Product Designer & Frontend Lead

📍 Job Overview

Job Title: Product Designer & Frontend Lead

Company: Oesia Networks S L

Location: Rivas-Vaciamadrid, Barcelona, Bilbao, Cádiz, Murcia, Seville, Valladolid, Zaragoza (Spain)

Job Type: Full-time

Category: Product Design & Frontend Development (GTM Technology)

Date Posted: June 04, 2026

Experience Level: 5-10 years

Remote Status: Fully Remote

🚀 Role Summary

• Spearhead the product design and frontend development efforts for complex B2B enterprise solutions, driving user experience enhancements and technical architecture.

• Lead and mentor a team of frontend developers, fostering a culture of code quality, innovation, and adherence to design best practices.

• Own and evolve the design system, ensuring visual consistency and seamless user flows across a sophisticated platform.

• Collaborate closely with product management and backend teams to deliver cohesive, high-quality digital products.

• Contribute to the strategic direction of frontend architecture, including componentization, state management, and testing methodologies.

📝 Enhancement Note: This role, while titled "Product Designer & Frontend Lead," has significant implications for Go-To-Market (GTM) technology. The emphasis on B2B/enterprise complexity, UI simplification, and user experience directly impacts how Oesia Networks' digital products are perceived and utilized by its business clients, ultimately influencing sales cycles and customer adoption. The leadership aspect also suggests a strategic role in shaping the technological foundation of their offerings.

📈 Primary Responsibilities

• Design System Ownership: Define, maintain, and evolve the comprehensive design system, ensuring its scalability and adoption across all product interfaces.

• User Experience Optimization: Conduct thorough audits of existing user flows and interfaces, identifying opportunities for simplification, enhancement, and unification of visual language and interactions.

• Frontend Team Leadership: Provide technical leadership and mentorship to the frontend development team, fostering best practices in coding, testing, and performance optimization.

• Frontend Architecture Definition: Lead the definition and implementation of frontend architecture, including component strategy, state management patterns, testing frameworks, and overall code structure.

• Cross-Functional Collaboration: Work closely with Product Managers and Backend Engineers to ensure functional and technical alignment, facilitating smooth integration and delivery of features.

• UI/UX Strategy: Translate complex B2B/enterprise requirements into intuitive and efficient user interfaces, focusing on a clean, modern aesthetic and robust usability.

• Quality Assurance: Implement and enforce rigorous code quality standards and testing methodologies to ensure the stability, performance, and maintainability of the frontend codebase.

• Innovation & Best Practices: Stay abreast of emerging frontend technologies and design trends, advocating for their adoption where they align with business objectives and enhance user experience.

📝 Enhancement Note: The explicit mention of "Cipherbit-Grupo Oesía" and its focus on cybersecurity, secure communications, and serving defense, public administration, and critical infrastructure clients indicates that this role will likely involve designing and developing interfaces for highly sensitive and regulated applications. This implies a need for meticulous attention to detail, robust security considerations in design, and potentially compliance with specific industry standards.

🎓 Skills & Qualifications

Education:

• Bachelor's degree in Computer Science, Design, Human-Computer Interaction, or a related field, or equivalent practical experience. Experience:

• A minimum of 5 years of progressive experience in UI/UX design and frontend development, with a strong focus on B2B or enterprise-level complex applications.

• Proven experience in leading and mentoring frontend development teams, including architectural decision-making. Required Skills:

• UI/UX Design Expertise: Demonstrated ability to design intuitive and effective user interfaces for complex B2B/enterprise environments.

• Design Tool Proficiency: Expert-level command of design tools such as Figma and experience with implementing and managing design systems.

• Frontend Framework Mastery: Deep understanding and practical experience with modern JavaScript frameworks like React, Vue, or Angular, including their associated ecosystems (e.g., TypeScript, state management libraries, testing utilities).

• Architecture & Leadership: Proven ability to define and lead frontend architecture decisions and guide a development team.

• Portfolio: A strong portfolio showcasing successful simplification of complex interfaces and effective UI/UX solutions for enterprise applications.

• TypeScript Proficiency: Strong command of TypeScript for robust and maintainable code.

• State Management: Experience with various state management solutions within modern frontend frameworks.

• Testing Methodologies: Proficiency in implementing comprehensive testing strategies (unit, integration, end-to-end) for frontend applications.

Preferred Skills:

• Experience with cybersecurity platforms or secure communication product interfaces.

• Familiarity with Agile development methodologies and cross-functional team collaboration.

• Understanding of backend integration principles and API design.

• Experience in performance optimization for web applications.

• Knowledge of CI/CD pipelines for frontend deployments.

📝 Enhancement Note: Given the requirement for a portfolio demonstrating simplification of complex interfaces, candidates should be prepared to articulate their design process, problem-solving approaches, and the impact of their design decisions on user efficiency and business outcomes. Emphasis should be placed on how they translated intricate requirements into user-friendly solutions.

📊 Process & Systems Portfolio Requirements

Portfolio Essentials:

• Showcase at least 2-3 complex B2B/enterprise projects where you were instrumental in both design and frontend implementation.

• Clearly articulate the problem statement, your design process, and the technical challenges overcome.

• Provide detailed case studies demonstrating how you simplified complex user flows and interfaces, illustrating the "before" and "after."

• Highlight your experience in leading frontend teams and defining technical architecture, with examples of architectural decisions and their impact.

• Include examples of your work with design systems, demonstrating their creation, maintenance, or significant contribution to an existing one. Process Documentation:

• Be prepared to discuss your methodologies for defining and maintaining design systems, including version control and documentation practices.

• Articulate your approach to user research, usability testing, and iterative design for complex enterprise applications.

• Detail your strategies for ensuring code quality, implementing robust testing frameworks, and managing state effectively in large-scale frontend projects.

• Explain your process for collaborating with product and backend teams, ensuring technical and functional alignment throughout the development lifecycle.

📝 Enhancement Note: The portfolio should not just be a collection of screens but a narrative that explains the "why" behind the design and technical decisions. For this role, demonstrating how design and development leadership contributed to tangible business outcomes (e.g., improved user efficiency, reduced support costs, increased adoption rates for enterprise clients) will be highly valued.

💵 Compensation & Benefits

Salary Range:

• Based on Oesia Networks S L's global presence and the senior nature of this Product Designer & Frontend Lead role, coupled with the specialized skills in B2B UI/UX, frontend architecture, and team leadership, the estimated annual salary range for Spain is €55,000 - €80,000 gross per year. This estimate considers the cost of living in major Spanish cities and aligns with industry benchmarks for similar roles in technology companies. Benefits:

• Career Plan: Structured professional development and advancement opportunities within a growing multinational company.

• Free Access To Training Platforms: Extensive access to a wide range of multidisciplinary courses and learning resources to foster continuous skill development.

• Flexible Remuneration: Options for flexible compensation packages to suit individual needs.

• Positive and Healthy Work Environment: A collaborative, supportive, and cooperative atmosphere that prioritizes employee well-being.

• Innovative Projects: Opportunity to work on stable, cutting-edge technology projects for prominent national and international clients.

• Work-Life Balance: Fully remote work arrangement promoting flexibility and a better integration of professional and personal life.

• Social Responsibility: Contribution to a company with a strong commitment to diversity, equality, and corporate social responsibility.

Working Hours:

• Full-time, with an expected workload of approximately 40 hours per week. The fully remote nature of the role offers flexibility in scheduling, though core collaboration hours will likely be established.

📝 Enhancement Note: The salary range is an estimation for Spain. Actual compensation may vary based on specific experience, qualifications, and the candidate's location within Spain. The benefits package highlights a strong focus on professional growth and employee well-being, which are key attractors for senior technical talent.

🎯 Team & Company Context

🏢 Company Culture

Industry: Digital Engineering, Industrial Engineering (Dual Use), Cybersecurity, Secure Communications. Oesia Networks S L operates within a highly specialized sector, focusing on advanced digital solutions for defense, public administration, and critical infrastructure, with a strong emphasis on cybersecurity through its Cipherbit brand. This industry context demands a high level of technical rigor, security consciousness, and a commitment to innovation.

Company Size: Over 3,800 professionals across 20 corporate offices globally. This substantial size indicates a stable, established organization with the resources to undertake significant, long-term projects, offering a secure environment for career growth.

Founded: Grupo Oesía has a history of growth and development, positioning itself as a leader in digital and industrial engineering. The founding date implies a company with established processes and a proven track record in the market.

Team Structure:

• Operations Focus: The Product Designer & Frontend Lead will be part of a technology division, likely within the Cipherbit brand or a similar specialized unit, focusing on secure communications and cybersecurity solutions.

• Cross-Functional Integration: This role requires close collaboration with Product Management, Backend Engineering, and potentially specialized security and compliance teams.

• Leadership Hierarchy: The lead will manage a team of frontend developers and report to a higher-level technology or engineering manager, likely overseeing multiple product lines or specialized development areas.

Methodology:

• Agile Development: Expect a strong emphasis on Agile methodologies, facilitating rapid iteration, continuous feedback, and adaptability to evolving project requirements.

• Data-Driven Design & Development: Decision-making is likely influenced by user data, performance metrics, and security audit findings.

• Quality & Security First: A core tenet will be the unwavering focus on code quality, system reliability, and stringent security protocols, especially given the nature of the clients and products.

Company Website: talentgo.csod.com (Primary application portal, company details are based on the provided description)

📝 Enhancement Note: The company's dual-use engineering focus and its Cipherbit brand specializing in cybersecurity and secure communications mean that this role operates at the intersection of cutting-edge technology and national/strategic security. Candidates should be prepared for a professional environment that values precision, reliability, and a deep understanding of security implications.

📈 Career & Growth Analysis

Operations Career Level: This is a senior leadership role, bridging product design and technical frontend execution. It demands not only deep technical expertise but also strategic thinking, team management capabilities, and the ability to influence architectural decisions. It sits at a critical juncture, directly impacting product usability and technical foundation.

Reporting Structure: The Product Designer & Frontend Lead will likely report to a Head of Engineering, Director of Product Development, or a similar senior technology leadership position. They will, in turn, manage a team of frontend developers.

Operations Impact: The role's impact is significant, directly influencing the user experience of critical B2B/enterprise software, particularly in the cybersecurity and secure communications domains. Success here means delivering intuitive, secure, and high-performing interfaces that enhance client trust, streamline operations for Oesia Networks' clients, and support the company's strategic goals in national security and digital sovereignty.

Growth Opportunities:

• Technical Specialization: Deepen expertise in cybersecurity product design, secure coding practices, and advanced frontend architecture.

• Leadership Development: Transition into broader engineering management roles, potentially overseeing larger teams or multiple product areas.

• Strategic Product Influence: Contribute more significantly to product strategy, roadmap planning, and technology selection for new initiatives.

• Cross-Domain Expertise: Gain exposure to other areas of Oesia Networks' operations, such as industrial engineering or broader digital transformation projects.

• Industry Recognition: Work on projects that have national and international strategic importance, offering opportunities for professional recognition and thought leadership.

📝 Enhancement Note: The emphasis on "a company in continuous evolution and with a solid growth" suggests that career paths are dynamic. The role offers a blend of hands-on technical leadership and strategic input, making it ideal for professionals looking to grow both their technical depth and their influence within a specialized, high-impact technology sector.

🌐 Work Environment

Office Type: Fully Remote. This offers significant flexibility and autonomy, allowing professionals to work from any location.

Office Location(s): While the role is fully remote, Oesia Networks has offices across Spain (Rivas-Vaciamadrid, Barcelona, Bilbao, Cádiz, Murcia, Seville, Valladolid, Zaragoza), indicating a strong national presence. This distributed nature suggests a culture that is adaptable to remote work and distributed teams.

Workspace Context:

• Remote Collaboration Tools: Expect to utilize a robust suite of collaboration tools (e.g., Slack, Microsoft Teams, Jira, Confluence) for communication, project management, and knowledge sharing.

• Design & Development Tools: Access to industry-standard design software (Figma) and development environments will be provided or expected.

• Team Interaction: While remote, regular virtual team meetings, stand-ups, and design/code reviews will be crucial for maintaining alignment and fostering a cohesive team spirit.

Work Schedule: Full-time (approximately 40 hours/week) with a high degree of flexibility due to the remote nature. Core working hours may be established for effective team collaboration and client interaction, particularly across different time zones if applicable.

📝 Enhancement Note: The fully remote aspect is a significant draw, offering unparalleled flexibility. However, candidates should be proactive in communication and collaboration to ensure seamless integration with the remote team and stakeholders.

📄 Application & Portfolio Review Process

Interview Process:

1. Initial Screening: A recruiter or HR representative will assess your CV and initial application for basic qualifications and cultural fit.

2. Technical & Design Assessment: Expect an interview with hiring managers and potentially senior team members to discuss your experience in UI/UX, frontend development, and leadership. This may involve a technical deep dive into frameworks, architecture, and design principles.

3. Portfolio Presentation: You will be asked to present your portfolio, walking through key projects, explaining your design and development process, and highlighting your contributions and problem-solving approaches. Be prepared to discuss specific examples of simplifying complex interfaces and leading teams.

4. Case Study/Challenge: A practical exercise may be given, such as a design or coding challenge, to assess your problem-solving skills, technical proficiency, and ability to work under specific constraints.

5. Final Interview: A final conversation with senior leadership to discuss strategic alignment, long-term career goals, and cultural fit within Oesia Networks.

Portfolio Review Tips:

• Focus on Impact: Clearly articulate the business impact of your work, not just the aesthetic outcome. Quantify improvements where possible (e.g., "reduced user task completion time by X%," "streamlined onboarding process leading to Y% higher adoption").

• Showcase Leadership: For this role, explicitly demonstrate instances where you led a team, made architectural decisions, mentored junior members, or influenced project direction.

• Complexity is Key: Select projects that genuinely showcase your ability to handle complex B2B/enterprise requirements and simplify them effectively. Highlight the challenges and your innovative solutions.

• Design System Integration: If you have experience with design systems, show how you've implemented, contributed to, or managed them, and explain their benefits.

• Technical Depth: Be ready to discuss the technical choices behind your frontend work, including framework selection, state management strategies, and testing approaches.

Challenge Preparation:

• Understand the Context: If given a challenge, ensure you understand the B2B/enterprise context and the specific constraints (time, technology).

• Structure Your Approach: Outline your problem-solving methodology before diving in. For design challenges, think about user needs and business goals. For coding, focus on clean, maintainable, and efficient solutions.

• Communicate Your Process: Even if you don't complete everything, clearly articulate your thought process, decisions, and trade-offs. This is often as important as the final output.

📝 Enhancement Note: For this role, a strong understanding of how design decisions directly impact sales cycles and client adoption in a B2B context will be crucial. Be prepared to discuss how your UI/UX work contributes to Oesia Networks' go-to-market strategy for its cybersecurity and secure communications products.

🛠 Tools & Technology Stack

Primary Tools:

• Design: Figma (primary), potentially Sketch, Adobe Creative Suite.

• Frontend Frameworks: React, Vue, or Angular (mastery in at least one required).

• Languages: JavaScript, TypeScript (strong proficiency).

• State Management: Redux, Zustand, Vuex, Pinia, NgRx, or similar.

• Build Tools: Webpack, Vite, Parcel.

• Version Control: Git (GitHub, GitLab, Bitbucket).

Analytics & Reporting:

• Web Analytics: Google Analytics, Adobe Analytics (or similar for tracking user behavior on enterprise platforms).

• Performance Monitoring: Tools for monitoring frontend performance and identifying bottlenecks.

• Error Tracking: Sentry, Bugsnag, or similar for identifying and diagnosing runtime errors.

CRM & Automation:

• While not directly a CRM role, understanding how frontend applications integrate with backend systems and potentially customer data platforms (CDPs) or sales enablement tools can be beneficial.

• CI/CD: Familiarity with continuous integration and continuous deployment pipelines (e.g., Jenkins, GitLab CI, GitHub Actions) for automated testing and deployment.

📝 Enhancement Note: The emphasis on modern frameworks and TypeScript suggests a commitment to building scalable, maintainable, and high-quality applications. Proficiency in these areas is non-negotiable. Understanding the integration points between frontend and backend, especially concerning secure data handling, will be critical.

👥 Team Culture & Values

Operations Values:

• Excellence in Execution: A commitment to delivering high-quality, reliable, and secure digital products that meet stringent client requirements.

• Innovation & Continuous Improvement: A drive to explore new technologies and methodologies to enhance product capabilities and user experiences.

• Collaboration & Teamwork: A strong belief in the power of collective effort, open communication, and mutual support across diverse teams.

• Integrity & Responsibility: Upholding the highest ethical standards, particularly concerning data security and the critical nature of the clients served.

• User-Centricity: A dedication to understanding and addressing the needs of B2B/enterprise users, simplifying complex workflows to improve productivity and efficiency.

Collaboration Style:

• Proactive Communication: Encouraging open and frequent dialogue across design, development, product, and backend teams.

• Constructive Feedback: A culture where feedback is welcomed and used for continuous improvement, both at the individual and team level.

• Shared Ownership: Fostering a sense of collective responsibility for product success, from initial design to final deployment and maintenance.

• Cross-Pollination of Ideas: Encouraging knowledge sharing and collaboration between different technical disciplines.

📝 Enhancement Note: Given Oesia Networks' focus on national security and critical infrastructure, a culture that emphasizes trust, reliability, and a strong sense of purpose will be paramount. Team members should be comfortable working in a regulated environment where security and precision are non-negotiable.

⚡ Challenges & Growth Opportunities

Challenges:

• Simplifying Complexity: The primary challenge will be translating intricate B2B/enterprise requirements, particularly in cybersecurity and secure communications, into intuitive and user-friendly interfaces.

• Technical Debt Management: Balancing the need for rapid feature development with maintaining high code quality and managing technical debt in a complex codebase.

• Cross-Functional Alignment: Ensuring seamless communication and alignment between design, frontend, and backend teams, especially in a remote setting.

• Evolving Technology Landscape: Keeping pace with rapid advancements in frontend technologies and design principles while ensuring long-term maintainability and security.

• Security Integration: Incorporating robust security measures and best practices directly into the design and development process, adhering to potentially strict compliance standards.

Learning & Development Opportunities:

• Advanced Cybersecurity Design: Specializing in the unique design challenges and requirements of cybersecurity products.

• Frontend Architecture Leadership: Developing advanced skills in designing scalable, secure, and high-performance frontend architectures.

• Mentorship & Team Building: Growing leadership capabilities through managing and mentoring a talented frontend team.

• Industry Exposure: Gaining deep insights into the defense, public administration, and critical infrastructure sectors.

• Formal Training: Access to extensive training platforms for continuous upskilling in both technical and soft skills.

📝 Enhancement Note: The challenges presented are directly tied to the company's strategic focus. Successfully navigating these will provide significant opportunities for professional growth and make candidates highly valuable within specialized technology sectors.

💡 Interview Preparation

Strategy Questions:

• "Describe a time you had to simplify a highly complex B2B/enterprise user interface. What was your process, what were the challenges, and what was the outcome?"

• "How would you approach defining and evolving a design system for a cybersecurity product suite? What are the key considerations for such an environment?"

• "Walk us through your experience leading a frontend team. How do you ensure code quality, foster collaboration, and make architectural decisions?"

• "Discuss a challenging situation where you had to align design vision with technical constraints or backend limitations. How did you resolve it?"

• "What are your thoughts on the balance between rapid feature development and maintaining a clean, secure, and well-architected frontend codebase?" Company & Culture Questions:

• "Based on your understanding of our focus on cybersecurity and secure communications, what do you see as the primary design and development challenges for our products?"

• "How do you foster collaboration and maintain team cohesion in a fully remote environment?"

• "What aspects of Oesia Networks' mission or industry particularly resonate with you?" Portfolio Presentation Strategy:

• Narrative Flow: Structure your portfolio presentation as a story for each project: the problem, your approach, the solution, and the impact.

• Highlight Leadership: Explicitly point out where you led technical decisions, mentored team members, or influenced the product direction.

• Technical Deep Dive: Be ready to discuss the "why" behind your technical choices (frameworks, patterns, testing) and how they contribute to the project's success.

• Design System Showcase: If applicable, dedicate time to showcasing your design system work and its benefits.

• Conciseness: Respect time limits. Focus on the most impactful projects and accomplishments.

📝 Enhancement Note: Prepare to discuss how your design and development leadership contributes to Oesia Networks' competitive advantage in the B2B/enterprise cybersecurity and secure communications market. Emphasize your ability to deliver solutions that are not only user-friendly but also robust, secure, and compliant.

📌 Application Steps

To apply for this Product Designer & Frontend Lead position:

• Submit your application directly through the provided link on the talentgo.csod.com platform.

• Curate Your Portfolio: Select 2-3 of your most relevant B2B/enterprise projects that demonstrate your UI/UX simplification skills, frontend leadership, and architectural capabilities. Ensure each project clearly outlines the problem, your process, and the measurable impact.

• Tailor Your Resume: Highlight your experience with Figma, modern frontend frameworks (React, Vue, Angular), TypeScript, and team leadership. Quantify achievements wherever possible, particularly those related to improving user experience or streamlining complex processes.

• Prepare Your Presentation: Practice walking through your portfolio, focusing on your problem-solving methodology, design decisions, technical rationale, and leadership contributions. Be ready to articulate how your skills align with Oesia Networks' focus on cybersecurity and secure communications.

• Research Oesia Networks: Familiarize yourself with Grupo Oesía's mission, its Cipherbit brand, and its target markets (defense, public administration, critical infrastructure). Understand the importance of dual-use engineering and strategic autonomy in cybersecurity.

⚠️ 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.