About Lyst

Lyst is a global fashion shopping platform founded in London in 2010 and catering to over 160M shoppers per year. We offer our customers the largest assortment of premium & luxury fashion products in one place, curating pieces from 27,000 of the world's leading brands and stores. In 2025, Lyst joined Zozo, operators of Zozotown, the leading fashion e-commerce platform in Japan. This partnership marks a bold new era for Lyst, as we accelerate our vision and work together to transform the future of fashion shopping through AI and technology. 

At Lyst, we obsess over the customer, providing a search & discovery experience which offers inspiration, fulfilment, and personalisation. We believe that fashion is amazing but shopping for fashion often isn't, and use our technology, data and creativity to bring more joy, greater choice and fewer fails. Our mission is to help fashion shoppers make better choices and help fashion partners find better audiences as the category-leading destination for every fashion shopper.

The Opportunity

We are seeking a Senior Full Stack Engineer to join the Member Experience squad. This is a highly collaborative, cross-functional team focused entirely on elevating the journey for our registered Lyst members.

You will be instrumental in developing and optimizing features related to user personalization, stock/price alerting systems, and creating member-exclusive functionality. Your work will span across the entire membership ecosystem, including the primary website, mobile application, CRM database, and our push-notification/email services. Our collective goal is to engineer seamless, engaging experiences that maximize member retention and value.

Requirements

Core 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.

Values & Mindset

• You possess an inherent curiosity and the drive to take full ownership over improving systems.
• You are highly detail-oriented and focused on quality improvement.
• You are a collaborative team player who communicates with clarity and humility. You must be able to convert complex design ideas into coherent execution plans.
• You demonstrate a clear sense of ownership over the team's features and services.
• Experience iteratively building, refactoring existing systems, and authoring new code is required.

Impact in Your First 90 Days (Goals & Development)

The following targets outline what we expect you to master and contribute within your first three months:

• Architectural Fluency: Rapidly gain deep familiarity with our technology stack, architecture, workflows, and tooling. You should be completely comfortable operating within our systems.
• Feature Delivery Cadence: Establish a consistent and efficient delivery pace, successfully shipping your first major feature.
• Quality Leadership: Champion best engineering practices and lead with quality. Provide timely, actionable, and constructive feedback during pull request reviews to raise the standard for the entire team.
• Mentorship & Growth: Actively support and mentor junior developers through pairing, troubleshooting, sharing architectural knowledge, and providing clear feedback.
• Organizational Collaboration: Successfully build working relationships across the organization with product, design, and other engineering teams.
• End-to-End Reliability: Show reliability in meeting commitments and taking full responsibility for task completion from inception to deployment.

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.

We want to build a world where fashion works for everyone, and we want teams that are just as inclusive. Diversity and inclusion is an integral part of our culture at Lyst. We recognise and celebrate the value and impact diversity brings to our company and are committed to ensuring this is a consistent focus, for which we are held to account. We are committed to treating all applicants fairly and equally, and encourage candidates from all backgrounds to apply for this role. We are happy to talk about flexible working arrangements.

Don’t meet every single requirement? Studies have shown that women and people of color are less likely to apply to jobs unless they meet every single qualification. At Lyst we are dedicated to building a diverse, inclusive and authentic workplace, so if you’re excited about this role but your past experience doesn’t align perfectly with every qualification in the job description, we encourage you to apply anyway. You may be just the right candidate for this or other roles.