Company Name: Loot Labs Job Details: Hiring,Remotely,in,USA,Remote,Senior,level Job Url: https://builtin.com/job/senior-backend-engineer/7254786 Job Description: Loot Labs is on a mission to make collecting fun. We are passionate about bridging the gap between collectible markets and avid collectors. Our product, Boxed.gg, offers a marketplace that facilitates the purchase and trade of digital items in an accessible manner. The platform initially focused on physical trading card games such as Pokémon, Magic: The Gathering, and Yu-Gi-Oh!, allowing users to digitally unbox rare cards and have the physical items shipped to their doorsteps. We’re hiring a Senior Backend Engineer to design and scale the systems behind our products. You’ll lead architecture discussions, ship secure and performant APIs, and collaborate closely across the stack. We’re looking for someone who doesn’t just write code, but owns the full system lifecycle from design to debugging to iteration.Location: Remote (US preferred) Occasional U.S. travel is required for in-person collaboration, team offsites, and company events.Type: Full-timeTime Zone Requirement: Must have 5+ hours of overlap with US Pacific Time (9am–6pm PT)Language: Must be fluent in English and comfortable working in a fast-paced, collaborative environmentWhy You’ll Love Working HereYou’ll own features end-to-end and see your impact in days, not months.Work alongside people who ship fast and care about the details.Take ownership in ambiguous situations and shape solutions collaboratively.How You’ll Contribute & Succeed HereBring senior-level experience building production backend systems (typically 5+ years)Design, build, and maintain reliable, scalable backend services using AWS (DynamoDB, Lambda, S3, AppSync, Cognito, SQS) and SST (v2 and v3), with Infrastructure as Code best practices.Develop and maintain GraphQL APIs and application logic in TypeScriptLead system design, data modeling, and architectural decisions for scalability, performance, and long-term maintainability, owning solutions from planning through launch and iterationImplement robust security, authentication/authorization, and data protectionMaintain healthy production systems through CI/CD best practices, robust observability, and effective incident responseCollaborate with frontend, product, and design to deliver backend systems that enable seamless user experiencesBring strong product sense and user empathy. Always build with the why in mind, not just the whatProactively communicate, raise concerns early, and solve problems with teammatesBalance speed and robustness, making pragmatic trade-offs to deliver value quickly without sacrificing qualityMentor others, share knowledge, and help raise the technical barBonus SkillsExperience with e-commerce systems, including payment processing, marketplaces, and order/fulfillment workflowsFamiliarity with blockchain, cryptocurrency, or digital collectiblesExperience with OpenSearch / ElasticsearchExperience building internal tools (e.g., Retool)Experience with real-time and event-driven systemsExperience with data scraping or browser automationInterest in collectibles, gaming, or creator platformsWorking Hours & CompensationLoot Labs is a remote-first company, and this role is open to candidates globally. To support efficient collaboration across teams, we will prioritize applicants who have working hour overlap with U.S. and E.U. time zones.Compensation will be competitive and based on your experience level as well as local market benchmarks for your region.Accessibility & Employment EligibilityWe are committed to providing an inclusive and accessible recruitment process. If you need any accommodations during the application or interview process, please let us know—we’re happy to support you.For candidates located in the United States: Loot Labs participates in E-Verify and will confirm work authorization as part of the hiring process.