Collectors

Senior Software Engineer, Full-Stack (PSA Liquidity Platform)

US - Remote · Senior · Full-time

Sponsorship not specified$141k-$229kDetected 28 days ago

JavaReactSvelteSpringFull-Stack DevelopmentAWSKubernetesDatadogKafkaMachine LearningLogisticsLeadershipCollaboration

About the role

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.

Responsibilities

Build powerful buyer tooling.
Lead development of our next-generation buyer platform: targeting, campaign management, budget controls, and analytics that let every type of buyer - from individual collectors to large-scale dealers - discover and acquire the right cards at scale.
Build and optimize the matching engine. Partner with Engineering and AI/ML to build a sophisticated, real-time targeting and ranking engine that maximizes GMV, conversion, and offer-to-sale velocity across channels.
You'll make pragmatic, high-conviction architecture calls and own the quality of what you ship across the full stack.
Take an AI-first approach to building. Use AI tooling across the development lifecycle to move faster and raise quality, and bring a strong point of view on how AI changes the way we design, build, and operate software.
Own outcomes end-to-end. Take projects from 0 to 1 - from an ambiguous problem to a shipped, instrumented, production product - and wear whatever hat the moment requires, whether that's frontend, backend, infrastructure, or data.
Drive cross-functional execution. Translate strategy into clear technical plans, specs, and user stories. Coordinate delivery across dedicated and partner engineering teams, and keep stakeholders aligned and projects moving.
Distributed-systems depth. You've designed and operated microservices and Kafka-based event-driven architectures, run workloads on Kubernetes, and know your way around the AWS ecosystem.
Observability-first mindset. You instrument what you ship using tools such as Datadog, New Relic, or OpenTelemetry. You're comfortable building dashboards, setting up monitoring/alerting, and using distributed tracing to debug production issues.
401(K) Matching Plan: We are proud to offer a competitive 401k matching plan to our employees to support their future financial goals

Requirements

You have a track record of designing, shipping, and scaling products 0-to-1 that have measurable business impact.
Ideally 2+ years operating as a Senior IC or equivalent technical leadership level at a high-growth company or a scaled consumer platform.
You have strong proficiency in Java (Spring Boot) and equally comfortable in modern frontend frameworks like React and Svelte, moving fluidly across the stack.
You naturally decompose complex, multi-service systems into clean boundaries and intuitive interfaces, without losing sight of the customer experience.
You have an extreme ownership mindset and will wear any hat required to get the job done.

Nice to have

Architect for scale.
Elevate the seller experience.
Make it effortless for sellers to understand their options, price their items accurately, and complete a sale with minimal friction.
Take projects from 0 to 1 - from an ambiguous problem to a shipped, instrumented, production product - and wear whatever hat the moment requires, whether that's frontend, backend, infrastructure, or data.
Translate strategy into clear technical plans, specs, and user stories.
Connect the ecosystem.
Ensure seamless liquidity handoffs across the broader PSA enterprise, from Grading to Collection Management to Vaulting, reducing friction and resolving cross-system dependencies that span payments, logistics, and risk.
Communicate with clarity at every level.

Compensation

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.
Holiday Pay: All regular, full-time employees are eligible for ten company paid holidays

Benefits

Full-time employees are eligible for fertility, commuter, and educational assistance benefits
Vacation: All salaried employees are eligible for flexible time-off
Holiday Pay: All regular, full-time employees are eligible for ten company paid holidays
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

Company info

All regular, full-time employees are eligible for ten company paid holidays
PSA Partner Offers is a first-party marketplace that sources offers from our network of buyers and surfaces them as instant, targeted offers to grading and vault customers.
Our eBay consignment business allows customers to seamlessly sell on the world's largest marketplace while we handle every step of fulfillment as eBay's official vault partner.
Design and operate microservices and distributed, event-driven systems that power instant, accurate offers across millions of collectibles - with the low latency and reliability our customers expect.
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.

Visa & Work Authorization

r, 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 app

Apply directly at Collectors →Create a free account for alerts like this View Collectors immigration profile

This listing is sourced directly from Collectors's careers page and normalized into a canonical job model.