Custom Internal Tools, Singapore

You describe
the problem.
I build the fix.

I build custom automation tools for founders and freelancers. Tell me what is eating your time, and I will have a working version in your inbox within 24 hours.

Describe Your Problem See what I have built
24h
Every version deliveredFirst prototype and every revision, in 24 hours
9
Tools in productionAcross coaching, logistics, ops and content
100%
Money-back guaranteeNot happy? You pay nothing, no questions asked
2
Things I need from youThe problem and the context. That is it
How This Works

Two inputs.
One working tool.

Most automation consultants charge thousands before writing a single line of code. You sit through discovery calls, sign contracts, wait weeks, and get a prototype that barely fits your workflow.

I do the opposite. Tell me the problem and the context and I build Version 1 in 24 hours. You test it in your real workflow. I revise it, also within 24 hours. We keep going until it is exactly right.

I am an ex-app developer based in Singapore, working remotely with founders worldwide. Every tool I ship is yours to keep entirely, no lock-in, no platform dependency.

24h
Per version, guaranteedFirst build and every revision delivered the same day
0
Lock-in or commitmentWalk away at any point, no penalties
100%
Money-back guaranteeIf you are not satisfied, you owe nothing
The Process

From message
to live tool in days.

01
You describe the friction

Tell me the workflow and where you lose time. No prep needed. A voice note or a quick email is enough to start.

02
I build Version 1

Within 24 hours I will send you a working first version. Not a mockup. An actual tool you can open and use in your real workflow.

03
You test and break it

Use it on a real task. Find everything that is wrong or missing. Your feedback shapes the next version.

04
Revisions until perfect

I turn around every change within 24 hours. Revisions are unlimited. We iterate until it fits your workflow without friction.

Pricing

Flat rates.
No surprises.

Every build is covered by a 100% money-back guarantee. If you are not satisfied with the final result, you pay nothing.

Simple
$150 - 250
Single-function tool
A focused tool that does one thing well. No external integrations required.
  • Form to output converter
  • Content or idea generator
  • Document or slide formatter
  • Basic tracker or planner
Medium
$300 - 500
Dashboard or multi-feature
A more complete internal tool with multiple views, states, or user-facing features.
  • Client or prospect dashboard
  • Booking and scheduling system
  • Progress or session tracker
  • Role or workflow manager
Complex
$600 - 1000
Automation and integrations
Tools that connect to external services, automate multi-step workflows, or serve multiple users.
  • API or CMS integrations
  • Automated publishing pipelines
  • Multi-user or team tools
  • Bot or scraper workflows
✓
100% money-back guarantee on every tier. If the finished tool does not do what we agreed, or you are simply not satisfied, you pay nothing. No forms, no disputes, no questions asked.
Selected Work

Things I have
already shipped.

9 tools in production
NourishMe Session Planner
Coaching Tool
Session Planner
Ananya Bhattacharya, Nourish Me
Custom session planner for life coaching across 12 and 24-week programs. Handles Health, Wealth, Relationships and Leadership domains. Replaced fully manual per-client customisation.
Content Brief Generator
Content
Content Brief Generator
Precious Augustine
Turns a single idea into a full content brief with headlines, SEO keywords, and a structured outline. Built for a graphic designer and blogger under daily deadline pressure.
Student Progress Dashboard
Client Portal
Student Progress Dashboard
Joy Venner, Own Your English
Tracks CEFR levels, skill gains, attendance and homework completion across multiple courses. Built alongside a bilingual website with booking integration.
PDF to Slides Converter
Document Automation
Booking and Scheduling Dashboard
Scheduling
Prospect Tracking Dashboard
CRM / Pipeline
Toastmasters Role Filler
Team Operations
AI Blog Automation Pipeline
Content Automation
Cold Outreach Tracker
Outreach Tracking
What Clients Say

In their
own words.

Bobby is the kind of person who never says no to an obstacle. When we hit a roadblock, he was always the first to step up and tackle it head-on with the most positive attitude. With his background in building custom workflow tools and automation, he consistently found practical, efficient solutions. He is super helpful, always ready to make things work, and genuinely invested in the success of the project.
Zhi Min Lim
Founder, Prime Aces Limousine (PAL)
Corporate Ground Transportation, Southeast Asia
Verified on LinkedIn
Bobby has gone above and beyond my expectations. He delivered results at high speed, always within 24 hours, and was extremely focused on the job. He has a flexible and open attitude and ensures the tool is modified until it best meets the client needs. I would highly recommend Bobby to anyone needing help with a tool for repetitive work.
Joy Venner
Helping companies and professionals improve performance
in international environments
Verified on LinkedIn
About
Bobby Tjia LinkedIn Profile

Bobby Tjia,
Singapore.

I am an ex-app developer turned internal tools builder. I work with founders and freelancers who have a specific, repeatable workflow eating their time, and I build the tool that removes it.

My background is in software development, which means I build things that actually work in production, not polished demos that fall apart on day two. Every version I ship is delivered within 24 hours, and I iterate until the tool fits your workflow exactly.

I am based in Singapore and work remotely with clients across Southeast Asia and beyond. If you have a problem that happens more than once a week, there is a good chance I can automate it.

Get Started

Tell me what is
eating your time.

Describe the workflow in as much or as little detail as you like. I reply within 24 hours and, if it is a fit, start building the same day. No call needed to get started.

Send Me a Description
Reach me directly
bobby.tjia [at] optimechtools.com

I respond within 24 hours. Every build is covered by a 100% money-back guarantee. If you are not satisfied, you pay nothing.