Senior UI/UX Designer in Slough

Senior UI/UX Designer in Slough

Slough Full-Time 60000 - 80000 € / year (est.) No home office possible
Cocone UK

At a Glance

  • Tasks: Lead the visual redesign of a mobile app and create a scalable design system.
  • Company: Join COCONE UK, a dynamic subsidiary of a Japanese company focused on emotional connections.
  • Benefits: Hybrid work model, competitive salary, and opportunities for professional growth.
  • Other info: Work with a passionate team and enjoy a culture of innovation and creativity.
  • Why this job: Make a real impact on user experience in a creative and collaborative environment.
  • Qualifications: 5+ years in product design with a strong portfolio and experience in design systems.

The predicted salary is between 60000 - 80000 € per year.

COCONE UK is the subsidiary of Cocone ONE Corporation, a Japanese company known for avatar-based social mobile experiences. We build consumer-facing mobile products focused on emotional connection, engagement, and long-term user relationships.

We are looking for a Senior UI/UX Designer (UI & Design System-led) based in London (hybrid model) to take creative ownership of the visual experience of a live mobile product on Android and iOS with built-in gamification. This role is centered on a full visual redesign of the product and the creation of a scalable design system that defines how every screen, component, and interaction looks and feels. You will translate our target audience, brand, and emotional positioning into a cohesive, high-craft UI and continue to refine user flows where they intersect with the visual layer. You will work closely with product managers, engineers, and artists to ensure design decisions are grounded in user needs while supporting business objectives.

What You'll Do

  • Lead an end-to-end visual redesign of a consumer-facing mobile application built in Unity, raising the bar on craft, hierarchy, and emotional tone.
  • Build and own a scalable design system: typography, color, components, iconography, motion, and usage guidelines.
  • Translate audience insights, brand positioning, and product goals into a cohesive visual language across all screens and features.
  • Design high-fidelity UI for core features and systems, ensuring consistency and quality across the product.
  • Conduct UX audits to identify visual inconsistencies, usability friction, and opportunities to elevate the experience.
  • Refine user flows, information architecture, and wireframes where they intersect with the visual redesign.
  • Define UX hypotheses, validate them through testing, and iterate based on insights.
  • Collaborate closely with product and engineering teams to ensure designs are feasible and faithfully implemented.
  • Analyze user behavior data, usability testing results, and qualitative feedback to inform design decisions.
  • Establish clear recommendations for improving usability, consistency, and accessibility.

Requirements

  • 5+ years of professional product design experience for consumer-facing mobile applications, with a strong portfolio of shipped UI work.
  • Demonstrated experience building and scaling a design system from the ground up (typography, color, components, iconography, motion).
  • Proven experience leading a full visual redesign or major UI overhaul of a live product.
  • Experience owning UI for complex systems and feature sets, not just individual screens.
  • Strong track record of collaboration with product managers and engineers.
  • Experience contributing to product improvements tied to engagement or retention metrics.

Skills

  • Exceptional visual design skills: typography, color theory, layout, hierarchy, iconography, and component design.
  • Deep understanding of design systems β€” how to structure, document, and scale them.
  • Strong sensibility for emotional tone, brand expression, and craft in consumer mobile UI.
  • Solid understanding of mobile platform conventions and constraints (Android and iOS).
  • Strong grasp of UX principles, interaction design, and information architecture.
  • Ability to diagnose UX problems and propose effective, scalable solutions.
  • High proficiency with modern design tools (Figma or equivalent), including advanced use of components, variables, and tokens.
  • Ability to clearly articulate design decisions and rationale.
  • Experience leveraging data, user feedback, and usability testing to guide design decisions.
  • Understanding and ability to apply gamification principles in UI/UX.

Soft Skills

  • High level of ownership and accountability.
  • Strong communication and cross-functional collaboration skills.
  • Comfort working in an international environment.
  • Proactive, problem-solving mindset.
  • Strong attention to product quality and user experience.

Nice to Have

  • Experience designing for social features, avatar systems, fashion/customization, or emotionally-driven digital experiences.
  • Experience designing for female-skewing or lifestyle-oriented consumer audiences.
  • Familiarity with accessibility best practices.
  • Experience mentoring or guiding other designers.
  • Experience implementing UI assets in Unity.

Interview Process

  • Initial Interview (30–45 minutes)
  • Practical Test (2–3 days)
  • Design Review & Deep Dive (60–90 minutes)
  • Final Interview & Offer Discussion (30–40 minutes)
  • 3-Month Probation Period Offer

How to Apply

  • CV
  • Portfolio showcasing high-fidelity UI work, design system samples, and shipped consumer mobile products (mandatory)
  • Optional: a brief written reflection on a redesign or design system project you led

Senior UI/UX Designer in Slough employer: Cocone UK

COCONE UK is an exceptional employer that fosters a creative and collaborative work environment, perfect for innovative minds looking to make a significant impact in the mobile product space. With a hybrid working model based in London, employees enjoy a flexible work-life balance while having access to professional growth opportunities through hands-on projects and cross-functional teamwork. The company values emotional connection and user engagement, making it an ideal place for designers passionate about crafting meaningful experiences.

Cocone UK

Contact Detail:

Cocone UK Recruiting Team

StudySmarter Expert Advice🀫

We think this is how you could land Senior UI/UX Designer in Slough

✨Tip Number 1

Get your portfolio in tip-top shape! Make sure it showcases your best UI work and any design systems you've built. We want to see your creative flair and how you tackle real-world problems.

✨Tip Number 2

Practice makes perfect! Before the interview, run through common design challenges and be ready to discuss your thought process. We love seeing how you approach problems and come up with solutions.

✨Tip Number 3

Don’t just talk about your designs; show us the impact! Be prepared to share metrics or feedback that highlight how your work has improved user engagement or retention. Numbers speak volumes!

✨Tip Number 4

Apply through our website! It’s the best way to ensure your application gets seen by the right people. Plus, we’re always on the lookout for passionate designers who can elevate our products.

We think you need these skills to ace Senior UI/UX Designer in Slough

Visual Design Skills
Design System Development
UI/UX Principles
Mobile Platform Conventions (Android and iOS)
Information Architecture
Interaction Design
Usability Testing

Some tips for your application 🫑

Showcase Your Best Work:Make sure your portfolio is packed with high-fidelity UI work that really shines. We want to see your design system samples and any consumer mobile products you've shipped. This is your chance to show us what you can do!

Tailor Your CV:Don’t just send a generic CV! Tailor it to highlight your experience in UI/UX design, especially focusing on mobile applications. We love seeing how your skills align with our needs, so make it relevant!

Reflect on Your Projects:If you choose to include a written reflection, make it count! Share insights from a redesign or design system project you led. We’re keen to understand your thought process and how you tackle challenges.

Apply Through Our Website:We encourage you to apply through our website for a smoother process. It helps us keep everything organised and ensures your application gets the attention it deserves. Don’t miss out!

How to prepare for a job interview at Cocone UK

✨Showcase Your Portfolio

Make sure to bring a well-organised portfolio that highlights your best UI work, especially projects where you've built or contributed to a design system. Tailor your examples to reflect the emotional connection and engagement aspects mentioned in the job description.

✨Understand the Product and Audience

Before the interview, research COCONE UK and their products. Familiarise yourself with their target audience and think about how your design philosophy aligns with their goals. Be ready to discuss how you would translate audience insights into a cohesive visual language.

✨Prepare for Practical Tests

Since there's a practical test involved, practice redesigning a mobile app or creating a mini design system. Focus on demonstrating your understanding of hierarchy, emotional tone, and usability. This will help you feel more confident and prepared during the actual test.

✨Communicate Your Design Decisions

During the interview, be clear about your design rationale. Explain how your choices are grounded in user needs and business objectives. This shows that you not only have the skills but also the ability to collaborate effectively with product managers and engineers.