Senior Ruby Engineer

What You'll Do

• Design and implement scalable, high-performance backend systems to power our e-commerce experience.
• Build and maintain interfaces that support our frontend, mobile, and third-party integrations.
• Be very experienced working with pull, push models for data parity between third parties and our systems around e-commerce concerns of product, stock, orders and fulfillment synchronization.
• You'll design, implement and deploy reliable software to solve complex e-commerce concerns.
• Architect systems for membership access, catalog management, checkout, order fulfillment, and payments.
• Collaborate cross-functionally with product, design, and data teams to deliver features that elevate the user experience.
• Own backend services end-to-end, from design to deployment and monitoring.
• Contribute to best practices in code quality, testing, reliability, and observability.
• Help define our backend architecture and make strategic technical decisions as we scale.
• Mentor junior engineers and foster a culture of technical excellence and collaboration.

Who You Are

• 7–8+ years of experience building and scaling backend systems in production environments.
• 4+ years leading Ruby cloud stack teams as a Principal Engineer/Architect.
• Genuine Rubyist with deep knowledge of Ruby object model – eigenclasses, method dispatch, method_missing, send, and all variable types.
• Expert skills with Ruby idiomatic patterns, terse styling, metaprogramming, and ability to create macros, DSLs, and other domain‑specific abstractions.
• Experience contributing to widely used gems or developing internal DSLs for domain‑specific needs.
• Ruby without Rails – capable of building complex applications and deciding when to use Rails versus custom Ruby plugins.
• Proficiency in building APIs and distributed services using Ruby.
• In‑depth knowledge of Rails AREL, performant code, and proper Sidekiq job handling.
• Expert knowledge of data‑model design for e‑commerce concerns, including locking sensitive resources such as credit‑card charges and state‑machine concepts.
• Expert experience with PostgreSQL, complex joins, reporting queries, and performance optimization.
• Familiarity with cloud infrastructure (e.g., AWS, ECS, CodeBuild) and containerization (Docker, Kubernetes).
• Strong understanding of system design, data structures, and algorithmic principles.
• Comfortable working in high‑growth, early‑stage environments with a bias toward action and strong product sense.
• Collaborative teammate who communicates clearly and is excited to shape the future of a luxury tech brand.
• Experience with specific challenges of concurrency, inventory reservation, currency/price management, and third‑party API integration system designs – push, pull, effective normalization, etc.
• High familiarity with microservices software design using DSLs for cloud‑deployed solutions across numerous models, concerns, and integrations.
• Experience developing and deploying GraphQL and RESTful API interfaces.
• Experience developing multi‑tenant systems, including access control, reporting, and authorization/authentication concerns.

Bonus Points

• Prior experience in e‑commerce, marketplaces, or membership‑based platforms.
• Familiarity with event‑driven architectures and message queues (Kafka, SQS, etc.).
• Experience working closely with design or product teams in consumer‑facing companies.
• Passion for fashion, luxury, or retail innovation.

Benefits

• Opportunity to play a key role in shaping the future of the company.
• Collaborative and innovative work environment.
• Career growth opportunities in a fast‑growing organisation.

Let's build something people talk about. Together.