Pioneering Intelligence: Agentic AI Co-Op

Flagship Pioneering · Co-Ops & Internships

Apply at Flagship Pioneering

Where: Cambridge, MA USA
Posted: Sep 2

This position is open exclusively to current Northeastern University Co-Op students.

Work Period: January 2027 to June 2027. This is a full - time, 40 hours per week position with 5 days in office.

What you'd do

Build and improve agents that use APIs, tools and large datasets.
Rethink traditional research and software-development workflows using an agentic SDLC.
Design evaluations for accuracy, reliability and cost online and offline.
Design and run evaluations that measure accuracy, reliability, and cost on public and proprietary datasets.
Prototype new capabilities and turn successful experiments into production components.
Investigate agent failures, identify their causes, and develop fixes.
Ship features regularly with the team and contribute to team reviews owning increasing context as the Co-Op's project expands.

What they want

Enrollment in a master's degree program in computer science, machine learning, or a related field.
Strong Python skills and experience reading and writing production-quality code.
Hands-on experience developing agents through coursework, personal projects, research, or prior work.
The ability to break down complex systems, reason from first principles, and develop practical solutions.
Clear technical communication skills.

What you get

Build alongside founders. You’ll work inside the same hypothesis-driven process Flagship uses to conceive and launch first-in-category companies.
This can be the start of a longer story. Strong co-ops are considered for future opportunities across Flagship and its portfolio companies, not just for this one role.
Work alongside people who left the safe path. Your colleagues are scientists, engineers, and operators who chose to build something new rather than join something already established.
Take on real ownership. You're contributing to ventures that are still being defined. Your work can shape real decisions, not just support them.
Be paid like the contributor you are. Compensation reflects the real work you take on.

About Flagship Pioneering · Co-Ops & Internships

Flagship Pioneering is a biotechnology company that invents and builds platform companies that change the world. We bring together the greatest scientific minds with entrepreneurial company builders and assemble the capital to allow them to take courageous leaps. Those big leaps in human health and sustainability exponentially accelerate scientific progress in areas ranging from cancer detection and treatment to nature-positive agriculture. What sets Flagship apart is our ability to advance bio…