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CargoSprint

Principal Python Engineer

CargoSprint

Senior Python Engineer designing and maintaining backend services for cargo industry. Collaborating with a small, senior team in a high-ownership, startup-like environment.

Posted 4/16/2026full-timeRemote • 🇺🇸 United StatesLeadWebsite

Tech Stack

Tools & technologies
PostgresPython

About the role

Key responsibilities & impact
  • 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

Requirements

What you’ll need
  • 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
  • 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

Benefits

Comp & perks
  • 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

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills & Tools
PythonPostgresFastAPITemporalunit testingdatabase designquery optimizationDevOpsCI/CDproduction-grade systems
Soft Skills
communication skillsself-managementownershipbuilder mindsetcritical thinkingsystems thinking