Senior Software Engineer - Grading Operations

Collectors is the leading creator of innovative technology that provides value-added services for collectors worldwide. We grade, authenticate, vault, and sell millions of record-setting collectibles, all while modernizing and digitalizing the process to further our mission of helping collectors pursue their passions. We’re always on the lookout for talented people to join our growing team.Our services span collectible trading cards, autographs, comic books, coins, video games, event tickets, and memorabilia. Our subsidiaries include PSA, PCGS, Beckett, SGC, and Card Ladder.Since our founding in 1986, we have graded and authenticated millions of items. We employ more than 3000 people across our headquarters in Santa Ana, California and offices in New Jersey, Texas, Florida, Japan, Shanghai, Hong Kong, Canada, Mexico, Germany, the UK, and France.As part of our interview process, we request that candidates have their cameras on during video interviews. This helps foster meaningful conversation and allows us to create an experience that closely resembles our standard working environment. Certain interview steps may take place by phone. For remote roles, and at our discretion, candidates may be asked to participate in an on-site interview as part of the final stages of the process.We understand there may be occasional circumstances requiring accommodation and are happy to discuss them as needed. Your recruiter will be able to clarify expectations and answer any questions you have.Senior Software Engineer, Grading OperationsAbout the RoleThe Grading Operations software engineering team builds and operates the internal software that runs our grading and authentication business. That means the applications our operations teams work in every day, the services and APIs behind them, the scheduled and event-driven processes that move items through the grading lifecycle, and the integrations that connect all of it to adjacent systems across the platform. Volume climbs every year and the systems have kept up. As our grading operations reach more markets, keeping pace means solving for distance as well as volume.We are looking for a Senior Software Engineer who can help build and evolve the services, event-driven pipelines, and internal applications that keep a high-volume physical operation running. This role is especially well-suited for an engineer who is strongest on the backend, but comfortable working in the frontend to take features all the way to the people who use them.What You'll DoUse AI tooling, with a preference for Claude, routinely across software design, architecture, and implementation, while owning the quality of what shipsBuild backend services, APIs, and data models that power the internal applications our grading and authentication teams rely on every dayWork across a mix of architectures, from a large containerized .NET application to smaller serverless APIs and Python background processing jobs, and help decide which is the right fit for new workDesign and implement event-driven and asynchronous systems that keep operational data flowing reliably at high volumeContribute to frontend application development using JavaScript, TypeScript, and Vue.js to deliver features end to endCollaborate with Product, Tech, and Operations teams to translate business requirements into clean technical designs across both backend and frontend systemsTroubleshoot data, integration, service, and UI issues across a large, long-lived codebaseShare in an on-call rotation supporting the services the team ownsContribute to technical documentation to improve maintainability, knowledge sharing, and team velocityHelp raise the bar on system design, code quality, observability, and engineering best practices across the teamWho You Are5+ years of software engineering experience building production applications, with substantial experience in backend systems and some hands-on experience delivering frontend work3+ years experience / strong proficiency in C# and .NETRoutine use of AI tooling as part of how you design and build software, with the judgment to review and take responsibility for what it producesExperience designing and building RESTful APIs and service integrationsSound judgment about where code belongs, including how to draw module boundaries inside a large application and when a capability warrants its own serviceExperience writing and maintaining automated tests for services running in productionStrong fundamentals working with relational databases and data modeling (e.g. SQL Server, PostgreSQL)Hands-on experience building and operating production services in the cloud, including container orchestration (e.g. Docker, Kubernetes, ECS), serverless compute behind an API gateway, and managed messaging and data storesComfortable working in a modern frontend codebase, with hands-on experience in JavaScript, HTML, CSS, and a component-based frameworkExperience with CI/CD pipelines, Infrastructure as Code (e.g. Terraform, CloudFormation), and monitoring and observability tooling (e.g. CloudWatch, Datadog)Strong communication and troubleshooting skills, with the ability to document what you buildExperience turning complex requirements from Product and Operations partners into clean, extensible systemsFamiliar with Agile/Scrum methodologiesNice to HaveExperience designing asynchronous, event-driven, and distributed systemsExperience with any of AWS, Python (including test frameworks such as pytest or unittest), Apache Kafka, DynamoDB, or Vue.jsExperience partnering closely with Product, and comfort working directly with the operations and business teams who use what you buildExperience making high-volume workflows faster, in the interface or behind it, where shaving seconds off a repeated task adds up across thousands of itemsCollectors uses e-Verify to validate your ability to work legally in the United States.We are aware that there are instances where individuals are receiving job offers that fraudulently allege to be from Collectors or one of our business units. This type of fraud can be carried out through false websites, through fake e-mails claiming to be from the company or through social media. We never ask for personal information such as your bank account, Social Security numbers or National IDs, nor do we send or request payments for the purchase of business-related equipment. If you suspect fraud, please reach out to View email address on us.fitly.work are committed to equal employment opportunity regardless of race, color, ethnicity, ancestry, religion, national origin, gender, sex, gender identity or expression, sexual orientation, age, citizenship, marital or parental status, disability, veteran status, or other class protected by applicable law. We believe that a team that represents a variety of backgrounds, perspectives, and skills will better service the diverse community of collectors we support.If you require an accommodation to apply or interview with us due to a disability or special need, please email View email address on us.fitly.work. residents: for disclosures relating to personal information we collect during the employment application and recruitment process, please see our Privacy Notice for U.S. Applicants.SummaryLocation: Santa Ana, CA; US - RemoteType: Full time