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, 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. About the Role We are looking for a Senior Software Engineer, Back-End to help build and scale the systems that power the Collectors Vault — our secure storage platform that enables collectors to manage, protect, buy, sell, and move their assets with confidence. The Vault sits at the center of the Collectors ecosystem, connecting grading, marketplace, fulfillment, and ownership experiences across trading cards, coins, video games, and other collectibles. As collectors increasingly transact digitally, the Vault serves as the trusted foundation that powers asset ownership, inventory management, transfers, and commerce at scale. You'll design, build, and operate the backend services that support millions of collectible assets and their lifecycle within the Vault. Working closely with product managers, designers, and fellow engineers, you'll develop reliable, scalable systems that enable seamless customer experiences while ensuring the accuracy, security, and integrity of customer assets. This is a high-impact role on a team responsible for some of Collectors' most strategic platform capabilities, helping shape the future of digital collecting and ownership. We believe there is significant value in onsite partnership and team collaboration, and candidates within 1-hour commuting distance of the office may be expected to work onsite most of the time. Additional details will be discussed during the recruiting process. What You'll Do - Design and build scalable cloud-based systems on AWS that power core collectibles platforms and experiences - Develop APIs and backend services - Own technical architecture and delivery of end-to-end features, from design through deployment, with senior-level influence across teams - Improve and evolve existing systems, identifying opportunities to enhance performance, scalability, and reliability - Leverage modern AI tools and techniques to accelerate development, improve engineering velocity, and explore new ways of building - Provide technical leadership through design reviews, code reviews, and mentorship, raising engineering quality across teams Who You Are - 5+ years of software engineering experience building web applications, APIs, and distributed systems at scale - 2+ years of hands-on AWS experience, including serverless and event-driven architectures - Java strongly preferred, and not afraid to take on other new technologies. Proficiency or familiarity with C# is a plus - Use modern AI tools (e.g. Claude Code CLI, Codex) as a crucial part of your development workflow to accelerate delivery, improve engineering velocity, and explore new approaches to building that drive team-wide productivity and innovation - Strong fundamentals in engineering (OOP, design patterns, testing, security, observability) - Proven experience working in fast-paced, cross-functional product teams embedded with Product, Design, TPM, and Business partners, shaping requirements, tradeoffs, and execution end-to-end Salary Range: The salary range for this position is $140,971-$228,870 Actual compensation on this range varies based on a variety of non-discriminatory factors, including location, job level, experience, and skill set. This role may be eligible for bonuses, commissions, or other forms of compensation, please ask your recruiter for details. Reasons To Join Us: - Health Insurance: All full-time employees are eligible to enroll in Medical, Dental, and Vision - Additional Benefits: Full-time employees are eligible for fertility, commuter, and educational assistance benefits - 401(K) Matching Plan: We are proud to offer a competitive 401k matching plan to our employees to support their future financial goals - Vacation: All salaried employees are eligible for flexible time-off - Holiday Pay: All regular, full-time employees are eligible for ten company paid holidays - Employee Discounts: Employees receive discounts on select grading services for approved submissions - Flexible Hours: Many of our teams offer flexible schedules with varying shifts and will work with you to accommodate your needs - Fun Working Environment: Our team members are invited to participate in celebrations, holiday events, and team building activities #LI-Remote #BI-Hybrid #BI-Remote Collectors 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 people@collectors.com. 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 people@collectors.com. 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. If you are based in California, you can read information for California residents here.

Description Backend Platform Engineer ( Staff / Principal Level) Why YOU want this position At Enverus, we're committed to empowering the global quality of life by helping our customers make energy affordable and accessible to the world. We are the most trusted energy-dedicated SaaS company, with a platform built to maximize value from generative AI, and our innovative solutions are reshaping the way energy is consumed and managed. By offering anytime, anywhere access to analytics and insights, we're helping our customers make better decisions that help provide communities around the world with clean, affordable energy. The energy industry is changing fast. But we've continued to lead the way in energy technology, creating intelligent connections across the entire energy ecosystem, from renewables, power and utilities to oil and gas and financial institutions. Our solutions create more efficient production and distribution, capital allocation, renewable energy development, investment and sourcing, and help reduce costs by automating crucial business operations. Of course, this wouldn't be possible without our people, which is why we have built a team of individuals from a diverse range of backgrounds. Are you ready to help power the global quality of life? Join Enverus, and be a part of creating a brighter, more sustainable tomorrow. As part of the Power & Energy Transition business unit, you'll work on systems that support congestion analysis, forecasting, and grid optimization for renewable energy markets. Our platform combines distributed systems, machine learning, complex power flow analysis and optimization models with high-throughput data processing to deliver critical insights in real time. We're looking for engineers who enjoy solving difficult infrastructure and platform problems while collaborating closely with product, data science, and domain experts. The Team: As part of the Marginal Unit Team, you will be a key contributor to the fastest growing product line at Enverus. We pair complex algorithms and machine learning with powerful computational infrastructure and an intuitive UI that is unmatched in the industry. Small, fast paced, and highly collaborative, this team values engineers who enjoy tackling difficult technical and domain problems while continuously learning from one another. Engineers on this team own systems end-to-end, including architecture, implementation, observability, reliability, and operational support. What Y ou'll D o: - Integrate AI - powered infrastructure and capabilities into our products - Design and maintain high-throughput data ingestion and processing pipelines - Build and support complex computing algorithms and infrastructures - Take ownership of existing systems and services, redesigning them as necessary to reduce complexity or leverage new technologie - Lead architectural initiatives and influence engineering standards across team Challenges You'll Face: - Highly complex domain (the power grid itself, and the markets that sit on top of it) - Continuously evolving solution stack on the frontier of AI development - Stability and observability of a distributed system involving dozens of semi-independent services - Maintaining performance while working with complex computations on large-scale real-time data What you'll have: - BS in Computer Science, or equivalent experience - Significant experience working with data rich applications and pipelines - Experience learning and working in a highly complex domain (financial trading or power systems is a plus) - Proven success in delivering highly reliable and scalable software systems - Experience working within and optimizing systems that perform expensive computations - Experience building backend applications using Python, Go or Rust - Experience using Kafka, SQL and no-SQL databases - Familiarity with Kubernetes on GCP or AWS Our Technology Stack: - Python, Go, Rust - Kafka, MySQL, ClickHouse - Kubernetes, Docker, AWS, Argo - Grafana, Sentry, Honeycomb - Terraform, Pulumi - Claude, AWS Bedrock, Langchain, AgentCore What We Offer - Fast paced environment with a strong team and interesting products - Competitive Compensation Package - Medical, Dental, and Vision Plan - Retirement Savings Plan 401(k) Not e Scope and expectations will be calibrated based on experience level. Principal-level candidates are expected to drive technical strategy across multiple teams and influence architecture at organizational scale. This role is eligible for: Variable Compensation Salary Range: 170000

• Maintain and enhance in-house web applications developed in Classic ASP. • Support and administer integrations with the Visual Files case management/document management system. • Develop and modify front-end website functionality, forms, workflows, and user interfaces. • Troubleshoot application, database, and integration issues. • Perform system testing, bug fixes, and application upgrades. • Maintain technical documentation and system architecture records. • Liaise with internal stakeholders to gather requirements and implement enhancements. • Ensure security, performance, and availability of legacy applications. • Provide ad hoc technical support and advice regarding Visual Files and related systems.

Provide administrative support by managing calendars, coordinating meetings, and assisting with fundraising projects. Facilitate partner communications, oversee project management, and contribute to marketing initiatives to enhance strategic...