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Rebuy Engine

Senior Software Engineer – B/E

Rebuy Engine

Sr. Software Engineer developing and overseeing billing and payments infrastructure at Rebuy.

Posted 4/13/2026full-timeRemote • 🇺🇸 United StatesSenior💰 $130,000 - $180,000 per yearWebsite

Tech Stack

Tools & technologies
CloudGoGoogle Cloud PlatformPHP

About the role

Key responsibilities & impact
  • Own consequential systems at Rebuy including billing and payments infrastructure.
  • Design and build Rebuy’s centralized billing system to handle merchant billing and partner payments.
  • Design and implement secure, well-structured APIs in PHP and Go.
  • Lead migration of Code Igniter 2 codebase to Code Igniter 4.
  • Partner with product and engineering to identify where AI agents can automate workflows.
  • Contribute to the engineering culture by establishing best practices.

Requirements

What you’ll need
  • 5+ years of hands-on experience building backend applications with PHP and Go.
  • Experience building or maintaining billing, payments, or financial systems.
  • Educational background in CS // Engineering or a similar area.
  • Experience designing and implementing secure, scalable, and maintainable RESTful APIs in PHP and Go.
  • Experience with cloud-based technologies, preferably GCP.
  • Experience in a Scrum/Agile environment.
  • Experience with the Atlassian suite, including Jira and Bitbucket.
  • Solid understanding of security fundamentals as they apply to backend and financial systems.
  • A collaborative mindset and work approach with the ability to lead projects and mentor others.

Benefits

Comp & perks
  • 100% free health, dental, and insurance for you and your family.
  • Flexible vacation policy, generous holiday schedule, parental leave and sick policy.
  • Remote work with a strong internet connection from anywhere within the U.S. and Canada.
  • 401(k) retirement plans for U.S. employees and TFSA and RRSP retirement plans for Canadian employees with a 3% contribution of gross salary.

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills & Tools
PHPGoRESTful APIsCode Ignitercloud-based technologiesbilling systemspayments systemsfinancial systemssecurity fundamentalsAgile
Soft Skills
collaborative mindsetleadershipmentoringproject management