Why we need this role
We are seeking Optical Network Consultant in the network planning team who will ensure Colt’s optical network has the right capacity and capability in the right locations at the right time, supporting strategic planning, proactive capacity management, forecasting, and on-time service deliver. This role goes beyond hands‑on engineering and also focuses on sales & customer‑facing engagement, solution guidance, and technical leadership for the local engineering team.
What You Will Do
- Support Sales and Service Delivery during pre‑sales and delivery (capacity checks, feasibility, technical input).
- Serve as the technical lead for optical solutions, capacity strategy, and delivery feasibility.
- Lead discussions with customers/partners on architecture, handoff, resilience, and future‑ready designs.
- Monitor network utilization and performance to identify and prevent bottlenecks early.
- Forecast demand using trends, run‑rate, and pipeline to plan capacity proactively.
- Drive timely capacity expansions, balancing investment and delivery needs.
- Coordinate with Supply Chain, vendors, and delivery teams to ensure timely resources and deployment.
- Identify optimization opportunities to improve efficiency and reduce costs.
- Maintain planning standards and design inputs for Ciena and Nokia platforms.
- Track end‑to‑end delivery plans, risks, and dependencies to meet commitments.
- Define and manage KPIs, dashboards, and reporting aligned with business goals.
What we're looking for
- Business-level proficiency in Japanese and English
- Senior-level expertise in DWDM/OTN technologies (e.g., Ciena, Nokia, Fujitsu, ADTRAN, or equivalent)
- Experience working directly with customers, sales, and service delivery in a technical advisory capacity
- Strong understanding of optical network architecture, including ROADM systems, transponders, and photonic design principles
- Ability to support network planning and design decisions (capacity strategy, resilience, technology selection)
- Effective stakeholder management across Sales, Service Delivery, Engineering, Architecture, and leadership teams
- Strong communication skills, balancing technical depth with clear business outcomes
- Experience driving optimization initiatives (e.g., capacity reuse, license optimization, asset recovery)
- Comfortable operating as a senior individual contributor, providing technical leadership without direct reports
- Experience improving networks through innovation, optimization, and process enhancements
- Ability to support large-scale network expansion or transformation projects (e.g., overlays, subsea upgrades, proactive builds, node exits, regulatory programs)
Other preferences
- Experience with automation and digitalization of planning, including AI‑based forecasting and automated monitoring.
- Proven track record in improving end‑to‑end capacity delivery (shorter lead times, defined SLAs, standardized processes).
- Knowledge of designing customer‑specific optical solutions and tailored delivery requirements.
- Experience in network testing, benchmarking, fault reproduction, and issue validation.
- Understanding of SDN orchestrator platforms for service provisioning in multi‑vendor optical environments.
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.