Senior Software Engineer, Full-Stack – Power Packs

🕒 June 24

🏄 California – Remote

🏄 California – Remote

💵 $141k - $228.9k / year

⏰ Full Time

🟠 Senior

🧑‍💻 Full-stack Engineer

🦅 H1B Visa Sponsor

This company has sponsored H1B visas in the past.

👻 Ghost score 9%

What it means: how likely this posting is sitting open without active hiring.How to read it: 60% or higher means we think this is a ghost. Lower scores are less of a worry.How we score it: age, reposts, open roles vs team size, how fast jobs close, and whether pay is listed.Fine print: an estimate from public data, not a judgment of the company. Real jobs can score high, so treat it as a hint, not a fact.

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Collectors

WebsiteLinkedInAll Job Openings

1001 - 5000 employees

💼 Consulting

📣 Marketing

🛍️ eCommerce

Consulting • Marketing • eCommerce

Collectors is a company dedicated to helping collectors pursue their passion for collecting valuable and iconic items. They specialize in authenticating and grading collectibles, including rare baseball cards, coins, and memorabilia. Collectors offers industry-leading authentication and grading services, connecting a community of enthusiasts to help them grow their collections. Their products feature famous collectibles such as Mickey Mantle's 1952 Topps Baseball card, the 1913 Liberty Head nickel, and a Limited Edition Solid 20-karat Gold 20th Anniversary Pikachu. Collectors provides a platform for collectors to connect with others and build the future of collecting.

📋 Description

• Participate across the entire software development lifecycle, taking features from concept to production release • Build backend services, APIs, and data models that support customer-facing product experiences and internal operational workflows • Contribute to frontend application development using Javascript, Typescript, React, and NextJS to deliver seamless end-to-end experiences • Collaborate with Product, Engineering, and partner 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 distributed codebase • 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 • Leverage AI tooling, with a preference for Claude, to accelerate software design, architecture, and implementation while maintaining strong engineering judgment and code quality

🎯 Requirements

• 5+ years of software engineering experience building production applications, with substantial experience in backend systems and meaningful experience delivering frontend product work • 3+ years experience / strong proficiency in Java and the Spring Boot framework • Strong fundamentals working with databases and data modeling, both relational (e.g. PostgreSQL) and NoSQL (e.g. DynamoDB) • Experience designing and building APIs and service integrations that support scalable product development • 3+ years experience with modern frontend development using Javascript, Typescript, React, and NextJS • Experience with containerization and orchestration infrastructure (e.g. Docker, Kubernetes, ECS) • Experience collaborating with Engineering and Product teams to turn complex business requirements into clean, extensible systems and user experiences • Possess strong technical, analytical, troubleshooting, and communication skills with the ability to visualize and document processes • Proficient at using appropriate security, documentation, testing, and monitoring best practices • Familiar with Agile/Scrum methodologies • Comfortable using AI tooling, preferably Claude, to support solution design, system architecture, and software implementation in day-to-day engineering work.

🏖️ Benefits

• Health insurance • Retirement plans • Paid time off • Flexible work arrangements • Professional development opportunities • Bonuses