Senior Infrastructure Network Architect - Migrations

慨正橡扯; Bristol; On-site; GBP 60,000 - 90,000; Full time

Benefits offered by this job

25 days holiday

Pension: 6% + 2%

Healthcare cover (Aviva)

Flexibenefit: £1000

Life Assurance

Income Protection

Eye test + glasses

Enhanced parental leave

Job summary

AND Digital is recruiting in Bristol for a network migration specialist to prepare and optimise production workloads for complex migrations. You will analyse DCI performance, fine‑tune routing and edge configurations, and resolve bottlenecks to ensure a resilient environment.

You will collaborate with infrastructure, migration, and network teams, conducting security reviews and providing guidance throughout the programme.

Qualifications

• Experience reviewing and optimizing network topology before major migrations.
• Ability to analyse Data Centre Interconnect performance and live traffic patterns.
• Proficiency in tuning routing protocols and edge configurations to reduce latency.
• Experience identifying bottlenecks and risks to maintain a resilient, highly available environment.
• Experience conducting security reviews including firewall and perimeter policies.

Responsibilities

• Review and optimise the existing network topology to ensure it is fully prepared for the migration of critical production workloads.
• Analyse Data Centre Interconnect (DCI) performance and live traffic patterns, validating bandwidth and network capacity ahead of the monolithic cutover.
• Fine‑tune routing protocols, network paths and edge configurations to minimise latency and maximise performance for tightly coupled applications.
• Identify and resolve network bottlenecks, performance issues and potential risks to ensure a resilient and highly available environment.
• Conduct security hardening activities, including firewall, encryption and perimeter policy reviews, ensuring compliance with financial services security standards.
• Collaborate with infrastructure, network and migration teams to provide technical guidance, documentation and assurance throughout the migration programme.

Skills

Network design

Routing protocols

Security hardening

Performance analysis

Cross-functional collaboration

Job description

AND Digital is recruiting in Bristol for a network migration specialist to prepare and optimise production workloads for complex migrations. You will analyse DCI performance, fine‑tune routing and edge configurations, and resolve bottlenecks to ensure a resilient environment.

You will collaborate with infrastructure, migration, and network teams, conducting security reviews and providing guidance throughout the programme.