Principal Python Engineer at CargoSprint

United States

About You We’re looking for a senior, hands-on Python engineer who can take ideas from concept to production and own the full lifecycle along the way. You’ll design and architect backend services, build APIs, work deeply with databases, ensure quality through strong unit testing, and apply DevOps practices to deploy, monitor, and improve systems in production. This role is ideal for someone who thrives in startup-like environments, moves quickly, operates with a high degree of ownership, and already leverages AI to work faster and better. About the role You will design, architect, build, and evolve backend services that power critical parts of our platform. You should be comfortable turning ideas into reliable software that solves real user needs. You should care about shipping quickly, making sound technical decisions, measuring results, and improving over time in a high-ownership, high-autonomy environment. What you'll do Design, architect, build, and maintain backend services and APIs using Python, Postgres, FastAPI, and Temporal Design and optimize database solutions Write strong unit tests and help drive engineering quality Apply DevOps practices across CI/CD, deployment, monitoring, and reliability Take ideas from concept to production and continuously improve them Use AI to accelerate development and improve engineering productivity Troubleshoot production issues and implement durable fixes Qualifications General: Excellent communication skills in English Ability to self-manage and operate with limited oversight Strong ownership and a builder mindset Experience working in startup or high-growth environments A desire to deliver a great experience for the end user and the critical thinking skills to make it happen Strong systems thinking Technical Skills: Expert-level Python Experience designing and architecting backend systems and APIs Experience with FastAPI or similar backend frameworks Strong database design and query optimization skills Expertise in unit testing and code quality practices Experience building and supporting production-grade systems Solid understanding of DevOps concepts, including containers, deployment, monitoring, and reliability Our Stack Python, FastAPI, Temporal, Postgres Docker, Kubernetes, Pulumi Vue.js frontend What We Offer: Real ownership and meaningful impact A small, senior team that values quality and continuous improvement Respect for your work-life balance Competitive pay and benefits #LI-Remote Does this role sound like the next step in your career? We’d love to hear from you! If you don’t meet all of the requirements exactly, we encourage you to use your cover letter to tell us about your unique experience—talent comes from many places, and skills are transferable. Our Commitment to an Extraordinary Work Environment At CargoSprint, we value diversity and inclusivity. We strive to create a welcoming and supportive community for employees from all backgrounds. Regardless of your gender, sexual orientation, physical ability, religion, ethnicity, race, or age, you will find a place where you can thrive and be your authentic self. Our CargoSprint Recruitment Team personally reviews every application.