About Keyfactor

Our mission is to build a connected society, rooted in trust, with identity-first security for every machine and human. Keyfactor helps organizations move fast to establish digital trust at scale — and then maintain it. With decades of cybersecurity experience, Keyfactor is trusted by more than 1,500 companies across the globe. We are proud to continually earn recognition as a Best Place to Work, and we achieve that through our amazing people who cultivate our culture as we grow. We hope you will trust your future with Keyfactor!

Title: Senior UX Engineer

Location: Spain; Barcelona

Experience: Mid - Senior

Job Function: Engineering

Employment Type: Full-Time

Industry: Computer & Network Security

Job Summary

In 2019, Keyfactor decided to widen its investment and acquired Redtrust, a Spanish company pioneer in the management of people’s identity through the custody and management of digital certificates. Redtrust has a strong reputation for providing top-notch products and services in Spain. As a Senior Manager, you’ll be a key member of the engineering team and will develop & maintain Redtrust products.

The Senior UX Engineer plays a key role in designing and delivering high-quality customer experience for complex products within Redtrust's ecosystem. This role combines strong hands-on execution with ownership of UX solutions at the product or feature level. The Senior UX Engineer partners closely with Product Management, Engineering and other departments to translate customer needs and business requirements into intuitive, scalable interaction models, while contributing to UX standards and design system evolution.

The position is based in the Barcelona office, we have a hybrid work model and excellent flexible working practices. Applicants must hold valid Right to Work in Spain to apply for this position.

Job Responsibilities

UX Design & Execution

Design end-to-end user experiences for complex workflows and technical products, primarily in B2B environments.
Translate research insights, requirements, and constraints into clear interaction models and UI designs.
Create wireframes, prototypes, and detailed design specifications to support development.
Ensure usability, accessibility, and visual consistency across assigned products or features.

Collaboration & Delivery

Work closely with Product Managers and Engineers to define and deliver UX solutions.
Collaborate with Marketing, Sales, Customer Success, and Support to understand customer journeys, identify experience gaps, and surface UX-driven improvement opportunities.
Participate in sprint planning, design reviews, and delivery cycles to ensure UX quality.
Collaborate with front-end engineers to ensure designs are technically feasible and well implemented.
Review implemented UI and provide feedback to maintain UX standards.

Design Systems & Consistency

Contribute to the evolution and adoption of the design system.
Apply established UX principles and design standards consistently across products.
Identify UX inconsistencies and proactively propose improvements.

User Research & Validation

Participate in user research activities such as interviews, usability testing, and feedback analysis.
Validate design decisions through testing and data where appropriate.
Incorporate user insights into design iterations and product improvements.

Mentorship & Influence

Act as a UX subject-matter expert within project teams.
Provide guidance and constructive feedback to less experienced UX designers.
Promote human-centered design practices through collaboration and example.

Minimum Qualifications, Education, and Skills

Required

Significant experience in UX, interaction design, or related roles.
Proven experience designing complex or technical products.
Strong portfolio demonstrating end-to-end UX problem solving.
Solid understanding of UX principles, interaction design, and usability best practices.
Ability to collaborate effectively with Product and Engineering teams.
Familiarity with front-end development concepts and constraints.

Preferred

Experience in enterprise or B2B software environments.
Experience contributing to or working within a design system.
Knowledge of accessibility standards and inclusive design.
Experience mentoring junior designers.

Success Metrics

High-quality, usable UX solutions delivered on time.
Positive user feedback and improved usability metrics within owned products or features.
Consistent application of design standards and UX patterns.
Effective collaboration with Product and Engineering partners.
Reduced design rework through clear specifications and early alignment. #LI-NA1

Compensation

Salary will be commensurate with experience. 

Culture, Career Opportunities and Benefits

We build teams that continually strive to get better than the day before. You will be challenged daily and given opportunities to grow personally and professionally. We balance autonomy and structure to create an entrepreneurial environment to spur creativity and new ideas. 

Here are just some of the initiatives that make our culture special:  

Second Fridays (a company-wide day off on the second Friday of every month minus November and December of 2025 due to the Holiday schedule). Please note that this benefit is subject to change.
Comprehensive benefit coverage globally.
Generous paid parental leave globally.
Competitive time off globally.
Dedicated employee-focused ambassadors via Key Contributors & Culture Committees.
DIVERSE Commitment, a call to action for a more inclusive and diverse future in business, society, and technology.
The Keyfactor Alliance Program to support DEIB efforts.
Wellbeing resources, wellness allowance, mindfulness app free membership, Wellness Wednesdays.
Global Volunteer Day, company non-profit matching, and 3 volunteer days off.
Monthly Talent development and Cross Functional meetings to support professional development.
Regular All Hands meetings – followed by group gatherings.

Our Core Values

Our core values are extremely important to how we run our business and what we look for in every team member:  

Trust is paramount.  

We deliver security software and solutions where trust and openness are of the highest importance for our customers. We are honest and a trusted partner in every aspect of business.  

Customers are core.  

We strategize, operate, and execute through a customer-centric view. We prioritize the security interests of our customers, and we act as if their data were our own.  

Innovation never stops, it only accelerates.  

The speed of change is accelerating. We are committed, through investment and focus, to stay ahead of the innovation curve.  

We deliver with agility.   

We thrive in high-paced and continually changing environments. We navigate through newly added variables, adjust accordingly, while driving towards our strategic goals.  

United by respect.   

Respect for all is what unites us. We promote diversity, inclusivity, equity, and acting with empathy and openness, both in our business and in our communities.  

Teams make “it” happen.  

Vision and goals are not individually achievable – they require teamwork. We pride ourselves in operating as a cohesive team, creating promoters and partners, and winning as one.  

Keyfactor is a proud equal opportunity employer including but not limited to veterans and individuals with disabilities. 

REASONABLE ACCOMMODATION: Applicants with disabilities may contact a member of Keyfactor’s People team via people@keyfactor.com and/or telephone at 1.216.785.2990 to request and arrange for accommodations at any time.

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Senior UX Engineer

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