System Test Automation Intern (Spring 2027)

Zipline; San Francisco (CA); On-site; USD 34,000 - 48,000; Full time

Job summary

Zipline is seeking a System Validation Intern to join our South San Francisco team for a Spring 2027 internship. You will contribute to testing Zipline’s Zip, Droid, and Dock systems in a hardware-in-the-loop framework, building automated pipelines and validating software prior to in‑flight testing.

Work closely with a multidisciplinary team to design validation plans, debug issues, and improve tools that stress test the system in off-nominal scenarios.

Qualifications

• Completed at least the second year of undergraduate studies.
• Familiar with building and executing test plans for software or hardware systems.
• Hands-on Python testing experience via Pytest or Unittest.

Responsibilities

• Assist in executing Hardware-in-the-Loop (HIL) tests and flight tests for Zipline’s Zip, Droid, and Dock systems.
• Develop and refine automated testing pipelines in a simulated environment.
• Analyze and troubleshoot issues uncovered during testing to improve system reliability.

Skills

Detail oriented

Linux

CI tooling

Python

Rust

Debugging

Root cause analysis

Problem solving

Education

Undergraduate sophomore status

Master’s or PhD eligible

Tools

Git

Bazel

Jira

Pytest/Unittest

GitHub Actions

Buildkite

Sockets/RPC basics

Job description

• The System Validation Team ensures the performance, reliability, and safety of Zipline’s integrated system of systems, including the Zip, Droid, and Dock. We specialize in Hardware-in-the-Loop (HIL) testing, enabling us to validate complex interactions across hardware and software before real-world deployment
• Our team builds and maintains automated pipelines that rigorously test software in a simulated environment, ensuring it meets high standards before being tested in flight
• By catching potential issues early and refining system behavior, we play a critical role in delivering reliable, safe, and efficient solutions that power Zipline’s mission to transform global logistics. Our team owns automation of flight testing as well to capture issues before it happens in commercial flights
• As a System Validation Intern, you will contribute to testing and validating Zipline’s complete system of systems—spanning the Zip, Droid, and Dock. You’ll help build and refine automated testing pipelines, ensuring that software meets rigorous quality standards before being tested in flight
• Working closely with a supportive and experienced team, you’ll develop hands-on experience with cutting-edge tools and technologies while solving meaningful challenges. Your work will play an essential role in ensuring the reliability of systems that deliver life‑saving goods worldwide
• This role offers a unique opportunity to learn, grow, and make an impact in a fast‑paced, mission‑driven environment
• Assist in executing Hardware-in-the-Loop (HIL) tests and flight tests to validate the interaction between Zipline’s Zip, Droid, and Dock systems
• Collaborate with a wide range of engineers from different teams to build and refine automated pipelines that test software before it is deployed in flight
• Design and improve tools that stress-test the system in off‑nominal cases
• Analyze and troubleshoot hardware and software issues uncovered during testing, contributing to system improvements
• Work alongside a multidisciplinary team to design and execute system‑level validation plans
• Develop and enhance scripts and tools to support automated testing workflows
• Learn how to ensure reliability and quality in complex, safety‑critical systems, gaining valuable insights into real‑world engineering challenges
• This internship is a full‑time position, in‑person at our South San Francisco office. We will host our Spring 2027 interns from January to April

• Strong attention to detail and organizational skills to document test results and track issues effectively
• Experience working in a Linux environment, including using command-line tools effectively
• Experience working with CI tools like GitHub Actions, Buildkite, or similar
• Experience writing Rust or Python scripts to automate tasks or tests, either through coursework or personal projects
• General understanding of electrical systems such as motors, sensors, cameras, and onboard computers
• A hands‑on approach to problem‑solving, including debugging and triaging technical issues
• Strong understanding of engineering design fundamentals and the ability to triage and identify root causes of technical issues
• You must have completed the second year of your undergraduate studies.
• Master’s and PhD students are also eligible
• Hands‑on experience writing Python tests using tools like Pytest or Unittest
• Familiarity with creating and executing test plans or validation plans for software or hardware systems
• Familiarity with tools like Git for version control, bazel for build and test management and Jira for task tracking
• Basic understanding of networking concepts such as RPC or sockets