Senior Software Engineer, Back-End – Vault

Collectors

Senior Software Engineer building and scaling backend services for our collectibles platform. Collaborating with cross-functional teams to ensure reliable and secure asset management systems.

Posted 6/25/2026full-timeRemote • California • 🇺🇸 United StatesSenior💰 $140,971 - $228,870 per yearWebsite

Tech Stack

Tools & technologies

AWSCloudDistributed SystemsJava

About the role

Key responsibilities & impact

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

Requirements

What you’ll need

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.

Benefits

Comp & perks

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

ATS Keywords

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Hard Skills & Tools

software engineeringweb applicationsAPIsdistributed systemsAWSserverless architectureevent-driven architectureJavaC#OOP

Soft Skills

technical leadershipmentorshipcollaborationcommunicationproblem-solvingdesign reviewscode reviewscross-functional teamworkinfluenceinnovation