Senior Full Stack Developer — B2 B Pipeline
About the Role
We are looking for a Senior Full Stack Developer to take technical ownership of key capabilities within our B2 B Saa S platform and partner pipeline.
This is a hands-on engineering role for an experienced developer who has previously built or supported B2 B Saa S capabilities such as enterprise authentication/SSO, third-party API integrations, payment workflows, multi-tenant applications, partner administration, and customer-facing analytics.
The developer will work primarily within a Laravel/PHP-based platform supporting multiple partner types, from smaller co-branded organizations to larger enterprise customers requiring deeper integrations and configurable workflows.
The ideal candidate can independently take a business requirement from discovery through technical design, development, testing, and production deployment. We are specifically looking for someone whose prior experience aligns with the capabilities on our B2 B roadmap—not simply a generalist full stack developer.
Key Responsibilities
Own and deliver B2 B features and modules from requirements and technical design through development, testing, deployment, and ongoing support. Design and develop scalable, secure backend services and application functionality using Laravel and PHP. Design and maintain multi-tenant Saa S architecture supporting multiple business partners while maintaining appropriate separation of partner configuration and data. Build and enhance enterprise authentication and Single Sign-On (SSO) integrations for external partner organizations. Design and implement API integration frameworks that allow partner applications and portals to securely interact with the platform. Develop and maintain RESTful APIs, webhooks, application routing, and other integration mechanisms for real-time and asynchronous communication with external systems. Implement and maintain payment integrations and B2 B payment workflows, including payment proc