Hulcan

**What You’ll Do** - Design and implement scalable, high-performance backend systems to power our e-commerce experience. - Build and maintain APIs that support our frontend, mobile, and third-party integrations. - 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.

About MILE MILE is the new members-only shopping destination redefining luxury commerce. We offer access to a curated, seasonless catalogue of the most sought-after products from globally renowned fashion houses—all at unmatched prices. Built at the intersection of technology and fashion, MILE delivers a seamless, elevated experience for both consumers and brands. Our mission is to become the leading digital destination for luxury—where exclusivity, value, and exceptional design converge. What We’re Looking For We're looking for a Senior Backend Engineer to join our growing engineering team. As an early technical hire, you’ll play a foundational role in shaping the systems that power our luxury commerce platform, from our membership model to product discovery, order management, and logistics. This is a high-impact role for someone who thrives in fast-paced, product-focused environments and wants to help build a company from the ground up.

Role Description - 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. - 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. Qualifications - 8+ years of experience building and scaling backend systems in production environments. - 4+ years leading Ruby cloud stack teams as a Principal Engineer/Architect. - Familiar with the Ruby object model - eigenclasses, method dispatch, method_missing, send, and all variable types. - Expert skills with Ruby idiomatic patterns, terse styling, metaprogramming and able to create macros, DSLs, etc. - Experience contributing to widely used gems or developing internal DSLs for domain-specific needs. - Ability to develop complex applications in Ruby without Rails and deploy Rails features vs custom Ruby plugins for the right use cases. - Proficiency in building APIs and distributed services using Ruby. - Knowledge of Rails AREL, performant code, and proper Sidekiq job handling. - Expert knowledge of proper data model design for e-commerce concerns and handling locking sensitive resources such as credit card charges and state machines. - Expert experience with PostgreSQL, including complex joins and reporting queries, and familiarity with data modeling and performance optimization. - Familiarity with cloud infrastructure (e.g., AWS, ECS, CodeBuild) and containerization (Docker). - Strong understanding of system design, data structures, and algorithmic principles. - Comfortable working in high-growth, early-stage environments—bias toward action and strong product sense are key. - A collaborative teammate who communicates clearly and is excited to shape the future of a luxury tech brand. Requirements - 7+ years of experience building and scaling backend systems in production environments. - Genuine Rubyist having written custom DSLs and/or contributed to a major Ruby gem with deep knowledge of Ruby’s metaprogramming capabilities. - Experience with concurrency, inventory management/reservation, currency/price management, and third-party API integration system designs. - High familiarity with excellent microservices software design using software DSLs over cloud deployed solutions. - Experience with relational databases (e.g., PostgreSQL) and familiarity with data modeling and performance optimization. - Familiarity with cloud infrastructure (e.g., AWS) and containerization (Docker, Kubernetes). - Experience developing and deploying GraphQL and RESTful API interfaces. - Experience developing multi-tenant systems, relating to access control, reporting, and authorization/authentication. - Strong understanding of system design, data structures, and algorithmic principles. - Comfortable working in high-growth, early-stage environments—bias toward action and strong product sense are key. - A collaborative teammate who communicates clearly and is excited to shape the future of a luxury tech brand. 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 organization. - Let’s build something people talk about. Together.

• Develop and execute comprehensive test strategies for mobile, web, and backend systems. • Create and maintain automated test suites for UI, API, and end-to-end scenarios. • Collaborate with engineering, product, and design teams to define test requirements and ensure testability of features. • Identify, document, and track bugs, working closely with developers to facilitate resolutions. • Establish and promote QA best practices, tools, and processes across the engineering team. • Support release cycles by validating new features and performing regression testing. • Continuously improve automation coverage and drive the implementation of testing within CI/CD pipelines.