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FRONT-END DEVELOPMENT
We craft front-ends that .
Modern, accessible, performant front-end development with React, Next.js, Vue, and design systems. Pixel-perfect, responsive, and conversion-optimized.
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Development Pipeline
From Design to Performant Code
Every interface we build follows a rigorous pipeline: design tokens extracted, components architected, code reviewed, and performance-audited before ship.
Design HandoffFigma / Tokens / Specs
Component ArchitectureAtomic Design / Storybook
ImplementationReact / Next.js / TypeScript
PerformanceLighthouse / Core Vitals
AccessibilityWCAG 2.1 / Screen Readers
Ship & IterateCI/CD / CDN / Monitoring
Who is it for?
Business-specific development
No matter the size of your company, we provide top-notch solutions for your business. Let us assist you in unleashing the full potential of technology for your business goals.
Startups
We help rapidly test concepts and establish a strong product through discovery. You will receive cost-effective and functional software that draws attention and fosters user engagement.
01Small and Medium-sized Enterprises (SMEs)
Our team offers scalable front-end solutions that can adapt and grow with your business. We focus on creating user-friendly designs that increase customer retention and conversion rates.
02Large Corporations
We can cover complex needs, delivering robust and reliable solutions. Our team ensures your platform is capable of handling traffic volumes while offering a seamless user experience.
03WHAT WE DO
Our Front-End development services
- 01
HTML & CSS Responsive Web Development
We create mobile-friendly, responsive websites that function seamlessly across all device types and screen sizes.
- 02
JavaScript and Typescript Development
Utilize our expertise in JavaScript and its frameworks like Angular, React, and Vue.js for high-performance, interactive applications.
- 03
Performance Optimization
We ensure your website loads swiftly and smoothly with our performance optimization strategies.
- 04
Platform-Based Development
We can craft unique front-end solutions tailored to the specifics of each platform.
- 05
Cross-Platform Development
We offer cross-platform development services that provide a consistent and seamless user experience, regardless of the platform being used.
- 06
CMS-Based Development
Leverage our expertise in CMS platforms like WordPress, Zoho, Hubspot and Shopify to create visually appealing and functional websites.
- 07
Design System Implementation
We build and implement scalable design systems with reusable components, design tokens, and comprehensive documentation. Ensure visual consistency across your entire product ecosystem while accelerating development velocity.
- 08
Front-End Architecture & Code Review
Expert guidance on front-end architecture decisions, code quality, and performance optimization. We audit existing codebases, identify bottlenecks, and recommend improvements for maintainability and scale.
Our Process
From mockup to pixel-perfect code
Our front-end development process ensures responsive, performant, and accessible interfaces.
Typical engagement: 10-14 weeks to first launch
AI-assisted engineering, human-led quality - we ship faster without cutting corners.
Typical engagement: 10-14 weeks to first launch
AI-assisted engineering, human-led quality - we ship faster without cutting corners.
Project Kickoff
Phase 1 of 5
1 weekWe review your designs, brand guidelines, and target devices, then agree on the framework, performance budgets, and milestones before the first component is built.
Deliverables
Signed ContractDesign & Asset ReviewPerformance BudgetProject Board SetupDiscovery & Design
Phase 2 of 5
1-2 weeksWe translate designs into a component architecture and a working design system foundation: tokens, typography, and the core components every screen will reuse.
Deliverables
Component ArchitectureDesign Tokens SetupCore Component LibraryResponsive Breakpoint PlanPrototype & Testing
Phase 3 of 5
1-2 weeksThe most complex screens are built first and reviewed against the designs on real devices, so rendering, interaction, and accessibility issues surface early.
Deliverables
Key Screen BuildsDevice Testing NotesAccessibility ReviewDesign QA SessionsDevelopment
Phase 4 of 5
4-6 weeksWe build out every screen and state with pixel-level fidelity, wire up your APIs, and keep Lighthouse scores inside the performance budget on every merge.
Deliverables
Complete UI BuildAPI IntegrationLighthouse ReportsCross-Browser Test ResultsLaunch & Growth
Phase 5 of 5
2+ weeksWe ship to production, verify Core Web Vitals on real traffic, and hand over a documented component library your team can extend without breaking consistency.
Deliverables
Production ReleaseCore Web Vitals ReportComponent DocumentationHandover Session
TECHNICAL STACK
Technologies we use
Discover the cutting-edge technologies and tools that drive DesignKey's exceptional performance and user experience.
React
Next.js
Angular
Vue.js
TypeScript
HTML5
CSS3
Tailwind CSS
- Framer Motion
Storybook
- Vite
- Webpack
- Jest
- Cypress
Playwright
WHY US
Why choose Design Key for front-end development?
We combine design precision with engineering rigor to deliver front-end experiences that delight users and drive business results.
Pixel-Perfect Implementation
Precise design-to-code with zero drift from mockups. Every spacing, color, and interaction matches your design system exactly as intended.
Performance-First Approach
Targeting 90+ Lighthouse scores and sub-second load times. We optimize every bundle, lazy-load strategically, and prioritize Core Web Vitals.
Accessibility Compliance
WCAG 2.1 AA compliance baked into every component. We build inclusive interfaces that work for all users, including those relying on assistive technologies.
Seamless Design-to-Code
Smooth handoff from Figma to production-ready components. We extract design tokens, implement responsive breakpoints, and maintain a living style guide.
Cross-Browser Compatibility
Consistent experience across Chrome, Safari, Firefox, and Edge. We test thoroughly and handle browser-specific quirks so your users never notice the difference.
Scalable Component Architecture
Reusable, maintainable code that grows with your product. We follow atomic design principles and build component libraries that accelerate future development.
WHAT OUR CLIENTS SAY
Real results from real clients
0+Projects Delivered
0%Client Satisfaction
0+Team Members
0+Years Experience
"Daniel and his team have worked on several infrastructure development projects for me. They are excellent experts with exceptional client service and communication skills. Able to dig through complex project requirements and produce an end product that exceeds expectations."
Lori Barao
Manager of Operations, MMI Direct
Case studies
Real projects we've shipped
Recent projects we built for clients - each one shipped, in production, and serving real users.
FAQ
Questions? Answers.
Common questions about our front-end development services.
Ready to get started?
Ready to elevate your front-end?
Schedule a 30-minute intro call with Daniel Killyevo, Founder and Technical Lead at Design Key. We'll discuss your front-end development needs and how to build interfaces that delight your users.
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