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Software Engineer

Our client is seeking a Controls Engineer to support the development of next-generation material handling and conveyance control systems. This role involves designing and developing machine control software, integrating industrial hardware, and supporting deployment of large-scale automation solutions.

Key Requirements5+ years of experience in industrial automation, controls engineering, or machine control developmentStrong PLC programming experience using IEC 61131-3 Structured TextExperience with Beckhoff TwinCAT, Allen-Bradley, Siemens, or similar PLC platformsProven experience developing state-machine based control logic is nice to haveHands-on experience integrating motors, drives, sensors, actuators, and industrial networksExperience with EtherCAT, EtherNet/IP, Profinet, or ModbusAbility to read electrical schematics and control drawingsFamiliarity with Linux-based industrial systems and version control tools (Git)ResponsibilitiesDevelop and maintain machine control softwareDesign reusable control modules and automation solutionsIntegrate and validate hardware in lab and production environmentsTroubleshoot control systems and industrial networksParticipate in requirements gathering, code reviews, testing, and deployment activities

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

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Application Security Engineer

You'll join a centralised Application Security team responsible for managing the full lifecycle of security findings reported by customers, internal teams, and third‑party testers.

You'll triage real‑world vulnerability reports, reproduce issues in controlled environments, analyse platform‑level attack surfaces, and collaborate with engineering teams to validate fixes and guide remediation.

Day to Day Responsibilities

Validate vunerabilities, assess scope and impact, determine severity, and recommend remediation paths.vulnerabilities across web, API, and server-side components and privilege escalation.Produce clear, accurate security assessments suitable for both engineering teams and executive level.Partner with development teams on defect filing, patch validation, backport decisions, and fix completeness.Recreate customer scenarios in lab environments to verify reported vulnerabilities and confirm remediation.Review server-side and client-side code to trace attack vectors and validate security fixes.

Desired Experience

Relevant eperience in application security, penetration testing, bug bounty triage, or product security engineering.Strong working knowledge of OWASP Top 10 and modern attack classesAbility to read and trace JavaScript and Java codebases to identify vulnerabilities and validate fixes.Experience writing clear, technically accurate security reports for diverse audiences.Fluency in CVSS scoring, including rationale behind severity decisions.

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

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Application Security Engineer

ZZP / Freelance

Industry: AAA Gaming Studio
Location: Fully Remote (Netherlands)
Contract Length: 12-18 months

About the Role

A fast‑growing gaming studio is looking for an Application Security Engineer to embed secure development practices into their high‑velocity game and platform engineering teams. You'll help secure game engines, back‑end services, and player‑facing APIs used by millions worldwide.

Key Responsibilities

Conduct secure code reviews and help dev teams fix vulnerabilities.Integrate SAST, SCA, and DAST tools into build pipelines.Perform threat modelling on gameplay features and backend microservices.Respond to application‑level vulnerabilities and guide remediation efforts.Promote a developer‑friendly security culture within the studio.

Skills & Experience

Strong experience with modern languages (C++, C#, Go, Python).Solid understanding of CI/CD security and cloud-native app security.Gaming sector experience is a bonus, not a requirement.

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

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We are supporting a global broadband equipment manufacturer looking for a Field Application Engineer to support HFC access network products across North America. This role will focus on DOCSIS 4.0 deployments, HFC outside-plant equipment, RF troubleshooting, amplifier and optical/RF node support, and customer-facing technical engagement with major cable operators.

This is a remote-based contract role with regular travel to customer/operator sites. The position has the opportunity to convert to a full-time role.

The Role

The Field Application Engineer will act as the technical bridge between product engineering, sales, and customer field teams. You will support the deployment, commissioning, troubleshooting, and optimization of HFC access network equipment, including amplifiers, optical/RF nodes, passives, and related outside-plant hardware.

This is a hands-on, customer-facing role for someone with real HFC plant experience who is comfortable working directly with MSO engineering teams, field technicians, and internal product teams.

Key Responsibilities

Support field deployment, commissioning, and turn-up of HFC outside-plant equipment, including amplifiers, optical/RF nodes, and passivesProvide technical support for DOCSIS 4.0 upgrade programs, including mid-split, high-split, and extended spectrum initiativesTroubleshoot RF and HFC plant issues, including signal alignment, sweep, ingress, noise, return-path issues, and plant performance problemsUse RF test equipment such as spectrum analyzers, signal level meters, signal generators, sweep systems, and plant monitoring toolsWork directly with cable operator/MSO teams during lab validation, field trials, production deployment, and issue resolutionSupport firmware upgrades, configuration workflows, remote management tools, and deployed hardware troubleshootingProvide pre-sales and post-sales technical support, including demos, technical workshops, customer training, and field documentationSupport RFI, RFP, and RFQ technical responses for cable operator customersCreate technical documentation, application notes, deployment playbooks, case studies, and field support materialsCapture field issues and customer feedback, then work with engineering teams to drive product improvementsCoordinate with internal engineering, sales, customer support, third-party contractors, and operator field teams

Required Experience

5+ years of hands-on experience in HFC, DOCSIS, cable broadband, RF, or outside-plant network environmentsStrong understanding of DOCSIS networks, ideally including DOCSIS 3.1 and DOCSIS 4.0Experience with HFC outside-plant equipment such as amplifiers, optical nodes, RF nodes, passives, taps, splitters, and related access network hardwareHands-on RF troubleshooting experience, including sweep, alignment, ingress mitigation, return-path diagnostics, noise troubleshooting, and plant optimizationExperience using RF test equipment such as spectrum analyzers, signal level meters, sweep tools, signal generators, or similar field/lab equipmentAbility to support customer-facing technical meetings, field escalations, training sessions, and deployment reviewsUnderstanding of firmware upgrades, equipment configuration, remote diagnostics, and field support workflowsStrong written and verbal communication skillsAbility to travel regularly to customer/operator sites as needed

Nice to Have

DOCSIS 4.0 field deployment or lab validation experienceExperience with Extended Spectrum DOCSIS, mid-split, high-split, Remote PHY, Remote MACPHY, or DAA architecturesExperience with HFC performance metrics such as MER, BER, CNR, return loss, leakage, ingress, and upstream/downstream signal qualityPrior Field Application Engineer, Systems Engineer, Network Engineer, RF Engineer, HFC Engineer, or Plant Engineer experienceExperience supporting Tier-1 cable operators or MSOsExperience with RFI/RFP/RFQ support and technical proposal inputExposure to Node.js, Python, scripting, automation, or internal toolingSCTE certifications such as BTS, BDS, DOCSIS Engineering Professional, or DOCSIS 3.1/4.0 trainingExperience with products or environments from companies such as CommScope/ARRIS, ATX Networks, Vecima, Technetix, Harmonic, Casa Systems, Vantiva, Charter, Comcast, Cox, Altice, Mediacom, or similar

Ideal Candidate Background

The ideal candidate will come from a cable broadband, HFC, DOCSIS, RF, or access network background. Strong fits may come from OEM/vendor-side field engineering roles or operator-side plant/access network engineering roles.

Relevant job titles may include:

Field Application EngineerHFC EngineerRF EngineerDOCSIS EngineerAccess Network EngineerNetwork EngineerPlant EngineerSystems EngineerBroadband EngineerOutside Plant EngineerTechnical Support EngineerField Engineer

Location and Travel

This role is remote-based, with regular travel to customer and operator sites across the US. Candidates should be comfortable traveling for field deployment support, customer escalations, lab validation, and technical workshops. Travel may vary depending on project activity and deployment schedules.

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

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One of our clients is looking for a hands-on Application (AVD) Engineer to support a major application integration and migration programme following recent acquisitions. This is a key role focused on application packaging, deployment, and secure delivery within a modern Azure-based environment.

Preston (Hybrid 2 days /week)
📅 6-Month Contract (outside IR 35)
💼 Immediate Start

Key Responsibilities
Package, test & deploy apps into Azure Virtual Desktop
Support and troubleshoot Microsoft Azure
Deliver application on boarding & integration
Operate in a Zero Trust model using Zscaler
Support technical discovery, documentation & issue resolution

✅ Essential Skills & Experience
Strong experience with Azure Virtual Desktop (AVD)
Application packaging (MSIX, App-V, Intune, SCCM)
Understanding of Zero Trust security principles
Experience with Microsoft Entra ID / Conditional Access
Background in app deployment, migration or transformation projects
Strong troubleshooting & communication skills
💡 Desirable
Experience in regulated sectors (utilities, finance, government)
Exposure to M&A / integration programmes

👉 If you're an experienced AVD / Application Packaging Engineer looking for a high-impact integration project, apply now for immediate consideration.

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

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