Senior UX/UI Designer for ESG Platform

Apex Group Ltd (UK Branch); Valencia; On-site; EUR 52,000 - 72,000; Full time

Job summary

Apex Group Ltd (UK Branch) is seeking a UX/UI Designer for Holtara to help make sustainability data clearer through thoughtful UX, UI and visual design. You will collaborate with Product, Engineering, Data and Advisory teams to research, design and improve Holtara.io and related client-facing outputs.

The role emphasizes translating complex requirements into intuitive journeys, contributing to the design system, and applying strong design thinking to software interfaces and communications.

Qualifications

• Strong experience in UX, UI or product design with a portfolio.
• Practical experience conducting user research, particularly interviews and usability testing.
• Experience designing complex B2B software, data products, enterprise platforms or configurable workflows.

Responsibilities

• Design clear, intuitive experiences for Holtara.io from concept to implementation.
• Translate complex sustainability and data requirements into simple user journeys.
• Contribute to and evolve the Holtara.io design system for consistency and scalability.
• Review implemented designs with developers to ensure fidelity to design intent.
• Plan and conduct interviews, usability testing and workshops to inform design decisions.
• Create wireframes, prototypes and high-fidelity designs for exploration and communication.

Skills

UX design

UI design

Product design

User research

Design systems

Prototyping

Figma

AI tools

Communication

Collaboration

Tools

Figma

AI tools

Job description

Apex Group Ltd (UK Branch) is seeking a UX/UI Designer for Holtara to help make sustainability data clearer through thoughtful UX, UI and visual design. You will collaborate with Product, Engineering, Data and Advisory teams to research, design and improve Holtara.io and related client-facing outputs.

The role emphasizes translating complex requirements into intuitive journeys, contributing to the design system, and applying strong design thinking to software interfaces and communications.