About this opportunity
Mobi.AI lists this Senior Full Stack Engineer opportunity in somerville, Massachusetts. Review the employer’s description below for duties, qualifications and application requirements.
Job description
About Mobi.AI
Mobi partners with the world's leading travel brands to create AI experiences that change how people discover and book travel.
About Mobi.AI
Mobi partners with the world's leading travel brands to create AI experiences that change how people discover and book travel. By combining deep AI expertise with more than a decade of experience in travel commerce, Mobi helps travel brands understand what travelers want, deliver more relevant experiences, and convert AI-driven intent into direct bookings. Our technology connects the intelligence of AI with the realities of travel—integrating with the systems brands already use while creating new opportunities to engage customers throughout their journey. We're building the infrastructure that will power the next generation of travel commerce.
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 Full Stack Engineer, you’ll join a collaborative, highly creative, and fast-paced team to design and build cutting-edge web experiences and AI-driven solutions. You’ll play a key role as both architect and developer, shaping technologies that power Mobi’s portfolio of travel AI products —used by some of the world’s leading brands.
This is a hands-on role with the opportunity to work across the stack—from building intuitive product experiences to developing the APIs, services, and systems that power them. You’ll work closely with product, design, and other engineers to turn complex problems into simple, reliable experiences for our customers and their travelers.
Key Responsibilities
Develop, test, and maintain scalable MCP and agent applications using modern frameworks and libraries.
Build, maintain, and optimize APIs and infrastructure.
Collaborate with cross-functional teams to define, design, and ship new features.
Optimize applications for maximum speed, scalability, and performance.
Review code to troubleshoot, debug, and resolve issues; Implement best practices for code quality, testing, and maintainability.
Follow best practices for testing and evaluation of agent applications, including unit, integration, and end-to-end testing.
Stay current with trends, tools, and emerging technologies in the field of computer science and artificial intelligence.
Qualifications
Bachelor’s degree in Computer Science, Engineering, or related field—or equivalent practical experience.
Proficiency in Python.
Familiarity with testing frameworks (e.g., Jest, Cypress, Playwright).
Proficiency with backend APIs and RESTful services.
Experience with AWS compute and storage services (e.g. Lambda, DynamoDB).
Experience and comfort using AI Tools (CodeX, Claude Code, Copilot, etc.) to automate workflows.
Strong problem-solving skills and a collaborative mindset.
Understanding of MCP and Agent frameworks.
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 + $1,000 Bonus for taking five consecutive days off
Flexibility to work anywhere in the world for one month a year
Tuition Reimbursement
Cell Phone & Transportation ReimbursementLunch 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.
Pay Transparency
The base salary range for this US full-time position is $150,000-$190,000 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.
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Worksite address
somerville, MA, 02145, US
Who can apply
Review the original listing for work authorization, qualifications and employer requirements.