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Senior SOC Analyst

Location: London
Working Pattern: 4 days onsite, 1 day remote
Hours: Monday-Friday, standard business hours (no shift work)

Overview

We are seeking an experienced Senior SOC Analyst to support a major cyber security transformation programme within a global enterprise environment.

This role is ideal for a senior, hands-on Security Operations professional who combines strong incident investigation and threat analysis skills with experience in detection engineering, operational process development, and stakeholder engagement.

Working as a key bridge between regional and global Security Operations teams, you will play a critical role in the globalisation of security monitoring capabilities, helping to onboard, validate, optimise, and operationalise detection content while ensuring analysts have effective procedures and playbooks in place.

Key Responsibilities

Detection Rule Globalisation

Lead the onboarding of EMEA detection rules into the Global Security Operations Centre.Review and validate detection logic, thresholds, alert conditions and expected behaviours across SIEM platforms such as Microsoft Sentinel, Splunk, QRadar, ArcSight, Exabeam, and LogRhythm.Ensure accurate mapping of detection content to recognised threat frameworks, including MITRE ATT&CK.Identify detection gaps, duplicate content and optimisation opportunities through detection engineering, threat hunting, and alert tuning activities.Support standardisation of monitoring capabilities across global security teams covering EDR, XDR, cloud, identity, email, and network security telemetry.

SOP Development & Operationalisation

Develop and maintain Standard Operating Procedures (SOPs) for Tier 1 and Tier 2 SOC teams.Create investigation workflows, triage processes and escalation procedures for security incidents across Microsoft Defender, CrowdStrike, Cortex XDR, SentinelOne, Carbon Black, Azure, AWS, and GCP environments.Define required enrichment data, threat intelligence inputs and decision-making criteria.Ensure procedures are practical, repeatable and aligned with global security operations.Develop analyst playbooks and support SOAR and automation initiatives using technologies such as Microsoft Sentinel Automation, Cortex XSOAR, Splunk SOAR, Tines, and Swimlane.

Threat Analysis & Detection Validation

Validate the effectiveness of security detections through threat-focused analysis and threat hunting activities.Perform quality assurance reviews of detection rules and analyst handling processes.Review and simulate alert scenarios to confirm investigation workflows and expected outcomes.Analyse attacker tactics, techniques and procedures (TTPs) and ensure detection content remains aligned with emerging threats.Utilise KQL, SPL, SQL, log analysis, event correlation, and telemetry investigation to validate detection's and support investigations.Support continuous improvement of detection and response capabilities.

Stakeholder Management & Collaboration

Work closely with Security Operations, Detection Engineering, Threat Intelligence, Incident Response, and Global SOC teams.Act as a bridge between regional and global security functions.Deliver knowledge transfer sessions and operational walkthroughs.Translate complex technical concepts, detection logic, threat activity, and investigation outcomes into clear, business-friendly language.

Documentation & Governance

Maintain high-quality documentation of detection content and operational procedures.Ensure traceability between detection logic, threat mappings and analyst workflows.Support audit and compliance requirements through robust process documentation.

Essential Skills & Experience

Minimum 4 years' experience as a Tier 2 SOC Analyst (or recent Tier 3 experience).Strong background in security incident investigation, threat analysis, and threat hunting.Experience reviewing, tuning and validating detection rules and security alerts within SIEM platforms such as Microsoft Sentinel, Splunk, QRadar, ArcSight, Exabeam, or LogRhythm.Experience working with Microsoft Defender XDR, Microsoft Defender for Endpoint, CrowdStrike Falcon, Cortex XDR, SentinelOne, Carbon Black, or similar EDR/XDR technologies.Proven experience creating SOPs, playbooks, SOAR workflows, or response procedures for SOC teams.Strong understanding of attacker tactics, techniques and procedures (TTPs).Experience mapping detections to recognised threat frameworks such as MITRE ATT&CK.Experience using KQL, SPL, SQL, or similar query languages for investigation, threat hunting, and alert validation.Ability to define escalation criteria and investigation workflows.Experience working across multiple security teams and stakeholder groups.Strong communication skills with the ability to mentor and guide junior analysts.

Desirable Experience

Security transformation, SOC modernisation, or globalisation projects.Detection engineering experience.SOAR workflow, automation, or response procedure development.Quality assurance of SOC processes and detection content.Experience within financial services or highly regulated environments.Experience delivering analyst training and knowledge transfer sessions.Experience working within Azure, AWS, or GCP cloud environments.Experience with threat intelligence integration, detection use case development, and security monitoring strategy.

Qualifications

Degree in Cyber Security, Information Security, Computer Science, or equivalent practical experience.Relevant security operations, incident response, or monitoring certifications.Industry certifications such as Security+, CySA+, GCIH, GCIA, CISSP, SC-200, SC-300, AZ-500, or equivalent are advantageous.

Ideal Candidate

The ideal candidate is a genuinely senior SOC professional, not simply a Detection Engineer or Tier 1 Analyst. You will have a broad Security Operations background covering incident investigation, threat analysis, detection engineering, playbook development, stakeholder management, and mentoring.

You will be comfortable operating between regional and global teams, driving consistency across security operations and helping shape how detection and response capabilities are delivered at scale.

This is an excellent opportunity for a senior SOC professional looking to influence a large-scale Security Operations transformation while remaining technically hands-on.

GCS is acting as an Employment Agency in relation to this vacancy.

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Network Operations / Master Control Operator

Location: Englewood, CO
Work Arrangement: Fully Onsite
Duration: 6 Months Contract
Schedule: 24/7/365 - All Shifts

Position Overview

We are seeking a Network Operations / Master Control Operator to support a high-volume television Network Operations Center. This position will be responsible for monitoring on-air programming, maintaining automation playlists, supporting commercial integration, and responding to transmission and programming issues.

The role is ideal for professionals with experience in broadcast operations, television production, media operations, or control room environments.

ResponsibilitiesMonitor television programming and network channel streams.Maintain and manipulate automated programming playlists.Execute approved program, commercial, and marketing changes.Ensure programming is ready for scheduled playout.Support live broadcasts, special events, and contingency operations.Monitor commercial breaks during taped and live programming.Perform continuous audio, video, captioning, and picture-quality checks.Identify inconsistencies and immediately escalate or resolve issues.Assist with recovery from on-air discrepancies.Communicate clearly with production and operations personnel.Support implementation of new broadcast systems and workflows.Utilize automation platforms such as SNELL Morpheus and Amagi.RequirementsBroadcast, television, digital media, post-production, or related experience.Knowledge of television production and broadcast operations.Excellent attention to detail.Ability to multitask and manage multiple priorities.Strong decision-making skills under pressure.Excellent communication and interpersonal skills.Dependable, punctual, and team-oriented.Ability to work overnight, weekend, and holiday shifts.Fully onsite availability in Englewood, CO.

Plus: Previous Master Control or Production Control Room experience and Spanish proficiency.

GCS is acting as an Employment Business in relation to this vacancy.

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Senior Data Engineer
Location: Dublin, Ireland (Hybrid - 3 days in office)
Employment Type: Full-Time

About Us

We're an innovative smart grid technology company building systems that connect and optimise energy assets as part of a Virtual Power Plant, helping accelerate the decarbonisation of the energy system. Our in-house software and hardware platform spans embedded controllers with rich sensor data collection deployed on customer sites, through to backend applications for control, automation, and data analytics - all the way to customer-facing visualisation and reporting tools.

We're a leader in the evolving smart grid space, offering Load Shifting, Demand Response, and Frequency Response services. As the electricity network evolves to intelligently balance producers and consumers of all sizes, we're building the technology to meet the needs of a fast-changing energy landscape - and growing our IT team to support the next stage of our growth.

The Role

We're looking for a Senior Data Engineer to join our Data and Analytics IT team. You'll work in an agile environment to build a Data Lake and Data Warehouse solution supporting our Data Science and Business Management teams - integrating data from external sources, IoT sensors across our install base, and business systems including CRM and billing.

This integrated data will power solutions for energy optimisation, energy trading, and predictive fault detection, as well as Power BI reporting for internal and external stakeholders. You'll play a key role in our Smart Grid Platform's evolution - from analysis and design through to implementation and delivery of industry-leading big data and data warehousing solutions, built on Azure's cloud services.

Ideally, you've taken projects through the full development lifecycle on Azure - from design through to production.

What You'll Do

Lead the design and delivery of innovative data solutions using the latest Azure ecosystem servicesApply industry best practices and your own experience to build a data platform that enables business growthLiaise with internal and external stakeholders to gather and document technical requirementsContribute ideas to strengthen standards and processes, and proactively look for ways to improve solutions and process efficiency

What You'll Bring

3+ years' professional experience, including 3+ years with Azure or AWS (Azure Data certification a plus)Experience with Data Warehouse design and the Kimball methodologyETL experience using SSIS and Azure Data FactoryHands-on experience with SQL Server, SQL Data Warehouse, and Azure Data LakeSkill in SQL Server schema design and performance optimisationPython programming for data engineering and cleansing (Spark/Databricks experience a plus)Experience with Power BI and DAXSolid understanding of data security on AzureA proven ability to translate complex business requirements into scalable, resilient, end-to-end data system designs (HA/DR)Familiarity with: SQL Server, ETL design, Azure Data Lake, Azure Data Factory, Azure SQL Server, Azure SynapseCore languages: T-SQL, PowerShell, Azure API, DAX

Nice to Have

Experience in the renewable energy sectorA third-level degree in Maths, Physics, Engineering, Computer Science, or a related fieldCommercial experience in data warehousing and business intelligence projectsExperience with large, complex datasets across multiple languages (T-SQL, Python, R, etc.)Experience translating diverse business domains into dimensional designs for analytics and reportingBasic exposure to machine learning, data visualisation, or AI techniques, and experience collaborating with Data Science/ML teamsData governance experience

GCS is acting as an Employment Agency in relation to this vacancy.

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Embedded Architect | Munich, Germany | Full-Time

Help shape the future of connected technologies and embedded software innovation.

An exciting opportunity is available for an experienced Embedded Architect to join a global technology organization at the forefront of hardware, software, and IoT innovation. This role offers the chance to work on next-generation embedded platforms and contribute to solutions that are transforming the industry.

About the Role

As an Embedded Architect, you will be responsible for designing and evolving both existing and future embedded software frameworks and platforms. You will play a key role in modernization initiatives, defining architectural standards, and driving the development of scalable, high-quality embedded systems.

Key Responsibilities

Define and drive software architecture for real-time embedded systems.Design scalable, maintainable, high-performance, and functionally safe software solutions.Develop and enhance embedded software frameworks and platforms.Apply advanced architecture concepts, design patterns, and engineering methodologies.Collaborate with global, cross-functional teams to influence technical strategy and product direction.Champion modern software development practices, including Agile methodologies, TDD, CI/CD, and DevOps.Support continuous improvement initiatives to enhance software quality and development efficiency.

Required Skills & Experience

Strong expertise in Embedded C/C++ development.Proven experience defining software architecture for real-time embedded systems.5+ years of experience developing embedded applications and systems.Strong understanding of software design patterns and embedded software engineering principles.Experience working within Agile environments and utilizing DevOps and CI/CD practices.Excellent problem-solving, communication, and stakeholder management skills.

Ability to collaborate effectively with international teams

Kindly apply or get in touch withme directly at [email protected]

GCS is acting as an Employment Agency in relation to this vacancy.

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Modern Workplace Senior Consultant

Location: Dublin, Ireland
Working Model: Hybrid

The Opportunity

A large international technology organisation is growing its Professional Services function and is looking for a Modern Workplace Senior Consultant to join the team in Dublin.

This is a role for someone who sits comfortably between technology, customers and commercial conversations.

You'll bring strong technical knowledge across Citrix and the wider Modern Workplace landscape, while also working closely with the Modern Workplace Lead on customer engagement, pre-sales, solution development and business growth.

Rather than simply delivering projects, you'll have the opportunity to help shape how the organisation takes its Modern Workplace capabilities to market.

What You'll Be Doing

Work alongside the Modern Workplace Lead to develop and grow the practice

Join customer meetings and lead technical discovery and requirements sessions

Help identify customer challenges and translate them into practical Modern Workplace solutions

Support pre-sales, proposals, presentations and Statements of Work

Contribute technical expertise to business development opportunities

Build strong relationships with customers and become a trusted technical adviser

Lead the technical side of Modern Workplace projects from design through to delivery

Work closely with project managers, architects and engineering teams

Help develop repeatable solutions, methodologies and service offerings

Support the development of the wider Modern Workplace capability

Produce solution designs, technical documentation and project deliverables

Your Technical Background

We're looking for someone with strong experience in Citrix and Modern Workspace, particularly:

Citrix Virtual Apps and Desktops

Citrix Cloud / DaaS

Citrix NetScaler / ADC

FSLogix and Citrix Profile Management

Active Directory and Group Policy

Azure Files / Azure NetApp Files

VDI storage and networking

Citrix Director / Analytics

Digital Employee Experience tooling

You'll ideally also have exposure to technologies such as:

Azure Virtual Desktop

Windows 365

Microsoft Intune

Microsoft Entra ID

Conditional Access / MFA

Omnissa / VMware Horizon

Workspace ONE

Nerdio

What We're Looking For

5+ years' experience across Citrix, EUC or Modern Workplace technologies

Strong professional services / consulting background

Experience working directly with customers

Confidence presenting technical solutions to both technical and non-technical stakeholders

Exposure to pre-sales, solution design or business development

Ability to understand a customer's problem and shape the right technical solution

Strong communication and documentation skills

Comfortable taking ownership and operating with a high degree of autonomy

A consultant who wants to influence the direction and growth of a practice, not just deliver tickets

Certification

Mandatory: Current Citrix certification such as CCP-V, CCE-V, CCA-AppDS or CCP-AppDS.

Desirable: AZ-104 and/or AZ-140

GCS is acting as an Employment Agency in relation to this vacancy.

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Forward Deployed Engineer
📍 Dublin (Hybrid) | Full-time

About the Role

You'll embed with enterprise clients, figure out what they actually need, and build it - custom integrations, pipelines, and workflows on top of our core platform. You own delivery start to finish: scope it with the client, write the code, ship it, fix what breaks. Expect regular travel or time on-site, and expect the work to shift week to week depending on who you're sitting with.

Why This Role

You'll watch your code go into production in front of the people using it, see what breaks, fix it there, and take what you learned straight back to product. If you want that loop tight - build something, see it work or not, adjust - this is built for that.

What you'll do

Work directly with enterprise customers to scope and build solutions on our platformWrite production code (Python/TypeScript) - APIs, data pipelines, automation, internal toolsDebug live with the client watching, often under time pressureOwn a deployment end to end: scoping, building, shipping, supporting it after launchReport back what you're seeing in the field so product builds the right thingsBe the main technical point of contact for your accountsBuild tooling and playbooks so each deployment gets faster

What we're looking for

3+ years as a software engineer, full-stack or backendCan work from a vague problem without needing a full specCommunicates well with non-technical stakeholders, still writes solid codeStartup or consulting background helps - people used to moving fast and owning outcomesBased in or willing to relocate to Dublin, open to travel (20-40%)Bonus: data pipelines, LLM integrations, or enterprise SaaS deployment experience

Tech Stack: Python, TypeScript, React, Postgres, AWS, Docker.

GCS is acting as an Employment Agency in relation to this vacancy.

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About the Role

We're looking for a Senior Ruby on Rails Support Developer to join a fast-paced product engineering team. This role is focused on production support, troubleshooting, and issue resolution within a complex Rails application.

You'll investigate technical issues, work with production data, and deliver practical solutions to business-critical problems. While there may be opportunities to contribute to feature development, your primary focus will be maintaining and supporting a live platform.

Key Responsibilities

Investigate and resolve production support issues involving application code and data.Diagnose root causes using logs, monitoring tools, and database analysis.Troubleshoot configuration issues and implement fixes.Identify, document, and resolve software defects.Analyse and correct data integrity issues, including scripting where required.Collaborate with engineering and support teams to improve platform reliability.Contribute to reducing technical debt and enhancing operational efficiency.

What We're Looking For

Commercial experience with Ruby and Ruby on Rails.Strong troubleshooting and problem-solving skills.Experience supporting production applications and resolving live issues.Comfortable working with databases, logs, and production data.Ability to work independently and own issues through resolution.Strong communication skills and a customer-focused mindset.

Nice to Have

Experience in fast-growing product environments.Exposure to data repair, scripting, and operational support.Familiarity with AI-assisted development tools such as Cursor, Claude, or Codex.Experience balancing support work with occasional feature development.

GCS is acting as an Employment Business in relation to this vacancy.

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Platform Engineering Manager

Location: Fully Remote
Employment Type: Permanent

Overview

We are looking for an experienced Platform Engineering Manager to lead and grow a high-performing platform engineering organisation in a dynamic, fast-moving environment.

This is a unique opportunity to join a startup-style organisation with the backing, stability, and resources of a larger global business. Rather than stepping into a fully established structure and simply maintaining it, you will play a critical role in shaping the Platform Engineering function, influencing strategy, building teams, and creating the foundations that enable engineering teams to deliver at scale.

You will lead teams responsible for shared platform capabilities, infrastructure, developer experience, reliability, observability, and engineering enablement, while partnering closely with senior technical leaders who own the technical strategy and architecture.

We're looking for a leader who thrives in ambiguity, enjoys building structure from the ground up, and can balance startup agility with the needs of a growing organisation.

Key Responsibilities

Lead, coach, and grow the Platform Engineering team, including hiring, performance management, and career development.Ensure the delivery and continuous improvement of shared platform capabilities, infrastructure, developer tooling, and engineering enablement services.Drive platform reliability, scalability, security, and operational excellence through strong engineering practices and collaboration.Partner with technical leaders and stakeholders to align priorities, remove blockers, and support successful delivery across engineering teams.Develop organisational capacity, talent, and ways of working that enable high-performing teams and an exceptional developer experience.

What We're Looking For

Essential Experience

Significant experience leading Platform Engineering, Infrastructure, DevOps, Site Reliability, or related engineering teams.Proven people leadership experience, including hiring, coaching, performance management, and team development.Strong understanding of modern cloud-native engineering practices, including infrastructure automation, CI/CD, observability, reliability, and platform operations.Experience building and scaling engineering teams in fast-paced environments.Ability to work effectively across engineering, product, security, and leadership stakeholders.Excellent communication and stakeholder management skills.

Why This Opportunity?

This is a rare opportunity to combine the pace, autonomy, and influence of a growing business with the stability and backing of a larger organisation.

You won't be inheriting a mature platform organisation and simply maintaining it. Instead, you'll help shape its future: building teams, influencing strategy, establishing ways of working, and creating the platform foundations that enable engineering teams to deliver exceptional products and services.

If you're excited by the prospect of making a tangible impact, growing your own organisation, and helping define the next stage of a modern engineering function, we'd love to hear from you.

GCS is acting as an Employment Agency in relation to this vacancy.

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Platform Engineering Manager

Location: Fully Remote
Employment Type: Permanent

Overview

We are looking for an experienced Platform Engineering Manager to lead and grow a high-performing platform engineering organisation in a dynamic, fast-moving environment.

This is a unique opportunity to join a startup-style organisation with the backing, stability, and resources of a larger global business. Rather than stepping into a fully established structure and simply maintaining it, you will play a critical role in shaping the Platform Engineering function, influencing strategy, building teams, and creating the foundations that enable engineering teams to deliver at scale.

You will lead teams responsible for shared platform capabilities, infrastructure, developer experience, reliability, observability, and engineering enablement, while partnering closely with senior technical leaders who own the technical strategy and architecture.

We're looking for a leader who thrives in ambiguity, enjoys building structure from the ground up, and can balance startup agility with the needs of a growing organisation.

Key Responsibilities

Lead, coach, and grow the Platform Engineering team, including hiring, performance management, and career development.Ensure the delivery and continuous improvement of shared platform capabilities, infrastructure, developer tooling, and engineering enablement services.Drive platform reliability, scalability, security, and operational excellence through strong engineering practices and collaboration.Partner with technical leaders and stakeholders to align priorities, remove blockers, and support successful delivery across engineering teams.Develop organisational capacity, talent, and ways of working that enable high-performing teams and an exceptional developer experience.

What We're Looking For

Essential Experience

Significant experience leading Platform Engineering, Infrastructure, DevOps, Site Reliability, or related engineering teams.Proven people leadership experience, including hiring, coaching, performance management, and team development.Strong understanding of modern cloud-native engineering practices, including infrastructure automation, CI/CD, observability, reliability, and platform operations.Experience building and scaling engineering teams in fast-paced environments.Ability to work effectively across engineering, product, security, and leadership stakeholders.Excellent communication and stakeholder management skills.

Why This Opportunity?

This is a rare opportunity to combine the pace, autonomy, and influence of a growing business with the stability and backing of a larger organisation.

You won't be inheriting a mature platform organisation and simply maintaining it. Instead, you'll help shape its future: building teams, influencing strategy, establishing ways of working, and creating the platform foundations that enable engineering teams to deliver exceptional products and services.

If you're excited by the prospect of making a tangible impact, growing your own organisation, and helping define the next stage of a modern engineering function, we'd love to hear from you.

GCS is acting as an Employment Agency in relation to this vacancy.

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Platform Engineering Manager

Location: Fully Remote
Employment Type: Permanent

Overview

We are looking for an experienced Platform Engineering Manager to lead and grow a high-performing platform engineering organisation in a dynamic, fast-moving environment.

This is a unique opportunity to join a startup-style organisation with the backing, stability, and resources of a larger global business. Rather than stepping into a fully established structure and simply maintaining it, you will play a critical role in shaping the Platform Engineering function, influencing strategy, building teams, and creating the foundations that enable engineering teams to deliver at scale.

You will lead teams responsible for shared platform capabilities, infrastructure, developer experience, reliability, observability, and engineering enablement, while partnering closely with senior technical leaders who own the technical strategy and architecture.

We're looking for a leader who thrives in ambiguity, enjoys building structure from the ground up, and can balance startup agility with the needs of a growing organisation.

Key Responsibilities

Lead, coach, and grow the Platform Engineering team, including hiring, performance management, and career development.Ensure the delivery and continuous improvement of shared platform capabilities, infrastructure, developer tooling, and engineering enablement services.Drive platform reliability, scalability, security, and operational excellence through strong engineering practices and collaboration.Partner with technical leaders and stakeholders to align priorities, remove blockers, and support successful delivery across engineering teams.Develop organisational capacity, talent, and ways of working that enable high-performing teams and an exceptional developer experience.

What We're Looking For

Essential Experience

Significant experience leading Platform Engineering, Infrastructure, DevOps, Site Reliability, or related engineering teams.Proven people leadership experience, including hiring, coaching, performance management, and team development.Strong understanding of modern cloud-native engineering practices, including infrastructure automation, CI/CD, observability, reliability, and platform operations.Experience building and scaling engineering teams in fast-paced environments.Ability to work effectively across engineering, product, security, and leadership stakeholders.Excellent communication and stakeholder management skills.

Why This Opportunity?

This is a rare opportunity to combine the pace, autonomy, and influence of a growing business with the stability and backing of a larger organisation.

You won't be inheriting a mature platform organisation and simply maintaining it. Instead, you'll help shape its future: building teams, influencing strategy, establishing ways of working, and creating the platform foundations that enable engineering teams to deliver exceptional products and services.

If you're excited by the prospect of making a tangible impact, growing your own organisation, and helping define the next stage of a modern engineering function, we'd love to hear from you.

GCS is acting as an Employment Agency in relation to this vacancy.

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