This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Customer Operations Engineer 3 based in United States. This role is a senior technical position focused on designing, implementing, certifying, and managing complex on-premises and cloud-based customer solutions. You will operate at a Tier 3 level, resolving sophisticated technical issues while supporting field engineers, customers, partners, vendors, and internal teams. The position combines hands-on engineering, troubleshooting, product certification, testing, and operational support across modern connectivity and communications technologies. You will collaborate closely with project management, product, sales, engineering, and support teams to deliver reliable and scalable solutions. The role also contributes to continuous improvement through detailed testing, process documentation, training, and engineering handoffs. Success requires strong technical judgment, analytical thinking, and the ability to make calculated decisions in a fast-paced environment. This is an opportunity for an experienced engineer to play a critical role in maintaining high-quality technology services while helping evolve new products and solutions.