Location
London

Hours
Full Time - Internship duration as per program

Salary
Negotiable

About the Role
Stripe is a technology company focused on improving the conditions for economic growth and prosperity by building programmable financial infrastructure. We rethink how financial services should work to make it easier and cheaper for any business to start and scale. More than 10 million businesses, from solo founders to established enterprises, build on Stripe, processing trillions of dollars annually—equivalent to around 1.6% of global GDP. Our growth depends on the success of these businesses, and we invest heavily in technology to deliver reliable APIs, new financial infrastructure, and advances in risk and fraud management to make the internet economy safer and more accessible.

As a Software Engineer Intern at Stripe, you will work on impactful projects across our stack that directly affect millions of businesses worldwide. You will own problems end to end with support from your manager and teammates, collaborating with some of the most creative and technically rigorous engineers in the industry. This internship offers a unique opportunity to learn how to ship high-quality work at scale and gain insight into the global economy through Stripe’s codebase.

Recent intern projects include expanding Payments Foundation Model capabilities for anomaly detection, building fraud controls, creating safer payouts, and developing user-facing solutions to improve merchant checkout setup and prevent pricing mistakes. Our internship program is competitive and demanding, designed to challenge and develop your skills in a supportive environment.

Experience
- Strong fundamental understanding of computer science through pursuit of a Bachelor’s or Master’s degree in computer science, math, or a related discipline.
- Experience with programming through side projects, classwork, previous internships, or multi-person projects including open source contributions.
- Familiarity with languages such as Ruby, Java, JavaScript, Go, and Scala is beneficial, though new languages can be learned with strong fundamentals.
- Ability to learn unfamiliar systems independently and with mentorship.
- Experience evaluating and incorporating feedback from mentors, peers, and stakeholders.
- Ability to leverage AI tools to accelerate development while applying critical thinking and professional judgment.

About you
- Ambitious builder energized by solving problems without clear precedent and with far-reaching impact.
- Deeply curious and enjoys discovery over certainty.
- Rigorous thinker who appreciates complex challenges.
- Adaptable problem solver who treats obstacles as opportunities.
- Embraces kindness while taking measured risks and acting boldly, even without consensus.
- Clear written communication skills to explain work effectively to stakeholders and team members.

Qualifications
- At least 1 year of university education or equivalent work experience.
- Specialized knowledge in one or more areas such as frontend, backend, infrastructure, or other technologies balanced with general skills.
- Experience writing high-quality pull requests with good test coverage.
- Ability to navigate and manage work in new codebases with multiple languages.
- Demonstrated ability to complete projects with minimal defects.