Senior Full Stack Software Engineer (Ruby JS)

Job title: Senior Software Engineer (Ruby React/Next.js) Reports to: CTO. Salary: up to £100,000 Benefits. Benefits : Free parking on site parking and on site gym. A fantastic opportunity has arisen within JamDoughnut, a fast growing scale up which is helping hundreds of thousands of people in the UK save money every day. We are recruiting for a Senior Full Stack Engineer to join our growing Tech team and work across our suite of mobile and web applications to help us to deliver an exceptional, bug free customer experience. The ideal candidate should be excited by the challenge of working in a high growth and fast-paced environment. You will have the opportunity to make important contributions and be a key player at a hugely exciting time for the business as we continue to grow. Key Deliverables: To include, but not limited to: Write well-designed, testable and reliable code for our mobile apps and web platforms. Ensure the performance, quality, and responsiveness of the applications as we scale. Implement efficient and reliable integration with PostgreSQL databases always looking to optimise performance. Utilise Docker for containerization, ensuring seamless deployment and scalability of applications. Collaborate with your team in a hands-on environment using pair and mob programming practices. Contribute towards the technical strategy of our platform. Maintain a sensible level of documentation. The Ideal Candidate: 5 years working with Ruby on Rails, Ruby version & gem managers in a commercial environment. 5 years working with the modern JS framework on a commercial website (we use React, Next and a CSS framework). Proven experience developing RESTFul API backends for Javascript apps. Worked with CI/CD and familiar with GitHub Actions. Implemented automated testing frameworks (unit, integration, e2e, performance). Strong understanding of object-oriented programming, design patterns, and best practices. Is comfortable working within a fast paced environment with strict time constraints. Familiarity with YAML and configuration management practices. API design, implementation, and integration. What We Offer: Up to £100,000 base salary. Genuine career progression opportunities as the company scales. Pension scheme. Access to JamDoughnut discounts. Regular social events. Free on site parking. Onsite gym and breakout areas. The interview process: Initial call (10 mins). Call with the Hiring Manager. Practical task onsite interview.