AI-native, all-in-one Transportation Management System (TMS) for modern trucking operations. The platform helps carriers, brokers, hybrid operators, private fleets, and enterprise teams manage the full workflow — from dispatch and delivery to invoicing and financial visibility — all in one place.The product is already operating at scale: used by 1,000+ companies, processing $1.9B+ in freight volume annually, with a very fast product iteration cycle (hundreds of product updates per year).The system is designed to integrate seamlessly with the broader trucking ecosystem, including ELDs, factoring, fuel and toll providers, payroll systems, email, load boards, BI/data tools, and more. It supports 160+ integrations, as well as APIs and webhooks for custom connectivity.Work environment: fast-growing startup, high ownership, tight feedback loops, and a strong expectation of end-to-end responsibility — from identifying problems to shipping real outcomes, not just completing tasks.The RoleWe need a Senior Backend Engineer who can architect scalable systems, write clean Python code, and move from idea to production fast. You'll have significant autonomy and impact.What You'll DoDesign, build, and maintain backend services and APIs that power our platformOwn features end-to-end: from system design to deployment to monitoringMake architectural decisions that balance speed with scalabilityWrite clean, testable, maintainable code with proper documentationCollaborate with frontend engineers, product, and other stakeholdersParticipate in code reviews and mentor junior engineersHelp shape our engineering culture and best practicesWhat We're Looking For3+ years of backend development experience with Python as your primary languageStrong experience with web frameworks (FastAPI, Django, Flask)Proficiency with databases (PostgreSQL, Redis, etc.) and data modelingExperience building and consuming RESTful APIs and/or GraphQLComfortable with cloud platforms (AWS, GCP, or Azure)Understanding of system design, scalability, and performance optimizationExperience with CI/CD, testing, and monitoring toolsBonus PointsExperience with microservices architectureBackground in distributed systems or data-intensive applicationsContributions to open source projectsPrevious startup experience