Senior UC Engineer

The Senior Unified Communications Engineer’s primary role will be responsible for designing, implementing, migrating, and supporting complex Cisco Unified Communications and UCaaS environments. This role will focus on large-scale On-Prem Cisco CUCM to Webex Calling Cloud migrations for one of the world’s largest financial institutions, while ensuring stability, scalability, and an excellent collaboration experience for employees and clients.

This position will act as an individual contributor and will be part of the company’s Global Unified Communications Engineering team, which owns the design, development, delivery, and overall experience of Unified Communications platforms across the enterprise.

Responsibilities

• Perform the design, implementation, migration, and ongoing management of the company’s Cisco Unified Communications and Webex Calling environment.
• Take end-to-end ownership of highly complex UC projects, including planning, execution, migration, validation, and post-go-live support.
• Lead end‑to‑end delivery of complex UC and UCaaS projects, including planning, execution, migration, validation, and post‑go‑live support.
• Drive on‑prem Cisco UC (CUCM) to Webex Calling Cloud migrations, covering user and device migration, hybrid configurations, and integration using CUBE as Local Gateway.
• Administer and support Cisco UC platforms including CUCM, Unity Connection, Expressway (C & E, MRA), CUBE, Webex Control Hub, and Webex Contact Center, along with upgrades, patching, certificate management, and lifecycle activities.
• Collaborate with business stakeholders, vendors, and internal technical teams to define solution designs, implementation plans, technical standards, and best practices.
• Develop and maintain runbooks, operational procedures, and support documentation, while monitoring system health using tools such as Splunk, Grafana, or equivalent platforms.
• Provide advanced incident management, troubleshooting, and strategic guidance, including architecture presentations, migration strategies, technology roadmaps, and compliance with security and governance standards.

• 8+ years of experience designing, implementing, migrating, and supporting Cisco Unified Communications solutions in large enterprise environments.
• Strong hands-on experience with Cisco CUCM, Unity Connection, Expressway (E & C / MRA), CUBE, and Webex Control Hub.
• Proven experience with On-Prem to Webex Calling Cloud migration projects.
• Solid understanding of Cisco Webex Calling and Webex Contact Center design and implementation.
• Experience with VMware ESXi and vCenter supporting UC workloads.
• Strong knowledge of UC protocols including SIP, MGCP, and networking fundamentals such as VLANs, NAT, and routing.
• Understanding of UC platform lifecycle management, capacity planning, and high-availability design.
• Hands-on experience with system upgrades, patching, certificate management, and operational support.
• Exposure to monitoring and observability tools such as Splunk, Grafana, or similar solutions.
• Strong troubleshooting skills with the ability to resolve complex and non-complex UC issues.
• Excellent customer service mindset with strong follow-up, documentation, and organizational skills.
• Strong written and verbal communication skills with proven experience collaborating with global teams and stakeholders.
• Understanding of ITIL-based operational processes is preferred.

Nice to have:

• Cloud platform knowledge: Azure, Entra ID, AWS
• Experience with automation and API integrations
• Programming or scripting experience (Python, JavaScript, or similar)
• Exposure to hybrid or multi-cloud UC architectures

We offer:

• Culture of Relentless Performance: join an unstoppable technology development team with a 99% project success rate and more than 30% year-over-year revenue growth.
• Competitive Pay and Benefits: enjoy a comprehensive compensation and benefits package, including health insurance, and a relocation program.
• Work From Anywhere Culture: make the most of the flexibility that comes with remote work.
• Growth Mindset: reap the benefits of a range of professional development opportunities, including certification programs, mentorship and talent investment programs, internal mobility and internship opportunities.
• Global Impact: collaborate on impactful projects for top global clients and shape the future of industries.
• Welcoming Multicultural Environment: be a part of a dynamic, global team and thrive in an inclusive and supportive work environment with open communication and regular team-building company social events.
• Social Sustainability Values: join our sustainable business practices focused on five pillars, including IT education, community empowerment, fair operating practices, environmental sustainability, and gender equality.

* Miratech is an equal opportunity employer and does not discriminate against any employee or applicant for employment based on race, color, religion, sex, national origin, age, disability, veteran status, sexual orientation, gender identity, or any other protected status under applicable law.

Miratech helps visionaries change the world. We are a global IT services and consulting company that brings together enterprise and start-up innovation. Today, we support digital transformation for some of the world's largest enterprises. By partnering with both large and small players, we stay at the leading edge of technology, remain nimble even as a global leader, and create technology that helps our clients further enhance their business. We are a values-driven organization and our culture of Relentless Performance has enabled over 99% of Miratech's engagements to succeed by meeting or exceeding our scope, schedule, and/or budget objectives since our inception in 1989.
Miratech has coverage across 5 continents and operates in over 25 countries around the world. Miratech retains nearly 1000 full-time professionals, and our annual growth rate exceeds 25%.