This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Senior Engineer (L3) based in United States. This role is an opportunity for an experienced IT professional to take ownership of complex technical escalations in a fast-paced managed services environment. You will serve as a senior technical resource, resolving advanced infrastructure, networking, server, cloud, security, and Microsoft technology issues. The position combines hands-on engineering with direct client communication and technical problem-solving. You will work across diverse client environments while helping improve reliability, documentation, and operational efficiency. Success in this role requires strong technical judgment, independence, and a commitment to delivering high-quality support. You will also have opportunities to expand your expertise through exposure to a broad range of enterprise technologies.