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Are you a dynamic and results-driven Project Manager with a passion for security systems? G4S, as part of Allied Universal, the world's leading security services provider, is expanding its team in Metamorphosis, Attica, Greece, and we're seeking a talented individual to join our Installations &amp; Large Projects Team.As a Project Manager, you'll play a pivotal role in ensuring the successful delivery of complex security projects. You'll coordinate people, processes, and resources to achieve on-time, within-budget, and high-quality project outcomes.Responsibilities:<ul><li>Project Leadership:<ul><li>Manage end-to-end project lifecycles, from planning and execution to completion</li><li>Develop comprehensive project plans, defining scope, timelines, and budgets</li><li>Proactively identify and mitigate project risks</li><li>Monitor and control project progress, ensuring adherence to quality and safety standards</li></ul></li><li>Stakeholder Management:<ul><li>Build and maintain strong relationships with clients, subcontractors, and internal teams</li><li>Effectively communicate project status and updates to all stakeholders</li></ul></li><li>Operational Excellence:<ul><li>Optimize resource allocation and utilization</li><li>Maintain accurate project documentation and reporting</li><li>Contribute to continuous improvement initiatives</li></ul></li><li>Coordination:<ul><li>Oversee the coordination of installation and commissioning of security systems</li><li>Manage subcontractor performance and quality</li></ul></li></ul>Job requirementsQualifications:<ul><li>3 years of experience as a Project Manager, ideally within the security or engineering sectors</li><li>Understanding of security systems and infrastructure networks (or a willingness to learn)</li><li>Proven ability to manage complex projects and deliver results</li><li>Excellent communication, interpersonal, and negotiation skills</li><li>Proficiency in MS Office and Google Workspace</li><li>Fluency in Greek and English</li><li>PMP or PRINCE II certification (Preferred)</li><li>Attention to detail and strong organizational skills</li></ul>We Offer:<ul><li>Competitive salary and performance-based bonus</li><li>Comprehensive private health and life insurance</li><li>Company vehicle and travel expense coverage</li><li>Ongoing professional development and training</li><li>Opportunities for global career advancement</li><li>Dynamic and collaborative work environment</li></ul>G4S is committed to Equal Employment Opportunity! If you correspond to the above criteria please don’t hesitate to click the Apply button and send us your resume.

Project Manager

We are looking for a Senior Security Engineer with demonstrated expertise across enterprise security engineering, Microsoft Azure and on-premises infrastructure protection, incident response, and compliance frameworks including ISO 27001:2022 and CMMC. This role requires hands-on technical execution alongside architectural oversight — you will design and operate security controls, drive threat detection capabilities, and own compliance program delivery end-to-end. Security operations must align with NATO cybersecurity standards and requirements.Key Responsibilities<ul><li>Security Engineering &amp; Architecture</li></ul>Design and operationalize enterprise security controls spanning network, endpoint, cloud, and application layers. Lead security architecture reviews for new systems and infrastructure. Implement Zero Trust architectures, network segmentation, IAM, MFA, and least-privilege access models across Microsoft Azure and on-premises/local resource environments. Ensure security configurations align with NATO security standards and requirements.<ul><li>Threat Detection &amp; Incident Response</li></ul>Develop and tune SIEM detection logic, correlation rules, and alerting pipelines. Lead investigation and containment of security incidents including phishing, malware, unauthorized access, and data exfiltration. Own post-incident reviews, root cause analysis, and remediation tracking. Perform digital forensics as required.<ul><li>Vulnerability Management</li></ul>Operate vulnerability scanning programs using tools such as Nessus, Qualys, or Tenable. Conduct risk assessments, prioritize findings by exploitability and business impact, and drive remediation with IT and DevOps teams. Track patching cadence and configuration hardening progress.<ul><li>DevSecOps &amp; Automation</li></ul>Integrate security controls into CI/CD pipelines. Develop automation using Python, Bash, PowerShell, or Terraform for security operations, alerting, and remediation workflows. Implement secrets management, SAST/DAST scanning, and container security controls.<ul><li>CMMC &amp; ISO 27001:2022 Compliance</li></ul>Lead implementation and operational alignment with ISO 27001:2022, including Annex A control mapping, ISMS policy and procedure ownership, internal and external audit coordination, and management reviews. Support CMMC assessment readiness, including control gap analysis, evidence collection, corrective action tracking, and continuous improvement activities. Ensure ongoing compliance with applicable regulatory, contractual, NATO, and customer cybersecurity requirements.<ul><li>Technical Leadership</li></ul>Mentor junior engineers and analysts. Provide technical leadership across security projects and incident response efforts. Collaborate cross-functionally with Engineering, IT, Product, and Leadership on security-by-design initiatives. Work closely with IT and external consultants to achieve security targets and program objectives.Required Qualifications&nbsp;<ul><li>5+ years in cybersecurity engineering or security operations roles</li><li>Strong proficiency in network security fundamentals: firewalls, IDS/IPS, VPN, DNS, TCP/IP</li><li>Hands-on experience with SIEM platforms (Splunk, Microsoft Sentinel, QRadar, or Elastic)</li><li>Deep knowledge of Windows, Linux, Active Directory, Microsoft Azure, and local on-premises infrastructure security</li><li>Practical experience with vulnerability management tools (Nessus, Qualys, or Tenable)</li><li>Demonstrated experience implementing or auditing ISO 27001 ISMS frameworks</li><li>Working knowledge of CMMC or equivalent cybersecurity maturity frameworks</li><li>Familiarity with NATO cybersecurity standards and information security requirements</li><li>Scripting proficiency in Python, PowerShell, or Bash</li><li>Experience with IAM, MFA, SSO, and RBAC implementations</li><li>Strong analytical reasoning and documented written communication skills</li></ul>

Senior Security Engineer

The Embedded Software Engineer – Linux, will operate within a multi-disciplined group of Optical, Mechanical, FPGA, and Electrical Engineers. The candidate will closely collaborate with experts from all fields to define and produce embedded software applications for the company's line of products based on the Linux kernel, and support production and field operations. This position is an excellent opportunity to participate in the definition of new advanced electro-optical systems and have an impact on the company’s growth.Responsibilities<ul><li>Design, develop, test, and maintain embedded software applications for various hardware platforms running a Linux based OS.</li><li>Collaborate with hardware engineers, FPGA engineers and software developers to define the application requirements and specifications.</li><li>Implement kernel modules, low-level drivers, protocols, communication interfaces and applications.</li><li>Optimize the application to ensure high performance, efficiency, and reliability.</li><li>Debug and troubleshoot application-related issues.</li><li>Contribute to the development of technical documentation.</li></ul>Qualifications<ul><li>University degree in a related field.</li><li>Proven experience in embedded Linux-based development.</li><li>Proficiency in C/C++ programming languages.</li><li>Strong understanding of embedded systems, real-time operation, low level HW interfaces and kernel/driver development.</li><li>Familiarity with Yocto Project.</li><li>Proven experience with at least one of the following topics:</li><li>Computer vision applications.</li><li>Graphical User Interface applications.</li><li>Augmented reality applications.</li><li>Experience with version control systems (e.g., Git).</li></ul>Preferred Skills<ul><li>Familiarity with FPGA based embedded systems.</li><li>Familiarity with Zynq and/or NXP iMX series of application processors.</li><li>Familiarity with scripting languages (e.g. Python).</li></ul>&nbsp;

Senior Embedded Software Engineer - Linux

The FPGA team&nbsp;operates within a multi-disciplined group of Optical, Mechanical, Software, and Electrical Engineers. The candidate will closely collaborate with experts from all fields to develop advanced FPGA designs and be responsible for the automatic verification of the FPGA-SoC operation. This position is an excellent opportunity to participate in the development of advanced FPGA-SoC based embedded products and have an impact on the group and company growth.Responsibilities<ul><li>Participate in the definition of the FPGA SoC architecture.</li><li>Develop code and verify core IP blocks for embedded vision algorithms.</li><li>Design the verification strategies for IP blocks and complete FPGA-SoC systems.</li><li>Develop testbenches, simulation blocks, and hardware in the loop designs for the automatic verification, and regression test of FPGA-SoCs.</li><li>Perform synthesis, place-route, and timing closure on FPGAs.</li></ul>Qualifications<ul><li>Degree qualified in Computer Engineering, Electrical Engineering or equivalent.</li><li>Experience developing at least one of Xilinx/Altera/Microsemi programmable devices along with timing closure skills.</li><li>Experience with RTL coding (VHDL preferred) and simulation tools (Mentor graphics preferred)</li><li>Hands-on experience with designing FPGA SoC with microcontrollers and embedded processors.</li><li>Experience with verification methodologies and verification environments.</li><li>Experience with lab tools like oscilloscopes for HW debugging and testing.</li></ul>Preferred Skills<ul><li>Experience with version control systems like Git or SVN.</li><li>Experience with DevOps like processes for FPGA-SoC verification.</li></ul>

FPGA-SoC Engineer

The&nbsp;Senior Embedded Software Engineer&nbsp;will operate within a multi-disciplined group of Optical, Mechanical, FPGA, SW, and Electrical Engineers. The candidate will closely collaborate with experts from all fields to define and produce embedded software for the company's line of products, and support production and field operations. This position is an excellent opportunity to participate in the definition of new advanced electro-optical systems and have an impact on the company growth.Responsibilities<ul><li>Collaborate with hardware engineers, FPGA engineers and software developers to define firmware requirements and specifications.</li><li>Design, develop, test, and maintain embedded firmware for various hardware platforms.</li><li>Implement low-level drivers, protocols, and communication interfaces.</li><li>Optimize firmware to ensure high performance, efficiency, and reliability.</li><li>Debug and troubleshoot firmware-related issues.</li><li>Contribute to the development of technical documentation.</li></ul>Qualifications<ul><li>University degree in a related field.</li><li>Proven experience in embedded firmware development.</li><li>Proficiency in C/C++ programming languages.</li><li>Strong understanding of embedded systems, real-time operating systems (RTOS), and bare-metal programming.</li><li>Knowledge of communication protocols (e.g., UART, SPI, I2C).</li><li>Experience with version control systems (e.g., Git).</li><li>Experience with 32bit ARM architectures and HW platforms.</li></ul>Preferred Skills<ul><li>Familiarity with FPGA based embedded systems.</li><li>Understanding of hardware design principles and electronics boards documentation (schematics, layout etc).</li><li>Familiarity with scripting languages (e.g. Python).</li><li>Experience with Embedded Linux systems and development.</li></ul>

Senior Embedded Software Engineer

The Software Development Engineer will be part of Theon Sensors Electronics Team, developing electro-optical systems for defense and security applications.&nbsp;The engineer will participate in the system requirement analysis and collaborate with a multidiscipline team of PCB, embedded, and FPGA engineers to define the software architecture, decide on the appropriate development methodologies, software frameworks and proceed with the software development.&nbsp;Candidate Profile:&nbsp;Degree in Electrical Engineering, Computer Engineering, Computer Science, Software Engineering or related discipline.Application development experience targeting both standard and Embedded computing platforms for Windows OS and Linux Distributions.Experience with SW development ecosystem (scripting languages, toolchains, libraries, version control tools etc).Standard software development skills (C/C++ programming language, testing, continuous integration).Familiarity with networking concepts and development of network applications (TCP/IP stack, UDP, etc.).Development of USB device drivers for Windows OS and Linux Kernel/User Space.&nbsp;Desired Skills:Experience in HW-related SW development and debugging for embedded systems (microcontrollers, JTAG, oscilloscopes, etc.)<ul><li>Machine vision experience and machine vision frameworks and libraries (e.g. OpenCV).</li></ul>

Θέσεις Εργασίας Κορωπί, Πληροφορική

project manager

G4S

senior security engineer

THEON International

senior embedded software engineer - linux

THEON International

fpga-soc engineer

THEON International

senior embedded software engineer

THEON International

software development engineer

THEON International

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