2–8 weeks
Fixed-scope project
A defined build with a fixed price: an AI workflow, an API, an internal tool.
- Written scope & timeline
- Weekly demos
- Code, docs and handover
Custom quoteBook a free call about Fixed-scope project →
Open for new projects · 1 at a time
Senior engineering help, a few projects a year.
Alongside my full-time role, I take on one or two well-scoped projects at a time for startups, SMEs and non-profits. You work with me directly: no agency layer, written scope, weekly demos.
- 4+ years building production systems
- Hands-on lead of 8 engineers
- 15+ client products shipped
- ID · EN · 中文
What I can help with
01
AI agents & automation
LLM workflows and agents that take repetitive work off your team, built with evaluation and human checkpoints so you can trust them. This is what I do day to day at Boon AI.
- Agents
- LLM workflows
- Document processing
02
Custom software development
Backends, APIs and internal tools built to be maintained after I leave. I’ve shipped systems for construction, transportation, beauty, fintech, fitness, travel and retail.
- APIs
- Admin tools
- Go · Ruby · Python · TS
03
Cloud & DevOps
Get off the single server: containers, CI/CD, monitoring and sensible costs on AWS or Google Cloud.
- AWS
- GCP
- Docker
- Kubernetes
04
IT strategy & fractional tech lead
A senior second opinion on architecture, vendors and hiring. I’ve led 8 backend engineers, reviewed architecture across ~10 client projects, and hired 5 engineers.
- Architecture
- Hiring
- Roadmaps
05
Workshops & training
Practical sessions on using AI in engineering work, or modern web development for new developers. Since 2022 I’ve taught 8 programming students and coached 9 in public speaking.
- AI for teams
- Web dev
- Public speaking
How we’d work
From first call to handover.
Intro call
30 minutes to understand the problem and whether I’m the right fit.
Written proposal
Scope, timeline and a fixed price within 3 working days.
Build with demos
Weekly demos and a shared channel. You see progress, not status reports.
Handover
Code, docs and a runbook your team owns, plus 2 weeks of support.
Engagements
Monthly
Fractional tech lead
A few days a month of senior judgement, without a full-time hire.
- Architecture & vendor decisions
- Code review & hiring help
- Roadmap with the founders
Custom quoteBook a free call about Fractional tech lead →
½–2 days
Workshop
Hands-on sessions for teams on AI in practice or modern web development.
- Tailored to your stack
- Exercises on your own code
- Slides & recordings
Custom quoteBook a free call about Workshop →
FAQ
Good questions.
Do you work alongside a full-time job?
Yes. My full-time role comes first, which is why I take one project at a time and agree on scope and hours up front. I can commit 20–40 hours a week, scheduled in advance.
Which time zones do you cover?
I’m in Medan, Indonesia (UTC+7). I work daily with US teams at Boon AI, so I’m used to async work and shifting my hours for overlap. Asia-Pacific overlaps all day.
Do you work with non-profits?
Yes. I’ve built for volunteer-run organisations and offer reduced rates for non-profit and community projects.
How do contracts work?
A direct contract and invoice by default, or through a freelance platform such as Upwork if that’s easier for you.
Who owns the code?
You do. All code, docs and accounts are transferred to you at handover.
Free · 30 minutes · online
Free 30-min consultation
No pitch, no obligation. Tell me the problem and leave with a concrete next step, even if it’s not me.
- Pick a time on Cal.com, no emails back and forth
- Tell me what you need in one line
- Get a Google Meet link and reminders automatically
Prefer email? [email protected]
Pick a time
Opens my Cal.com page in a new tab: choose a slot, add one line about what you need, and get a Google Meet link.
Choose a time on Cal.com ↗Or send a project brief
Tell me what you’re building.
I reply within two working days. If it’s not a fit, I’ll say so and point you to someone who is.
Thanks, got it.
I’ll reply within two working days. If it’s urgent, email [email protected].