatbot: LINE request to one-click approval
See how a familiar LINE conversation becomes structured leave data, moves through an automation workflow, and reaches a web portal for human approval.
Private AI
Contract analysis that stays inside the organization
A practical look at private document processing, contract extraction, intelligent retrieval, and a review experience designed to keep people in control.
Experience
A career across software and operations.
The common thread is practical problem-solving across technology, processes, and the people responsible for them.
2024 — Present
IT Infrastructure Manager
VIGNOLD · Thailand
Supports IT operations, macOS deployment, networking, onboarding, documentation, and coordination between teams in Thailand and Germany.
2024
Senior Full-Stack Developer
Finstable
Worked on ERP and cloud-connected applications across backend services, interfaces, approvals, and business workflows.
2022 — 2024
Head Engineer / Industrial Project Manager
Token Miner
Worked across budgets, equipment, facilities, thermal and power planning, maintenance, procedures, and vendors.
2021 — 2022
IT, Web & Mobile Developer / Freelance Full-Stack Developer
IMT Group · Independent
Built internal, POS, inventory, administration, and workflow-based applications while supporting IT planning and documentation.
Hiring or project collaboration