Hamilton Barnes

About the Company

Founded in 2014 and with over 25 years of recruitment experience, we are committed to providing exceptional service to all our clients to help them secure the best talent and opportunities in the market. We provide a consultative and customer-focused recruitment solution, where customer service is paramount to the experience, specialising in recruitment in:

Enterprise & Wireless Networks:
Cisco Systems, Juniper Networks, Aruba Networks & Arista Networks

Network Automation:
Cisco DevNet, Python, Ansible, Terraform & Nornir

Network Security:
Palto Alto, Fortinet, F5, Infoblox, Checkpoint, ZScaler & Cisco Security

SD-WAN, IP Networks & Transmission Networks:
Nokia, Juniper Networks, Cisco Systems, Huawei, Ciena, Adtran, ADVA &
Infinera

Financial Networks:
Exchange Connectivity, Market Data (Multicast), Low Latency Trading
Infrastructure, Enterprise Financial Networks.

Radio Frequency Networks:
Satellite and Radio (VSAT, Radio Frequency & Microwave), Mobile Networks
(2G-5G, LTE & VoLTE).

Fibre Networks:
FTTX Installations, Network Build, Fibre Planning, Project Management,
Civils & Streetworks.

Project Management & Program Management:
Project Co-ordination, PMO Analyst, PMO Lead, Business Analyst, Project
Manager & Programme Manager

Service Delivery Management:
Service Delivery Manager, Service Delivery Co-ordinator, Service Transition,
Service Manager & Service Architect

Cyber Security:
SIEM/SOC, Endpoint Protection, Information Security, Anti virus, Cloud
Security & Red Team

Security Cleared Professionals:
SC Cleared, DV Cleared, CTC Cleared & NATO Cleared, SC & DV Cleared
Professional

We are proud to have developed long-term relationships with our clients.

Our goal is to become the recognised leader globally for Permanent and Contract recruitment solutions in our niche.

Listed Jobs

Company Name

Hamilton Barnes

Job Title

SC Cleared Splunk Engineer - 3-Month Contract - Fully Remote

Job Description

Job title SC Cleared Splunk Engineer – 3‑Month Contract – Fully Remote Role Summary A security‑cleared Splunk Engineer responsible for full lifecycle management of the Splunk platform (Enterprise or Cloud). Deliver architecture design, deployment, optimisation, and operational support for security monitoring, SOC analytics, and operational intelligence within a secure environment. Expectations - Provide expert hands‑on engineering and operational support for Splunk deployments. - Deliver measurable performance and detection improvements in a 3‑month engagement, with potential extension. - Maintain strict adherence to security policies and SC‑clearance requirements. Key Responsibilities - Design, build, and maintain Splunk infrastructure (indexers, search heads, forwarders, deployment servers). - Onboard, normalise, and optimise diverse log sources (security tools, OS logs, network devices, cloud platforms). - Develop, maintain, and refine Splunk dashboards, reports, and alerts for SOC and ops teams. - Tune searches, alerts, and data models to improve performance, reduce noise, and enhance detection capability. - Support incident investigation and root‑cause analysis with Splunk analytics. - Ensure platform scalability, reliability, and performance aligned with secure environment standards. - Collaborate closely with security, engineering, and operations stakeholders to implement enhancements. Required Skills - Active SC clearance (mandatory). - Extensive hands‑on experience as a Splunk Engineer. - Proven management of Splunk Enterprise or Splunk Cloud environments. - Deep knowledge of SPL, data models, and performance optimisation techniques. - Experience onboarding varied log sources (security tools, OS logs, network, cloud). - Understanding of security monitoring use cases and SOC operations. - Scripting/automation proficiency (Python or Bash preferred). - Strong analytical, problem‑solving, and communication skills. Required Education & Certifications - Relevant IT or cybersecurity degree or equivalent experience. - Splunk Certified Enterprise Search Head User and Splunk Certified Admin are highly desirable. - Additional security certifications (e.g., GCIH, GCIH, CISSP) beneficial but not mandatory.

London, United kingdom

On site

05-01-2026

Company Name

Hamilton Barnes

Job Title

Network Engineer - 6 months - Coventry

Job Description

**Job Title:** Network Engineer (6‑month contract) **Role Summary:** Provide administration, support, and troubleshooting for a mission‑critical, high‑availability enterprise network spanning LAN, WAN, wireless, and security domains. Collaborate with internal stakeholders and external vendors to deliver network upgrades, capacity planning, and documentation for a large‑scale environment. **Expectations:** - 4–5+ years delivering network projects in live customer environments, preferably involving refresh/upgrade programs. - Proven ability to create High‑Level Designs (HLDs) and Low‑Level Designs (LLDs) with architectural diagrams. - Strong analytical and problem‑solving skills; able to isolate and resolve network issues quickly. - Effective communication with stakeholders, vendors, and team members. **Key Responsibilities:** - Administer and support enterprise LAN, WAN, wireless, and security infrastructure. - Diagnose and troubleshoot complex network problems across Cisco and third‑party platforms. - Produce and maintain technical documentation, including configurations, builds, and design diagrams. - Gather detailed requirements from internal customers and translate them into network solutions. - Coordinate with third‑party vendors (cabling providers, ISPs) for service delivery and issue resolution. - Model, analyze, and plan network capacity and performance. - Install, upgrade, and configure network hardware and software (routers, switches, firewalls, load balancers, wireless controllers). - Perform packet capture and analysis using tools such as Wireshark or SolarWinds. **Required Skills:** - LAN/WAN design and implementation expertise; Cisco Nexus (1000v‑9000), Cisco 3900/3800 routers, Cisco 3700/3500/2900 switches. - Hands‑on experience with firewalls and security tech: Cisco ASA, Palo Alto, Check Point, Pulse Secure SSL VPN, VMware NSX. - Knowledge of authentication protocols: SAML, SSO, LDAP, Active Directory. - Proficiency with IPsec, GRE, HTTP/HTTPS, DNS, proxy, SSL/TLS. - Familiarity with F5 BIG‑IP load balancers and wireless technologies (WLCs, APs). - Ability to produce diagrams in Microsoft Visio. - Experience with packet capture/analysis tools (Wireshark/Ethereal, SolarWinds or equivalents). **Required Education & Certifications:** - Bachelor’s degree in Computer Science, Information Technology, Network Engineering, or related field **or** equivalent professional experience. - Preferred certifications: Cisco CCNA/CCNP, Cisco Certified Network Professional (CCNP) Data Center, Cisco Certified Network Professional (CCNP) Security, Palo Alto Networks PCNSE, Check Point CCSA/CCSE, or comparable vendor certifications.

Coventry, United kingdom

On site

06-01-2026

Company Name

Hamilton Barnes

Job Title

Aruba Network Engineer - 12 Months - Dublin - Outside IR35

Job Description

**Job Title** Aruba Network Engineer – 12‑Month Contract **Role Summary** Senior on‑site network engineer responsible for designing, deploying, and transitioning enterprise‑scale network solutions centered on Aruba technologies. Works closely with stakeholders, vendors, and operational teams to deliver high‑quality, change‑managed implementations on schedule. **Expectations** - Deliver expert network solutions that meet or exceed internal and customer standards. - Manage multiple concurrent projects, ensuring timely hand‑off to operational support. - Provide advanced technical support, troubleshooting, and escalation for accountable networks and services. - Maintain rigorous change management, documentation, and root‑cause analysis. - Participate in on‑call rotations and provide training to internal teams and customers. **Key Responsibilities** - Review and approve technical solutions with internal and customer stakeholders. - Produce detailed low‑level designs and implementation guides aligned with best‑practice standards. - Build, configure, and stage network environments for headquarters, branches, and distribution sites. - Implement and support network upgrades, deployments, and go‑lives, including occasional out‑of‑hours work. - Ensure deployments follow change‑management procedures to minimize service impact. - Conduct peer reviews of pre‑sales technical proposals for deployment feasibility. - Integrate network management, monitoring, and capacity‑planning into designs. - Provide advanced troubleshooting and technical escalation support for all accountable networks and services. - Collaborate with vendors to resolve complex hardware/software issues. - Contribute to problem resolution and produce root‑cause analysis documentation. - Participate in an on‑call rota when required. - Deliver systems and product training to internal teams and customers. - Work cross‑functionally to support major incident resolution. - Communicate clearly to both technical and non‑technical audiences and influence continuous improvement across processes and standards. **Required Skills** - 4+ years engineering experience in large, complex environments. - Proven ability to deliver customer solutions on schedule. - Strong WAN/LAN design skills with routing/switching protocol expertise. - Extensive hands‑on experience with Aruba technologies (Wireless, ClearPass, ACMP). - Experience with Aruba AirWave or Aruba Central is highly desirable. - Ability to manage multiple stakeholders and concurrent projects. - Excellent analytical, problem‑solving, and decision‑making abilities. - Strong written and verbal customer‑facing communication skills. - Adaptability to quickly master new technologies. - Knowledge of firewall technologies (Cisco ASA, Palo Alto) is a plus. **Required Education & Certifications** - Aruba ACMP certification – preferred (not mandatory). - Cisco CCNP or higher – preferred. - Aruba ACSP or HP Master ASE – desirable. ---

Dublin, United kingdom

On site

Junior

06-01-2026

Company Name

Hamilton Barnes

Job Title

Network Technical Solution Architect - 6 months - Leamington Spa

Job Description

**Job Title** Network Technical Solution Architect (Contract, 6 Months) **Role Summary** Lead the technical design and governance of large‑scale network transformations and automation initiatives. Deliver scalable, secure network solutions in collaboration with cross‑functional teams and external vendors, ensuring alignment with enterprise architectures and standards. **Expectations** - Provide architectural leadership for a 6‑month transformation programme. - Act as the primary network technologist for automation and project portfolios. - Deliver pragmatic, business‑aligned solutions that satisfy technical, security, and operational constraints. **Key Responsibilities** - Conduct feasibility and technical analysis; contribute to business cases and documentation. - Develop and present high‑level and detailed designs for Integration, Data, Infrastructure, Platform, and Security domains. - Create technical artefacts: server build sheets, firewall configurations, DNS specs, interface definitions, load‑balancing designs, certificate requirements. - Engage stakeholders, present designs to design authorities, and communicate requirements, risks, and dependencies. - Lead or co‑facilitate technical workshops with suppliers and internal teams. - Collaborate with third‑party vendors to ensure compliance with architectural and security standards. - Support Intelligent Process Automation (IPA) discovery, configuration standards, testing, deployment, and hypercare. - Contribute to IT roadmaps, reference architectures, patterns, and standards, particularly within IPA. - Define criteria for product and technology selection. - Mentor technical teams, including offshore staff, in an agile environment. **Required Skills** - 10+ years’ experience as a Solution Architect with cross‑technology delivery and engineering design. - Deep knowledge of network design best practices, security standards, monitoring, and error handling. - Proven ability to produce business‑aligned, pragmatic solutions. - Experience establishing technical standards for RPA, coding, or broader digital technologies. - Strong stakeholder engagement, communication, and presentation skills. - Leadership/mentoring experience, including offshore teams. - Comfortable in fast‑paced, agile transformation programmes. - Curious, proactive with a willingness to explore emerging technologies. **Required Education & Certifications** - Bachelor’s degree in Computing, Engineering, or a related technical discipline (or equivalent experience). - Relevant certifications (e.g., CCNP/CCIE, TOGAF, PMP, or equivalent) preferred.

Leamington spa, United kingdom

On site

Senior

06-01-2026