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Overview
During this 8‑week assignment you will assist in a DCN replacement project across 70+ sites, migrating from the current network infrastructure to an alternative provider. The consultant will produce detailed designs, configuration templates, and operational playbooks to support the rollout.
Key Responsibilities
* Analyse current DCN architecture and configurations.
* Design replacement architecture using Cisco, Juniper and Palo Alto combinations.
* Produce High‑Level Design (HLD) and Low‑Level Design (LLD) documents.
* Create configuration templates for firewalls, switches, and routers.
* Develop deployment playbooks for internal teams.
* Define Bill of Materials (BoM) and licensing requirements.
* Write operational runbooks for failover, tunnel rekey, and certificate rollover.
* Define IPsec VPN topology (FlexVPN or DMVPN), dual‑WAN failover, and management plane security.
* Support zero‑touch provisioning Plug‑and‑Play (PnP) where applicable.
* Collaborate with internal teams for knowledge transfer and handover documentation.
Required Experience
* Proven experience in multi‑site network migrations, ideally Fortinet to Cisco.
* Deep expertise in Firewalls, Routers, Switches and cellular devices.
* Strong understanding of IPsec VPN, FlexVPN, DMVPN.
* Knowledge of zero‑touch provisioning, PnP, and template orchestration.
* Understanding of management plane security, RBAC, AAA.
* Ability to produce clear, reusable documentation and configuration artefacts.
Desirable Skills & Knowledge
* Demand management, strategic planning, and infrastructure analysis.
* Information assurance, governance, and quality management.
* Experience with Fortinet NSE (for comparative analysis).
Qualifications
Essential:
* CCNP Security or CCNP Enterprise
* Cisco Certified Design Professional (CCDP)
Desirable:
* Cisco CyberOps Associate or CCIE Security
* Fortinet NSE certification
Key Performance Indicators (KPIs)
* Delivery of HLD, LLD, and configuration templates within 4‑week engagement.
* Stakeholder satisfaction and engagement in design processes.
* Quality and completeness of documentation and playbooks.
* Successful knowledge transfer to internal teams.
SFIA 9 Skill Alignment
* DESN (Systems Design) – Level 6
* NTDS (Network Design) – Level 6
* INAN (Infrastructure Analysis) – Level 5
* SCTY (Information Security) – Level 5
* RLMT (Release and Deployment) – Level 5
* HSIN (Systems Integration) – Level 5
About Indigo
At Indigo, you’ll join an inclusive culture that values diversity, integrity, and merit, empowering you to reach your full potential. We welcome candidates from all backgrounds, especially those under‑represented in our industry, including women, people with disabilities, and LGBTQ+ individuals. As a leader in the telecoms industry, Indigo offers endless opportunities for personal and professional growth in a dynamic market projected to expand from US $1,657.70 billion in 2020 to US $2,395.47 billion by 2027. With over two decades of experience and a presence in 90+ countries, we specialise in cutting‑edge technologies such as Fixed Line, 5G, Edge DC, and Subsea. Recognised as one of the UK’s top‑performing privately‑owned technology companies, we prioritise the well‑being and growth of our employees, fostering a respectful and inclusive atmosphere with over 30 nationalities. Our commitment to sustainability and innovation ensures a brighter future. As a proud recipient of the ‘Investors in People’ Gold Award, we invest in your growth and development. Join Indigo and make a real difference in an organisation that offers unparalleled opportunities at the right place and time.
Seniority Level
Mid‑Senior level
Employment Type
Full‑time
Job Function
Information Technology
Industries
Telecommunications
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