Senior Backend Engineer - Payments (Ruby/PHP/Scala) Hybrid

Makeswift, Inc.; Greater London; Hybrid; GBP 70,000 - 110,000; Full time

Job summary

Commerce is seeking a Software Engineer II - Backend to design, implement, and maintain Ruby on Rails services for the payments offering on the BigCommerce platform. This hybrid role is based in London, United Kingdom, with collaboration across product and operations to ensure secure, scalable checkout experiences.

You'll work on high-availability services, contribute to incident reviews, and mentor peers while integrating with third-party APIs.

Qualifications

• 3+ years of backend development experience with Ruby on Rails.
• Experience building production-grade systems with logs, traces, metrics.
• Familiarity with observability tooling (Prometheus, Grafana, Sentry).
• Strong understanding of Domain Driven Design and API integrations.
• CI/CD experience and designing scalable web services.

Responsibilities

• Design, implement, and maintain a Ruby on Rails backend for the payments offering on the BigCommerce platform.
• Ensure production-grade quality with tests, instrumentation, and documentation.
• Troubleshoot live issues and contribute to post-incident reviews.
• Collaborate with product/ops to improve architecture and scale services.
• Mentor engineers and uphold security, reliability, and performance standards.

Skills

Ruby on Rails

Backend development

Domain Driven Design

API integrations

Observability basics

Education

Bachelor's degree in CS/EE/SW/CE/MIS or equivalent

Tools

Prometheus

Grafana

Sentry

Lightstep

Job description

Commerce is seeking a Software Engineer II - Backend to design, implement, and maintain Ruby on Rails services for the payments offering on the BigCommerce platform. This hybrid role is based in London, United Kingdom, with collaboration across product and operations to ensure secure, scalable checkout experiences.

You'll work on high-availability services, contribute to incident reviews, and mentor peers while integrating with third-party APIs.