Product design engineering for AI-driven startups.

I help founders choose what belongs in a first version, then design and build the interface with their teams. You can try the product as we go and decide what needs to change.

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Getting it built is only the start.

A first version settles things: what a button is called, what a blank screen says. I work on the product and the code together, so each decision is tested in something people can use.

  • Choose the job

    Start with one person and one task. I note what they need to finish, what the first version must explain, and what can wait. A feature stays only if it helps that job.

  • Cut to focus

    Every feature you keep is one more thing to support, so I cut early. What stays, I finish: every screen has its words and its states, and your team can test each of them.

  • Beyond the demo

    An empty screen, a failed request, a slow connection: each is part of the interface. I design them with the main path and build them, so you review them together.

  • Two readers

    Every control needs a name an agent can read. By agents I mean software that acts for a person: AI assistants, browser and coding agents, and the tools they call.

  • Decide in the code

    At Pantastic I designed front-end prototypes and coded them into production with the product and engineering teams. Now I settle details in the code, where you can review them.

  • Yours to keep

    From day one, the code and the decisions live in your accounts. Paid work passes to you under the Terms. Kwirita keeps its tools and general know-how. Third-party terms still apply.

Selected work

Plate XVIII. Soft light.

Drivepoint

Drivepoint makes financial planning software for consumer brands, with forecasts across sales channels and inventory plans for individual products. I redesigned its Excel add-in and helped build a later version of the web app through beta.

Role
Product design engineer
Years
2023–2026
Platform
Web, Excel
Scope
  • Interface design
  • Design systems
  • Front-end development
Plate II. Dapple.

Pantastic

Pantastic made commerce tools for independent brands. I led design direction for shoppers and merchants and built front-end prototypes with the product and engineering teams, taking them into production and settling interface details in code.

Role
Founding product designer
Years
2020–2023
Platform
Web
Scope
  • Product direction
  • Prototyping
  • Front-end development
  • Marketing design
Plate III. Glare.

Photo Butler

Photo Butler let people share photo streams from events, with AI choosing the best shots. I worked with the founders on the interface and on who might pay for the product. I also designed concepts for brand partnerships and pitches.

Role
Founding product designer
Years
2015–2019
Platform
iOS, web
Scope
  • Product direction
  • Interface design
Plate IV. Current.

Nanigans

By May 2014, Nanigans was moving from managed campaigns toward software advertisers ran themselves. I led the Ad Engine redesign for that change, focusing on onboarding, and designed and implemented a customer success site with the team.

Role
Product designer
Years
2013–2015
Platform
Web
Scope
  • Interface design
  • Website design
  • Front-end development
Plate V. Rain.

Lumatic

Lumatic City Maps showed walking and transit directions as photographs of the route. I redesigned its existing iOS app with engineering, set Android guidelines, and designed its marketing and developer websites.

Role
Founding product designer
Years
2012–2013
Platform
iOS, Android, web
Scope
  • Interface design
  • Website design
Plate VI. Tide.

Proudcloud

Proudcloud builds web and mobile software for startups and larger companies. I worked with founders and engineers as the studio’s lead product designer, and wrote front-end code to bring the designs into working pages.

Role
Lead product designer
Years
2010–2012
Platform
Web
Scope
  • Interface design
  • Front-end development
Plate VII. Field.

GoAbroad.com

GoAbroad.com helps people find programs to study, volunteer, teach, or intern abroad. I designed a dashboard for customers and tools for the sales and finance teams. I took requirements from in-house staff and built interactive prototypes with engineering.

Role
Product designer
Years
2008–2010
Platform
Web
Scope
  • Interface design
  • Prototyping
  • Website design
  • Usability testing

About

Kwirita designs and builds first versions for AI-driven startups. Lance Quejada leads the work from Manila.

How a month runs

I work alongside your team, one month at a time. Each month we pick what the product needs most, and I work on that.

In week one I write a short plan: what we build first, what we leave out. You get working software every week, starting in the first. Every Friday, Manila time, I send a written note on what shipped and what changed, plus the decisions I need. One 30-minute call a week for decisions, skipped when there is nothing to decide.

Product direction

What the first version does and what it leaves out. I write up who it is for, the job it does on day one, and what waits for version two, so your team can review it.

Interface design

Flows, screens, states, and the words on them, including the empty screen and the error.

Front-end engineering

The interface, built in your own codebase and reviewed like any other code. I design it and build it, using the least access it needs.

Agent readiness

Semantic structure, plus pages and docs a machine can read. On this page, “Agent view” shows the Markdown copy.

A system that lasts

Tokens and components, with a short note on why each decision was made, for your first design hire to read. The code and the notes live with you from day one.

Working prototypes

A front-end prototype you can click through, deployed so your team can try it on real screens. I code it myself, so the small details get settled in the code itself.

Prices and terms

Prices in US dollars. Monthly work follows an ordered task list.

One task at a time

$6,000

USD a month

One piece of work in progress at a time, from a list you keep in order.

Two tasks at a time

$10,000

USD a month

Two pieces of work in progress at once, for a team working on two fronts.

Other ways to start

A working session

$300

USD for an hour

An hour of advice, paid in advance. It counts toward your first month if you subscribe within 30 days.

A first-version review

$2,500

USD per review

I review your interface and front end, and how ready they are for agents. You get it in writing within a week, with a call to walk through it. It counts in full toward your first month if you subscribe within 30 days.

Terms

One month at a time, paid at the start of each month. Cancel any time. Work continues to the end of the month paid for, and nothing renews after it.

A task is one piece of work you can review on its own, ending in something usable: a designed flow, a merged pull request, or a deployed prototype. I split bigger requests into tasks and say how up front.

Tell me what you’re building.

Write early, while the names and screens can still change. A few lines are enough: what it does, who it’s for, how far along you are. I reply within two working days, Manila time.

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