1099 Medical Sales Representative – Lumbar & SI Joint Fusion Solutions. Spine Fixx. Job Type. Independent Contractor (1099). About Spine Fixx. At **Spine Fixx**, we are redefining spinal care with innovative, minimally invasive solutions for lumbar and sacroiliac (SI) joint fusion. Our cutting-edge products are designed to enhance patient outcomes while offering physicians precision and reliability. We partner with healthcare professionals to bri...