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シニアネットワークエンジニア/ Senior Network Engineer

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A multinational telecommunications and data centre services company is looking for a Senior Network Engineer. The selected candidate will manage optical network capacity, forecast demand, coordinate infrastructure expansion, and improve overall network efficiency.

Responsibilities:

  • Monitor optical network capacity, performance trends, and potential bottlenecks
  • Forecast network demand using historical data, utilisation trends, and sales pipelines
  • Plan and initiate capacity expansions based on investment needs and delivery timelines
  • Coordinate infrastructure, equipment, fibre, and licence delivery with internal teams and vendors
  • Support capacity checks, feasibility assessments, and technical requirements during pre-sales and service delivery
  • Track delivery plans, optimise unused capacity, and maintain performance dashboards and KPIs

Requirements:

  • Bachelor’s degree or above in Electronics & Communication" Engineering
  • Experience in DWDM/OTN technologies from Ciena, Nokia, Fujitsu, and ADTRAN
  • Prio experience in network planning and design- Link Engineering, Simulation, HLD/LLD creation, BOM creation, design validation, and building job packs for field teams
  • Proven experience in optical capacity management, utilisation analysis, forecasting, and proactive/reactive builds
  • Knowledge of ROADM, photonic nodes, shelves, transponders, and mux/demux systems

Preferred requirements:

  • Experience improving end‑to‑end capacity delivery processes, reducing lead times,
    defining SLAs, and standardising deployment guidelines
  • Prior experience with network functional testing, benchmarking, failure reproduction, and issue validation
  • Background in automation and digitalisation of planning processes, including AI‑driven forecasting and automated monitoring
  • Understanding of designing customer‑specific optical solutions and bespoke delivery requirements
  • Familiarity with SDN Orchestrator platforms such as for service provisioning over multivendor optical environments

About the Company:

A multinational company providing telecommunications and data centre services to businesses of various sizes around the world. Headquartered in Europe, the company has a large international presence and operates in many major cities across a number of countries.

Keywords:

インフラ, IT, ハードウェア, ソフトウェア, ネットワークサービス, マネージメント, 求人, 外資系

Job Ref: CD5T11

Contract Type: Perm

Specialism: Information Technology

Focus: Network

Industry: Telecommunications

Salary: ¥8,000,000 - ¥14,000,000 per annum

Workplace Type: On-site

Experience Level: Mid Management

Location: Tokyo

Job Reference: CD5T11-2ECA2600

Date posted: 24 July 2026

Consultant: Jacob Trost