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Our Client is seeking a visionary Senior Java Developer to serve as the Technical Lead and Architectural Owner for their mission-critical C4I system backend server. The ideal candidate will possess deep expertise in Java 11+, Spring Boot, and Microservices architecture, coupled with a proven track record in designing resilient, high-volume, low- latency systems. This role is responsible for governing the security, scalability, performance, and data integrity across the entire server ecosystem, including complex spatial and real-time data integration.Key Responsibilities: • System Architecture &amp; Resilience: Architect and lead the implementation of a scalable microservices architecture using Spring Boot, ensuring high availability and fault-tolerance. • Data Architecture &amp; Governance: Own the design and optimization of the core data layers, including developing strategies for MongoDB sharding and replication for high volume data, and defining the caching strategy using Java cache or Redis. • Multi-Protocol Integration Design: Define and govern the secure implementation of all client-server communication protocols, including high- throughput, low-latency communication via WebSocket and secure RESTful API contracts. • Security Strategy &amp; Data Integrity: Design and enforce comprehensive security measures using Spring Security, including defining policies for OAuth2/JWT access control, API security hardening, and mandating data integrity controls (e.g., audit trails, strong validation rules) for mission-critical data. • Complex External Integration: Architect and oversee the integration with critical external systems and specialized services (e.g., GeoServer integration via PostGIS), ensuring data synchronization, format translation, and system reliability across boundaries. • CI/CD and Deployment Governance: Own the operational adherence to Continuous Integration/Continuous Deployment (CI/CD) practices. This includes ensuring deployment automation, defining infrastructure-as-code requirements, and maintaining the stability and security of the production environment. • Technical Leadership &amp; Mentorship: Provide high-level technical guidance, mentor mid-level engineers in core Java concepts (concurrency, multi-threading), and enforce rigorous coding and design standards across the team.Qualifications: • Experience: Minimum of 5+ years of commercial experience in Java development, with 3+ years leading complex Spring Boot/Microservices projects. • Core Technology Mastery: Expert proficiency in Java 11+, Spring Boot, and designing scalable enterprise-level applications. • Data Expertise: Deep experience designing, optimizing, and maintaining MongoDB and utilizing Redis for caching, message brokering, and high-performance throughput. • Security &amp; Architecture: Proven ability to architect secure systems, experience with Spring Security, JWT/OAuth2, and a solid understanding of distributed transaction management. • Concurrency: Strong knowledge of multi-threading and concurrency concepts in Java. • Soft Skills: Exceptional communication, leadership, and architectural problem-solving skills with the ability to define technical solutions from ambiguous requirements.Benefits PackageThey are committed to investing in the well-being, professional growth, and overall satisfaction of their team members. As part of their benefits package, they offer:• Performance Bonus: Receive a performance-based bonus calculated as a percentage of your annual salary, rewarding your contributions and success. • Private Health Insurance: Comprehensive private health insurance coverage to safeguard your health and peace of mind. • Learning &amp; Development Budget: Access a dedicated budget for online courses, certifications, and professional development programs to support your continuous learning journey. • Vouchers &amp; Discounts: Enjoy vouchers for essential goods, services, and recreational activities to enhance your lifestyle. • Multifaceted Knowledge &amp; Internal Training: Take part in internal training programs designed to provide a holistic understanding of their business and industry. They emphasize cross-functional learning to empower you with diverse skills and knowledge.

Senior Java/Spring Boot Lead Engineer (Backend Architect)

Our Client is seeking an exceptionally skilled and experienced Senior React Native Lead Engineer to serve as the definitive technical authority and architectural owner for their mission-critical Android mobile application within the complex C4I ecosystem. The ideal candidate will possess deep expertise in React Native, profound mastery of the underlying Android native platform (Java/Kotlin), and a proven track record of designing high-reliability, fault-tolerant, and secure systems. This role is responsible for the technical roadmap, architectural governance, custom native module definition, and mentorship of the entire mobile team, ensuring the application meets rigorous operational standards, including continuity of functions and zero data loss.Key Responsibilities: • Architectural Ownership: Define, lead, and drive the technical roadmap and architectural vision for the mobile application, ensuring scalability, maintainability, and alignment with the overall system architecture. • Native Bridge Design: Architect and implement complex, high-reliability custom Native Modules, specifically Turbo Native Modules (Java/Kotlin), to facilitate seamless integration with specialized components, proprietary systems (Desktop App), Health SDKs, and Wearable devices. • Performance Optimization Strategy: Define the comprehensive strategy for performance optimization, profiling both the JavaScript and Android Native UI threads to eliminate rendering bottlenecks and ensure a smooth, instantaneous user experience required for operational use. • Build &amp; Deployment Oversight: Own the Continuous Integration/Continuous Deployment (CI/CD) pipeline for Android, including optimizing native build configurations (e.g., managing ABIs, implementing caching tools) to maximize developer efficiency and reliable deployment. • Technical Leadership &amp; Mentorship: Provide high-level technical guidance, conduct rigorous code reviews, and mentor mid-level and junior engineers, acting as a technical multiplier to elevate the team’s overall competence and adherence to quality standards. • Ecosystem Interoperability: Define the client-server communication contracts, potentially leveraging modern, low-latency protocols like WebSocket, to ensure real-time data flow and robust synchronization across the entire environment.Qualifications: • Experience: Minimum of 5+ years of commercial software engineering experience, with 3+ years specifically leading or acting as a principal contributor on complex React Native projects. • Technical Mastery: Deep, demonstrable expertise in JavaScript and modern React Native architecture (knowledge of Fabric/Turbo Modules concepts highly preferred). • Android Native Proficiency: Advanced knowledge of Android Native development (Java/Kotlin) and the Android SDK, necessary for designing, debugging, and optimizing custom native interfaces and modules. • Performance Expertise: Proven experience in complex performance optimization, memory management, and debugging in a resource-constrained mobile environment. • Security: Strong understanding of mobile security protocols, data encryption (at rest and in transit), code hardening techniques (Hermes, Proguard/R8), and secret management best practices. • Soft Skills: Excellent verbal and written communication skills, with the ability to articulate complex architectural decisions to technical and non-technical stakeholders.Benefits Package They are committed to investing in the well-being, professional growth, and overall satisfaction of their team members. As part of their benefits package, they offer:• Performance Bonus: Receive a performance-based bonus calculated as a percentage of your annual salary, rewarding your contributions and success. • Private Health Insurance: Comprehensive private health insurance coverage to safeguard your health and peace of mind. • Learning &amp; Development Budget: Access a dedicated budget for online courses, certifications, and professional development programs to support your continuous learning journey. • Vouchers &amp; Discounts: Enjoy vouchers for essential goods, services, and recreational activities to enhance your lifestyle. • Multifaceted Knowledge &amp; Internal Training: Take part in internal training programs designed to provide a holistic understanding of our business and industry. They emphasize cross-functional learning to empower you with diverse skills and knowledge.&nbsp;

Senior React Native Lead Engineer (Mobile Architect)

The Software Technical Director is a senior technical leader responsible for defining the technology vision, overseeing the architecture and guiding the implementation of enterprise-grade public sector software solutions. This role combines deep hands-on expertise in (Java) backend development with strong proficiency in modern frontend frameworks such as ReactJS and Angular.What will you need to do:Projects, Customer-Facing &amp; Pre-Sales Engagement:<ul><li>Support sales teams in technical discovery, RFP responses, and solution pitching.</li><li>Present technical solutions and architecture proposals to clients in meetings, workshops and executive-level discussions.</li><li>Build strong relationships by translating complex technical concepts into business value.</li><li>Collaborate with project managers and stakeholders.</li><li>Oversee project timelines, resource planning, and risk management.</li><li>Ensure high-quality delivery through automation, CI/CD, and testing strategies.</li></ul>Technical Leadership &amp; Architecture:<ul><li>Define and maintain the overall technical architecture for backend and frontend systems.</li><li>Lead architectural design for scalable, secure, and high-performance applications.</li><li>Evaluate and select technology stacks, frameworks, tools, and coding standards.</li><li>Convert projects’ requirements into actionable technical requirements.</li><li>Ensure consistent application of design patterns, microservices principles, and REST/SOAP API best practices.</li><li>Oversee backend development using Java, Spring Boot, Quarkus, and related technologies.</li><li>Drive improvements in performance, security, and maintainability of backend services.</li><li>Design and optimize database schemas, data flow, and integration points.</li><li>Lead efforts in system modernization, refactoring, and cloud adoption.</li><li>Provide technical oversight for applications built with ReactJS and Angular.</li><li>Establish reusable UI components, state management patterns, and architecture best practices.</li><li>Ensure consistent UX, responsive design, and accessibility compliance.</li><li>Ensure adherence to cybersecurity best practices.</li><li>Conduct code reviews and enforce engineering best practices.</li><li>Champion automated testing, code quality metrics, and DevOps principles.</li><li>Implement monitoring, logging, and observability standards.</li></ul>Team Leadership &amp; Mentorship:<ul><li>Lead and mentor engineering teams.</li><li>Foster a culture of innovation, collaboration, and continuous improvement.</li><li>Guide career growth and skill development.</li></ul>What will you bring:<ul><li>Bachelor’s or Master’s degree in Computer Science or related field.</li><li>10+ years of software engineering experience.</li><li>5+ years in senior leadership roles, guiding engineering teams and managing complex projects.</li><li>Experience presenting solutions to customers and executives.</li><li>Expert proficiency in Java, Spring Boot, microservices, and REST API design.</li><li>Strong experience with React, Angular, and modern frontend architectures.</li><li>Understanding of cloud platforms and containerization.</li><li>Experience.</li></ul>What They Offer:&nbsp;<ul><li>Competitive remuneration package&nbsp;</li><li>Medical &amp; Life Insurance Plan&nbsp;</li><li>Experiences within a multinational environment and global teams&nbsp;</li><li>Team spirit environment with passion for technology&nbsp;</li><li>Development opportunities within a market-leading, fast-growing organization&nbsp;</li></ul>

Software Technical Director (Public Sector)

Our Client is seeking a highly skilled, hands-on Senior DevOps Engineer to serve as the Department Head for their core infrastructure and software delivery platforms. This role requires a seasoned engineer who bridges the gap between software development and operational reality, possessing deep expertise in managing hybrid environments that span both modern cloud infrastructure and complex on-premises deployments. You will be the primary architectural owner for automating their delivery ecosystem, responsible for designing and implementing resilient, secure infrastructure-as-code solutions and managing the build lifecycles for mission-critical and Enterprise applications.Key Responsibilities• Department Head Role &amp; Strategic Ownership: Set technical for the Software Delivery department (IaC,CI/CD, configuration management, deployment artifacts) and manage personnel. • Commissioning Strategy: Turn client requirements into production-ready configuration bundles. • Product Validation Authority: Establish end-to-end validation standards ,guaranteeing that all delivered environments meet production level performance, compliance and flawless delivery. • Service Lifecycle Design Ownership: You are responsible for ensuring that standardized, automated procedures for future updates, security patching, and reliable backup/restore mechanisms and well established networking (VPN, routing, LB, firewall) are delivered as part of the initial build. • Java Ecosystem Pipeline Leadership: Manage artifact repositories and automating the deployment of JAR/WAR files across varied runtime environments. • Data Layer Provisioning &amp; Management: Define and implement automation strategies for provisioning, configuring, and managing databases in various environments. • Technical Mentorship &amp; Escalation: Serve as the primary technical escalation point, provide mentoring to mid-level and junior engineers, fostering a culture of engineering excellence and rigorous automation standards.Qualifications • Education: Bachelor’s Degree in Computer Science, Information Technology, Computer Engineering, or a related field. • Experience: Minimum of 5+ years of hands-on technical experience in DevOps or Systems Engineering, with at least 2+ years in a technical leadership or senior role guiding infrastructure decisions. • Core Technology Mastery: Expert proficiency in Infrastructure-as-Code (Terraform and Ansible preferred). Strong, proven administration skills in both Linux (RHEL/Ubuntu) and Windows Server environments. • Proactive Product Health: Expertise on monitoring, logging, and alerting systems (Prometheus, Grafana, ELK) to maintain service health. • Java Build Expertise: Hands-on experience managing the service lifecycle of complex Java applications (Java 11 or newer), including deep familiarity with JVM ecosystem tools and CI/CD integration (e.g., Jenkins, GitLab CI). • Hybrid Environment Experience: Demonstrated experience managing infrastructure across both public cloud platforms (AWS/Azure) and on- premises data centers (VMware/Bare Metal). Understanding the networking complexities of hybrid connectivity is essential. • Database &amp; Scripting: Experience with automated provisioning and configuration of relational and/or NoSQL databases. Strong scripting abilities in Python, Bash, or PowerShell. • Soft Skills: Proven ability to lead technical initiatives, translate complex requirements into executable infrastructure plans, and effectively mentor engineering teams in best practices.Benefits PackageThey are committed to investing in the well-being, professional growth, and overall satisfaction of their team members. As part of their benefits package, they offer:• Hybrid Working: Exploring a hybrid work approach could provide flexibility and improved work-life balance, with the understanding that arrangements will be evaluated and adjusted as needed to align with organizational priorities and team needs. • Performance Bonus: Receive a performance-based bonus calculated as a percentage of your annual salary, rewarding your contributions and success. • Private Health Insurance: Comprehensive private health insurance coverage to safeguard your health and peace of mind. • Learning &amp; Development Budget: Access a dedicated budget for online courses, certifications, and professional development programs to support your continuous learning journey. • Vouchers &amp; Discounts: Enjoy vouchers for essential goods, services, and recreational activities to enhance your lifestyle. • Multifaceted Knowledge &amp; Internal Training: Take part in internal training programs designed to provide a holistic understanding of their business and industry. They emphasize cross-functional learning to empower you with diverse skills and knowledge.&nbsp;

Senior DevOps Engineer

Data and Analytics is a key enabler of their ambitious business strategy and the Senior Data Scientist role is critical for their growing global organization. Working closely with the Head of Data &amp; Analytics, this role will help guide the business toward an agile, value-focused Business Intelligence and Advanced Analytics mindset and capability—built on a shared data asset to support and elevate their global and local reporting, analytics and AI adoption. The role will collaborate with stakeholders to ensure that their data is accessible to all and will help drive the cultural shift toward becoming a data-driven organization.Key Tasks &amp; Responsibilities <ul><li>Understands the decision-making process, workflows, and business and information needs of regional commercial and functional leads and their teams.</li><li>Translates business needs into analytics/reporting requirements to support executive decisions and workflows with required information</li><li>Coordinates with data consumers (functional and commercial leads) to understand their information needs</li><li>Design, build, and optimize BI dashboards, reports, and visualizations to provide actionable insights to stakeholders</li><li>Manage and configure BI tools (e.g., Power BI) to meet business requirements and ensure efficient performance</li><li>Provide ongoing support to business users, offering training on BI tools and data-driven decision-making techniques across different levels of the organization</li><li>Interacts with IT application specialists (e.g., S/4Hana) and external application vendors to understand how information is stored, modeled, and tagged</li><li>Develops frameworks and processes to analyze structured and unstructured information collected through different platforms and sources</li><li>Works closely with global and regional heads and managers for knowledge sharing, mentoring, and training</li><li>Acts as a go-to-person for end users to interpret and use information</li><li>Stay up to date with the latest data science and AI tools and trends, and apply them to improve existing models and processes</li><li>Help to foster cultural change towards a data driven culture and mindset</li></ul>Key Leadership Competencies <ul><li>Drive for results – focused on successful outcomes</li><li>Resilient – overcomes challenges and obstacles to succeed</li><li>Persuasive – urge, influence and convince others</li><li>Methodical – orderly in action, thought and expression</li><li>Flexible – adapt to situation and people as required</li><li>Quick to act – start without delay</li></ul>Key Functional Competencies &amp; Relevant Experience <ul><li>Bachelor’s or Master’s degree in Data Science, Computer Science, Engineering, or a related field</li><li>At least 3 years of professional experience in a data analysis or data science role</li><li>Minimum 2 years of experience across Microsoft Azure services and Power BI</li><li>Ability to translate complex data into actionable insights, providing strategic recommendations to drive business decisions</li><li>Proficient in SQL for data querying and in at least one modern programming language (e.g., Python, R) for data analysis, automation, and machine learning tasks</li><li>Familiarity with data warehousing techniques and ETL processes</li><li>Demonstrated ability to engage both developers and business stakeholders (global, regional leads) to achieve target outcomes</li><li>Ability to build data and analytics governance culture, and embed this in their teams and ways of working</li><li>Experience working with SAP systems and functional knowledge of Sales, Marketing, and Supply Chain operations within the FMCG sector is considered an asset.</li><li>Fluent in English</li></ul>&nbsp;

Senior Data Scientist

Our Client&nbsp;is seeking an&nbsp;Azure Cloud Engineer,&nbsp;responsible for designing, implementing, and managing secure, scalable, and automated Azure Cloud solutions by integrating DevOps and security practices throughout the Software Development Lifecycle (SDLC).Core ResponsibilitiesA. Cloud Architecture &amp; Infrastructure<ul><li>Deep knowledge of Azure infrastructure setup using both the Azure Portal and Infrastructure as Code (IaC) tools (e.g., Terraform, Bicep, ARM templates), including designing and deploying cloud-native, secure, and resilient solutions.</li><li>Capability to conduct Proof of Concepts (PoCs) to evaluate and validate new technologies and tools relevant to Azure DevOps operations, providing actionable recommendations for organizational adoption.</li><li>Familiarity with creating and managing Azure Policies &amp; Blueprints</li></ul>B. DevOps &amp; Automation<ul><li>Advanced expertise in configuring and optimizing Azure DevOps tools, including the setup and management of CI/CD pipelines, repositories, artifacts, and automation of workflows to enhance development productivity.</li><li>Automate deployments and integrate security gates in CI/CD pipelines using tools like OWASP ZAP, Snyk, or Microsoft Security DevOps.</li><li>Proficiency in managing secrets and certificates using Azure Key Vault and integrating secure credential handling into CI/CD pipelines.</li><li>Familiarity with design and implement automated security gates in CI/CD pipelines.</li></ul>C. Security &amp; Compliance<ul><li>Expertise in integrating security practices into DevOps workflows, including vulnerability scanning, automated compliance checks, and using tools such as SonarQube to ensure secure and compliant operations.</li><li>Familiarity with container security in AKS (image scanning and runtime protection).</li><li>Familiarity with Azure Security Center, Defender for Cloud, for proactive threat detection and incident response.</li><li>Familiarity with Conditional Access, Privileged Identity Management (PIM), and enforce MFA policies for secure identity management.</li></ul>D. Monitoring &amp; Incident Management<ul><li>Strong problem-solving skills with hands-on experience in incident and issue tracking, collaborating with System Engineers to resolve critical issues in Azure-based systems and pipelines.</li></ul>E. Collaboration &amp; Governance<ul><li>Capability to serve in a technical project management role, coordinating Azure implementation tasks, managing risks, and aligning technical decisions with project goals.</li><li>Mentorship and training skills to upskill internal teams, providing guidance on managing Azure DevOps environments, handling incidents, and adopting best practices independently.</li><li>Effective communication and collaboration skills to work across cross-functional teams and stakeholders, ensuring alignment of DevOps practices with business and technical objectives.</li><li>Hybrid Role: Minimum 2 days per week on-site at the Athens Headquarters.</li><li>Candidates residing elsewhere in Greece must be willing to travel to Athens once every other month.</li><li>Languages: Fluent in Greek and English (both written and spoken).</li></ul>Experience – Certifications<ul><li>4+ years minimum</li><li>With lead implementer experience (not just participation)</li></ul>Should have<ul><li>AZ-104: Microsoft Certified: Azure Administrator Associate</li><li>AZ-700: Microsoft Certified: Azure Network Engineer Associate</li><li>SC-300: Microsoft Identity and Access Administrator</li></ul>Could have<ul><li>AZ-305: Microsoft Certified: Azure Solutions Architect Expert</li><li>AZ-400: Microsoft Certified: DevOps Engineer Expert</li></ul>

Azure Cloud Engineer / DevSecOps

Our client is seeking a Mid–Senior Front-End Developer with strong experience in Angular to join their team in Athens. In this role, you will work closely with UI/UX designers, backend developers, and product managers to deliver modern, high-performance web applications.AI adoption is an important part of the client’s technology direction. You will have the opportunity to leverage AI tools throughout the development lifecycle, as well as contribute ideas on how AI can be integrated into the product to enhance the educational experience.Key Responsibilities● Develop and maintain high-quality web applications using Angular (latest versions). ● Design and implement responsive and accessible UI components aligned with Material Design principles ● Optimise application performance and ensure cross-browser compatibility ● Collaborate closely with product, design, and backend teams to deliver user-friendly solutions ● Integrate front-end components with backend services via RESTful APIs ● Write clean, scalable, and maintainable code following best development practices ● Provide guidance and support to junior developers when needed ● Stay up to date with emerging front-end technologies, trends, and AI-driven tools ● Contribute ideas for AI integration that enhance product functionality and user experienceRequired Qualifications &amp; Skills● 3+ years of professional front-end development experience ● Strong expertise in Angular (Angular 17+ preferred) ● Proficiency in HTML, CSS, SCSS, JavaScript, and TypeScript ● Experience with RxJS, NgRx, or other state management libraries ● Knowledge of responsive design, accessibility standards (ARIA), and performance optimisation ● Solid understanding of RESTful APIs and front-end integration with web services ● Experience with Git and version control best practices ● Strong problem-solving skills and attention to detail ● Familiarity with Agile/Scrum methodologies ● Interest in AI and its application in development workflows and end-user experience ● Experience building Progressive Web Applications (PWA) ● Understanding of front-end security best practicesWhat they offer● Competitive compensation ● Opportunity to participate in the company’s stock options program ● Private health insurance ● Meal allowance and additional benefits ● Collaborative and supportive working environment ● Continuous learning and professional development opportunities, including AI technologies ● An innovative setting where AI adoption is encouraged to improve both product quality and development efficiency

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software technical director (public sector)

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senior data scientist

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