Ruby Engineer

At Smart, our mission is to transform retirement, savings and financial wellbeing, across all generations, around the world.

THE ROLE

We're seeking an experienced mid-level Ruby Engineer to join our development team. This position is ideal for someone with proven experience building and maintaining Ruby on Rails applications who can take ownership of features and contribute meaningfully to architectural solutions and design choices. We focus on developing the best application for our customers - quality is essential to everything we do! Our approach to code is simple, keep it clean and ensure it has good test coverage. At Smart you will work collaboratively with experienced developers and within an established product development team. We use Jira to manage product development daily while maintaining Agile ways of working.

Key Responsibilities:

• Design, develop, and maintain complex features for our Ruby on Rails applications

• Write high-quality, performant, and well-tested code Collaborate on code reviews and participate in technical discussions

• Troubleshoot and resolve complex application issues

• Collaborate with product managers to refine requirements and propose technical solutions

• Mentor junior developers and provide technical guidance

• Contribute to architectural decisions and help establish best practices

• Optimize application performance and identify areas for improvement

• Participate in on-call rotations and provide production support as needed

WHO WE ARE LOOKING FOR

• Required Qualifications 2-4 years of professional Ruby on Rails experience

• Strong understanding of object-oriented programming principles and design patterns

• Proficiency with testing frameworks (RSpec) Experience with SQL optimization and database schema design

• Strong knowledge of front-end technologies (JavaScript, HTML, CSS)

• Experience with version control systems and CI/CD pipelines

• Knowledge of background job processing (Sidekiq)

• Experience with API design and implementation Familiarity with cloud services (AWS)

• Understanding of containerization and orchestration tools (Docker, Kubernetes)

• Experience with performance monitoring and optimization (DataDog)

• Contributions to open-source projects or Ruby gems

• Excellent problem-solving and debugging skills

• Strong communication and collaboration abilities

• Bachelor's degree in Computer Science or related field, or equivalent professional experience.

WHO WE ARE

We work in partnerships with governments and financial institutions in the UK and internationally. Our cloud-native digital platform is revolutionising how people around the world think about, and save for, their retirement.

At heart, we’re a financial technology business. What we do is all about innovation, and using the power of digital change to put the customer first. Our Engineers will tell you that working at Smart gives you the opportunity to play your part in developing world-class technological solutions, working with – and learning from – like-minded people.

You’ll also find that, across our business, our colleagues love Smart’s culture, and how what we do means better financial outcomes for savers. That feels worthwhile, and it means that what we do, collectively, goes way beyond the nine to five of a typical working day.

BENEFITS

At Smart, one of the eight principles we work to is “We want happy and good people in our team”. We created a list of benefits that helps us achieve this goal:

• 26 days’ of paid holiday per year + Polish bank holidays;

• 2250 PLN annual training budget to spend on your professional development

• Health insurance (including dental care) via TU Inter

• MultiSport Plus Gym Card

• Online English lessons during working hours

• In the Krakow office wellbeing, such as manicures, massages and barbers.

• 30 days sick leave per year

• 1 week paternity leave per year