Summer Intern Jobs - April 2026

Uncountable is a profitable SaaS company accelerating R&D for industrial scientists. They are hiring Full-Stack Engineers and LLM Applications Engineers to work on the Uncountable Web Platform and LLM-native UIs and application extensions. Roles are in-person…

Trail of Bits is a cybersecurity research and consulting firm based in Brooklyn, NY. We work with companies like Epic Games, Google, Microsoft, and Zoom on smart contract audits, application security, vulnerability research, and more. We’re hiring 10-12 summe…

Uncountable accelerates R&D for industrial scientists across materials, chemicals, and life sciences organizations with a SaaS solution. The company (founded by MIT and Stanford engineers) is profitable and growing. Role: Full-Stack Engineers to spearhead dev…

Uncountable is a profitable SaaS company (since 2016) that accelerates R&D for industrial scientists in materials, chemicals, and life sciences. They are hiring Full-Stack Engineers to spearhead development of the Uncountable Web Platform; the role is product…

Uncountable accelerates R&D for industrial scientists across materials, chemicals, and life sciences organizations with a SaaS solution. Founded by MIT and Stanford engineers and profitable since 2016. Hiring Full-Stack Engineers to spearhead development of t…

Reffie is an early-stage startup building the next-generation workflow and data analytics platform for residential real estate owners, operators, and property managers. We are venture-backed with support from firms like Haystack, Trust, a16z and others. We ar…