Technical Lead - F5 & Network Infrastructure

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