Principal UI UX Engineer

📍 Job Overview

Job Title: Principal UI UX Engineer

Company: VIDIZMO LLC

Location: Karachi, Sindh, Pakistan

Job Type: Permanent

Category: UI/UX Engineering & Frontend Development

Date Posted: August 18, 2026

Experience Level: 5-10 Years

Remote Status: On-site

🚀 Role Summary

• Lead the end-to-end design and development of intuitive, high-performance user interfaces for enterprise-class video streaming and processing applications.

• Drive the creation and maintenance of a comprehensive design system, ensuring visual and behavioral consistency across product and marketing surfaces.

• Implement pixel-perfect, accessible HTML5/CSS3/SCSS and production UI using React and/or Angular, optimizing for performance and responsiveness.

• Collaborate closely with product, engineering, and marketing teams to translate complex requirements into validated design solutions.

• Utilize AI-assisted tooling to enhance productivity in both design and development workflows, while maintaining rigorous quality control and accountability for final deliverables.

📝 Enhancement Note: This role is a hybrid of UI/UX design and frontend engineering, requiring a candidate who can operate autonomously across both disciplines. The emphasis on "Principal" suggests a leadership or senior individual contributor role with significant impact on product direction and technical execution. The explicit mention of AI tool usage with a caveat for human oversight highlights a modern approach to development workflows.

📈 Primary Responsibilities

• Spearhead the entire UX process, including user research, journey mapping, wireframing, and creating interactive prototypes for both product and marketing platforms.

• Conduct usability testing to validate design concepts and ensure user-centricity.

• Develop, maintain, and evolve a shared design system, encompassing components, design tokens, and reusable patterns to ensure visual and functional consistency.

• Translate ambiguous requirements from stakeholders into clear, actionable interaction and visual design specifications.

• Apply advanced principles of visual design, including typography, layout, color theory, and motion design, to create polished and engaging user experiences.

• Hand-code production-ready UI using HTML5, CSS3/SCSS, and modern JavaScript frameworks like React or Angular.

• Build and maintain the company's marketing website, including landing pages, campaign assets, and brand experience elements.

• Ensure all developed interfaces meet stringent accessibility standards (WCAG, Section 508) and support multilingual/Right-to-Left (RTL) layouts.

• Optimize application performance and responsiveness across a variety of devices, screen sizes, and browsers.

• Leverage analytics and A/B testing to inform design decisions and validate post-launch effectiveness.

• Utilize AI-assisted tools (e.g., Claude, Copilot) to accelerate design and development tasks, ensuring all AI-generated output is thoroughly reviewed and refined.

📝 Enhancement Note: The responsibilities clearly delineate a dual focus on design leadership and hands-on engineering execution. The emphasis on a design system and enterprise SaaS experience indicates a need for scalable and robust solutions. The requirement for AI tool usage with stringent validation underscores the company's forward-thinking approach to development while prioritizing quality and accountability.

🎓 Skills & Qualifications

Education: Bachelor's degree in Computer Science, Software Engineering, IT, or a closely related field.

Experience: Minimum of 5 years of experience in designing and building production-ready web interfaces, demonstrating proficiency across both UI/UX design and frontend engineering disciplines.

Required Skills:

• Expert proficiency in hand-coding HTML5, CSS3, and SCSS, with a strong understanding of modern CSS methodologies and frameworks like Bootstrap.

• Hands-on experience with leading JavaScript frameworks, specifically React and/or Angular, for building complex user interfaces.

• Advanced skills in UI/UX design tools, with required fluency in Figma, and familiarity with Adobe XD, Photoshop, or Illustrator.

• Proven ability to conduct user research, create journey maps, develop wireframes, and build interactive prototypes.

• Deep understanding and practical application of accessibility standards, including WCAG and Section 508 compliance.

• Strong visual and interaction design instincts, with the ability to apply fundamental design principles effectively.

• Experience working within Agile/Scrum development methodologies.

• Ability to write clean, standards-compliant code (W3C).

• Demonstrated experience in enterprise SaaS environments.

• Authorized to work legally in Pakistan. Preferred Skills:

• Prior end-to-end ownership experience for both a marketing website (including CMS integration and campaign management) and a product design system.

• In-depth experience with RTL (Right-to-Left) and bidirectional layout design.

• Comfort and proficiency working within an AI-assisted design and development workflow.

📝 Enhancement Note: The requirement for "real, shipped work spanning both disciplines" is critical. Candidates should be prepared to showcase projects that clearly demonstrate their capabilities in both design and development, rather than specializing in one area. The emphasis on hand-coding and understanding of foundational technologies (HTML, CSS) alongside modern frameworks is a key differentiator.

📊 Process & Systems Portfolio Requirements

Portfolio Essentials:

• A comprehensive portfolio showcasing end-to-end ownership of projects, from initial user research and wireframing through to the final shipped user interface.

• Examples of interactive prototypes demonstrating user flows and interaction design.

• Case studies detailing the problem, your design process, solutions implemented, and quantifiable outcomes.

• Visual representations of a design system, including components, patterns, and style guides.

• Demonstrations of responsive design implementation across various devices and screen sizes.

• Evidence of accessibility considerations and solutions in implemented projects. Process Documentation:

• Documentation of UX research methodologies and findings.

• Workflow diagrams illustrating the end-to-end UX and development process.

• Examples of design system documentation and guidelines for component usage.

• Code samples demonstrating clean, maintainable, and accessible frontend code.

• Evidence of utilizing analytics and A/B testing for design validation and iteration.

📝 Enhancement Note: The portfolio is paramount for this role, serving as the primary evidence of the candidate's dual expertise. It should not only showcase aesthetic design but also the technical execution and strategic thinking behind it, including how user needs were identified and met through both design and code. Demonstrating an understanding of how to build and maintain a design system is also crucial.

💵 Compensation & Benefits

Salary Range: Based on industry standards for a Principal UI UX Engineer with 5-10 years of experience in Karachi, Pakistan, the estimated annual salary range is PKR 3,600,000 - PKR 6,000,000. This range is an estimate and may vary based on the candidate's specific qualifications, experience, and interview performance.

Benefits:

• Health Insurance (Outpatient Department/Inpatient Department - OPD/IPD)

• Separate Maternity Cover

• Leave Encashment

• Car Support Program

• Referral Bonus

• EOBI (Employees' Old-Age Benefits Institution) contributions

• Bi-Annual Increment opportunities

• Provident Fund

• Career Growth opportunities

• Bonus

Working Hours: Standard full-time working hours, likely 40 hours per week, with potential for flexibility depending on project demands and team coordination.

📝 Enhancement Note: The salary estimate is derived from research on senior engineering and design roles in major Pakistani tech hubs, considering the "Principal" title and the required experience level. Benefits listed are standard for reputable tech companies in the region, with specific additions like a Car Support Program indicating a higher tier of employee benefits.

🎯 Team & Company Context

🏢 Company Culture

Industry: Technology, specifically AI-Powered Intelligence Hubs and Multimodal AI Data Intelligence Platforms. VIDIZMO is a Microsoft Solutions Partner in Data & AI, Infrastructure, and Digital & App Innovation.

Company Size: While not explicitly stated, the mention of "Fortune 500 companies," "large enterprises," and "governments" suggests a company that serves large-scale clients, implying a robust and established operational structure, likely mid to large-sized.

Founded: VIDIZMO is a USA-based technology company. The exact founding date is not provided, but their partnership with Microsoft and focus on advanced AI technologies indicate a modern, innovative operational history.

Team Structure:

• The UI/UX Engineering team likely comprises individuals with specialized skills in design, frontend development, and potentially interaction design, working collaboratively.

• This role is described as "Principal," suggesting it may lead or significantly influence a sub-team or a specific product area's frontend and design execution.

• Cross-functional collaboration is expected with product management, backend engineering, AI/ML teams, and marketing. Methodology:

• Data-driven decision-making, utilizing analytics and A/B testing to inform design and development choices.

• Agile/Scrum methodologies for iterative development and project management.

• Emphasis on AI-assisted workflows for efficiency, balanced with rigorous human oversight and accountability for quality.

• Focus on building enterprise-class, scalable, secure, and compliant solutions.

Company Website: https://vidizmo.ai/

📝 Enhancement Note: The company operates at the cutting edge of AI and data intelligence, serving high-profile clients. This suggests a culture that values innovation, technical excellence, and robust solutions. The "Principal" title implies a level of autonomy and responsibility expected within such an environment.

📈 Career & Growth Analysis

Operations Career Level: This is a "Principal" level role, indicating a senior individual contributor or a potential technical lead position. It signifies a high degree of expertise, autonomy, and influence in UI/UX design and frontend engineering. The role is expected to drive technical direction, mentor junior team members, and contribute significantly to strategic product decisions related to user experience and interface implementation.

Reporting Structure: While not explicitly detailed, a Principal Engineer typically reports to an Engineering Manager, Director of Engineering, or Head of Product/Design. They are expected to work closely with product managers and cross-functional teams.

Operations Impact: The UI/UX Engineer directly impacts the user's perception and interaction with VIDIZMO's AI-Powered Intelligence Hub and Multimodal AI Data Intelligence Platform. Their work in creating intuitive, high-performance, and accessible interfaces is critical for customer adoption, satisfaction, and retention, ultimately contributing to revenue growth and market competitiveness.

Growth Opportunities:

• Technical Specialization: Deepen expertise in specific frontend frameworks (React, Angular), advanced UI/UX patterns, or accessibility standards.

• Leadership Development: Transition into a Technical Lead or Engineering Manager role, managing a team of UI/UX engineers and frontend developers.

• Product Strategy: Contribute more significantly to product roadmap planning and feature definition from a user experience and technical feasibility perspective.

• AI Integration: Further develop skills in leveraging AI tools for design and development, potentially exploring AI's role in user research or design validation.

• Cross-functional Exposure: Gain broader experience by working on different product lines or collaborating with specialized teams like backend, AI/ML, or DevOps.

📝 Enhancement Note: The "Principal" title suggests a career trajectory focused on deep technical expertise and influence, rather than purely management. Growth opportunities will likely involve taking on more complex projects, leading technical initiatives, and potentially mentoring other engineers.

🌐 Work Environment

Office Type: The role is designated as "On-site" in Karachi, Pakistan. This suggests a traditional office environment designed for collaboration, focused work, and team interaction.

Office Location(s): Karachi, Sindh, Pakistan. Specific details about the office amenities or accessibility are not provided but can be inferred to be a professional corporate setting.

Workspace Context:

• Collaborative Environment: The on-site nature implies opportunities for face-to-face collaboration with colleagues, fostering quick problem-solving and team cohesion.

• Tools and Technology: Access to standard office equipment, reliable internet, and potentially specialized hardware or software required for design and development work. The company's tech stack, including Figma, React, Angular, and AI tools, will be readily available.

• Team Interaction: Regular opportunities for team meetings, design critiques, code reviews, and informal discussions with peers and stakeholders.

Work Schedule: Standard full-time business hours are expected (approximately 40 hours per week). While the role is on-site, the company's use of AI tools and focus on efficiency might suggest a results-oriented approach rather than strict time-tracking, though adherence to a set schedule is typical for on-site positions.

📝 Enhancement Note: An on-site role in Karachi likely means working within a professional office building. The company's focus on technology and enterprise solutions suggests a modern office setup conducive to focused work and team collaboration.

📄 Application & Portfolio Review Process

Interview Process:

• Initial Screening: A review of your resume and portfolio to assess foundational qualifications and experience.

• Technical Interview(s): In-depth discussions and potential live coding exercises focusing on HTML, CSS, JavaScript, React/Angular, and UI/UX principles. This may include problem-solving scenarios related to accessibility, performance, or responsive design.

• Design Challenge/Portfolio Review: A dedicated session to walk through your portfolio. Expect to discuss your design process, decision-making rationale, challenges faced, and solutions implemented for specific projects. You may be asked to articulate how you'd approach a hypothetical design problem.

• Behavioral & Cultural Fit Interview: Questions assessing your collaboration style, problem-solving approach, experience with Agile methodologies, and how you handle feedback. Your understanding of AI tool usage and accountability will also be evaluated.

• Final Interview: Potentially with senior leadership to discuss strategic alignment and overall fit for the Principal role.

Portfolio Review Tips:

• Curate Strategically: Select 3-5 of your strongest projects that best demonstrate end-to-end ownership across both design and development.

• Tell a Story: For each project, clearly articulate the problem statement, your role, the user needs, your design process, technical implementation details, challenges, and the measurable impact or outcome.

• Highlight Dual Expertise: Explicitly showcase your contributions in both UI/UX design (research, wireframes, prototypes) and frontend engineering (code quality, framework usage, accessibility implementation).

• Showcase Design System Work: If applicable, present examples of design systems you've contributed to or built, detailing components, guidelines, and their impact on consistency.

• Quantify Results: Wherever possible, use metrics (e.g., conversion rates, performance improvements, user satisfaction scores) to demonstrate the value of your work.

• Be Ready for Live Coding/Design Tasks: Prepare for potential live coding challenges or design exercises during the interview process.

Challenge Preparation:

• Practice Design Thinking: Be ready to articulate your approach to solving design problems using a structured methodology.

• Code Proficiency: Refresh your knowledge of modern JavaScript, HTML5, CSS3/SCSS, and your primary framework (React/Angular). Practice writing clean, efficient, and accessible code.

• Accessibility Standards: Review WCAG guidelines and Section 508 requirements, and be prepared to discuss how you implement them.

• AI Tool Usage: Be ready to discuss your experience using AI tools for productivity, and more importantly, how you ensure the quality and accuracy of AI-assisted output.

📝 Enhancement Note: The interview process is designed to rigorously assess both the design sensibility and the engineering capability of the candidate. The portfolio review is a critical component, and candidates should prepare to defend their design and technical decisions with clear rationale and evidence of impact. The emphasis on AI tool usage with accountability is a key differentiator to prepare for.

🛠 Tools & Technology Stack

Primary Tools:

• Design & Prototyping: Figma (required fluency), Adobe XD, Photoshop, Illustrator (familiarity).

• Frontend Frameworks: React, Angular (hands-on experience in at least one).

• Core Web Technologies: HTML5, CSS3, SCSS (expert, hand-coded proficiency), Bootstrap.

• Version Control: Git.

• AI-Assisted Development: Claude, ChatGPT, Copilot, or similar tools.

Analytics & Reporting:

• Web analytics platforms (e.g., Google Analytics, Adobe Analytics) for tracking user behavior and validating design decisions.

• A/B testing tools (e.g., Optimizely, VWO) for experimental design validation. CRM & Automation:

• While not directly client-facing CRM, understanding how frontend applications integrate with backend systems and data sources is crucial.

• Familiarity with CI/CD pipelines for deploying frontend applications.

📝 Enhancement Note: The technology stack is modern and focused on enterprise-level web development. Proficiency in Figma and at least one major JavaScript framework (React/Angular) is non-negotiable. The explicit mention of AI tools highlights their integration into the daily workflow.

👥 Team Culture & Values

Operations Values:

• Innovation & Excellence: Driving forward with cutting-edge AI technology and delivering high-quality, performant solutions.

• User-Centricity: Prioritizing the user experience in all design and development efforts, ensuring intuitive and effective interfaces.

• Accountability & Ownership: Taking responsibility for all deliverables, especially when utilizing AI tools, ensuring accuracy and adherence to standards.

• Collaboration: Working effectively with cross-functional teams to achieve shared goals, valuing diverse perspectives.

• Continuous Improvement: Embracing learning, adapting to new technologies, and refining processes for greater efficiency and effectiveness.

Collaboration Style:

• Cross-functional Integration: Seamlessly working with product managers, backend engineers, and AI specialists to align on requirements and technical execution.

• Open Communication: Fostering an environment where feedback is readily shared and constructive criticism is welcomed during design reviews and code reviews.

• Knowledge Sharing: Actively participating in sharing best practices, design patterns, and technical solutions within the team and wider organization.

• Agile Mindset: Embracing iterative development, flexibility, and a proactive approach to problem-solving within a team-oriented framework.

📝 Enhancement Note: The company's culture appears to be driven by innovation, technical rigor, and a strong sense of responsibility, particularly concerning the use of AI. A collaborative and user-focused approach is essential for success in this environment.

⚡ Challenges & Growth Opportunities

Challenges:

• Balancing Design and Development: Effectively managing the dual demands of creating aesthetically pleasing, user-friendly designs and implementing them with robust, performant code.

• AI Output Verification: Ensuring the accuracy, completeness, and compliance of AI-assisted work, maintaining high quality standards despite rapid generation.

• Enterprise-Scale Complexity: Developing solutions that are scalable, secure, and maintainable for enterprise-level applications and diverse deployment environments (SaaS, Cloud, On-Premises).

• Keeping Pace with Technology: Continuously learning and adapting to evolving UI/UX trends, frontend technologies, and AI advancements.

Learning & Development Opportunities:

• Advanced Frontend Techniques: Opportunities to explore and implement new patterns and optimizations in React/Angular.

• Design System Mastery: Deepening expertise in building and scaling design systems for complex product suites.

• AI in Design/Dev: Gaining deeper practical experience and strategic insights into integrating AI tools effectively and ethically into workflows.

• Accessibility Expertise: Becoming a subject matter expert in digital accessibility standards and best practices.

• Cross-Disciplinary Growth: Learning from backend and AI/ML teams to gain a more holistic understanding of the platform.

📝 Enhancement Note: The primary challenges revolve around the integration of cutting-edge technology (AI) with established best practices in design and engineering, and the need for rigorous quality assurance. Growth opportunities are geared towards deepening expertise in core areas and expanding into adjacent technical domains.

💡 Interview Preparation

Strategy Questions:

• "Describe a complex UI/UX challenge you faced on a previous project and how you approached it, from initial concept to final implementation. What was the outcome?" (Focus on demonstrating your end-to-end process, problem-solving skills, and quantifiable results.)

• "How do you ensure consistency and maintainability in your frontend code and UI designs across a large-scale application? Discuss your experience with design systems and coding standards." (Prepare to discuss your approach to building and using design systems, and your coding best practices.)

• "Discuss your experience using AI tools like ChatGPT or Copilot in your design or development workflow. How do you ensure the quality and accuracy of AI-generated output, and what is your approach to accountability for these deliverables?" (Be prepared to articulate your practical experience and your philosophy on AI-assisted work and ownership.) Company & Culture Questions:

• "What interests you about VIDIZMO and our AI-Powered Intelligence Hub? How do you see your skills contributing to our mission?" (Research VIDIZMO's products, technologies, and market position.)

• "Describe a time you had to collaborate with a difficult stakeholder or resolve a conflict within a team. How did you handle it?" (Focus on communication, empathy, and problem-solving within a team context.)

• "How do you stay updated with the latest trends in UI/UX design and frontend engineering?" (Showcase your commitment to continuous learning and industry awareness.) Portfolio Presentation Strategy:

• Structure Your Narrative: For each portfolio piece, present a clear story: Problem -> Your Role -> Process -> Solution -> Outcome/Impact.

• Emphasize Dual Skills: Clearly differentiate and highlight your contributions in both design (wireframes, research, UX flow) and development (code quality, framework usage, performance).

• Showcase Design System Thinking: If applicable, present how you approach creating or using design systems for consistency and efficiency.

• Demonstrate AI Integration: Briefly mention how AI tools supported your work on specific projects, focusing on efficiency gains while emphasizing your review and validation process.

• Quantify Impact: Use metrics to demonstrate the business value or user impact of your work. Be ready to discuss how you measured this.

• Be Prepared for Technical Deep Dives: Anticipate questions about specific code implementations, design decisions, or accessibility challenges.

📝 Enhancement Note: The interview preparation should focus on demonstrating a strong understanding of both design principles and engineering execution, coupled with a mature approach to AI tool usage and professional collaboration. The portfolio is your primary tool for showcasing this dual expertise.

📌 Application Steps

To apply for this Principal UI UX Engineer position:

• Submit your application through the provided link on the VIDIZMO careers page.

• Tailor Your Resume: Highlight experience in UI/UX design, frontend development (React/Angular, HTML5/CSS3/SCSS), accessibility (WCAG/Section 508), and your experience with design systems. Quantify achievements with metrics where possible.

• Curate Your Portfolio: Ensure your portfolio prominently features projects demonstrating end-to-end ownership, showcasing both design artifacts (wireframes, prototypes) and implemented code. Clearly articulate your role and the impact of your work.

• Prepare for Technical Screens: Brush up on JavaScript fundamentals, your primary framework (React/Angular), HTML5, CSS3/SCSS, and common UI/UX challenges.

• Research VIDIZMO: Understand their AI-powered platform, target markets, and recent developments to tailor your responses and demonstrate genuine interest. Be ready to discuss how you'd approach design and development within their specific context.

• Practice Your Presentation: Rehearse walking through your portfolio, focusing on clear storytelling, articulating your design and technical decisions, and demonstrating your approach to AI-assisted work and accountability.

⚠️ 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.