Senior Software Developer

We’re looking for a Senior Software Developer to take a leading role in developing and maintaining one of our software brands. This is a high-impact role where you’ll work across the full stack of a mature SaaS product used in real-world daily operations. You’ll collaborate closely with product, customer success, and other stakeholders to deliver features, improve performance, and maintain reliability. What You’ll Do

• Own the full application lifecycle - features, bugs, performance, and deployments
• Maintain and extend a large PHP/MySQL codebase
• Build new features driven by customer needs
• Work with third-party integrations
• Support multi-location and multi-tenant functionality
• Optimize database performance and queries
• Respond to production issues and ensure system reliability
• Collaborate with internal stakeholders on product direction and priorities
• Contribute to ongoing improvements in code quality and architecture

Technology Stack

• Backend: PHP
• Database: MySQL
• Frontend: JavaScript, jQuery, HTML/CSS
• Web Server: Apache
• Dependencies: Composer
• Integrations: Ecommerce, payments, messaging, reporting tools
• Architecture: Established monolithic PHP application with long-term production stability., * Onboarded and productive
• Understands core application flow
• Ships initial bug fixes or small features

First 90 days:

• Independently handling features and bug fixes
• Comfortable with deployment and integration workflows
• Strong understanding of system architecture

First 6 months:

• Owning significant areas of the product
• Delivering meaningful improvements
• Contributing to technical direction

About the Codebase - Transparency

• Large, long-running production system
• Primarily procedural PHP
• Limited automated testing today
• Emphasis on stability and incremental improvement

Do you have experience in Version control?, * 5+ years of professional PHP development experience

• Strong MySQL skills
• Solid JavaScript experience
• Experience working with APIs
• Familiarity with payment processing concepts
• Git proficiency
• Basic Linux/server knowledge
• Ability to work independently

Preferred:

• Experience with ecommerce integrations
• Experience with payment platforms
• Experience with messaging/email APIs
• Familiarity with multi-tenant SaaS architectures
• Experience working in legacy codebases
• Understanding of retail/POS concepts

Nice to Have:

• Experience in nonprofit or resale industries
• Familiarity with logistics or scheduling systems
• Experience with BI/reporting tools
• Interest in modernizing legacy systems, Applicants must be authorized to work for any employer in the U.S. We are unable to sponsor or take over sponsorship of an employment Visa at this time.

Pulled from the full job description

• 401(k)
• Health insurance
• Vision insurance
• Dental insurance, What We Offer
• Opportunity to build software that powers real-world commerce at scale.
• Competitive salary and equity package.
• Comprehensive benefits (health, dental, vision, 401k, etc.).
• Flexible work environment.
• Strong emphasis on engineering quality and career growth.

Ever wondered how your favorite local shops compete with the big guys? That’s where we come in. We’re Quilt Software, providing Main Street’s unsung heroes - from quirky cheese shops to family-run jewelry stores - with the tools they need to compete. Last year, we helped 14,000+ shops make over $2 billion in sales with our family of industry-specific software solutions.

If you get a kick out of supporting local businesses, love great software, and want to be part of a company that’s powering Main Street, we’d love to chat. Come join us in our quest to keep local retail not just alive, but thriving!