11 jobs found

5 Days Onsite. Required Skills BS/MS degree in Computer Science, related technical field, or equivalent with 8+ years of industry experience 5+ years hands-on experience with Envoy Proxy (xDS/ADS, ext_authz, HTTP/2, gRPC, WebSocket) and/or Kong API Gateway (plugin development, DB-less mode, Admin API) Strong Go development skills - control-plane services, gRPC APIs, Kubernetes controllers (client-go), concurrency patterns Production Kubernetes experience (EKS and/or on-prem clusters) - Helm charts, HPA, PodDisruptionBudgets, NetworkPolicy, namespace isolation, ArgoCD GitOps Deep understanding of OAuth 2.0 / OIDC / PKCE flows, DPoP sender-constrained tokens, mTLS, and session management patterns Experience with OPA (Open Policy Agent) policy authoring in Rego and sidecar deployment patterns Hands-on with OpenTelemetry (traces, metrics, logs), Dynatrace, and Splunk SIEM integration Working knowledge of CDN/WAF platforms (Akamai Ion, Kona, Cloudflare) and WAF-as-code automation Experience with PostgreSQL (HA, connection pooling, PITR) and Kafka (MSK, Schema Registry, DLQ patterns) Familiarity with DNS steering (GeoDNS, Akamai GTM, health-check routing) and TLS certificate lifecycle (cert-manager, HSM/KMS) Strong CS fundamentals - networking (L3-L7), distributed systems, data structures & algorithms Experience building high-volume, low-latency, resilient infrastructure services Nice to have: TypeScript/React experience for operator dashboard development AWS infrastructure experience (EKS, MSK, Lambda, Direct Connect, Network Firewall) Bitbucket Pipelines CI/CD and GitOps delivery workflows Experience with CAEP (Continuous Access Evaluation Protocol) or similar session revocation mechanisms Background in identity platforms (ForgeRock, SAML federation, token exchange patterns). Job Description Day-to-day responsibilities: Design, build and operate Envoy and Kong gateway infrastructure serving production traffic across multiple lines of business Develop Go-based control-plane services - Ingress Registry, xDS controllers, Session Manager, Context Propagator Implement and maintain OPA policy bundles for coarse-grained authorization at the gateway layer Build and extend OpenTelemetry instrumentation pipelines (OTel Collector, Dynatrace OTLP ingest, Splunk SIEM forwarding) Manage GitOps-driven deployments via ArgoCD and Helm across multi-cluster Kubernetes environments Automate WAF rule management across Akamai and Cloudflare using WAF-as-code patterns Contribute to the platform operator console (TypeScript/React) for route management, drift detection, and session visibility Collaborate with LOB teams to onboard routes and migrate traffic from legacy ingress infrastructure Participate in incident response, runbook development, and production readiness reviews Champion software engineering best practices - code review, testing, documentation, and observability-first design

Platform Engineer - Go, Envoy/Kong & Kubernetes Location: Glasgow Working Model: 5 days per week onsite Contract: Contract Rate: £425 per day We are looking for an experienced.*Platform Engineer.*to join a high-performing engineering team responsible for building and operating secure, resilient, high-volume infrastructure services. This is a hands-on engineering role requiring strong experience across Go, API gateways, Kubernetes, distributed systems and modern cloud-native infrastructure . Key Responsibilities Design, build and operate Envoy Proxy and/or Kong API Gateway infrastructure supporting production traffic. Develop Go-based control-plane services , gRPC APIs and Kubernetes controllers. Build and maintain secure gateway and authentication capabilities using OAuth 2.0, OIDC, PKCE and mTLS . Develop and maintain OPA/Rego policies for gateway-layer authorisation. Manage multi-cluster Kubernetes deployments using Helm, ArgoCD and GitOps . Build and extend observability capabilities using OpenTelemetry, Dynatrace and Splunk . Automate CDN/WAF configuration and security controls. Work with PostgreSQL and Kafka-based platform services. Support production incidents, improve resilience and contribute to runbooks and production readiness. Collaborate with engineering teams to onboard services and migrate traffic from Legacy infrastructure. Essential Skills Platform engineering experience. Strong hands-on Go/Golang development experience. Significant experience with Envoy Proxy and/or Kong API Gateway . Experience with technologies such as xDS/ADS, ext_authz, HTTP/2, gRPC and WebSockets . Strong production experience with Kubernetes , including Helm, HPA, PodDisruptionBudgets, NetworkPolicy, namespace isolation and ArgoCD/GitOps. Experience building control-plane services, gRPC APIs and/or Kubernetes controllers using client-go . Strong understanding of OAuth 2.0, OIDC, PKCE, mTLS and session management . Hands-on experience with OPA and Rego policy authoring . Experience with OpenTelemetry , including traces, metrics and logs. Strong understanding of networking across L3-L7 , distributed systems and resilient infrastructure design. Experience building high-volume, low-latency, highly available production services . Desirable Skills Dynatrace and Splunk SIEM integration. Akamai, Cloudflare or other CDN/WAF platforms . WAF-as-code automation. PostgreSQL, including HA, connection pooling and PITR. Kafka, including MSK, Schema Registry and DLQ patterns. DNS steering, GeoDNS, Akamai GTM or health-check routing. TLS certificate life cycle management, cert-manager and HSM/KMS. AWS experience, particularly EKS and MSK . TypeScript/React experience. Banking or financial services experience. Apply Now This is an excellent opportunity for a highly technical Platform Engineer with strong Go, Envoy/Kong and Kubernetes expertise to work on complex, large-scale infrastructure. Location: Glasgow - 5 days onsite Rate: £425 per day Please apply with your latest CV.

Data and Security Network Engineer - F5, Skyhigh Web Gateway proxies, VPN, Cisco Proven experience (5 years) as a Load Balancing and Proxy Network Engineer. Proven experience (5 years) implementing and configuring Cisco Switches and Routers. Strong proficiency in configuring and managing load balancers (F5 and AVI) and proxies (Skyhigh Web Gateway). In-depth knowledge of network protocols, security principles, and best practices. Experience in troubleshooting and resolving complex network issues. Relevant certifications (eg, F5, AVI, Cisco) will be an advantage. As a Data and Security Network Engineer, your skills will include: Experience with load balancing technologies (F5, AVI) Ability to configure Skyhigh Web Gateway proxies. Strong DMZ architecture and engineering Experience Experience and working knowledge of VPN designs and configuration on Cisco platforms. Experience and working knowledge of BGP and Multicast Working knowledge of DNS Inside IR35 - initial 12 month contract (to be extended) - candidate can be based near Manchester/Liverpool/Stoke/Birmingham

Contract Investment Banking Data and Security Network Engineer - Load Balancing/Proxy/Cisco/Routing As a Data and Security Network Engineer, your qualifications will include: Proven experience (5 years) as a Load Balancing and Proxy Network Engineer. Proven experience (5 years) implementing and configuring Cisco Switches and Routers. Strong proficiency in configuring and managing load balancers (F5 and AVI) and proxies (Skyhigh Web Gateway). In-depth knowledge of network protocols, security principles, and best practices. Experience in troubleshooting and resolving complex network issues. Relevant certifications (eg, F5, AVI, Cisco) will be an advantage. As a Data and Security Network Engineer, your skills will include: Experience with load balancing technologies (F5, AVI) Ability to configure Skyhigh Web Gateway proxies. Strong DMZ architecture and engineering Experience Experience and working knowledge of VPN designs and configuration on Cisco platforms. Experience and working knowledge of BGP and Multicast Working knowledge of DNS Initial 12 month contract (will be extended further) - inside IR35 - candidate must be near Manchester/Liverpool/Stoke/Birmingham (hybrid working) By applying to this job you are sending us your CV, which may contain personal information. Please refer to our Privacy Notice to understand how we process this information. In short, in order to supply you with work finding services, we will hold and process your personal data, and only with your express permission we will share this personal data with a client (or a third party working on behalf of the client) by email or by upload to the Client/third parties vendor management system. By giving us permission to send your CV to a client, this constitutes permission to share the personal data that would be necessary to consider your application, interview you (Phone/video/face to face) and if successful hire you. Scope AT acts as an employment agency for Permanent Recruitment and an employment business for the supply of temporary workers. By applying for this job you accept the Terms and Conditions, Data Protection Policy, Privacy Notice and Disclaimers which can be found at our website.

Network Web Proxy Infra Engineer - Investment Banking - Proxy Tech (F5 BIG-IP, Infrastructure, Skyhigh, Bluecoat) Our client is looking for a Web Proxy Network Engineer on a contract basis to support the delivery and enhancement of their EMEA network. This role is ideal for someone who already has hands-on experience working with Proxy technologies (such as McAfee, Skyhigh, Blue Coat, or similar), and is ready to step into a fast-paced enterprise environment where you can further deepen your expertise. You will: Support the implementation and configuration of Access Policies, routing and Management of Web Proxies Contribute to change and incident activities within a complex network infrastructure Collaborate with senior engineers and architecture teams to deliver stable, secure, and scalable services We are not looking for someone brand new to the technology - you should already be familiar with the key tools and concepts and be ready to contribute from day one, even if you're still developing full mastery. Core Skills & Experience Required: Hands-on experience supporting or configuring Proxy platforms (eg McAfee, Skyhigh, Blue Coat) Experience or knowledge of Load Balancing technologies such as F5 BIG IP (LTM/GTM) VMWare Next Gen Load Balancer (formerly AVI Networks) Working knowledge of TCP/IP, HTTP/S, SSL certificates, NAT, DNS, and Layer 7 protocols Comfort using CLI and GUI interfaces for network appliance configuration Preferred: Experience building from base and upgrading firmware of Web Proxies Experience of DLP/Malware Protection & Mitigation infrastructure Experience writing or editing iRules, health monitors, or similar load balancing policies Awareness of certificate management, TLS handshake flow, and debugging tools (Wireshark, Fiddler) Contract Role inside IR35 - initial 12 month contract - 3 days a week in office (candidate can be based near Manchester/Liverpool/Stoke/Birmingham) By applying to this job you are sending us your CV, which may contain personal information. Please refer to our Privacy Notice to understand how we process this information. In short, in order to supply you with work finding services, we will hold and process your personal data, and only with your express permission we will share this personal data with a client (or a third party working on behalf of the client) by email or by upload to the Client/third parties vendor management system. By giving us permission to send your CV to a client, this constitutes permission to share the personal data that would be necessary to consider your application, interview you (Phone/video/face to face) and if successful hire you. Scope AT acts as an employment agency for Permanent Recruitment and an employment business for the supply of temporary workers. By applying for this job you accept the Terms and Conditions, Data Protection Policy, Privacy Notice and Disclaimers which can be found at our website.

SmartSourcing are recruiting on behalf of our defence client SC Cleared Network Engineer (Proxies) - Cumbria - SmartSourcing are looking for experienced Network Engineers with Proxy Infrastructure expertise to join a high performing Network Operations team supporting a complex enterprise environment. You will be responsible for the management, maintenance and support of a large scale Proxy infrastructure consisting of:10 Non-Business Proxy Servers3 Business Proxy Servers14 Conferencing Messaging Proxy Servers1 Test Environment2 PAC File Servers This is an excellent opportunity for a Network Engineer with strong operational support experience who enjoys troubleshooting, implementing changes, and supporting business critical network services. Key Responsibilities Provide Level 2/3 network incident diagnosis and resolution. Support and maintain Proxy infrastructure across 28 Servers. Perform monthly server patching and maintenance activities. Handle approximately 30-40 incidents per week. Process 20-30 web access requests per week. Implement network changes and service requests. Support new project implementations, including SAS applications. Assist with server deployments and other ad hoc infrastructure activities. Work closely with stakeholders and technical teams to maintain service availability. Follow ITIL processes and best practices. Required Skills ExperienceEssential: Strong experience supporting enterprise network environments. Proven experience supporting Proxy Infrastructure. Experience in: Server maintenance and operational support Incident and problem management Change implementation Patch management Web access administration Network troubleshooting Valid networking certifications demonstrating technical proficiency. Strong understanding of ITIL processes. Desirable: Palo Alto Firewalls Check Point Firewalls Cisco Firepower Cisco ASA Cisco AnyConnect Remote Access Knowledge of routing protocols including: BGP OSPF EIGRP If you are an active MOD SC Cleared Network Engineer, are a sole UK national, and have experience supporting enterprise Proxy environments, wed like to hear from you.  SmartSourcing are a Disability Confident Employer and we promote, celebrate and value diversity, we are committed to promoting equality and inclusion for all.

SCADA Engineer Expert-level GE PowerOn Reliance (PoR) SCADA specialist required to lead testing, integration and deployment across complex SCADA/EMS environments, working closely with utilities, system integrators and technical delivery teams. Day Rate: £550-£600pd IR25 Status: Inside Travel: 2-3 days a week in Woking Duration:6 months Responsibilities: We're looking for an expert-level GE PowerOn Reliance (PoR) SCADA specialist to support the implementation, testing and deployment of SCADA/EMS solutions within complex Transmission and Distribution environments. You'll lead functional, non-functional, integration and acceptance testing, developing comprehensive test scenarios and cases to validate PoR against business, operational and technical requirements. Strong hands-on experience with PowerOn Reliance is essential, including SCADA/EMS configuration and modules such as Group Telecontrol, Automation, System Tracing, Symbol Design and Alarm Configuration. You'll work across the wider PoR technology stack, with experience configuring components including Application, Database, Reports, FEP, Historian, DPF and Proxy Servers, as well as integrating PoR with external enterprise applications and interfaces. The role requires strong knowledge of power systems and OT environments, including IEC 101/104, IEC 61850, GI 74, NERC CIP, SCADA data flows, cartography/network modelling, and Windows/Linux server environments. You'll work closely with utilities, system integrators, Product Owners, SCADA SMEs and delivery teams in Agile environments, using tools such as JIRA/XRAY to manage testing, defects, risks and delivery. 10+ years' experience across SCADA implementation, integration, testing and operational support is highly desirable.

Network Engineer - Proxy Initial 6-month Rolling Contract Role Hybrid Working in Camberley £450 - £550 per day, Inside IR35 ECS Resource group are currently working with a World's Leading Technology Organisation who are looking for a Network Engineer to support and enhance their EMEA network infrastructure, with a strong focus on web Proxy technologies. As a Network Engineer, you will be responsible for: Assist in the configuration and management of Proxy systems, access policies, and routing rules Supporting the implementation and configuration of Access Policies, routing and management of Web Proxies Support incident response and planned changes in a complex, multi-layered network Collaborate with senior engineers and architecture teams to deliver stable, secure, and scalable services Please note, the below requirements are essential and candidates without this will not be considered: 5+ years working as a Network Engineer Hands-on experience supporting or configuring Proxy Platforms eg McAfee, Sky high, Blue Coat etc. (essential) Hands-on experience implementing Proxy technologies Knowledge of load balancing technologies such as a F5, VMWare Next Gen Load etc. Prior experience supporting network changes and troubleshooting connectivity issues Financial services experience (highly desirable) Please contact (see below) for further infromation. ECS Recruitment Group Ltd is acting as an Employment Business in relation to this vacancy.

Network Engineer (Cisco ISE & DNAC), £400-450 inside IR35 6 months rolling, London & Remote Working Bench IT require a Network Engineer to join a large organisation starting ASAP working in a hybrid model 3 days per week in London and the remaining 2 remotely. The Network Engineer will require strong skills will Cisco DNAC & ISE and work at a CCNP level. The successful Network Engineer should have the skills and experience included below: Extensive experience with Cisco ISE & DNAC Knowledge of LAN and WAN technologies MPLS and DWDM infrastructure; and LAN and WiFi network design Knowledgeable about Firewalls, including IP security, Internet Proxy and remote access virtual private networks Investigates and diagnoses complex network problems. Resolves such problems, co-operating with the IT Operations Centre and other key stakeholders to maintain overall network performance Oversees the creation and maintenance of procedures and documentation for network support Supports network architecture and design decisions by providing technical expertise and works with the Network Architect to agree architectures, design standards, policies and frameworks Strong communications skills Network Engineer (Cisco ISE & DNAC), £400-450 inside IR35 6 months rolling, London & Remote Working

Network Engineer Initial 6-month Rolling Contract Role Hybrid Working in Chester £450- £550 per day, Inside IR35 ECS Resource group are currently working with a World's Leading Technology Organisation who are looking for a Network Engineer to support and enhance their EMEA network infrastructure, with a strong focus on web Proxy technologies. Please note: candidates without Proxy experience can be considered for this role, but you need to be based within a commutable distance from Chester. As a Network Engineer, you will be responsible for: Assist in the configuration and management of Proxy systems, access policies, and routing rules Supporting the implementation and configuration of Access Policies, routing and management of Web Proxies Support incident response and planned changes in a complex, multi-layered network Collaborate with senior engineers and architecture teams to deliver stable, secure, and scalable services Please note, the below requirements are essential and candidates without this will not be considered: 5+ years working as a Network Engineer Hands-on experience supporting or configuring Proxy Platforms eg McAfee, Sky high, Blue Coat etc. Knowledge of load balancing technologies such as a F5, VMWare Next Gen Load etc. Prior experience supporting network changes and troubleshooting connectivity issues Financial services experience (desirable) Further Information Available upon Application. ECS Recruitment Group Ltd is acting as an Employment Business in relation to this vacancy.