About this opportunity
Collectors Universe, Inc. lists this Senior Software Engineer - Grading Operations opportunity in california, Missouri. Review the employer’s description below for duties, qualifications and application requirements.
Job description
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 Operations
About the Role
The 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 Do
Use AI tooling, with a preference for Claude, routinely across software design, architecture, and implementation, while owning the quality of what ships
Build backend services, APIs, and data models that power the internal applications our grading and authentication teams rely on every day
Work 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 work
Design and implement event-driven and asynchronous systems that keep operational data flowing reliably at high volume
Contribute to frontend application development using JavaScript, TypeScript, and Vue.js to deliver features end to end
Collaborate with Product, Tech, and Operations teams to translate business requirements into clean technical designs across both backend and frontend systems
Troubleshoot data, integration, service, and UI issues across a large, long-lived codebase
Share in an on-call rotation supporting the services the team owns
Contribute to technical documentation to improve maintainability, knowledge sharing, and team velocity
Help raise the bar on system design, code quality, observability, and engineering best practices across the team
Who You Are
5+ years of software engineering experience building production applications, with substantial experience in backend systems and some hands-on experience delivering frontend work
3+ years experience / strong proficiency in C# and .NET
Routine use of AI tooling as part of how you design and build software, with the judgment to review and take responsibility for what it produces
Experience designing and building RESTful APIs and service integrations
Sound judgment about where code belongs, including how to draw module boundaries inside a large application and when a capability warrants its own service
Experience writing and maintaining automated tests for services running in production
Strong 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 stores
Comfortable working in a modern frontend codebase, with hands-on experience in JavaScript, HTML, CSS, and a component-based framework
Experience 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 build
Experience turning complex requirements from Product and Operations partners into clean, extensible systems
Familiar with Agile/Scrum methodologies
Nice to Have Experience designing asynchronous, event-driven, and distributed systems
Experience with any of AWS, Python (including test frameworks such as pytest or unittest), Apache Kafka, DynamoDB, or Vue.js
Experience partnering closely with Product, and comfort working directly with the operations and business teams who use what you build
Experience making high-volume workflows faster, in the interface or behind it, where shaving seconds off a repeated task adds up across thousands of items
Collectors uses e-Verify to validate your ability to work legally in the United States.
We 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
U.S. 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.
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Worksite address
california, MO, 65018, US
Who can apply
Review the original listing for work authorization, qualifications and employer requirements.