Software Engineer Intern 2027 - Build Impactful Indoor Tech

Cartesiansystems; Cambridge (MA); On-site; USD 28,000 - 34,000; Full time

Job summary

Cartesian is seeking a motivated software engineer intern to help scale our platform and onboard new customers. You will work with senior engineers to ship code to real customers, owning a defined project during IAP.

This on-site role is based in Kendall Square, Boston/Cambridge, MA, with full-time attention required for the internship. You will gain rapid exposure to a startup environment, learning fast, and contributing to data interfaces, platform modernization, ML tooling, and security

Qualifications

• Internship-focused software development experience or coursework.
• Ability to work independently with minimal supervision on a defined project.
• Strong problem-solving and debugging skills.
• Excellent communication and teamwork within a startup environment.

Responsibilities

• Define and own a project during the internship duration.
• Develop interfaces for data and users with international retail brands.
• Modernize stack toward Infrastructure-as-Code and improve Postgres performance.
• Collaborate with research teams to enable ML workflows and edge-device data collection.
• Contribute to security tooling and credential management.
• Help improve UI/UX and optimize cloud infrastructure costs.
• Build end-to-end test infrastructure across devices, mobile, and backend.

Skills

Strong coding

Ownership

Fast learner

Tools

Python

FastAPI

Kotlin

Postgres

Terraform

Job description

Cartesian is seeking a motivated software engineer intern to help scale our platform and onboard new customers. You will work with senior engineers to ship code to real customers, owning a defined project during IAP.

This on-site role is based in Kendall Square, Boston/Cambridge, MA, with full-time attention required for the internship. You will gain rapid exposure to a startup environment, learning fast, and contributing to data interfaces, platform modernization, ML tooling, and security