Senior UX Engineer

📍 Job Overview

Job Title: Senior UX Engineer

Company: CACI Ltd

Location: Bristol, England, United Kingdom; Cheltenham, England, United Kingdom; Manchester, England, United Kingdom

Job Type: Full-time

Category: Product Design / UX Engineering

Date Posted: 2026-08-05

Experience Level: 5-10 years

Remote Status: Hybrid

🚀 Role Summary

• Drive user-centered design initiatives for a complex data visualization platform, ensuring intuitive and accessible user experiences.

• Lead UX research, usability testing, and accessibility compliance (WCAG 2.2) to inform product development and enhance user satisfaction.

• Collaborate with cross-functional teams, including product owners and developers, to translate research insights into actionable design and development tasks within an agile framework.

• Contribute to and maintain design system documentation, ensuring consistency and scalability across the product suite.

• Provide informal mentorship and guidance to junior designers, fostering a culture of continuous learning and design excellence.

📝 Enhancement Note: The role title "Senior UX Engineer" suggests a blend of UX design principles with a strong technical understanding, particularly in implementation aspects. The emphasis on "engineer" implies a need for practical application of design solutions and a close working relationship with development teams.

📈 Primary Responsibilities

• Lead and facilitate comprehensive usability testing sessions with both internal stakeholders and external customers, meticulously coordinating note-taking and ensuring objective capture of findings for subsequent analysis.

• Synthesize complex research findings into clear, structured documentation that directly links user insights to specific product areas and addresses critical user questions, ensuring actionable outcomes.

• Translate synthesized research insights into well-defined tickets for the development backlog, encompassing both bug fixes and feature enhancements, to drive iterative product improvement.

• Champion web accessibility (WCAG 2.2) as an integral part of the design process, ensuring all features meet recognized accessibility standards from inception rather than as a retrospective addition.

• Actively contribute to and maintain robust design system documentation, ensuring a consistent and scalable design language across the platform and its connected products.

• Work proactively upstream of ticket refinement sessions to embed UX input early in the development lifecycle, mitigating potential issues before they arise in scheduled calls.

• Collaborate closely with development teams, including colleagues located in various global locations and time zones, to effectively bridge the gap between design intent and technical implementation.

• Provide day-to-day guidance and informal mentorship to a junior UI designer, supporting their professional development without formal line management responsibilities.

• Support and actively contribute to working groups focused on improving the handoff and quality assurance processes between design and development teams, identifying and resolving gaps.

📝 Enhancement Note: The responsibilities highlight a senior-level expectation for proactive leadership in research, an ability to translate complex data into actionable output, and a strong focus on accessibility and cross-functional collaboration, particularly with development teams across different time zones.

🎓 Skills & Qualifications

Education: While specific educational requirements are not detailed, a Bachelor's or Master's degree in Human-Computer Interaction, Design, Computer Science, or a related field is typically expected for senior UX roles. Equivalent practical experience will also be considered.

Experience: A minimum of 5-10 years of progressive experience in User Experience (UX) design, with a focus on enterprise or B2B software products. Experience in a lead or senior capacity is essential.

Required Skills:

• Proven experience as a Senior UX Designer, UX Lead, or similar role, with a portfolio demonstrating impactful work in enterprise or B2B software.

• Strong facilitation skills for conducting usability testing sessions with diverse participant groups, including technical and non-technical individuals.

• Solid understanding of web accessibility standards, including WCAG 2.2, and practical experience implementing inclusive design principles and keyboard navigation patterns.

• Demonstrated ability to synthesize qualitative research findings into clear, actionable design and development outputs (e.g., user stories, wireframes, prototypes, design specifications).

• Proficiency in working within Agile delivery workflows and actively contributing to sprint ceremonies (e.g., sprint planning, backlog refinement, retrospectives).

• Familiarity with modern design and prototyping tools, specifically Figma and FigJam, for creating user flows, wireframes, and interactive prototypes.

• Experience collaborating effectively with international teams and stakeholders across different time zones, demonstrating strong cross-cultural communication skills.

• Experience with unmoderated user testing platforms. Preferred Skills:

• Experience contributing to or maintaining design systems.

• Familiarity with business architecture modelling engines or complex data visualization platforms.

• Understanding of data handling and security considerations relevant to defence and government adjacent industries.

• Experience providing informal mentorship or guidance to junior designers.

📝 Enhancement Note: The emphasis on "engineer" in the title, combined with responsibilities like translating insights into tickets and collaborating closely with developers, suggests that candidates with a strong understanding of front-end development principles or experience working very closely with engineering teams will be highly valued.

📊 Process & Systems Portfolio Requirements

Portfolio Essentials:

• A comprehensive portfolio showcasing end-to-end UX design projects, with a particular focus on enterprise or B2B software solutions.

• Evidence of leading UX research initiatives, including detailed methodologies for usability testing and qualitative data synthesis.

• Case studies demonstrating practical application of accessibility standards (WCAG 2.2) and inclusive design principles in shipped products.

• Examples of contributions to or maintenance of design systems, illustrating component design, documentation, and implementation guidelines.

• Clear articulation of how UX insights were translated into actionable development tickets and influenced product roadmaps.

• Demonstrations of collaboration with development teams, including examples of design handoff processes and problem-solving during implementation. Process Documentation:

• Examples of research synthesis documentation, illustrating how raw findings were transformed into actionable insights and user stories.

• Documentation of design system components, guidelines, and best practices.

• Evidence of contribution to agile process improvement, particularly in the areas of design handoff and quality assurance between design and development.

📝 Enhancement Note: Given the "Senior UX Engineer" title and the emphasis on translating research into development-ready tasks, the portfolio should strongly highlight the candidate's ability to bridge the gap between user needs and technical implementation, showcasing how their work directly contributed to a functional, accessible, and user-friendly product.

💵 Compensation & Benefits

Salary Range: Based on industry benchmarks for a Senior UX Engineer with 5-10 years of experience in the UK, particularly in technology consulting roles, the estimated salary range would be between £60,000 and £90,000 per annum. This range accounts for the seniority, specialized skills in UX research and accessibility, and the technical consultancy environment. Actual compensation will depend on candidate experience, specific skills, and negotiation.

Benefits:

• Wellbeing: Free 24/7 counselling helpline and employee assistance program for comprehensive mental health support.

• Work-Life Balance: Flexible working hours (flexitime) and the option for remote work (at home working), combined with access to city-centre offices.

• Career Development: Assigned Career Coach dedicated to guiding professional development and holistic growth.

• Social & Team Building: Regular social events, including ad hoc gatherings, a Summer Party in London, and annual awaydays to foster team cohesion.

• Onsite Allowances: Expenses provided for lunch and drinks when working from CACI offices.

• Security Clearance: Support and requirement to obtain necessary security clearance for specialized industry work.

Working Hours: The standard working hours are approximately 40 hours per week, with a provision for flexitime that allows for adaptable scheduling within the workday.

📝 Enhancement Note: The salary range is an estimate based on typical UK market rates for a Senior UX Engineer with the specified experience level and the nature of the company's industry. The benefits package is detailed, emphasizing work-life balance and professional growth, which are attractive to senior-level candidates.

🎯 Team & Company Context

🏢 Company Culture

Industry: CACI Ltd operates within the Information Intelligence Group (IIG) as a technical consultancy. They provide bespoke solutions to complex operational problems for customers in sectors including defence and government-adjacent industries. The product, MooD, is a large-scale data visualization platform. This positions CACI at the intersection of technology, consulting, and specialized government/defense sectors, requiring a high degree of professionalism, security consciousness, and technical acumen.

Company Size: CACI Ltd is part of a larger organization. While the specific size of the IIG or the Mood business unit isn't detailed, CACI as a whole is a significant entity. This implies a structured environment with established processes, but also potential for agility within product teams. For operations professionals, this size can mean access to resources and broader career paths, alongside the need to navigate larger organizational structures.

Founded: CACI UK is part of CACI International Inc., which was founded in 1962. This long history suggests stability, established expertise, and a deep understanding of the markets they serve. For operations roles, this typically means robust, albeit potentially traditional, operational frameworks and a focus on long-term client relationships.

Team Structure:

• The role is within the Information Intelligence Group (IIG), specifically the Mood business unit, focusing on a product team.

• The UX Engineer will collaborate closely with Product Owners, Developers, and customers.

• There is a junior UI designer who will receive informal mentorship from this role.

• Cross-functional collaboration is a key aspect, with teams potentially distributed across various locations and time zones. Methodology:

• The team works within an Agile delivery workflow, participating in sprint ceremonies.

• A strong emphasis is placed on UX research, usability testing, and translating insights into development backlog items.

• Web accessibility (WCAG 2.2) is a core consideration, integrated into the design process.

• Design systems are utilized and maintained to ensure consistency and scalability.

• The product is built on an established business architecture modelling engine, indicating a need for understanding complex data structures and visualization.

Company Website: https://www.caci.co.uk/

📝 Enhancement Note: The company's focus on defense and government clients is a critical differentiator, implying stringent security requirements and a need for candidates who can adapt to these regulations. The mention of "Information Intelligence Group" and "MooD" platform suggests a sophisticated technical environment.

📈 Career & Growth Analysis

Operations Career Level: This role is positioned as a "Senior UX Engineer," indicating a mid-to-senior level position. It requires significant independent contribution, leadership in specific functional areas (UX research, accessibility), and the ability to mentor junior colleagues. The scope includes influencing product direction and bridging design with development.

Reporting Structure: While not explicitly stated, a Senior UX Engineer typically reports to a Head of Design, UX Lead, Product Manager, or a similar senior role within the product or engineering department. The role also involves mentoring a junior UI designer, suggesting a peer-leadership or informal supervisory aspect.

Operations Impact: The UX Engineer's impact is directly tied to improving the usability, accessibility, and overall user experience of the MooD data visualization platform. This directly influences customer satisfaction, adoption rates, and the platform's effectiveness in solving complex operational problems for clients in sensitive sectors. By ensuring the platform is intuitive and accessible, the role contributes to operational efficiency for clients and CACI's reputation for delivering high-quality, user-friendly solutions.

Growth Opportunities:

• Specialization: Deepen expertise in enterprise UX, accessibility compliance, or specific areas of data visualization.

• Leadership: Transition to a formal UX Lead or Design Manager role, taking on more strategic responsibilities and managing a team.

• Cross-Functional Expertise: Develop a stronger understanding of the underlying business architecture modelling engine and its technical implications, potentially moving towards a more technical UX architect role.

• Mentorship Development: Hone leadership and coaching skills through ongoing mentorship of junior designers.

• Industry Exposure: Gain extensive experience in the defense and government sectors, which can open doors to specialized roles within CACI or similar organizations.

📝 Enhancement Note: The "Senior" title and the mentorship aspect suggest a clear growth path towards more strategic design leadership or specialized technical UX roles within the company's product development lifecycle.

🌐 Work Environment

Office Type: The company offers a hybrid work model, combining access to city-centre offices across the UK (Bristol, Cheltenham, Manchester) with the flexibility of working from home. This suggests a modern, adaptable workplace designed to accommodate diverse working styles and geographic locations.

Office Location(s): Key office locations are Bristol, Cheltenham, and Manchester in England. These city-centre offices likely provide a collaborative hub for team meetings, workshops, and client interactions, while remote work options support flexibility.

Workspace Context:

• Collaboration: The hybrid model necessitates strong digital collaboration tools and practices. Expect regular virtual meetings, use of collaborative whiteboarding tools, and potentially in-person gatherings for specific project phases or team events.

• Tools & Technology: Access to industry-standard design and collaboration tools like Figma, FigJam, Jira, and Confluence is provided, supporting efficient workflow and communication.

• Team Interaction: While remote work is an option, the emphasis on collaboration and mentorship implies opportunities for regular interaction with product owners, developers, and junior designers, both virtually and potentially in person.

Work Schedule: The role offers flexitime, allowing for adaptability in daily work hours, alongside the possibility of working from home. This flexibility is beneficial for managing personal commitments and optimizing productivity, while still requiring responsiveness and availability for team collaboration and sprint ceremonies.

📝 Enhancement Note: The hybrid model with multiple office locations suggests a company that values both in-person collaboration and employee flexibility. Candidates should be comfortable with a blend of remote and office-based work and possess strong self-management and digital communication skills.

📄 Application & Portfolio Review Process

Interview Process:

• Initial Screening: Likely a brief call with HR or a recruiter to assess basic qualifications, interest, and cultural fit.

• Technical Interview/Portfolio Review: A more in-depth session with hiring managers or senior team members. This will involve a detailed walkthrough of your portfolio, focusing on your process, decision-making, and impact. Expect to discuss specific UX research methodologies, accessibility considerations, and your collaboration with development teams.

• Practical Exercise/Case Study: You may be asked to complete a design exercise or present a case study on a past project that demonstrates your problem-solving approach, design thinking, and ability to translate complex requirements into user-centered solutions.

• Team/Stakeholder Interviews: Discussions with potential colleagues (developers, product owners) to assess collaboration style, communication skills, and alignment with team dynamics.

• Final Interview: Potentially a conversation with a senior leader to discuss career aspirations and overall fit within CACI's culture and strategic direction.

Portfolio Review Tips:

• Curate Selectively: Choose 3-5 of your strongest projects that best showcase your senior-level UX engineering skills, particularly in enterprise/B2B contexts, research, and accessibility.

• Emphasize Process: For each project, clearly articulate the problem, your role, your research methodology, design decisions with rationale, collaboration efforts, and the measurable impact or outcome. Use visuals (wireframes, mockups, prototypes, user flows) effectively.

• Highlight Accessibility: Dedicate specific sections or callouts to how you integrated accessibility (WCAG 2.2) into your design process and solutions.

• Showcase Collaboration: Provide examples of how you worked with developers, product owners, and other stakeholders, highlighting your communication and problem-solving skills.

• Quantify Impact: Where possible, include metrics or qualitative feedback that demonstrate the success of your designs.

Challenge Preparation:

• Understand the Domain: Familiarize yourself with CACI, the IIG, and the MooD platform. Research data visualization, business architecture modelling, and the defense/government sectors.

• UX Fundamentals: Be prepared to discuss core UX principles, research methodologies (qualitative and quantitative), usability heuristics, and accessibility best practices.

• Agile Context: Understand how UX integrates into an Agile workflow, including sprint ceremonies and backlog management.

• Problem-Solving Scenarios: Practice articulating how you would approach common UX challenges, such as designing for complex data, improving onboarding, or addressing accessibility barriers.

📝 Enhancement Note: The interview process is expected to be rigorous, focusing on practical application of UX principles, collaboration, and a strong understanding of the company's specific industry context and technical platform. A well-prepared portfolio that highlights senior-level contributions is crucial.

🛠 Tools & Technology Stack

Primary Tools:

• Figma: Core tool for UI design, wireframing, prototyping, and creating design specifications. Proficiency in creating reusable components and working with design systems is essential.

• FigJam: Used for collaborative whiteboarding, brainstorming, user journey mapping, and synthesizing research findings.

• Jira: Essential for project and sprint management, tracking tasks, bugs, and user stories within the Agile development process. Experience in creating clear, actionable tickets for development is key.

• Confluence: Utilized for documentation, knowledge sharing, and maintaining design system guidelines, research summaries, and project information.

Analytics & Reporting: While not explicitly listed, familiarity with analytics platforms (e.g., Google Analytics, Mixpanel) or user feedback tools may be beneficial for understanding user behavior post-launch.

CRM & Automation: Not directly relevant to this UX role, but understanding how the MooD platform integrates with other enterprise systems may be an advantage.

📝 Enhancement Note: The specified tools (Figma, FigJam, Jira, Confluence) are standard for modern UX/product teams. The emphasis on Figma and FigJam for design and collaboration, and Jira/Confluence for workflow management, highlights the need for candidates to be proficient in these interconnected platforms.

👥 Team Culture & Values

Operations Values:

• User-Centricity: A strong commitment to understanding and serving user needs through research and iterative design.

• Accessibility: Embedding inclusive design principles and adhering to WCAG 2.2 standards as a fundamental requirement.

• Collaboration: Fostering a team-led environment where cross-functional collaboration, open communication, and knowledge sharing are paramount.

• Excellence & Quality: Striving for high standards in design execution, technical implementation, and problem-solving, particularly within complex enterprise solutions.

• Continuous Improvement: Embracing an Agile mindset for iterative development and a commitment to ongoing learning and professional growth.

Collaboration Style:

• Cross-functional Integration: Working closely with product owners, developers, and customers to ensure alignment and shared understanding throughout the product lifecycle.

• Proactive Communication: Engaging early in the development process to embed UX insights and resolve potential issues before they impact sprints.

• Mentorship & Support: Providing guidance and support to junior team members, fostering a collaborative and developmental atmosphere.

• Data-Driven Decision Making: Utilizing research findings and user feedback to inform design choices and product strategy.

📝 Enhancement Note: The company culture appears to value a blend of technical expertise, user advocacy, and collaborative teamwork, with a strong emphasis on quality and inclusivity, particularly concerning accessibility in their specialized client sectors.

⚡ Challenges & Growth Opportunities

Challenges:

• Complexity of Data Visualization: Designing intuitive interfaces for a platform that visualizes complex organizational and process data requires deep user understanding and innovative design solutions.

• Balancing Enterprise Needs with Usability: Meeting the stringent requirements of defense and government clients (security, data handling) while delivering a visually appealing, accessible, and intuitive user experience.

• Cross-Time Zone Collaboration: Effectively coordinating with distributed international teams requires excellent asynchronous communication strategies and careful meeting scheduling.

• Mentoring Without Formal Authority: Providing effective guidance and support to a junior designer while not having direct line management responsibilities requires strong interpersonal and influence skills.

• Keeping Pace with Accessibility Standards: Ensuring continuous compliance with evolving accessibility regulations and best practices.

Learning & Development Opportunities:

• Deepen UX Expertise: Opportunity to become a subject matter expert in enterprise UX, data visualization interfaces, or advanced accessibility compliance.

• Technical Acumen: Develop a stronger understanding of the underlying business architecture modelling engine and its technical implications, potentially leading to UX architect roles.

• Leadership Skills: Enhance mentorship and informal leadership capabilities through guiding junior designers and influencing cross-functional teams.

• Industry Specialization: Gain significant experience within the defense and government sectors, a niche area with unique challenges and opportunities.

• Continuous Learning: Access to resources and support for staying current with UX trends, tools, and accessibility standards.

📝 Enhancement Note: The role presents significant challenges related to complexity and cross-cultural collaboration, but these are balanced by substantial growth opportunities in specialization, leadership, and industry expertise.

💡 Interview Preparation

Strategy Questions:

• UX Strategy: "Describe a time you had to design for a complex data set. How did you approach understanding the users and their needs, and what was your design process for ensuring clarity and usability?" (Focus on research, synthesis, and iterative design).

• Collaboration & Stakeholder Management: "How do you ensure effective collaboration between UX designers and development teams, especially when working across different time zones? Provide an example of a challenge you faced and how you resolved it." (Highlight communication, Proactive handoff, and conflict resolution).

• Problem-Solving & Impact: "Walk me through a project where you significantly improved the accessibility of a product. What steps did you take, what were the challenges, and how did you measure the impact?" (Emphasize process, WCAG knowledge, and outcome demonstration).

Company & Culture Questions:

• "What interests you about CACI and the MooD platform, particularly given our work in defense and government sectors?" (Research CACI's mission, the IIG, and the challenges of working in these sectors).

• "How do you approach mentorship, and how would you support a junior designer in this role?" (Demonstrate leadership potential, empathy, and a collaborative spirit).

• "How do you ensure your UX decisions are data-driven and align with business objectives?" (Discuss your approach to research, analytics, and stakeholder alignment). Portfolio Presentation Strategy:

• Structure for Impact: Organize your portfolio to clearly present 3-5 key projects. For each, detail the problem, your role, your methodology (research, design, testing), collaboration efforts, and the final outcome/impact.

• Tell a Story: Frame each project as a narrative, highlighting your problem-solving journey and decision-making process. Use visuals (wireframes, mockups, prototypes, user flows) effectively.

• Quantify & Qualify: Present metrics or qualitative feedback to demonstrate the success and impact of your work. For accessibility projects, be specific about standards met and improvements achieved.

• Accessibility Focus: Dedicate specific attention to how you addressed accessibility in your projects, demonstrating practical application of WCAG guidelines.

• Technical Bridge: Clearly articulate how you translated UX designs into actionable development tasks and collaborated with engineering teams.

📝 Enhancement Note: Interview preparation should focus on showcasing senior-level strategic thinking, practical application of UX and accessibility principles, strong collaborative skills, and an understanding of CACI's specific industry context and technical challenges.

📌 Application Steps

To apply for this Senior UX Engineer position:

• Submit your application through the provided link on the Dayforce portal.

• Portfolio Customization: Tailor your resume and cover letter to highlight your experience in enterprise/B2B UX, UX research, accessibility (WCAG 2.2), and your ability to bridge design and development. Ensure your portfolio prominently features relevant case studies.

• Resume Optimization: Clearly articulate your years of experience, specific responsibilities, and achievements using keywords from the job description (e.g., UX research, usability testing, Figma, Agile, accessibility, WCAG 2.2). Quantify your impact where possible.

• Interview Preparation: Practice articulating your design process, decision-making rationale, and collaborative experiences. Prepare to discuss how you would approach challenges specific to complex data visualization and regulated industries. Review CACI's website and LinkedIn for company insights.

• Security Clearance Readiness: Be prepared to confirm your eligibility for UK security clearance, including being a British passport holder and having resided in the UK for the last 5 years.

⚠️ Important Notice: This enhanced job description includes AI-generated insights and operations industry-standard assumptions. All details should be verified directly with the hiring organization before making application decisions.