Hybrid Senior Full Stack Engineer

at Lyst

• Job title: Senior Full Stack Engineer
• Job type: Full Time
• Experience level: Senior
• Salary: Not specified
• Degree requirement: No Education Requirement
• Tech skills: AWS, Cypress, Django, Docker, JavaScript, Jest, Kubernetes, Postgres, Python, React, Redis, TypeScript
• Location requirements: Hybrid, London, United Kingdom

About the role

• Senior Full Stack Engineer to develop and optimize features for Lyst's e-commerce platform. Focused on user personalization and member experience in a hybrid work environment.

Responsibilities

• Lead the development and maintenance of features (both client-side and server-side) critical to our e-commerce platform.
• The primary development stack involves Python (using the Django framework) for the backend and JavaScript/TypeScript (with React) for the frontend.
• Build features that gracefully integrate with internal/external APIs and services.
• Take end-to-end ownership of features, from initial technical design and planning through to production deployment, ensuring measurable business impact.
• Author dependable, highly tested code, utilizing tools like pytest, Jest with React Testing Library, Storybook, and Cypress for complete coverage.
• Ensure platform performance and stability by actively leveraging observability tools.
• Promote engineering excellence by creating high-quality, practical documentation.
• Our infrastructure is entirely hosted on AWS; you will work hands-on with services such as Kubernetes, Docker, PostgreSQL, Redis, SQS, SNS, and S3.
• Partner closely with Product Managers, Designers, QA, and other engineers to translate product vision into effective, delivered value.
• Implement new features as controlled A/B experiments and rigorously measure their impact.
• Scale and maintain the system responsible for delivering email and push notifications to our user base.

Requirements

• Demonstrated expertise with Python and robust backend web frameworks (we use Django, but all experience welcome)
• Deep proficiency in React, modern JavaScript/TypeScript, HTML, and CSS fundamentals.
• A comprehensive understanding of web architecture and how the full stack interacts.
• Ability to produce clear, maintainable, and resilient code.
• Exceptional knowledge of automated testing methodologies, particularly unit testing, is required to guarantee production quality.
• A strong proactive desire to refactor and improve existing codebases rather than simply applying patches.

Benefits

• Our Ways of Working: We all come into the office on **Tuesdays** and **Thursdays**, with the option to work remotely or come into the office on the other days. We believe that in person collaboration and community spirit is super important, which is why we spend some of our time in the office and some of our time at home.
• Time Off: In addition to the 8 statutory bank holidays, you will receive 29 holidays per year. Lyst’s holiday year runs from 1 April to 31 March.
• Competitive Family Leave Package: This includes Enhanced Family Leave for those eligible, paid Time off for Dependents and Support for Fertility Treatment & Loss.
• Clothing Benefit: We want you to enjoy using the Lyst app and site as much as our customers, so we provide you with a clothing allowance to use on Lyst every year. This starts at £250 when you join and increases up to £1,000 with your length of service.
• Private Healthcare: Our healthcare provider is Vitality. Your health is important to us which is why we offer all employees a comprehensive healthcare scheme from the day you start.
• Training Allowance: We’re big on continuous learning and growth, so all employees are currently entitled to an annual training allowance of £1,000. This can be used to attend conferences, industry events, training courses and to purchase resources.
• Pension Scheme: Our pension provider is The People’s Pension. We offer a minimum employee contribution of 5% and 3% employer contribution.
• Eye Tests and Vouchers: Employees can make a saving on their eye test and glasses through our chosen provider. You’ll receive a free eye test every year and a discount towards glasses.
• Cycle-to-Work Scheme: Lyst will purchase a bicycle from your chosen retailer, you will then receive a voucher to pick up your bicycle from them.
• Transport Season Ticket Loan: Employees can apply for an interest free season ticket loan to support your travel to work.
• Social Events: Frequent company wide social events including Christmas & summer parties, sports days, themed drinks, quizzes, cook alongs, as well as smaller team socials. We also have plenty of interest based groups such as football, running club, book club, culinary and more.