Senior Software Engineer (Ruby on Rails & React) in Portland

• Design, develop, and maintain full-stack web applications using Ruby on Rails and React.
• Build scalable, maintainable software solutions that support a high-volume e-commerce environment.
• Contribute across the entire application stack, from front-end experiences to backend architecture.

Develop Modern User Experiences

• Create intuitive, responsive, and high-performance user interfaces using React.
• Partner closely with Product and UX teams to deliver exceptional customer and internal user experiences.

Architect Backend Systems

• Design and maintain robust APIs, services, and database-driven applications using Ruby on Rails.
• Optimize application performance, scalability, and reliability across mission-critical systems.

Lead Technical Excellence

• Collaborate with engineering leadership on system architecture, technical strategy, and long-term platform evolution.
• Participate in code reviews, pair programming, and technical mentoring to elevate engineering standards across the team.

Drive Innovation

• Leverage AI-assisted development tools and emerging technologies to improve development velocity and code quality.
• Balance technical excellence with practical business outcomes and delivery timelines.

• 8+ years of professional software engineering experience.
• Expert-level experience developing and maintaining production applications with Ruby on Rails.
• Strong professional experience building modern front-end applications with React.
• Demonstrated success building full-stack applications where Ruby on Rails and React are primary technologies.
• Experience designing, deploying, and optimizing scalable APIs, databases, and distributed systems.
• Strong understanding of software architecture, system design, testing, and performance optimization.
• Ability to work independently, manage competing priorities, and lead technical problem-solving with minimal oversight.
• Excellent communication and collaboration skills.
• Must reside within commuting distance of Vancouver, WA and be available to work onsite two days per week.
• Local candidates only., * Experience with cloud infrastructure, DevOps practices, and CI/CD pipelines.
• Experience in e-commerce, logistics, fulfillment, or other high-growth technology environments.
• Familiarity with AI-assisted software development tools such as GitHub Copilot and Cursor.
• Experience mentoring engineers and contributing to technical leadership initiatives.

• Hybrid schedule: Monday-Friday with 2 required in-office days per week in Vancouver, WA
• Medical, Dental, and Vision Insurance
• Simple IRA with Company Match
• Paid Time Off (PTO)

ShirtSpace is hiring a Senior Software Engineer to help architect, build, and scale the systems that power our rapidly growing e-commerce platform. We are seeking an experienced full-stack engineer with deep expertise in Ruby on Rails and React who enjoys solving complex technical challenges and building software that directly impacts customers and business operations. This position requires regular in-office collaboration. Candidates must be located in the Vancouver, WA / Portland metro area or within a reasonable commuting distance of Vancouver, WA. Relocation assistance is not available for this role. At ShirtSpace, we are focused on efficiently connecting people to product. Engineering plays a critical role in building reliable, scalable systems that support our customers, streamline internal operations, and drive long-term growth.