Product Design & Software QA Studio in the USA
One Team for UI/UX Design & Software QA Users Love and Trust
End-to-end product design paired with full software QA. From discovery and user research to high-fidelity UI, design systems, and prototyping, then automated E2E, load, and security testing, Stallyons designs experiences users finish onboarding for and ships them bug-free, accessible, and ready to scale.
Design & QA Guarantee
- User-Tested Design
- WCAG 2.2 AA Accessible
- Ships Bug-Free
Triple Design & QA Guarantee:
- User-Tested Design
- WCAG 2.2 AA Accessible
- Ships Bug-Free
Products Designed
0
+
Client Rating
0
★
Avg. Conversion Lift
0
%
Our Design & QA Suite
User Research
360° Discovery
Wireframing
Flows Mapped
High-Fidelity UI
400+ Designs
Design Systems
Scalable
Prototyping
Interactive
Usability Testing
User-Validated
Accessibility
WCAG 2.2 AA
QA Automation
Automated E2E
Load & Security
Hardened
Avg. Project NPS
+72
On-Time Delivery
96%
↑ 4%
Repeat Clients
81%
Trusted By Startups
The Value of Design That Users Finish and QA That Ships Clean
Stallyons is a senior product design and software QA partner serving founders, product leaders, and enterprise teams across 50+ industries. Great design is not just how a product looks; it is how it works, and whether it holds up once real users and real traffic hit it. We own both halves: the experience users love and the quality that keeps it running.
Most teams hire a designer, a freelance developer, and a separate tester and get three different definitions of "done." Designs drift from the build, bugs slip past a rushed release, and accessibility becomes an afterthought. We have watched it happen for fifteen years. One team owning design and QA end to end removes the hand-off gaps where quality quietly leaks away.
Our Full Design & QA Range
Discovery & User Research : Stakeholder workshops, user interviews, surveys, competitive audits, analytics review, personas, and jobs-to-be-done, so every design decision is grounded in evidence rather than opinion.
Experience & Interface Design : Information architecture, journey mapping, user flows, wireframes, high-fidelity UI, interaction and motion design, and conversion-focused layouts that get users to the finish line.
Design Systems & Prototyping : Reusable component libraries, design tokens, documentation, and interactive Figma prototypes that keep design and engineering in perfect sync and speed up every future release.
Accessibility & Usability : WCAG 2.2 AA audits and remediation, ARIA and semantic structure, moderated and unmoderated usability testing, and A/B validation, so your product works for every user and every device.
Software QA & Test Automation : Automated end-to-end suites, functional and regression testing, cross-browser and cross-device coverage, and CI/CD-integrated pipelines that catch defects before your users ever do.
Performance, Load & Security Testing : Load and soak testing, performance profiling, penetration and security testing, and API/contract testing, so your product stays fast, stable, and safe under real-world pressure.
Why Stallyons Design & QA Beats a Piecemeal Team
- Single Source of Truth : Design, prototyping, accessibility, and QA under one roof, one scope, one timeline, one shared design system, one shared test plan. No integration tax and no "that's the designer's job / that's the tester's job" hand-offs.
- Design Informed by QA : Our designers know exactly how flows behave under edge cases, and our QA engineers test against the real design intent. Defects and usability issues get caught earlier because the same team sees the whole picture.
- Senior-Only Teams : No outsourced juniors. The designer who researches your users ships the UI. The QA engineer who scopes the test plan writes the automation. Quality compounds when accountability stays inside one team.
- Outcome Pricing : We price on outcomes such as activation lifts, conversion targets, accessibility compliance, and defect-escape rates, not on chair-time. If we do not hit the numbers we set together, we keep working until we do.
- Long-Term Partnership : 81% of our clients come back for a second engagement. We hand you a documented design system and a maintained test suite you can give any team without inheriting a black box.
- Accessibility & Compliance Built In : WCAG 2.2 AA, ADA, and Section 508-aligned design and testing, with documentation that survives an audit on day one, not bolted on after a legal complaint.
How to Start Your Design & QA Project
Every engagement starts with a free 45-minute strategy session. No slide deck and no sales script. You bring the problem, whether it is a product users abandon, a redesign, a design system, or a release you cannot trust, and you walk away with a clear path, a recommended approach, and an honest view of scope.
We are selective about new engagements and cap our active client count to maintain the senior-designer-and-QA-to-project ratio that makes our work dependable. If we take your project, it gets a senior team from research through the final regression pass.
Why Clients Choose Us
400+
Products Designed
68%
Avg. Conversion Lift
100%
Dev Handoff Success
4.9/5
Client Rating
Ready to design a product users finish and ship it bug-free with one senior team?
10 Design & QA Capabilities
Everything Your Product Needs to Delight and Ship
End-to-end product design and full software QA, organized into ten capabilities. Pick one, or let us own the whole journey from first user interview to the final regression pass.
User Research & Discovery
Interviews, surveys, analytics, personas
4 METHODS
Journey Mapping & IA
Journeys, user flows, sitemaps
3 ARTIFACTS
Wireframing & Prototyping
Low to high-fidelity, interactive
2 FIDELITIES
High-Fidelity UI Design
Visual design, brand, layouts
5 CAPABILITIES
Design Systems
Tokens, components, documentation
SCALABLE
Interaction & Motion
Micro-interactions, transitions
DELIGHT
Usability Testing
Moderated, unmoderated, A/B testing
VALIDATED
Accessibility (WCAG 2.2 AA)
Audits, remediation, ARIA, 508
COMPLIANT
QA & Test Automation
E2E, functional, regression, CI/CD
AUTOMATED
Load & Security Testing
Performance, pen-test, soak, API
HARDENED
Not sure which capabilities your product needs? Let's map it together.
Common Problems
Is Bad Design or a Buggy Release Costing You Customers?
These pain points quietly cost you activations, conversions, and trust, and most stay invisible until you measure them.
Users Abandon Onboarding
01
Confusing flows, unclear next steps, and cluttered screens make users quit before they reach value. If people never finish onboarding, no feature you ship will save the funnel.
Low Conversions from Weak UX
02
Traffic without conversions is wasted spend. Poor hierarchy, weak CTAs, and high-friction forms let visitors leave without acting, no matter how much you spend to get them there.
Inconsistent UI, No Design System
03
Every screen looks like a different product. Without a design system, teams reinvent components, ship visual drift, and slow down every release with avoidable rework.
Inaccessible to Real Users
04
Missing contrast, keyboard traps, and no ARIA lock out users who rely on assistive tech, and expose you to ADA and WCAG legal risk. Accessibility is not optional, it is table stakes.
Bugs & Broken Releases
05
No automated QA means regressions slip into production, users hit broken flows, and your team firefights instead of building. Every escaped defect erodes trust you cannot easily rebuild.
Slow, Crashing, or Insecure
06
The product works in the demo, then buckles under real traffic or gets breached. Without load and security testing, nobody scoped for the pressure your launch will actually create.
Recognize any of these? Let's fix the experience and the quality together.
Our Design & QA Services
6 Design & QA Services Built to Compound
Each service is a senior team. Mix, match, or run them in parallel. Every line is built to make the next one faster and stronger.
UX Research & Discovery
01
User interviews, surveys, analytics, competitive audits, personas, journey maps, and information architecture, so every design decision is grounded in real evidence, not guesswork.
Wireframing & Prototyping
02
Low-fidelity wireframes through interactive, clickable prototypes in Figma, so you can validate flows and test with real users before a single line of code is written.
High-Fidelity UI & Design Systems
03
Pixel-perfect, on-brand interfaces plus reusable component libraries, design tokens, and documentation that keep design and engineering in sync and speed up every future release.
Interaction, Motion & Accessibility
04
Micro-interactions, transitions, and motion that guide users, paired with WCAG 2.2 AA accessibility, ARIA, and usability testing so the experience works for everyone.
Software QA & Test Automation
05
Automated end-to-end suites, functional and regression testing, cross-browser and cross-device coverage, all wired into your CI/CD pipeline so defects get caught before users do.
Load, Security & Regression Testing
06
Performance and load testing, penetration and security testing, API and contract testing, and full regression passes so your product stays fast, safe, and stable under real pressure.
Need to combine several of these into one engagement? Let's scope it together.
Why Partner with Us?
The Business Results You Get From Design + QA Under One Roof
What you get when research, design, accessibility, and quality assurance are owned by one senior team, not scattered across vendors.
Users Finish Onboarding
01
Research-driven flows and friction-free UI get more users to their first win, so activation and retention climb instead of leaking at every step.
Higher Conversions
02
Conversion-focused layouts, clear hierarchy, and tested CTAs turn more of your existing traffic into signups and customers, without spending more to acquire them.
One Design + QA Team
No hand-off gaps between designers, developers, and testers. One contract, one quality bar, one team accountable from first interview to the final regression pass.
We price on outcomes such as launches, conversion lifts, and accuracy targets. If we miss, we keep working until we hit. No chair-time billing.
Accessible & Compliant
WCAG 2.2 AA, ADA, and Section 508-aligned design and testing, with documentation ready for auditor review, so you reach every user and avoid legal exposure.
HIPAA, SOC 2, GDPR, BIPA, and CCPA, PCI-DSS-aligned engineering practices and documentation, ready for auditor review on day one.
Ships Bug-Free
Automated E2E, regression, load, and security testing catch defects before release, so your team ships with confidence instead of firefighting in production.
Architecture scoped for scale from day one. When traffic multiplies, your product holds instead of cracking, so you are not rebuilding six months after launch.
81% Come Back
Most clients return for their next product, because a documented design system and a maintained test suite keep paying off long after launch.
Most clients come back for a second engagement, because the outcomes hold up after launch.
Ready for design that converts and QA you can trust?
Our Process
From Discovery to a Shipped, Tested Product in 6 Proven Steps
A unified methodology that pairs user-centered design with rigorous QA, catching usability and quality issues early.
Discovery
User research, goals, and constraints
Define
Journey maps, IA, and user flows
Design
Wireframes, UI, and design system
Prototype
Interactive prototypes and usability testing
QA & Test
Automated E2E, load, security, accessibility
Handoff & Optimize
Dev-ready specs, then iterate on data
Want to see how this maps to your specific product?
Technology Stack
We Design and Test Across Every Modern Stack
From Figma and design systems to automated test pipelines, our design and QA work plugs into whatever your product is built on.
Web & Backend
Next.js / React
Node.js / Vue
Python / Django
.NET / Java
TypeScript
Mobile & Cross-Platform
Swift / iOS
Kotlin / Android
React Native
Flutter
Ionic / HarmonyOS
AI / ML / Data
OpenAI / Claude
Gemini / Qwen
PyTorch / TensorFlow
Hugging Face
SageMaker / Vertex AI
Ecommerce & CMS
Shopify / Plus
BigCommerce
WooCommerce
Magento / OpenCart
Webflow / Framer
Cloud & DevOps
AWS / GCP / Azure
Docker / K8s
Terraform / IaC
GitHub Actions / CI
Datadog / Grafana
Technology Stack
We Design and Test Across Every Modern Stack
From Figma and design systems to automated test pipelines, our design and QA work plugs into whatever your product is built on.
Web & Backend
Next.js / React
Node.js / Vue
Python / Django
.NET / Java
TypeScript
Mobile & Cross-Platform
Swift / iOS
Kotlin / Android
React Native
Flutter
Ionic / HarmonyOS
AI / ML / Data
OpenAI / Claude
Gemini / Qwen
PyTorch / TensorFlow
Hugging Face
SageMaker / Vertex AI
Ecommerce & CMS
Shopify / Plus
BigCommerce
WooCommerce
Magento / OpenCart
Webflow / Framer
Cloud & DevOps
AWS / GCP / Azure
Docker / K8s
Terraform / IaC
GitHub Actions / CI
Datadog / Grafana
Industries We Serve
Design & QA for 50+ Verticals, From Startups to the Fortune 500
Domain expertise across the industries where a well-designed, thoroughly tested product compounds revenue and trust.
Fintech & Banking
Payments, KYC, regulatory tech
Healthcare & HealthTech
HIPAA, telehealth, clinical SaaS
Retail & E-Commerce
DTC, B2B, marketplace, headless
EdTech & Learning
LMS, course platforms, proctoring
Manufacturing & Industrial
IoT, predictive maintenance, MES
Logistics & Supply Chain
Routing, fleet, warehouse, B2B
Legal & LegalTech
Document AI, contract analysis
Media & Entertainment
Streaming, content AI, audience
We know your vertical. Let's design and test a product that leads it.
How We Compare
Design & QA Studio vs Freelancers vs DIY
An honest look at your product design and quality assurance options.
| Capability | Freelance Designer | DIY / Templates | Cheap Agency | Stallyons Technologies |
|---|---|---|---|---|
| End-to-End Design + QA | ✕ Design Only | ✕ Neither | Siloed Teams | One Team, Both |
| User Research & Testing | Sometimes | ✕ None | ✕ Skipped | Every Project |
| Accessibility (WCAG 2.2 AA) | Rarely | ✕ Non-Compliant | Partial | Audited & Compliant |
| Design System & Docs | ✕ Ad-Hoc | ✕ Template Lock-In | Inconsistent | Scalable & Documented |
| Automated E2E / Load / Security | ✕ None | ✕ None | Manual Only | Full Automation |
| Dev-Ready Handoff | Varies | ✕ N/A | Thin Specs | Complete Specs |
| Senior Talent Only | One Person | ✕ You | ✕ Junior-Heavy | Senior-Heavy |
| Post-Launch Partnership | Project End | ✕ DIY | Upsell Retainer | Long-Term (81% Return) |
See the strategic difference for yourself
Complete Engagement
Everything You Get With Our Design & QA Partnership
From Research to Launch to Optimization, All Under One Roof
Here's everything included when you partner with Stallyons for design & QA:
All-Inclusive Design & QA: No Vendor Sprawl, No Hidden Fees.
Every engagement includes all 8 components above. Combine design and QA service lines however your product needs. One contract, one senior team, one predictable price.
🔒 No obligation. We'll deliver a detailed proposal within 48 hours.
Plus, Get These Free Bonuses
Free UX & QA Audit
A 30-point review of your current product's usability, visual consistency, accessibility gaps, and quality risks, with the highest-impact fixes flagged. Yours free whether you hire us or not.
Included Free
Design & QA Roadmap + Estimate
A phased plan with research, design, and testing milestones, a dependency map, and a transparent, itemized estimate across whichever service lines fit your product.
Included Free
Free Design Concept
For qualifying engagements, a key-screen design concept at no cost, so you see the quality of our work before committing to the full build.
Included Free
Risk-Free Partnership
Our Commitment to Your Success
We stand behind every engagement with commitments that protect your investment.
01
User-Tested & Validated
Every design is grounded in research and validated with real users before handoff. We do not ship assumptions, we ship experiences proven to work, so onboarding, engagement, and conversions actually improve.
02
Ships Bug-Free
Senior QA engineers, automated E2E and regression suites, load and security testing, and CI/CD-integrated pipelines catch defects before your users do. You launch with confidence, not crossed fingers.
03
Accessible & On-Time
WCAG 2.2 AA-compliant design and a fixed scope, timeline, and price agreed up front. We deliver on the date we commit to, accessible to every user, or we keep working at no extra cost until we do.
Design and ship with zero risk, backed by our Triple Design & QA Guarantee.
Track Record
Engagements That Ship, Scale, and Compound
500+
Projects Delivered
29+
Service Categories
81%
Repeat Client Rate
4.9 ★
Clutch Rating
"We came to Stallyons after burning two years and four vendors on a multi-platform launch that kept slipping. They scoped it end-to-end — web app, iOS, Android, an AI summarization layer, and a Shopify integration — and shipped it in 22 weeks. One team, one budget, one quality bar. We've handed them three more engagements since."
Mark Sawyer
CEO/Founder
PlatinumLED
"Stallyons rebuilt our customer-facing portal, integrated three legacy systems, shipped an AI document analysis pipeline, and brought our compliance posture to SOC 2 — all under one engagement. The senior engineers on the team have shipped at companies five times our size. It's the best vendor decision we've made in a decade."
Mark Sawyer
CEO/Founder
PlatinumLED
FAQ
Frequently Asked Questions
It depends on scope. A focused UI redesign, a full product design plus a design system, and an end-to-end design-and-QA build are very different projects. Most land between $8k and $60k+. After a free 45-minute discovery call we give you a fixed, itemized quote, so there are no surprises.
Timelines depend on scope. A landing-page redesign might take 2-3 weeks, a complete product design 6-10 weeks, and a full design system plus automated QA suite 3-6 months. We give accurate timelines during discovery and show progress with regular reviews throughout.
UX design shapes how the product works, its flows, information architecture, and usability. UI design shapes how it looks, the visuals, typography, and interaction. QA verifies it actually works as designed, across browsers, devices, load, and edge cases. We own all three so nothing falls between them.
Yes, both are foundational and included in our process. Research includes user interviews, competitive analysis, and analytics review; usability testing includes moderated and unmoderated sessions plus A/B validation, so we design and ship solutions that solve real user problems.
Development-ready designs: high-fidelity UI for all screens and states, interactive prototypes, a design system with reusable components, detailed specs, and all source files, plus a QA package with an automated test suite, test cases, and an accessibility (WCAG 2.2 AA) report.
We design and prototype in Figma, with Miro and FigJam for workshops and research synthesis. For QA we use industry-standard automation frameworks (Playwright, Cypress, Selenium), load tools like k6 and JMeter, and CI/CD integration, wiring tests directly into your pipeline.
Absolutely. We collaborate with in-house teams, external agencies, and freelance developers. Our handoff includes detailed specs, assets, and direct support so developers implement designs accurately, and our QA suite plugs straight into your CI/CD so quality is enforced on every commit.
Yes. Every project includes a WCAG 2.2 AA accessibility pass, and post-handoff support to answer developer questions and fix implementation issues. For ongoing products we offer retainers where we design new features, maintain your design system, and keep the automated test suite green.
Still have questions? Let's talk.
Schedule an appointment with us today!
Ready to Design a Product Users Love and Ship It Bug-Free?
Get a free 45-minute strategy session. Bring the problem, walk away with a path. Just senior design and QA advice from a team that has shipped hundreds of products, no sales script. We'll deliver a detailed proposal within 48 hours.
