Technical Lead - F5 & Network Infrastructure
Location: Remote
Day Rate: £400 - £500
Contract Inside IR35 6 months
About the Role
We are seeking an experienced Technical Lead with deep expertise in F5 BIG-IP technologies to lead the design, delivery, and support of critical network and application delivery services. This role combines hands-on technical leadership with mentoring, project ownership, and stakeholder engagement.
You will act as a senior technical authority, guiding F5 deployments and migrations while supporting and developing junior engineers within a complex, multi-tenant environment.
Key Responsibilities
Lead the design, deployment, upgrade, and migration of F5 BIG-IP platforms, including LTM and GTM/DNS
Provide expert-level (3rd line) support for F5 systems, resolving complex incidents and proactively preventing issues
Own and drive technical projects end-to-end, coordinating with internal teams and stakeholders to meet delivery milestones
Maintain high-quality technical documentation, including network diagrams, configuration standards, and operational procedures
Delegate tasks across multiple workstreams, tracking progress and ensuring successful outcomes
Mentor and train junior engineers, fostering a culture of knowledge sharing and continuous improvement
Communicate clearly with technical and non-technical stakeholders, translating complex concepts into actionable insights
Key Skills & Experience
Advanced, hands-on experience with F5 BIG-IP (LTM and GTM/DNS)
Proven experience leading F5-focused technical projects (deployments, upgrades, migrations)
Strong troubleshooting and optimisation skills in enterprise-scale environments
Experience working with multi-tenant and virtualised platforms, including VIPRION and/or rSeries
Good general networking knowledge, including routing and switching
Working experience with ACI and Fortigate Firewalls
Strong organisational skills with the ability to manage multiple priorities simultaneously
Excellent written and verbal communication skills
Nice to Have
Experience with F5 HSM/FIPS
F5 Certifications (eg F5 Certified BIG-IP Administrator or Solution Expert)
Additional networking or security certifications