Full Stack Lead Developer - UI

📍 Job Overview

Job Title: Full Stack Lead Developer - UI Company: Capgemini Location: St. Louis, Missouri, United States Job Type: Full-time Category: Software Development / Technology Leadership Date Posted: August 25, 2025 Experience Level: Mid-Senior Level (5-10 years implied) Remote Status: On-site

🚀 Role Summary

• This role requires a seasoned Full Stack Lead Developer with a strong emphasis on User Interface (UI) development and team leadership.
• The position involves providing technical guidance to development teams and ensuring successful project delivery within an Agile framework.
• Key responsibilities include contributing to front-end development, understanding back-end middleware, and implementing automated UI testing strategies.
• The role requires a proactive individual capable of acting as a technical mentor and potentially supporting Scrum Master duties.

📝 Enhancement Note: While the title specifies "UI," the responsibilities and skills indicate a full-stack capacity, particularly with NodeJS/Express JS. The "Lead" aspect implies mentorship, delivery ownership, and technical direction. The "5-10 years" experience level is inferred from the "Lead" title and the breadth of technologies expected.

📈 Primary Responsibilities

• Lead and mentor a team of developers, providing technical direction and ensuring adherence to best practices in UI and full-stack development.
• Drive the technical delivery of projects, ensuring timely completion and high-quality output within Agile/Scrum environments.
• Develop and implement robust front-end solutions using JavaScript (ES5/ES6) and frameworks like React JS.
• Design and develop back-end middleware using NodeJS/Express JS to support front-end applications.
• Implement and maintain end-to-end automated UI testing strategies using tools like WebDriver IO, Mocha, and Chai.
• Collaborate with cross-functional teams, including product managers, designers, and other engineers, to define and deliver features.
• Actively participate in Agile ceremonies, potentially fulfilling Scrum Master responsibilities to facilitate team processes and remove impediments.
• Utilize Web UI Development Tools and debugging tools to troubleshoot and resolve technical issues.
• Ensure seamless integration with RESTful APIs for data exchange and application functionality.

📝 Enhancement Note: The responsibilities are synthesized from the "About the job," "Your role," and "Your skills and experience" sections, focusing on the leadership, technical execution, and process aspects expected of a Lead Developer in an operations-adjacent technology role.

🎓 Skills & Qualifications

Education: While not explicitly stated, a Bachelor's degree in Computer Science, Engineering, or a related field is typically expected for a Lead Developer role. Equivalent practical experience may also be considered.

Experience: Minimum of 5-10 years of progressive experience in full-stack development, with a significant focus on front-end technologies and team leadership.

Required Skills:

• JavaScript (ES5/ES6): Strong proficiency in modern JavaScript for both front-end and back-end development.
• Team Leadership: Proven experience leading development teams, guiding technical decisions, and managing delivery.
• Agile Methodologies: Solid working experience with Agile frameworks, including Scrum and Kanban.
• Web UI Development Tools: Proficiency in using browser developer tools and debugging tools for efficient development and troubleshooting.
• REST API: Solid understanding and practical experience working with RESTful APIs.
• NodeJS/Express JS: Experience building server-side applications and middleware using NodeJS and the Express JS framework.
• Automated UI Testing: Hands-on experience in building and executing end-to-end automated UI tests.
• Testing Frameworks: Experience with Mocha, Chai, or similar JavaScript testing frameworks.
• WebDriver IO: Practical experience using WebDriver IO for automated UI testing.
• Single Page Applications (SPAs): Experience in building SPAs with JavaScript.

Preferred Skills:

• React JS: Exposure to or experience with React JS for front-end development.
• Scrum Master Experience: Experience or willingness to take on Scrum Master responsibilities.
• Cloud Platforms: Familiarity with cloud environments (AWS, Azure, GCP) for deployment and infrastructure management.
• CI/CD: Understanding of Continuous Integration and Continuous Deployment pipelines.
• Version Control: Proficiency with Git and Git workflows.

📝 Enhancement Note: The required skills are directly extracted from the job description. Preferred skills are common additions for lead roles in this domain, enhancing the candidate's profile for a leadership position, aligning with the "Full Stack Lead Developer" title.

📊 Process & Systems Portfolio Requirements

Portfolio Essentials:

• Demonstrate end-to-end project examples showcasing full-stack development capabilities, from UI to API integration.
• Highlight contributions to team leadership, technical guidance, and successful project delivery.
• Provide examples of implemented automated UI testing strategies and their impact on code quality and release cycles.
• Showcase experience with JavaScript, NodeJS/Express JS, and any exposure to React JS.
• Include examples of working with REST APIs and integrating different system components.

Process Documentation:

• Document key processes followed in previous projects, such as agile development workflows, code review practices, and testing methodologies.
• Illustrate how processes were optimized for efficiency and quality, particularly in UI development and automated testing.
• Provide examples of how technical challenges were approached and resolved, demonstrating problem-solving and process improvement skills.

📝 Enhancement Note: Portfolio requirements are inferred based on the "Lead Developer" title and the expected technical proficiencies. The focus is on demonstrating leadership, full-stack execution, and process optimization within a development context, crucial for operations-adjacent roles that value efficiency and structured approaches.

💵 Compensation & Benefits

Salary Range: For a Full Stack Lead Developer with 5-10 years of experience in St. Louis, MO, the estimated annual salary range is typically between $110,000 and $150,000. This range can vary based on specific skills, the depth of leadership experience, and the exact nature of the projects involved.

Benefits:

• Flexible Work: Options for flexible work arrangements.
• Comprehensive Healthcare: Includes dental, vision, mental health support, and broader well-being programs.
• Financial Well-being: Programs such as 401(k) retirement plans and Employee Share Ownership Plans.
• Paid Time Off: Generous paid time off and paid holidays.
• Family Support: Paid parental leave, adoption assistance, surrogacy support, and cryopreservation benefits.
• Social Well-being: Subsidized back-up child/elder care, tutoring services.
• Professional Development: Mentoring, coaching, and extensive learning programs.
• Community & Support: Access to Employee Resource Groups and disaster relief assistance.

Working Hours: The standard working hours are typically 40 hours per week, aligned with full-time employment. Flexibility might be available, but the core expectation is consistent engagement.

📝 Enhancement Note: The salary range is an estimate based on typical industry benchmarks for a Lead Developer role in St. Louis, MO, considering the experience level and technical stack. The benefits listed are directly from the provided company information and are comprehensive, reflecting a strong employee support system.

🎯 Team & Company Context

🏢 Company Culture

Industry: Information Technology and Services, Consulting. Capgemini is a global leader in technology transformation, offering a wide range of services from strategy and design to engineering, cloud, data, and AI.

Company Size: Capgemini is a very large global enterprise, with around 340,000 team members in over 50 countries. This scale offers opportunities for diverse projects, extensive learning, and career mobility.

Founded: Capgemini has a heritage of over 55 years, founded in 1967. This long history signifies stability, deep industry experience, and a well-established approach to client service and technology solutions.

Team Structure:

• This role is likely within a project-based or client-focused delivery team, common in consulting environments like Capgemini.
• The team structure will likely involve a mix of developers, testers, project managers, and potentially business analysts, all working towards client objectives.
• As a Lead Developer, this individual will report to a project lead, technical manager, or program manager, and will directly guide a group of developers.

Methodology:

• Capgemini emphasizes Agile methodologies, with a focus on client collaboration and iterative development.
• Data-driven decision-making and continuous improvement are core to their approach, aligning with operations best practices.
• Automation is a key driver for efficiency and quality across their service offerings.

Company Website: www.capgemini.com

📝 Enhancement Note: The company context is derived from the provided "About Capgemini" section, highlighting its global reach, long history, and service-oriented model. The team structure and methodology are standard for large IT consulting firms and are inferred to provide relevant context for a Lead Developer role.

📈 Career & Growth Analysis

Operations Career Level: This role represents a mid-to-senior level position in a technical career path, specifically a Lead Developer. It signifies a transition from individual contribution to technical leadership and team guidance.

Reporting Structure: The Full Stack Lead Developer will typically report to a Project Manager, Delivery Manager, or a more senior technical architect within Capgemini's project delivery framework. They will directly lead a team of front-end and potentially back-end developers.

Operations Impact: In a consulting firm like Capgemini, the impact of a Lead Developer is significant. They directly influence the quality, efficiency, and success of client projects, which translates to client satisfaction, repeatable business, and revenue for Capgemini. Their technical leadership ensures that solutions are robust, scalable, and meet client business objectives, indirectly supporting operational efficiency for clients.

Growth Opportunities:

• Technical Specialization: Deepen expertise in specific front-end frameworks (like React JS) or back-end technologies (NodeJS) or explore full-stack architecture.
• Leadership Advancement: Progress to roles such as Technical Architect, Solution Architect, Engineering Manager, or Program Manager.
• Cross-functional Skills: Develop skills in project management, client relationship management, and pre-sales technical consulting.
• Learning & Development: Leverage Capgemini's extensive learning platforms for certifications, new technology adoption, and leadership training.

📝 Enhancement Note: The career analysis focuses on the progression and impact typical for a Lead Developer in a consulting environment, emphasizing the blend of technical and leadership growth. The "operations impact" is framed in terms of client project success and business value realization, relevant to operations professionals.

🌐 Work Environment

Office Type: This is an on-site role, likely within a modern office setting typical of a large IT consulting firm. The environment is expected to be collaborative, professional, and equipped with the necessary technology infrastructure.

Office Location(s): The primary location is St. Louis, Missouri. Capgemini may have multiple offices in larger metropolitan areas; however, this specific role is tied to the St. Louis presence.

Workspace Context:

• Collaborative Environment: Expect a dynamic workspace designed for team interaction, client meetings, and focused individual work.
• Technology Access: Access to high-speed internet, modern workstations, and relevant development tools and software.
• Team Interaction: Opportunities for regular interaction with team members, project stakeholders, and potentially clients, fostering a culture of shared learning and problem-solving.

Work Schedule: The standard work schedule is likely Monday to Friday, with a typical 40-hour work week. While the role is on-site, Capgemini's "Flexible Work" benefit suggests potential for some flexibility in daily hours or work arrangements, though core business needs and project deadlines will dictate presence and availability.

📝 Enhancement Note: The work environment description is based on common practices for large IT consulting firms and the "on-site" designation. The emphasis is on collaboration and the professional setting expected in such an organization.

📄 Application & Portfolio Review Process

Interview Process:

• Initial Screening: A recruiter or HR representative will likely conduct an initial screening to assess basic qualifications and cultural fit.
• Technical Interview(s): Expect one or more technical interviews focusing on JavaScript, NodeJS, React JS, API integration, and automated testing concepts. These may include coding challenges or system design discussions.
• Lead/Manager Interview: An interview with the hiring manager or a senior technical lead to discuss leadership experience, team management approach, project delivery methodologies, and strategic thinking.
• Behavioral/Cultural Fit Interview: An assessment of how the candidate aligns with Capgemini's values, culture, and collaborative style.
• Potential Final Round: A final interview with a senior stakeholder or client representative, depending on the project.

Portfolio Review Tips:

• Showcase Leadership: Clearly articulate your role in leading development efforts, mentoring team members, and driving project success.
• Demonstrate Full-Stack Skills: Present projects that highlight your ability to work across the stack, from UI implementation to back-end services and API integrations.
• Highlight Automation: Provide specific examples of automated UI testing implementations, detailing the tools used (WebDriver IO, Mocha, Chai) and the impact on quality and efficiency.
• Quantify Impact: Use metrics to demonstrate the positive outcomes of your work, such as performance improvements, reduction in bugs, or faster delivery cycles.
• Structure Clearly: Organize your portfolio with clear descriptions of each project, your specific contributions, and the technologies/processes used.

Challenge Preparation:

• Coding Challenges: Be prepared for live coding exercises focusing on JavaScript, data structures, algorithms, and potentially Node.js. Practice building small components or solving logic problems.
• System Design: For a Lead role, expect questions about designing scalable and maintainable applications, API strategies, and testing architectures.
• Agile/Scrum Scenarios: Prepare to discuss your experience with Agile methodologies, how you've handled team impediments, and your approach to Scrum Master duties if applicable.
• Technical Problem-Solving: Be ready to discuss how you approach debugging complex issues in a full-stack environment.

📝 Enhancement Note: The interview process and preparation advice are tailored for a Lead Developer role in a consulting firm, emphasizing technical depth, leadership, process adherence, and the importance of a well-structured portfolio.

🛠 Tools & Technology Stack

Primary Tools:

• JavaScript (ES5/ES6): The core language for both front-end and back-end development.
• NodeJS/Express JS: Essential for building server-side applications and APIs.
• React JS: Exposure or experience with this popular front-end library is a plus.
• HTML/CSS: Fundamental for front-end development.
• Git: For version control and collaborative development workflows.

Analytics & Reporting:

• Web UI Dev Tools/Debugging Tools: Chrome DevTools, Firefox Developer Tools, etc., for front-end analysis and debugging.
• Testing Frameworks: Mocha, Chai for unit/integration testing.
• WebDriver IO: For end-to-end automated UI testing.

CRM & Automation:

• While not directly mentioned, large organizations like Capgemini utilize various internal systems for project management, HR, and client relationship management (e.g., Jira, Confluence, Salesforce). Familiarity with such enterprise systems is beneficial.
• CI/CD Tools: Experience with Jenkins, GitLab CI, or similar for automated builds and deployments would be advantageous.

📝 Enhancement Note: The tools and technology stack are derived directly from the "skills and experience" section, with common additions for a full-stack lead role in a modern tech environment.

👥 Team Culture & Values

Operations Values:

• Client Focus: A strong emphasis on delivering value and solutions that meet client business objectives, reflecting a service-oriented approach.
• Excellence & Quality: A commitment to high standards in code, design, and project delivery, driven by continuous improvement.
• Innovation: Encouraging new ideas and the adoption of modern technologies to solve complex problems.
• Collaboration & Teamwork: Fostering an environment where team members support each other, share knowledge, and work collectively towards common goals.
• Integrity: Upholding ethical standards in all business dealings and client interactions.

Collaboration Style:

• Cross-functional Integration: Expect to work closely with diverse teams, including project managers, business analysts, designers, and other engineers, requiring strong communication and integration skills.
• Process Review: A culture that encourages open feedback on processes and methodologies to identify areas for improvement and optimization.
• Knowledge Sharing: Opportunities to share expertise through internal forums, code reviews, and mentoring, contributing to a learning organization.

📝 Enhancement Note: Capgemini's values and collaboration style are inferred from their corporate identity as a global IT consulting firm, emphasizing client service, technical expertise, and teamwork.

⚡ Challenges & Growth Opportunities

Challenges:

• Managing Diverse Projects: Adapting to various client needs, project scopes, and technology stacks within a consulting framework.
• Leading Distributed Teams: Effectively guiding and motivating team members who may have different skill levels or work in different locations, even within an on-site context.
• Keeping Pace with Technology: Continuously learning and adapting to new technologies and evolving industry best practices in front-end and back-end development.
• Balancing Client Demands with Best Practices: Ensuring that project timelines and client requirements are met while maintaining high technical standards and team well-being.

Learning & Development Opportunities:

• Formal Training Programs: Access to Capgemini's extensive internal learning resources, including courses, certifications, and workshops.
• Mentorship: Opportunities to be mentored by senior leaders and to mentor junior developers, enhancing leadership and teaching skills.
• Industry Exposure: Working on a variety of client projects provides exposure to different industries, business challenges, and technological solutions.
• Skill Specialization: The chance to deepen expertise in specific areas of full-stack development or explore new technological domains.

📝 Enhancement Note: Challenges and growth opportunities are framed to be relevant to a Lead Developer role in a large consulting organization, focusing on adaptability, continuous learning, and leadership development.

💡 Interview Preparation

Strategy Questions:

• Technical Strategy: "How would you approach designing a scalable, responsive UI for a complex web application? What considerations would you make for performance and accessibility?" (Focus on architecture, component design, and testing)
• Team Leadership & Process: "Describe a time you had to guide a team through a difficult technical challenge. What was your approach, and what was the outcome?" or "How do you ensure your team adheres to Agile principles and delivers high-quality code consistently?" (Highlight leadership, problem-solving, and process management)
• Problem-Solving: "Imagine a critical bug is found in production affecting user experience. Walk me through how you would diagnose, prioritize, and resolve this issue as a lead developer." (Demonstrate analytical skills and structured approach)

Company & Culture Questions:

• "What do you know about Capgemini's approach to digital transformation and client service?" (Research Capgemini's mission and values)
• "How do you foster collaboration and knowledge sharing within a development team?" (Align answers with Capgemini's collaborative culture)
• "How do you measure the success of a development project and the impact of your team's work?" (Focus on metrics, client satisfaction, and business outcomes)

Portfolio Presentation Strategy:

• Structure: Start with a high-level overview of your career, then dive into 2-3 key projects. For each project, clearly state the problem, your solution, your specific role (especially leadership), the technologies used, and the quantifiable results.
• Demonstrate Leadership: For lead roles, explicitly call out instances where you mentored, guided technical decisions, or managed delivery.
• Highlight Process: Show how you applied Agile principles, implemented testing strategies, and improved development workflows.
• Conciseness: Be prepared to present your portfolio within a limited timeframe, focusing on the most impactful examples. Practice your narrative to be clear and engaging.

📝 Enhancement Note: Interview preparation advice is designed to help candidates showcase their technical expertise, leadership capabilities, and cultural fit for a Lead Developer role at a major consulting firm like Capgemini.

📌 Application Steps

To apply for this Full Stack Lead Developer position:

• Submit your application through the provided Capgemini careers portal link.
• Portfolio Customization: Tailor your resume and any supplementary portfolio materials to highlight your JavaScript, NodeJS/Express JS, Agile, and team leadership experience. Emphasize projects where you've implemented automated UI testing.
• Resume Optimization: Ensure your resume clearly details your years of experience, specific technical skills (especially those listed as required), and any leadership accomplishments. Use keywords from the job description.
• Interview Preparation: Practice answering common technical and behavioral questions. Be ready to walk through your portfolio projects, focusing on your role, the challenges, and the outcomes. Prepare specific examples demonstrating your leadership and problem-solving skills.
• Company Research: Familiarize yourself with Capgemini's services, values, and recent news. Understand their approach to technology transformation and client engagement to better articulate your fit.

⚠️ 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.

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