Security Architect (AppSec and Network Security) - B2B

Added 06/04/2026

Role: Security Architect (AppSec and Network Security) - B2BDuration: 6-month rolling contractWorking Pattern: Krakow, Hybrid (handful of days per month)GCS Cyber are partnered with a global financial services organisation undergoing multiple large-scale transformation programmes across their Cyber Security division. They are now looking for a Security Architect who has extensive experience managing end-to-end solution designs within large-scale transformation programmes with a heavy focus on Network Security and Application Security Proven experience producing high-level solution designs in line with business requirements.Proven ability to conduct security assessments and threat modelling to inform design decisions.Strong background in cybersecurity, with deep expertise in network...

Network Security Engineer

Added 12/05/2026

Network Security EngineerContractLocation: Remote / Hybrid (Amsterdam)Contract Length: 6-12 months Start Date: ASAP Rate: CompetitiveAbout the RoleOur client, a leading gaming company, is seeking an experienced Network Security Engineer Contractor to support a large-scale merger and acquisition integration. The organisation has recently acquired a studio with a significantly different technology estate, and now requires a specialist to help consolidate, secure, and stabilise the combined network infrastructure.This role is critical in ensuring the security, interoperability, and reliability of both legacy and acquired networks during the integration phase.Key ResponsibilitiesNetwork Security Integration & HardeningAssess, analyse, and map the acquired company's network and security...

Network Security Engineer

Added 07/04/2026

Network Security EngineerContract Location: Remote / Hybrid (Amsterdam)Contract Length: 6-12 months Start Date: ASAP Rate: CompetitiveAbout the RoleOur client, a leading gaming company, is seeking an experienced Network Security Engineer Contractor to support a large-scale merger and acquisition integration. The organisation has recently acquired a studio with a significantly different technology estate, and now requires a specialist to help consolidate, secure, and stabilise the combined network infrastructure.This role is critical in ensuring the security, interoperability, and reliability of both legacy and acquired networks during the integration phase.Key ResponsibilitiesNetwork Security Integration & HardeningAssess, analyse, and map the acquired company's network and...

Network Security Consultant

Added 27/05/2026

Senior Network Security Consultant (DORA Programme) - ContractLocation: Fully Remote (Europe)Preferred Location: PolandContract Duration: 12 months initial (strong likelihood of extension)Start Date: ASAP OverviewWe are supporting a major European financial services organisation on a large-scale DORA compliance programme and are looking to onboard multiple Senior Network Security Consultants on a contract basis.This is a high-impact engagement focused on delivering third-party infrastructure and security assessments at scale. You will join an established Cloud & Network Security function, contributing to critical regulatory compliance activities. The RoleAs a Senior Consultant, you will operate at a strategic and advisory level, focusing on assessment, architecture...

911 Network Planning Engineer

Added 08/07/2026

🚨 Hiring: 911 Network Planning Engineer II 📍 Location: Remote 📅 Duration: 12-Month ContractWe are seeking an experienced 911 Network Planning Engineer II to support the design, deployment, and optimization of mission-critical 911 and NG911 networks.Key ResponsibilitiesManage 911 DS0/DS1 and SIP circuit installations, modifications, and disconnectsSupport network planning, rehomes, upgrades, and maintenance activitiesMonitor network capacity, utilization, and resiliencyCollaborate with PSAPs, LECs, and NG911 partnersEnsure network compliance, reliability, and operational excellenceDrive process improvements and support long-term network stabilityPreferred Qualifications6+ years of experience in 911 networking, telecom network planning, or related rolesStrong knowledge of legacy 911 and NG911 architecturesExperience with TDM and...

911 Network Planning Engineer

Added 08/07/2026

🚨 Hiring: 911 Network Planning Engineer II 📍 Location: Remote 📅 Duration: 12-Month ContractWe are seeking an experienced 911 Network Planning Engineer II to support the design, deployment, and optimization of mission-critical 911 and NG911 networks.Key ResponsibilitiesManage 911 DS0/DS1 and SIP circuit installations, modifications, and disconnectsSupport network planning, rehomes, upgrades, and maintenance activitiesMonitor network capacity, utilization, and resiliencyCollaborate with PSAPs, LECs, and NG911 partnersEnsure network compliance, reliability, and operational excellenceDrive process improvements and support long-term network stabilityPreferred Qualifications6+ years of experience in 911 networking, telecom network planning, or related rolesStrong knowledge of legacy 911 and NG911 architecturesExperience with TDM and...

911 Network Planning Engineer

Added 08/07/2026

🚨 Hiring: 911 Network Planning Engineer II 📍 Location: Remote 📅 Duration: 12-Month ContractWe are seeking an experienced 911 Network Planning Engineer II to support the design, deployment, and optimization of mission-critical 911 and NG911 networks.Key ResponsibilitiesManage 911 DS0/DS1 and SIP circuit installations, modifications, and disconnectsSupport network planning, rehomes, upgrades, and maintenance activitiesMonitor network capacity, utilization, and resiliencyCollaborate with PSAPs, LECs, and NG911 partnersEnsure network compliance, reliability, and operational excellenceDrive process improvements and support long-term network stabilityPreferred Qualifications6+ years of experience in 911 networking, telecom network planning, or related rolesStrong knowledge of legacy 911 and NG911 architecturesExperience with TDM and...

911 Network Planning Engineer

Added 08/07/2026

🚨 Hiring: 911 Network Planning Engineer II 📍 Location: Remote 📅 Duration: 12-Month ContractWe are seeking an experienced 911 Network Planning Engineer II to support the design, deployment, and optimization of mission-critical 911 and NG911 networks.Key ResponsibilitiesManage 911 DS0/DS1 and SIP circuit installations, modifications, and disconnectsSupport network planning, rehomes, upgrades, and maintenance activitiesMonitor network capacity, utilization, and resiliencyCollaborate with PSAPs, LECs, and NG911 partnersEnsure network compliance, reliability, and operational excellenceDrive process improvements and support long-term network stabilityPreferred Qualifications6+ years of experience in 911 networking, telecom network planning, or related rolesStrong knowledge of legacy 911 and NG911 architecturesExperience with TDM and...

911 Network Planning Engineer

Added 08/07/2026

🚨 Hiring: 911 Network Planning Engineer II 📍 Location: Remote 📅 Duration: 12-Month ContractWe are seeking an experienced 911 Network Planning Engineer II to support the design, deployment, and optimization of mission-critical 911 and NG911 networks.Key ResponsibilitiesManage 911 DS0/DS1 and SIP circuit installations, modifications, and disconnectsSupport network planning, rehomes, upgrades, and maintenance activitiesMonitor network capacity, utilization, and resiliencyCollaborate with PSAPs, LECs, and NG911 partnersEnsure network compliance, reliability, and operational excellenceDrive process improvements and support long-term network stabilityPreferred Qualifications6+ years of experience in 911 networking, telecom network planning, or related rolesStrong knowledge of legacy 911 and NG911 architecturesExperience with TDM and...

911 Network Planning Engineer

Added 08/07/2026

🚨 Hiring: 911 Network Planning Engineer II 📍 Location: Remote 📅 Duration: 12-Month ContractWe are seeking an experienced 911 Network Planning Engineer II to support the design, deployment, and optimization of mission-critical 911 and NG911 networks.Key ResponsibilitiesManage 911 DS0/DS1 and SIP circuit installations, modifications, and disconnectsSupport network planning, rehomes, upgrades, and maintenance activitiesMonitor network capacity, utilization, and resiliencyCollaborate with PSAPs, LECs, and NG911 partnersEnsure network compliance, reliability, and operational excellenceDrive process improvements and support long-term network stabilityPreferred Qualifications6+ years of experience in 911 networking, telecom network planning, or related rolesStrong knowledge of legacy 911 and NG911 architecturesExperience with TDM and...

Network Engineer

Added 07/07/2026

Job Title: Network EngineerJob Description:We're seeking a skilled Network Engineer to support the nationwide deployment and maintenance of Comcast's virtual Cable Modem Termination Systems (vCMTS) and Remote PHY (RPHY) turn-ups. This cutting-edge, cloud-based vCMTS technology replaces traditional analog hardware, enabling faster speeds, improved network performance, and enhanced reliability for Xfinity customers, ensuring reliable activation of next‑generation access network (NGAN) platforms. As part of the NGAN Operations Team, the engineer will be responsible for vCMTS platform stand‑up, including software installation, system validation, network configuration, and ongoing maintenance. By shifting core CMTS functions to edge compute infrastructure, Comcast achieves greater agility, cost...

Network Engineer

Added 07/07/2026

Job Title: Network EngineerJob Description:We're seeking a skilled Network Engineer to support the nationwide deployment and maintenance of Comcast's virtual Cable Modem Termination Systems (vCMTS) and Remote PHY (RPHY) turn-ups. This cutting-edge, cloud-based vCMTS technology replaces traditional analog hardware, enabling faster speeds, improved network performance, and enhanced reliability for Xfinity customers, ensuring reliable activation of next‑generation access network (NGAN) platforms. As part of the NGAN Operations Team, the engineer will be responsible for vCMTS platform stand‑up, including software installation, system validation, network configuration, and ongoing maintenance. By shifting core CMTS functions to edge compute infrastructure, Comcast achieves greater agility, cost...

Network Support Engineer

Added 07/07/2026

We're seeking a Network Support Engineer to join a renowned IT services and digital infrastructure company. This is an exciting role for any person looking continue a career in networking and security technologies. It will involve interaction with some of the country's leading technical architects and design engineers in the Aruba Clearpass and Juniper arenas. What you'll be doingSupport customers' Juniper and Aruba network / security environmentsProvide first and second level support for all reported incidentsIncident management from initial customer engagement to resolution ensuring adherence to SLA's. Troubleshooting of such incidents utilising vendor partners for technical assistance and other team...

Senior IP Network Engineer

Added 07/07/2026

Senior IP Network EngineerWe are seeking an experienced Network Engineer to design and deliver secure, scalable enterprise network solutions across LAN, WAN, Data Centre and Wireless environments. The role combines technical design, implementation, migration planning and deployment leadership.*Unfortunately this role does not offer sponsorship and candidates must already have the right to work in Ireland Responsibilities:Produce design and implementation documentation.Lead network and security deployments, migrations and cutovers.Work with architects, project managers and security teams.Provide technical consultancy throughout the project lifecycle.Key Skills:Cisco Routing & Switching (Catalyst, Nexus, ACI)BGP, OSPF, EIGRP, VRFs, VLANs, QoS, VXLAN, HSRP/VRRPEnterprise LAN, WAN and Data Centre design...

Optical Network Engineer

Added 06/07/2026

We're partnering with a leading global technology company to hire an experienced Optical Netwrok Engineer for a high-impact contract role. You'll be operating with one of the world's most complex, large-scale optical networks.What you'll be doingOperate and support DWDM optical networks over fibre infrastructure.Handle fibre and optical network events (e.g. fibre cuts, degradation).Ensure traffic protection and restoration, including rerouting and capacity recovery.Perform network device software upgrades on optical platforms:Upgrades are manual / semi‑manual, requiring close operational oversight.Significant coordination required with internal customers and engineering teams.Work is executed within approved change windows with strict change management processes.Identify in‑scope devices, assess impact,...