Capability 03 of 05 · Designed, tested, built

Experience Design & Development

UX design and front-end development, tested with your users.

We run user research, design the interface and build the front end for product and CX teams. Each short cycle ends with users trying the work, so costly decisions rest on evidence.

Typical length
8–16 weeks
Scope
Research · design · front end
Built to
WCAG 2.2 AA
Prototype test · Round 2 of 2Illustrative

Illustrative usability test grid: six participants try four tasks in two rounds, and task success rises after the prototype changes.

Round 2Round 2, after three fixes: 21 of 24 completed unaided. The relabelled “Switch to Scale” passed for 5 of 6.

What it covers · 6 parts

Six practices, run by one team.

Researchers, designers, writers and front-end engineers work side by side, so findings reach design and code without a hand-off.

A person entering details into a form on a phone
01 / 06

User research & usability testing

Moderated and unmoderated sessions, diary studies and benchmark tests, run regularly through the project.

Continuous discovery
02 / 06

Information architecture & journeys

Navigation, taxonomy and complete journeys across channels, checked with tree tests and first-click studies.

IA · journeys
03 / 06

Interaction & interface design

Screens, states and motion designed in your design system, including empty, loading, error and offline states.

Every state
04 / 06

Content & UX writing

Labels, guidance, errors and confirmations written with the design and consistent in every language.

Microcopy · clarity
05 / 06

Prototyping

Clickable flows or coded prototypes on live data, with as much detail as each question needs.

Click · coded
06 / 06

Front-end build & design QA

Accessible, fast front-end code built from your design system components, with automated visual and accessibility tests and design QA before release.

React · WCAG 2.2 AA

How it works

Two-week cycles, from benchmark to release.

Each cycle tests one question with one prototype, and the results set the work for the next.

  1. Discover Wk 01–02

    We review research, analytics and support data, recruit participants and benchmark the journey. An agent groups transcripts into themes linked to quotes; a researcher approves them.

    • Research plan
    • Baseline benchmark
    • Participant panel

    Gate · Do we know the benchmark to beat?

  2. Design Wk 02–08

    Journeys, screens and content designed in your design system, tested with users every fortnight and checked for accessibility from the start.

    • Journey maps
    • Interface designs
    • Test findings

    Gate · Did the prototype pass its test round?

  3. Build Wk 06–14

    Engineers build the front end alongside design, adding components to your design system, with automated accessibility and visual checks on every merge.

    • Front-end code
    • New components
    • Automated checks

    Gate · Does the build meet the accessibility bar?

  4. Improve Wk 14–16

    We release behind a feature flag, repeat the benchmark and compare task success, time on task and error rate with the baseline.

    • Release
    • Benchmark comparison
    • Improvement backlog

    Gate · Did task success beat the benchmark?

Timings are typical and shorten when the evidence already exists.

Usability findings · what you will see

Every finding has a severity, an owner and a fix.

Each test round lists every problem seen, how many participants hit it and whether the fix held on retest.

Findings board · Checkout · round 2 of 2Illustrative

Critical 1

  • Delivery date hidden below the fold on small phones

    Task 2 · 4 of 6 missed it

    Owner: design · fixing

Serious 2

  • Promo code field read as required

    Task 3 · 3 of 6 paused

    Owner: content

  • Error on card number clears the whole form

    Task 4 · 2 of 6

    Owner: front end

Minor 1

  • “Continue” and “Next” used for the same action

    All tasks · noted

    Owner: content

Fixed and retested 1

  • Address lookup ignored flat numbers

    Round 1: 5 of 6 failed

    Round 2: 6 of 6 passed

Illustrative example of a findings board. Participant counts are per task in a six-person moderated round.

What you keep

Designs and front-end code, handed over with the test evidence.

What we make for you is yours once it is paid for. Tools we already had stay ours, and you get a free, permanent licence to use them.

A hand sketches screen layouts and the arrows between them on a sheet of paper
The flowsketched before it is built

/handover/03-experience/

Experience Design & Development

  • Research plan, findings & session clipsReport · clips
  • Journey maps & information architectureFigma
  • Interface designs with every stateFigma
  • UX copy & content guidelinesDoc · Figma
  • PrototypesFigma · coded
  • Front-end code & componentsYour repos · Storybook
  • Accessibility report & fixesWCAG 2.2 AA
  • Usability benchmarkSheet · Dashboard

/handover/README

In every handover

  • Decision record, with evidence linksDoc
  • Assumption tracker, final statesSheet
  • Research consent & retention logSheet
  • Walkthrough session, recordedVideo

What changes

Three outcomes, each with a number you can check.

We run the same tasks before and after release and compare the results. We agree the baseline, target and measuring method in week one.

  1. Outcome 01

    Decisions tested with users

    Every significant change is watched with users before release, and the recording is kept to settle later debates.

  2. Outcome 02

    Usable by more people

    Keyboard, screen-reader, contrast and target-size checks run with the automated tests, so any accessibility drop shows up at once.

  3. Outcome 03

    Built as designed

    Designers and front-end engineers work in the same cycle, so what goes live matches the approved design.

Outcome review · Your companyIllustrative
  • 01 Task success, key journeysSame tasks, unmoderated, benchmark vs release
    89%from 61%target 85%
  • 02 WCAG 2.2 AA criteria metAutomated checks plus manual keyboard and screen-reader pass
    100%from 68%target 100%
  • 03 Screens matching the approved designDesign QA against the Figma source
    94%from 55%target 90%
Scale 0–100 on every row; row numbers match the outcomes. Illustrative figures, not client results.

Tools we use

From Figma to production, with one set of components.

The design, prototyping, front-end and testing tools we use most, with code kept in your repositories. We work with these tools; no partnership is implied.

  • Figma
  • Storybook
  • React
  • Next.js
  • TypeScript
  • Tailwind CSS
  • Cypress
  • Lighthouse
  • PostHog
  • Mixpanel
  • Miro
  • Notion
  • Playwright

Frameworks we build to

Accessibility, speed, quality and privacy, checked while we build.

We build and test every journey to these frameworks. None is a certification we hold.

  • WCAG 2.2 AAWeb Content Accessibility Guidelines

    Perceivable, operable, understandable and robust content, including 2.2 criteria such as focus not obscured, target size and accessible authentication.

    How we apply itContrast, focus order and target size checked in the design file, then keyboard and screen-reader tests on every key journey before sign-off.

  • Core Web VitalsLoading, interactivity and visual stability

    Good at the 75th percentile of page loads: LCP ≤ 2.5 s, INP ≤ 200 ms, CLS ≤ 0.1.

    How we apply itLCP, INP and CLS budgets set per template at design, then checked at the 75th percentile of visits after release.

  • ISO 9001:2015Quality management systems

    Requirements for a quality management system built on process control, risk-based thinking and continual improvement.

    How we apply itEvery stage ends at a written gate with an owner, and nothing is signed off before design QA against the approved design.

  • GDPRGeneral Data Protection Regulation (EU) 2016/679

    Lawful basis, data-subject rights, data protection by design and by default, breach notification and DPIAs for high-risk processing.

    How we apply itResearch participants give specific, recorded consent, and recordings and notes are deleted on a set retention date.

  • DPDP Act 2023Digital Personal Data Protection Act, 2023

    Notice and consent, duties of data fiduciaries, rights of data principals, breach intimation and added duties for significant data fiduciaries, with the DPDP Rules.

    How we apply itConsent notices for participants and users in India, with their data requests answered from the research log.

Services & packages

Research, design and front end, bought alone or together.

Commission a single research round, the design of a whole product or a team that designs and builds your front end.

Categories
05
Services
18
Packages
05
Not sure what you need? Describe the problem

How to buy

  1. 01Pick services. Enquire about one, or add several to a brief.
  2. 02Choose a package. A sprint, a fixed project or an ongoing team.
  3. 03Send the brief. We reply within one working day.

Browse by category

Timelines are typical. Every quote follows a written scope.

01Research

4 services
Typical timeline: Ongoing · monthly

User research programme

Ongoing user research: a recruited panel, regular sessions and a searchable repository of findings for your team.

What’s included

  • Participant panel and recruitment
  • Consent, incentives and data retention handled
  • Fortnightly or monthly sessions
  • Searchable repository with tagged findings
  • Continuous discovery
  • Panel
  • Repository

Best forProduct teams that want user evidence every sprint.

Typical timeline: 2–3 weeks

Usability testing round

One round of moderated or unmoderated sessions on one journey, ending in a prioritised list of fixes.

What’s included

  • Test plan and task scripts
  • Recruitment of five to eight participants
  • Moderated or unmoderated sessions
  • Findings, clips and a prioritised fix list
  • One round
  • Moderated · unmoderated

Best forTeams about to build something no user has tried yet.

Typical timeline: 3–5 weeks

Usability benchmark

A repeatable measure of how usable the product is today, so you can judge the next release against a number.

What’s included

  • Task set defined with your team
  • Quantitative study with a larger sample
  • Task success, time on task and error rate
  • Standard usability score such as SUS or UMUX-Lite
  • Quantitative
  • Baseline

Best forTeams starting a redesign that will have to prove it worked.

Typical timeline: 3–5 weeks

Accessibility user testing

Sessions with disabled participants using their own assistive technology, to find barriers that a guidelines audit can miss.

What’s included

  • Recruitment across assistive technologies
  • Sessions with screen reader, magnifier and switch users
  • Barriers mapped to journeys and components
  • Fixes written into the component backlog
  • Assistive tech
  • Lived experience

Best forOrganisations that pass automated checks and still get complaints.

02Design

5 services
Typical timeline: 8–16 weeks

Complete UX & UI design

The full design of a product or major journey: structure, screens, content and every state, tested with users as we go.

What’s included

  • Information architecture and journeys
  • Interfaces with empty, loading, error and offline states
  • UX writing for labels, guidance and errors
  • Testing rounds through the project
  • Handover with acceptance criteria
  • UX · UI
  • Every state
  • Handover-ready

Best forTeams building a new product or rebuilding a failing journey.

Typical timeline: 10–20 weeks

Product or app redesign

A redesign released in stages behind feature flags, so improvements arrive early without the risk of replacing everything at once.

What’s included

  • Baseline usability benchmark
  • Journey-by-journey redesign plan
  • Designs and prototypes per stage
  • Rollout and migration plan
  • Benchmark repeated after release
  • Staged
  • Benchmarked
  • Playwright

Best forProducts that have grown well past their original design.

Typical timeline: 4–8 weeks

Information architecture & navigation

The structure of the product: what things are called, where they live and how people find them, tested before screens are drawn.

What’s included

  • Content and feature inventory
  • Card sorting and tree testing
  • Navigation model and taxonomy
  • First-click validation of the new structure
  • IA
  • Tree tested

Best forProducts or sites where people use search because navigation fails.

Typical timeline: 3–6 weeks

UX writing & content design

Interface copy written alongside the design: labels, guidance, empty states, errors and confirmations people understand first time.

What’s included

  • Content audit of the key journeys
  • Rewritten interface copy in the designs
  • Error and edge-case message set
  • Content guidelines and terminology list
  • Microcopy
  • Guidelines

Best forProducts where support answers the same question every week.

Typical timeline: 3–6 weeks

Interface motion design

Transitions, loading and feedback that show people what has changed, with an equally usable reduced-motion version.

What’s included

  • Motion principles and timing scale
  • Key transitions specified for engineering
  • Reduced-motion behaviour defined
  • Reference implementations in code
  • Motion
  • Reduced motion

Best forProducts where state changes leave people unsure what happened.

03Prototypes

3 services
Typical timeline: 1–3 weeks

Clickable prototype

A Figma prototype detailed enough to test a flow with customers or show stakeholders what is being proposed.

What’s included

  • Key flows linked from start to finish
  • Realistic content on every screen
  • Variants for the options under discussion
  • Ready for a testing round
  • Figma
  • Fast

Best forTeams that need a working flow to show people.

Typical timeline: 2–5 weeks

Coded prototype

A prototype in code for questions a Figma file cannot answer: speed, data volume, live content and edge cases.

What’s included

  • Front-end prototype on your data or realistic samples
  • Interactions that need working behaviour
  • Deployed for stakeholder and user access
  • Findings and a reuse or discard recommendation
  • Live data
  • Deployed

Best forData-heavy products where the open question is behaviour under heavy load.

Typical timeline: 2–4 weeks

Concept testing round

Two or three concepts tested side by side with customers, so the choice rests on their reactions.

What’s included

  • Concepts built to the same level of detail
  • Test design that avoids leading participants
  • Sessions with your target customers
  • Recommendation with the evidence for it
  • Comparative
  • Evidence

Best forTeams stuck between two directions.

04Front end

4 services
Typical timeline: 6–16 weeks

Front-end build

The approved design built as accessible, fast front-end code in your repositories, with automated checks that keep it that way.

What’s included

  • Component-based front end in React and TypeScript
  • Automated accessibility and visual tests
  • Core Web Vitals budgets enforced on merge
  • Design QA pass before each release
  • React
  • WCAG 2.2 AA
  • Core Web Vitals
  • Playwright

Best forTeams with approved designs and too few front-end engineers to build them.

Typical timeline: 1–3 weeks

Design QA & polish pass

A check of what your engineers built against the designs: spacing, states, focus, motion and the details that make a product feel finished.

What’s included

  • Screen-by-screen comparison against the designs
  • Interaction, focus and state review
  • Ticketed findings with severity
  • Pairing sessions with your engineers
  • Polish
  • Ticketed

Best forTeams whose releases look almost, but not quite, like the designs.

Typical timeline: 4–10 weeks

Accessibility remediation

We fix the failures from your accessibility audit in your code, at component level where possible, then retest.

What’s included

  • Fixes prioritised by how much they block people
  • Fixes made in shared components first
  • Automated checks added to the pipeline
  • Retest and an updated conformance record
  • WCAG 2.2 AA
  • In your code
  • Playwright

Best forOrganisations holding an audit report and no capacity to act on it.

Typical timeline: 2–6 weeks

Front-end performance pass

We make the interface faster where users notice: what loads first, what delays a tap and what moves while the page loads.

What’s included

  • Field and lab measurement
  • Script, image and font optimisation
  • Interaction and layout-shift fixes
  • Speed budgets checked on every merge
  • Core Web Vitals
  • 75th percentile
  • Playwright

Best forProducts that test well on a laptop and badly on a phone.

05Ongoing

2 services
Typical timeline: Ongoing · monthly

Embedded design & front-end squad

Designers, researchers and front-end engineers working inside your team, on your backlog, at your cadence.

What’s included

  • Named specialists matched to your roadmap
  • Your tools, meetings and repositories
  • Scale up or down each month
  • Knowledge transfer from week one
  • Squad
  • Time & materials

Best forProduct teams with a clear roadmap and too few senior people.

Typical timeline: Ongoing · monthly

Continuous discovery retainer

A researcher and a designer running regular user sessions, experiments and readouts alongside your delivery team.

What’s included

  • Regular sessions with your users
  • Findings into the backlog each sprint
  • Experiment design and readouts
  • Monthly summary for leadership
  • Retainer
  • Every sprint

Best forDelivery teams releasing faster than they learn from users.

Your brief

Tick “Add to brief” on any service, choose a package, then continue. Or enquire about one service directly.

How we work with you

Ways to engage, from a question to an RFQ.

Ask a quick question, send a project brief or issue a formal RFQ. The lead for the work reads each one in full, and any services already in your brief go with it.

Or book a thirty-minute call

What are you sending?

  1. 01

    About 2 minutes4 required answers

    For a first conversation, a press request or anything that does not need a scope yet.

    You get A reply from a named lead

  2. 02Recommended

    About 8 minutes5 short steps

    Goals, audiences, a budget band and timing, so our first reply can outline the work.

    You get Options and a first scope after one call

  3. 03

    About 15 minutesYour documents attached

    Your documents, deadlines and the procurement and security rules the work must meet.

    You get Receipt confirmed and a named bid lead

How it is priced

Each package shows its pricing model. Work starts once a written scope and quote are agreed.

  • Typical length
    1–3 weeks
    Pricing
    Fixed fee
  • Typical length
    4–12 weeks
    Pricing
    Fixed price
  • Typical length
    3–9 months
    Pricing
    Fixed price per milestone
  • Typical length
    Ongoing · 6-month minimum
    Pricing
    Monthly fee
  • Typical length
    Ongoing · 3-month minimum
    Pricing
    Time & materials
Compare what each package includes
What each package includes and who it suits
PackageEvery engagement includesBest for
SprintA short, fixed-scope engagement that answers one defined question.
  • Scope and outcome agreed before day one
  • A senior lead plus the specialists needed
  • A working review every week
  • A decision-ready answer or prototype
Discovery, a diagnostic, a prototype or a decision you need to make soon
ProjectA defined scope, delivered for a fixed price.
  • Statement of work with deliverables and acceptance criteria
  • A named project lead and a fixed team
  • A shared plan with dated checkpoints
  • Source files, yours once paid for
Work you can describe up front: an identity, a platform or a set of tools
MilestoneA larger build in phases you approve and pay for one at a time.
  • Phases with their own scope, output and sign-off
  • A go or no-go review at every gate
  • Re-planning between phases as you learn
  • Payment tied to accepted milestones
Programmes too large for one contract, where you want control at each step
RetainerReserved monthly capacity to run, improve and extend what we built.
  • A reserved block of team time every month
  • Agreed response times for requests and fixes
  • A monthly review and a rolling backlog
  • Planned improvements as well as upkeep
Live brands and products that need a steady team without hiring one
SquadA dedicated team that works inside your stack and sprint schedule.
  • Named specialists matched to your roadmap
  • Works in your tools, meetings and backlog
  • Scale the team up or down each month
  • Knowledge transfer built in from week one
Teams with a clear roadmap that need more senior people quickly

Questions

Asked before the first test round.

Anything else goes to the people who would do the work.

Ask a question
Q01How many users do you need to test with?

Five to eight people per round, testing one journey. That finds most usability problems, so we run several small rounds. Benchmarks and preference tests need larger samples, and we say which we are running.

Q02Do you design in our design system or make a new one?

Yours, if you have one; we add the components it is missing. If not, we hand over the components this work needs as the start of a design system, which our System Design capability can complete.

Q03Do you write front-end code or hand over designs?

Either. A design handover includes screens, tokens, every state and acceptance criteria. When we build, you get accessible front-end code in your repositories, reviewed by your engineers.

Q04How do you handle accessibility?

We build to WCAG 2.2 AA and check it at every stage: in design, on every merge and by hand before release. Where it matters, we also test with disabled participants.

Q05How do you know the new experience is better?

After release we repeat the baseline benchmark: task success, time on task, error rate and a usability score such as SUS or UMUX-Lite. We read the results alongside your product analytics.

Tell us what you need built.

You will speak to a lead who would run the work, and get a straight answer on fit.

Book a call

Three ways to start

Every engagement starts with a written scope and a quote agreed before work begins.

Choose one of the three ways above