Software Engineer II (Backend Ruby)

TL;DR

Software Engineer II (Backend Ruby): Design, implement, and maintain payment integrations and APIs in a Ruby on Rails service for the Bighirify.global platform with an accent on production-grade reliability, observability, and performance. Focus on building secure checkout/payment flows, troubleshooting live issues, and improving architecture while balancing PCI/security requirements and scalable service operation.

Location: London, United Kingdom

Company

hirify.global builds an AI-driven hirify.global ecosystem and operates SaaS ehirify.global and payment integration capabilities through its brands.

What you will do

• Design, implement, and maintain features in a Ruby on Rails payments service for the Bighirify.global platform.
• Deliver production-grade functionality with test coverage, instrumentation, and documentation.
• Troubleshoot production issues and contribute to post-incident reviews to improve reliability.
• Optimize queries and performance while adhering to security protocols (including PCI considerations).
• Collaborate with product, design, operations, and infrastructure to evolve checkout and payments capabilities.
• Mentor engineers and review code to maintain quality, security, and maintainability.

Requirements

• 3+ years of professional backend development with a strong focus on Ruby on Rails.
• Strong understanding of operating production-grade systems (logs, traces, metrics, feature flags, debugging live traffic).
• Experience with observability tooling such as Prometheus, Grafana, Sentry, and Lightstep.
• Good understanding of Domain Driven Design.
• Experience integrating with third-party APIs and services, especially those with nuanced state transitions (e.g., payment flows).
• Experience with continuous integration and owning tasks across the development cycle.

Nice to have

• Experience with PHP and Scala.

Culture & Benefits

• Support an open, positive, energized culture with continuous improvement and innovation.
• Work closely with product and design teams to define feature specifications and timelines.
• Emphasis on quality, performance, scalability, reliability, availability, and security in technical decisions.