Staff Software Engineer, Full-Stack

Collectors is the leading creator of innovative technology that provides value-added services for collectors worldwide. They are seeking a Staff Software Engineer, Full-Stack to design and build scalable cloud-based systems, develop APIs and backend services, and improve existing systems to enhance performance and reliability.

Responsibilities:

• Design and build scalable cloud-based systems on AWS that power core collectibles platforms and experiences
• Develop APIs and backend services that enable seamless web and mobile customer journeys across buying, selling, authentication, and grading
• Own technical architecture and delivery of end-to-end features, from design through deployment, with staff-level influence across teams
• Work on highly intricate grading and authentication workflows that ensure trust, accuracy, and consistency at scale
• 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

Requirements:

• 7+ years of software engineering experience building web applications, APIs, and distributed systems at scale
• Experience at product-driven, tech-forward companies building service-oriented or microservice-based systems
• 3+ years of hands-on AWS experience, including serverless and event-driven architectures
• Use modern AI tools (e.g. Claude Cowork, 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), with deep proficiency in at least one object-oriented language and ability and willingness to work across languages such as Python, C#, or Java
• Familiarity with modern client-side frameworks (e.g., React, Next.js) and delivering consumer-facing digital experiences
• 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