Lead Engineer, Packet Network Engineering at Colt… · Tokyo

Colt provides network, voice and data centre services to thousands of businesses around the world, allowing them to focus on delivering their business goals instead of the underlying infrastructure.

Why we need this role

The Senior Engineer, Asia Network Engineering, is responsible for the technical planning, validation, introduction, expansion, optimization, and lifecycle management of network services and infrastructure across the Asia region. The role acts as the regional engineering lead for service and network development activities, ensuring that business requirements are translated into scalable, operationally ready network solutions under Packet IP, Ethernet and software define WAN technologies.

The position works closely with Product Management, Network Expansion, Service Delivery, Service Assurance, Sales, Architecture, and Operations teams to support the successful introduction of new services, network growth initiatives, network optimization programs, and customer opportunities while maintaining engineering standards and operational excellence.

What you will do

• Lead technical assessment, feasibility review, and validation of new products and services for the Asia network.
• Conduct POCs, ORT/UAT activities, and ensure operational readiness of new technologies and services. Develop and support delivery, operational, and deployment processes for new service introductions.
• Design and plan network expansion projects, including capacity growth, topology enhancements, and infrastructure upgrades.
• Produce engineering deliverables including BOMs, rack layouts, implementation designs, and procurement requirements.
• Drive network optimization, modernization, and technology exit programs through detailed technical and business assessments.
• Prepare migration, consolidation, and cost optimization plans while supporting implementation activities.
• Provide Tier 4 engineering support for complex network architecture issues and root cause investigations.
• Support Sales, Product, Service Delivery, and Operations teams with technical guidance, bespoke solutions, and customer opportunities.
• Deliver technical documentation, operational handovers, and training to ensure successful transition into service and support teams.

What we're looking for

Must haves:

• Business level Japanese skill
• Strong experience in carrier-grade IP and Ethernet networking technologies.
• Technical expertise in: IPv4 / IPv6, IS-IS/OSPF, BGP, VLAN, MPLS and segment routing
• Knowledge of MEF-based services including EPL, EVPL, and ELAN.
• Experience with service provider network design, testing, and implementation.
• Hands-on experience with Network Management Systems (NMS), inventory platforms, and network operational tools.
• Good knowledge of Cisco and Juniper products, including IOS, IOS-XE, IOS-XR, and JunOS.
• Experience working with cross-functional teams including Product, Operations, Service Delivery, and Sales.
• Strong analytical and problem-solving skills.Ability to translate business requirements into practical engineering solutions.
• Excellent communication and stakeholder management skills.
• Strong customer focus and service-oriented mindset.Ability to work independently and take ownership of technical deliverables.
• Effective collaboration across local teams in Japan, across Asia and global teams.
• Continuous learning mindset with passion for emerging networking technologies.
• Ability to balance technical depth with commercial and operational considerations.

Might haves:

• Industry certifications such as Cisco, Juniper or equivalent service provider certifications. (e.g. CCNA)
• Business-level English communication skills.

What we offer you:

Looking to make a mark?

At Colt, you’ll make a difference. Because around here, we empower people. We don’t tell you what to do.

Instead, we employ people we trust, who come together across the globe to create intelligent solutions.

Our global teams are full of ambitious, driven people, all working together towards one shared purpose: to put the power of the digital universe in the hands of our customers wherever, whenever and however they want.

We give our people the opportunity to inspire and lead teams, and work on projects that connect people, cities, businesses, and ideas. We want you to help us change the world, for the better.

Diversity and inclusion

• Inclusion and valuing diversity of thought and experience are at the heart of our culture here at Colt. From day one, you’ll be encouraged to be yourself because we believe that’s what helps our people to thrive. We welcome people with diverse backgrounds and experiences, regardless of their gender identity or expression, sexual orientation, race, religion, disability, neurodiversity, age, marital status, pregnancy status, or place of birth.

Most recently we have:

• Signed the UN Women Empowerment Principles which guide our Gender Action Plan
• Trained 60 (and growing) Colties to be Mental Health First Aiders
• Please speak with a member of our recruitment team if you require adjustments to our recruitment process to support you. For more information about our Inclusion and Diversity agenda, visit our DEI pages.

Benefits

Our benefits support you through all parts of life, for both physical and mental health.

• Flexible working hours and the option to work from home.
• Extensive induction program with experienced mentors and buddies.
• Opportunities for further development and educational opportunities.
• Global Family Leave Policy.
• Employee Assistance Program.
• Internal inclusion & diversity employee networks.

A global network

• When you join Colt you become part of our global network. We are proud of our colleagues and the stories and experience they bring – take a look at ‘Our People’ site including our Empowered Women in Tech.