Senior Backend Engineer – Ruby
Does this sound like you?
You're a motivated and detail-oriented professional who thrives in a fast-paced environment. With strong communication, organisation, and problem-solving skills, you enjoy owning your workstream from end to end. You are a proactive engineer who takes ownership of complex technical challenges and enjoys building scalable applications. You’re someone who goes beyond task completion to deliver genuine value through high-quality, maintainable code and a positive experience for everyone involved.
What you’ll be doing (in a nutshell):
In this role, you’ll take ownership of key operational responsibilities for our backend systems, ensuring smooth delivery and execution of our Ruby on Rails applications. You’ll work collaboratively with product, design, and other engineering teams to build seamless outcomes, evolve our APIs, and support organisational success.
Day-to-day you can expect to:
Design, develop, and maintain scalable Ruby on Rails applications and backend services
Build and maintain robust RESTful APIs while ensuring secure authentication and authorisation patterns
Work with relational databases including AWS RDS, MySQL, and Postgres
Write clean, well-tested code following engineering best practices and implement background jobs
Troubleshoot, debug, and optimise application performance to ensure a great user experience
Participate in code reviews and contribute to improving our engineering standards
Identify opportunities for process improvement and technical innovation within the codebase
To be successful, you'll have:
At least 3 years of professional experience with Ruby on Rails
Solid understanding of Ruby, JavaScript or Typescript, and MVC architecture
Strong experience with relational databases such as PostgreSQL or MySQL and ORM tools like ActiveRecord
Proficiency with RSpec, Git, and mocking and unit testing principles
Experience with background job processing using tools like Sidekiq
Excellent communication skills with the ability to engage stakeholders and collaborate with frontend teams
A detail-oriented approach with a commitment to quality, accuracy, and clean code
Bonus points if you bring:
Understanding or experience with GraphQL
Experience implementing or integrating SSO (Single Sign-On)
Previous experience working in cloud environments, specifically AWS
Familiarity with CI/CD pipelines and working in a fast-paced or scaling organisation
A problem-solving approach with confidence navigating ambiguity or change
Why Perkbox?
It's an exciting time to join us at such a pivotal moment. We recently launched our Bulgarian operations with a bold mission to build a high-performing and inspired team. Our goal is to foster a workplace defined by growth, genuine collaboration, and a sense of purpose.
With more than 20 years of experience across public, private, SME and corporate sectors, Perkbox are now supporting over 4 million employees across 7,500 organisations. From access to expert mental health services to help with the cost of everyday essentials, our expanded range of benefits and wellbeing tools meets people where they are - at work and beyond.
We’re redefining what employee benefits can be. And we’re just getting started.
The Interview Process
Our interview process involves 4 main stages:
Application
Short call with a member of the TA team
60-minute video call with Hiring Manager and one other team member
Final Interview and task with two members of the team
Our average process takes around 2-3 weeks, but we will always work around your availability. You will have the chance to speak to our recruitment team at various points during your process. If you have any specific questions ahead of this, please contact dimitar.kondakov@perkbox.com
We’re committed to being an inclusive employer and creating a fair workplace for all. We encourage applications from candidates across all backgrounds, circumstances, ages, disabilities, ethnicities, religions or beliefs, gender identities, or sexual orientations
We're happy to offer reasonable adjustments during our hiring process. Just let us know, and we'll make it work for you. Your comfort and success matter to us!
- Locations
- Bulgaria
- Remote status
- Fully Remote
About Perkbox
In 2025, Perkbox and Vivup came together under one name: the new and evolved Perkbox. That move created the UK’s first fully unified employee experience platform – a single place where organisations can care for, connect with, and celebrate their people.
Today, more than 7,500 organisations – from the NHS to leading private sector businesses – trust us to support 4 million employees worldwide. We’re raising the bar for what employee benefits can be – and together, we’ll redefine what work feels like!