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Frontend Engineering Intern - Summer 2026

Mercury is a fintech company serving 100,000+ businesses; the Engineering Internship offers mentorship and hands-on work in TypeScript (and optionally Haskell) on a production-scale frontend. Interns will collaborate with designers and engineers to build high-quality UI, improve performance, and contribute meaningful features across a large TypeScript codebase.

Skills

  • Proficiency with TypeScript
  • Familiarity with React is a plus
  • Strong HTML/CSS and frontend debugging skills
  • Basic familiarity with Git and collaborative workflows
  • Clear written and verbal communication for explaining technical decisions

Responsibilities

  • Write and ship TypeScript/React frontend code for customer-facing features
  • Collaborate with designers and engineers to iterate on UX and implementation
  • Improve UI quality and performance (e.g., combobox scrolling, pages, components)
  • Use TypeScript's static typing to reduce runtime errors and increase maintainability
  • Participate in code reviews and technical discussions; document design decisions
  • Own tasks end-to-end within the internship timeframe and seek feedback from mentors

Education

  • Currently enrolled in an academic program (undergraduate or graduate)
  • Able to commit full-time for 12–16 weeks between May and September

Benefits

  • Paid internship: $55/hour (US) or CAD 55/hour (Canada)
  • Mentorship from experienced engineers and hands-on product work
  • Remote-friendly role with exposure to a large production codebase
  • Professional development and potential pathways to full-time roles
  • Inclusive hiring and reasonable accommodation process
To read the complete job description, please click on the ‘Apply’ button
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BADGES
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CULTURE VALUES
Dare to be Different
Diversity of Opinions
Inclusive & Diverse
Empathetic
Take Risks
FUNDING
SENIORITY LEVEL REQUIREMENT
TEAM SIZE
SALARY RANGE
$114,400/yr - $114,400/yr
EMPLOYMENT TYPE
Full-time, remote
DATE POSTED
October 13, 2025
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