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Backend Engineering Intern - Summer 2026

Mercury is a fintech product serving over 100,000 businesses; the Summer 2026 Backend Engineering Intern will receive mentorship from experienced engineers and contribute backend services written in Haskell and/or TypeScript. We’re looking for curious, communicative students who appreciate high-quality work and want hands-on experience building production features and integrations.

Skills

  • Experience with or strong desire to learn Haskell
  • Familiarity with SQL and relational databases
  • Comfort with TypeScript is a plus
  • Basic understanding of HTTP APIs and third-party integrations
  • Version control with Git and collaborative development workflow
  • Clear written and verbal communication of technical decisions

Responsibilities

  • Collaborate with data analysts to spec and build features that attract and retain customers
  • Implement backend endpoints serving mobile and web clients (search, transfers, account actions)
  • Build admin tools to improve support efficiency (fraud identification, account management)
  • Integrate with third-party APIs (e.g., check sending, SWIFT validation)
  • Write tests, participate in code reviews, and maintain high code quality
  • Work closely with mentors and cross-functional teams to design and iterate on features

Education

  • Currently enrolled in an undergraduate or graduate academic program (required)
  • Degree in Computer Science, Engineering, or related field preferred but not required

Benefits

  • Paid internship — US candidates: $55/hour (annualized ≈ $114,400); Canada candidates: CAD 55/hour (annualized ≈ USD $84,448)
  • 12–16 week full-time remote internship between May and September
  • Mentorship from experienced engineers and meaningful product impact
  • Inclusive, equal-opportunity employer with accommodations available during hiring
  • Exposure to production systems, code reviews, and cross-functional collaboration
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
$84,448/yr - $114,400/yr
EMPLOYMENT TYPE
Full-time, remote
DATE POSTED
October 13, 2025
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