About Mobi.AI Mobi.AI is a leading AI platform and solution provider born from MIT's Computer Science and Artificial Intelligence Lab specializing in building collaborative AI systems that solve complex business challenges in travel transportation and process automation. With a proven track record of transforming customer experiences and business operations for global brands Mobi has brought cutting-edge AI technology from research to real-world applications. Working at Mobi We believe the best ideas emerge when diverse perspectives come together so we’re building a team that truly reflects that belief. If you’re energized by complex challenges inspired by working alongside thoughtful teammates and passionate about building technology that enhances—rather than replaces—what makes us human you’ll feel right at home here. Our work is centered on five core values Show up be you . We welcome every kind of thinker maker and teammate quiet or bold methodical or messy with all their talents and quirks. Inclusion isn’t a checkbox—it’s how we connect grow together and do our best work. Be scrappy stay steady. We’re resilient and quick on our feet adapting with creativity and staying grounded when things shift. Create transparency collaborate better. We believe knowledge grows when it’s shared. Clear open communication builds trust and strengthens collaboration. Foster community be compassionate. We show up for our teammates customers and neighbors. Strong businesses grow from relationships built with care and grounded in shared effort. Build thoughtfully create impact. We design for clarity build for scale and measure success through real-world impact. About the Role As a Senior Frontend Engineer at Mobi you will join a highly creative fast-paced and fearless team tasked with building the next generation of AI-driven solutions. We’re seeking a passionate and innovative Frontend Engineer to help define the next generation of intelligent customer experiences at the intersection of travel and AI. In this role you’ll build elegant highly interactive user interfaces that power AI-driven search and recommendation systems virtual concierge services and data-rich dashboards for analytics and visualization. You’ll collaborate closely with clients and cross-functional teams to translate user needs into beautiful intuitive digital experiences — from concept through delivery. You’ll be working on cutting-edge products that integrate with state-of-the-art AI platforms including interactive AI assistants and app integrations based on the Model Context Protocol (MCP). This includes helping define how users interact with models and immersive AI interfaces beyond plain text — building experiences that connect ChatGPT Claude and other AI platforms to brand ecosystems with rich responsive visual UIs rather than just conventional text responses. MCP Apps a new extension of the MCP standard enables real-time interactive components within AI chat environments and you’ll help leverage this technology to create seamless useful tools for our customers. We work with major global brands and industry leaders to shape the search and concierge experience for their users. Some client engagements involve deep collaboration to understand unique requirements and deliver tailored solutions while others push the boundaries of what’s possible with evolving AI ecosystems. If you thrive at the intersection of bleeding-edge technologies customer engagement and beautifully designed front-end systems this is your opportunity to make a major impact. Key Responsibilities Develop test and maintain scalable front-end applications using modern frameworks and libraries (e.g. React). Translate UI/UX design wireframes and prototypes into high-quality responsive and accessible code. Collaborate with cross-functional teams to define design and ship new features. Optimize applications for maximum speed scalability and performance. Stay current with front-end trends tools and emerging AI technologies. Review code to troubleshoot debug and resolve issues. Own the full frontend lifecycle from development through testing and shipping while implementing best practices for code quality maintainability and comprehensive testing (unit integration and end-to-end). Qualifications Bachelor’s degree in Computer Science Engineering or related field—or equivalent practical experience. Proficiency in HTML5 CSS3 JavaScript (ES6+). Experience with React framework. Experience with TypeScript. Familiarity with testing frameworks (e.g. Playwright Jest Cypress). Experience and comfort using AI Tools (CodeX Claude Code Copilot etc.) to automate workflows Understanding of backend APIs and RESTful services. Understanding of responsive design principles and cross-browser compatibility. Experience with build tools and version control (e.g. Next Vite Git). Strong problem-solving skills and a collaborative mindset. Recent Experience working on AI Applications. Bonus Understanding of MCP and response streaming. Pay Transparency The base salary range for this US full-time position is between $140000- $200000 and is eligible for an annual company bonus subject to standard withholding and applicable taxes. All candidates receive equity (ISO) and access to a comprehensive benefits offering. The base salary range reflects the minimum and maximum targets for candidates. The following factors are considered when determining the compensation offered work location skills experience and any relevant education or training. The Recruiter or Hiring Manager can share more about the specific salary range with you during the recruitment process and answer any questions you have. Benefits & Perks Competitive Base Salary + Annual Bonus Comprehensive Health Insurance (Medical Dental and Vision) for you and your family covered mostly by the company. Company-paid Disability and Life Insurance Optional Pet Insurance and Identity Theft Protection Paid Parental Leave (for all types of parents and families) Equity ownership in the company 401k Plan Unlimited Paid Time Off + $1000 Bonus for taking five consecutive days off Flexibility to work anywhere in the world for one month a year Tuition Reimbursement Cell Phone & Transportation Reimbursement Lunch daily from local restaurants Cozy office environment with a full kitchen massage chairs live plants and much more! Mobi hires those willing to work either full-time in office or on a hybrid schedule. Equal Opportunity We are an equal opportunity employer applicants employees and former employees are protected from employment discrimination and harassment of any type based on race color religion sex (including pregnancy sexual orientation or gender identity) national origin age disability protected veteran status and genetic information (including family medical history) or any other characteristic protected by federal state or local laws.