Services · Product Engineering

Product Design (UI/UX)Design products people understand in the first minute.

Product designers who research your users, prototype in days and hand developers a system, not screenshots. Design and engineering share sprints, so what is designed is what ships.

  • User-researched
  • Prototype in 2–3 weeks
  • Design system included

Free 30-minute call with a senior product designer. Reply within one business day. Based in Jaipur, working with businesses across India.

1 weekfor a fixed-price UX audit
2–3 weeksfrom brief to clickable prototype
Weeklydesign reviews with your team
1design system your developers reuse
Quick answer

What is product design (UI/UX)?

Product design is the work of deciding how a digital product should look, behave and feel, based on how real users work. Stack18's designers cover research, user flows, interface design, prototypes and design systems for web, mobile and SaaS products, working in the same sprints as the engineers who build them.

Last reviewed 9 November 2026 by the Stack18 delivery team in Jaipur. Security and AI governance · Pricing · About Stack18

Product Design (UI/UX) at a glance
What it coversUX research & strategy; UX audit; Interface & interaction design; Prototyping & user testing; Design systems; Accessibility & localisation.
Typical first stepUX Audit: 1 week; fixed price.
Next stepDesign Sprint: 2–3 weeks; fixed price.
Long-term optionEmbedded Design Team: ongoing; monthly retainer.
Measured byTask completion rate; Conversion rate; Time to first value; Support tickets. Each against an agreed baseline.
GovernanceHuman approval at 5 governance gates before anything reaches production. NDA available on request.
Delivery teamBased in Jaipur, India. A senior specialist replies within one business day.
Is this you?

You need Product Design (UI/UX) when…

Tap the ones that apply to you.

Most teams we work with recognise two or three of these.

Talk to an expert about this
What we deliver

Product Design (UI/UX), end to end.

Each capability is delivered by the same team on the Agentic SDLC, with your approval at every critical step.

UX research & strategy

Find out how users really work, before designing for how you assume they do.

  • User interviews and task analysis
  • Journey maps and a pain-point register
  • Prioritised problems to solve first

UX audit

An expert review of an existing product for usability, accessibility and conversion.

  • Heuristic review of key flows
  • Accessibility check against WCAG
  • Ranked fixes with effort estimates

Interface & interaction design

Screens and flows that stay clear on a phone, a laptop and a shop-floor tablet.

  • Wireframes to high-fidelity screens
  • Responsive layouts and every state
  • Micro-interactions and error handling

Prototyping & user testing

Test with real users in days, while changes are still cheap.

  • Clickable prototypes
  • Moderated and remote usability tests
  • Findings with recommended changes

Design systems

One library of components and rules so every screen and every team stays consistent.

  • Tokens, components and patterns
  • Documentation developers actually use
  • Light and dark themes where needed

Accessibility & localisation

Products that work for more people, in more languages and on slower devices.

  • WCAG-aligned design
  • Hindi and regional-language layouts
  • Low-bandwidth, low-end devices
How we work

A typical product design engagement, week by week.

Senior people lead every phase. Specialised AI agents on the Agentic SDLC handle the repetitive work, and nothing ships without your approval.

01Week 1

Understand

Stakeholder and user interviews, analytics review, competitor teardown.

You getResearch summary, problem list
AgentsCompass
02Weeks 1–2

Define

User flows, information architecture and the scope of the first release.

You getFlows, scope, success measures
AgentsDraftFrame
03Weeks 2–3

Design & prototype

Wireframes to high-fidelity screens, linked into a clickable prototype.

You getPrototype, design tokens
AgentsFrame
04Weeks 3–4

Test & hand off

Usability tests, fixes and a design system your developers build from.

You getTested designs, system, specs
AgentsWatchLedger
Ways to engage

Start small. Scale when it works.

Every engagement begins with a short, fixed-price step so you can judge the fit before committing further.

Start here

UX Audit

Teams with a live product that is not converting.

Duration
1 week
Pricing
Fixed price
  • Review of 3–5 key flows
  • Ranked fix list
  • Walkthrough call
Start with UX Audit
Most common

Design Sprint

Founders and teams with an idea or redesign to validate.

Duration
2–3 weeks
Pricing
Fixed price
  • Research and user flows
  • Clickable prototype
  • User test findings
Discuss Design Sprint
Long-term

Embedded Design Team

Products that ship every sprint.

Duration
Ongoing
Pricing
Monthly retainer
  • Dedicated product designer
  • Design system upkeep
  • Design reviews in every sprint
Discuss Embedded Design Team
Free for qualified businesses

Free UX teardown

Share one key flow of your product, such as signup, checkout or onboarding. A Stack18 product designer reviews it and sends a written summary of the biggest usability problems.

  • Top usability issues
  • Quick wins you can ship this week
  • Suggested next steps, no obligation
Request your free UX teardown
Outcomes we measure

We agree targets before we start.

Every engagement has a baseline and a target on the measures that matter to you, reported at every read-out.

Task completion ratein usability tests
Conversion rateon key flows
Time to first valuefor new users
Support ticketsabout usability
Accessibility scoreagainst WCAG checks
Design-to-build reworkhours per release
Typical engagements

Where Product Design (UI/UX) makes the biggest difference.

Typical engagement

Early-stage SaaS startup

Challenge
Many signups, few users completing setup.
What we do
UX audit, a redesigned onboarding flow and a tested prototype before any code changed.

3 weeks

Typical engagement

Retail chain, legacy app

Challenge
Store staff avoid the billing app because it takes too many taps.
What we do
Research in stores, simplified flows and a shared component library.

6 weeks

Typical engagement

B2B services firm

Challenge
A customer portal that customers never log in to.
What we do
Journey mapping, a new dashboard and an accessible design system for web and mobile.

5 weeks

FAQ

Product Design (UI/UX) questions.

Ask us anything
Do you design and build, or only design?

Both. Designers work in the same sprints as engineers, so designs are checked for feasibility early. If you already have a development team, we can deliver designs and a design system they build from.

Will you use our brand guidelines?

Yes. We start from your brand and extend it into a usable component system. If you do not have guidelines yet, we can define the essentials.

Do you test designs with real users?

Yes. Prototypes are tested with a small group of real or representative users before development starts, and the findings feed the next revision.

What do we get at the end?

Source design files, a clickable prototype, a design system with documented components, and specifications that developers can build from.

Can you redesign only part of our product?

Yes. Many engagements start with the one or two flows that matter most, such as onboarding or checkout, and expand once those show improvement.

Do you provide product design and UI/UX services in Jaipur and across India?

Yes. Stack18 is headquartered in Jaipur, Rajasthan, and delivers product design and UI/UX services for businesses across India. You get a free 30-minute call, a fixed-price first step and working software every week, so the engagement works the same whether you are in Jaipur or elsewhere.

Start a conversation

Let's scope your Product Design (UI/UX) project.

Tell us where you are and where you want to be. A senior product designer will reply within one business day with next steps.

  • Free 30-minute consultation
  • Indicative estimate after the call
  • NDA available on request

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