Senior Software Engineer - London

Easol is the leading all-in-one ‘experience commerce’ platform built to power experience businesses including festivals, wellness retreats, food and drink, sports and adventure trips. With Easol, experience businesses have complete control to drive more direct sales, retain more revenue, own their data and run their business on their terms.

About the role

Reporting into the Director of Engineering, the Senior Software Engineer will play a crucial role in developing our core services and the associated infrastructure, mentoring team members, and collaborating with product leadership to drive technical decisions. You'll have the opportunity to influence both product direction and engineering practices while leading the delivery of key initiatives.

Main Responsibilities

• Design, build, and maintain efficient, reusable, and reliable Ruby on Rails code;
• Lead delivery for a team of engineers, ensuring high‑quality implementation and on‑time delivery;
• Mentor and coach less experienced team members, supporting the line manager with their technical growth and career development;
• Collaborate with senior engineering management on technical strategy and roadmap planning;
• Contribute to product decisions, working closely with product managers to shape feature development;
• Identify and address performance bottlenecks and scalability challenges;
• Participate in architectural discussions and help set engineering standards.

How We Build Easol

Our application is built on a Ruby on Rails monolith with Postgres and Redis, creating a solid, reliable foundation. We believe in “boring Rails” – embracing Rails conventions and proven patterns that let us move quickly while maintaining stability and predictability. We leverage Cloudflare’s ecosystem to solve real challenges – from asset optimisation to SSL management for our creators’ sites and intelligent queue management. Our frontend approach combines modern ViewComponents and Hotwire with clear ERB views, giving us reactivity without complexity.

Requirements

• 5+ years of experience with Ruby on Rails in production environments;
• At least 2 years in a team lead or tech lead role;
• Proven track record of mentoring and developing engineering talent;
• Strong understanding of web application performance optimisation techniques;
• Experience with scaling applications and managing platform infrastructure;
• Excellent communication skills with the ability to explain complex technical concepts clearly;
• Demonstrated ability to influence product decisions and technical direction;
• Knowledge of different software delivery methodologies (Agile, Kanban, etc.) and ability to tailor processes to team needs.

What You’ll Enjoy About Joining Our Team

A high‑performing team with a great culture of working hard and enjoying team events. The opportunity to work in a dynamic, fun and challenging environment. Easol strives to create a diverse and inclusive work environment where differences are respected and welcomed. We will provide enough flexibility and support for employees of all backgrounds and physical abilities to thrive.

What You’ll Enjoy At Easol

You’ll have real visibility of what’s happening in the business. We have weekly company meetings, where we all get together to discuss our wins, learning opportunities, our goals and direction. There is an open forum for you to have your say in what we do and how we do it. We empower our team to share their ideas – no egos here! You’ll have access to our incredible perks, such as a company‑funded “deep week”, where you can travel to a destination of choice and have dedicated time to focus on a project that is important to you without distraction. In addition to that, we offer a monthly contribution towards a gym membership and your mobile phone contract, an annual personal development budget, support to choose your own equipment and a lot more. You’ll have 33 days of holidays, inclusive of public holidays. We value diverse perspectives and experiences. We’re committed to creating an inclusive environment where everyone can thrive and contribute to our mission. Employees of all backgrounds and physical abilities will be supported by us in every way possible to thrive.