About CharterUP. CharterUP is transforming the $450+ billion group transportation and mobility market with an AI native platform that powers modern charter, shuttle, and emerging autonomous vehicle operations. Trusted by many Fortune 500 companies, CharterUP connects enterprises, institutions, and event organizers to thousands of bus operators nationwide, while increasingly serving as the operating system for large scale shuttle and transit programs across airports, campuses, industrial sites, and major events.
Through real time availability, transparent pricing, intelligent routing, and AI driven dispatch and optimization, CharterUP replaces a fragmented and opaque industry with automation, accountability, and scale.
Why Join Us
- Innovative Impact: Be part of the team that's revolutionizing group travel, setting new standards in an industry overdue for change.
- Growth Opportunities: As a hyper growth company and one of the fastest-growing companies recognized by Inc., there’s no better time to join our dynamic, growth-stage organization.
- Driven Team: Collaborate with some of the most driven minds in tech, all while working in a remote-first environment with a tech hub in Austin, TX.
- Funding and Stability: Our $60 million Series A funding was just the start—we’re poised for even greater expansion, and you can be part of this exciting journey. CharterUp has achieved this growth profitability and efficiently, ensuring long-term stability.
About the Role
CharterUP is seeking a Senior Software Engineer – Backend to design, build, and operate the APIs and backend systems that power our mobile experience for a two-sided marketplace. This role will work closely with our Brazil-based mobile team, as well as U.S.-based engineering, product, and design partners, to deliver reliable, scalable services that enable high-quality user experiences. You’ll focus on backend service development, API design, and system reliability, helping ensure our mobile applications are fast, resilient, and able to scale with our growing business.
Title: Senior Software Engineer - Backend
Reports to: Engineering Manager
Location: Brazil (Remote)
What You’ll Do
- Design, build, and operate scalable backend services and APIs for mobile applications, using modern and AI-assisted development practices
- Partner with mobile engineers to define API contracts and deliver seamless, high-performance user experiences
- Own service reliability, scalability, and performance, including deployment, monitoring, and optimization in AWS
- Drive backend best practices across testing, observability, and operational efficiency, leveraging AI-driven tooling where appropriate
- Collaborate cross-functionally to deliver high-impact features and identify opportunities to improve systems and workflows through AI
What You’ll Bring
- 4+ years of experience as a backend or full-stack engineer with a strong backend focus
- Proficiency in JVM-based languages (Java, Kotlin, etc.) and experience building scalable RESTful APIs
- Solid understanding of distributed systems, API design, and backend performance optimization
- Experience with cloud infrastructure (preferably AWS) and modern deployment practices, with exposure to AI-assisted tools for development, monitoring, or automation
- Strong ownership mindset and collaboration skills, with experience working closely with mobile or frontend teams in cross-functional environments
- Familiarity with the Backend-for-Frontend (BFF) pattern, including designing and maintaining mobile-optimized APIs that aggregate and tailor data for specific client use cases, improving performance and reducing client complexity
Recruiting Process
- Step 1 - Video call: Talent Acquisition interview
- Step 2 - Video call: Hiring Manager interview
- Step 3 - Video call: Team interviews
- Step 4 - Offer & reference check
- Welcome aboard!
Compensation
- Estimated monthly rate: $6,000 – $7,000 USD
We believe great people can live anywhere—and they deserve great benefits, too. While offerings may vary slightly by location, we prioritize hiring near our hubs in Austin, Atlanta, Miami, and Denver as we grow our global team.
- Remote-First Flexibility: Work from anywhere we hire, with built-in flexibility. U.S.-based employees may reside in any of our 19 approved states.
- Comprehensive Health & Wellness: Medical, dental, and vision insurance, mental health support, virtual care, gym discounts, and family-building benefits. In the U.S., we cover 100% of premiums for employees. International benefits align with local standards.
- Time Off to Recharge: Paid time off so you can truly unplug. U.S.: 15 PTO days (increasing to 20 after 2 years) + 8 paid holidays. International policies vary by country.
- Financial Peace of Mind: Company-paid life, short-term, and long-term disability insurance where available.
- Performance-Driven Culture: Join a fast-moving, ambitious, and collaborative team that wins together.
- Referral Rewards: Earn bonuses for bringing top talent to the team.
- Planning for the Future: Long-term financial planning support. U.S.: 401(k) plan. International: region-specific savings programs where applicable.
- Top-Tier Tech: Choose a Mac or PC, plus monitor, keyboard, and mouse to hit the ground running.
CharterUP is an Equal Opportunity Employer. We are committed to creating an inclusive, accessible, and respectful workplace. We consider all qualified applicants without regard to race, color, religion, sex, sexual orientation, gender identity or expression, age, national origin, ancestry, disability, medical condition, marital status, veteran status, or any other protected characteristic in accordance with applicable federal, state, and local laws in the United States and Canada. If you require accommodation during the recruitment process, please let us know. CharterUP is committed to providing reasonable accommodations during the hiring process. If you need assistance or an accommodation, please contact your recruiter.
Hiring Locations: CharterUP U.S.-based candidates and employees must reside in one of the following states: Arizona, California, Colorado, Florida, Georgia, Hawaii, Mississippi, Missouri, North Carolina, New Hampshire, Nevada, New York, Oklahoma, South Dakota, Tennessee, Texas, Utah, Washington, and Wyoming.
We hire in the U.S. and Canada and are actively expanding our global footprint.
Top Skills
What We Do
CharterUP is the world’s largest bus‑booking platform—an AI‑powered marketplace and operating system for group transit. We let organizations book vehicles in minutes with instant pricing, real‑time availability, and transparent operator selection across a vetted network of 500+ operators and 6,000+ vehicles in all 50 states and Canada. Customers manage trips end‑to‑end with Rider and Driver apps for live tracking, seat reservations, passenger management, and automated updates, and can license a white‑label solution to run ongoing shuttle programs under their own brand. From daily employee shuttles and campus routes to major events, construction logistics, and emergency response, CharterUP pairs nationwide scale with modern software to make complex transportation simple, reliable, and auditable.
Why Work With Us
CharterUP is the world’s largest bus‑booking platform - an AI‑powered, self‑serve marketplace and OS for group transit - uniting 500+ operators and 6,000+ vehicles across the U.S. & Canada. We move fast, give you ownership of outsized problems, and deliver. Help modernize an under‑innovated industry, win big with results, and grow at startup speed.
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