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We are the&nbsp;1st Hub for Developers!&nbsp;Our motto is&nbsp;“From Developers to Developers”! Our vision is to provide real career opportunities for candidates that want to take the next step in their career. Code.Career is the first process that you will speak&nbsp;with developers (only!) and tech (freak) experts!Our client&nbsp;is the globally leading company for tech solutions and fulfillment capabilities for online sales of flights. They are here to solve complexity, by connecting millions of flights and travelers across the globe. They hold consumer online travel agency brands like Mytrip, GoToGate &amp; Flight Network and serve exclusively Booking.com with flights. Our client has also established strategic partnerships with companies like Skyscanner, Google Flights, TUI, etc.Every day they strive to make the world smaller for their customers and bigger for their people. Their diverse team of more than 2000 passionate professionals is what makes them the industry’s tech wonder and the best in the world at what they do. Their major offices are in Sweden (HQ), Canada, Greece, India, Poland, with the Athens office being one of the largest, hosting around 500 employees working from the center of Athens for the rest of the world.Join them and start today as&nbsp;Senior Java Developer!Position SummaryThey are looking for a passionate back-end developer to join their growing team. The position involves working on Java technologies, developing/maintaining their core back-end software system and facing fresh challenges along with your team members every day. The successful candidate must be knowledgeable in the field of software development and eager to contribute &amp; work in a fast-paced, ever changing environment.The position will be located at their&nbsp;Athens office.Responsibilities<ul><li>You will be part of a team, who designs and implements features for their core back-end system, which handles from tens to hundreds of millions requests per day</li><li>Your code should be designed with performance and quality in mind; you will test your code and write automated tests</li><li>You document and communicate your work with your team in order to deliver daily releases</li><li>You will work closely with software, product developers and QA engineers</li><li>You will be reviewing code, and your code will be reviewed</li><li>As part of the team, you will participate in the collaborative team activities</li></ul>Their StackJava 17, Gradle, MySQL 8, MemSQL, ScyllaDB, Couchbase, JUnit5/TestNG, Mockito, Kafka, Hibernate, Elastic / ELK, Kibana, Grafana, Jenkins, Git &amp; Bitbucket, Intelli, GraphQL etc.Of course you don’t have to be familiar with all of they tech stack. They will support you in your journey with them!Requirements<ul><li>You are a back-end developer with 7+ years of previous working experience, of which 5+ years are on the Java stack</li><li>You have experience with at least one large-scale, high-volume production environment</li><li>You write code which is both readable and performant, and, you feel right at home with OOP, multi-tier architecture</li><li>You are a proponent of commonly used Design Patterns and SOLID Principles, and, deliver code that is well-tested and well-documented</li><li>You have a positive mindset, and you are motivated by challenging projects; new and existing. Rest assured we have a lot going on around here!</li><li>You know about Web Services development and integration with at least one of SOAP and REST, GraphQL</li><li>You have great communication skills in English</li><li>You have a legal permit to work in Greece</li><li>You have any military obligations fulfilled (for Greek male candidates)</li></ul>The below will be considered an asset:<ul><li>You have knowledge of the travel industry, and specifically, flights</li><li>You have knowledge using the API of at least one of the major Global Distribution Systems</li><li>Experience on Unix/Linux environments</li></ul>BENEFITSWhat they offerThey are looking for people who would make the world smaller for travelers but want a bigger world of opportunities for themselves. With them you can enjoy:<ul><li>Working in a hybrid model – having the opportunity to work both remotely and at the office! #LIHybrid</li><li>Health Benefits – Through partners, they offer a private health insurance plan. They also offer the possibility to use 2 extra medical leave days in case of need.</li><li>Monthly ticket restaurant card – to spend in one of the thousands affiliated restaurants, cafes, stores or supermarkets across Greece.</li><li>Office in the City – They sit on bright, large floors (over 4000㎡!) in central Athens. Just a short walk from the Ambelokipi Metro station.</li><li>Growth – They believe in personal development and continuous education. They allocate a generous budget each year to spend at conferences, seminars, online courses or other means to learn new things. In addition to this, they continuously organize internal training and workshops, so that they can learn from each other.</li><li>Hackathon and Dev week – They believe in fostering creativity and testing new things. Therefore, they have recurring Hackathon and Dev weeks, where the teams decide what they want to work on.</li><li>Team activities – They also like to schedule company/department/team activities and events outside the office space!</li><li>Fun &amp; Work – They have a relaxed working environment where you can enjoy breakfast, free beverages &amp; fruits, playing ping pong or video games</li></ul>

Senior Java Developer

The Director, AI Quality Engineering Lead ensures that AI systems across the enterprise are safe, fair, reliable, compliant, and observable from pre‑release through continuous operations. This role designs and operates enterprise evaluation frameworks (quality, bias/fairness, robustness, privacy), leads red‑teaming and guardrail development, encodes policy and regulatory requirements as automated checks, and drives metric reporting and post‑incident learning across AI programs. The lead partners closely with Enterprise Architecture, Compliance, Legal/Privacy, Security, Data Governance, and product/engineering teams to enforce quality and safety gates and enable responsible scale. (Aligned to Corporate Policy and Responsible AI principles.) Reporting into the Head of Applied AI Engineering, you will manage a team of QA Engineers and AI Engineers. This role blends deep technical leadership, product engineering strategy, and direct enablement of enterprise use cases and services. You will partner closely with business, legal and technical stakeholders to design and deliver robust, scalable solutions that demonstrate the value of AI across our enterprise in a safe and compliant way. This role is execution-oriented with strong influence on building AI solutions responsibly.Evaluation and Test Strategy<ul><li>Define and run evaluation frameworks for LLMs and multi-modal systems covering performance, fairness, bias, robustness, safety, and privacy.</li><li>Build automatic + human-in-the-loop evaluation pipelines with reproducible scoring, statistical significance, and error analysis.</li><li>Establish SLOs/SLIs for quality (e.g., grounded accuracy, hallucination rate, privacy leak rate, harmful-content rate).</li></ul>Red-Teaming &amp; Safety Guardrails<ul><li>Design and run red-teaming against prompt injection, jailbreaks, sensitive data leakage, tool-abuse, and retrieval abuse.</li><li>Develop guardrail solutions (classification, content safety, PII/PHI detection, grounding checks, allow/deny lists, rate limiting, output filtering) to mitigate hallucinations, leakage, and compliance violations.</li><li>Maintain attack libraries and scenario banks; simulate adversarial behavior and monitor adaptive attacks over time.</li></ul>Pre‑Release Gating &amp; Continuous Assurance<ul><li>Operate pre‑release evaluation gates with baselines, regression checks, canary/A–B testing, and rollback criteria.</li><li>Run continuous evaluation in production with synthetic &amp; real traffic (shadow/ghost testing) and drift, bias, and toxicity monitoring.</li></ul>Stakeholder Leadership &amp; Culture<ul><li>Coach product teams on responsible AI practices and establish quality ownership norms.</li><li>Build a community of practice across Engineering, Security, Data Governance, and Risk—standardizing test data, benchmarks, and review rituals.</li><li>Mentor engineers building evaluation, red-team, and guardrail capabilities.</li></ul>BASIC QUALIFICATIONS<ul><li>7+ years in ML/AI/Platform/Quality roles, including 3+ years evaluating production systems.</li><li>Advanced degree in Computer Science, Engineering or related discipline.</li><li>Proven design &amp; operation of evaluation harnesses and policy-as-code checks in CI/CD.</li><li>Hands-on Python and expertise with evaluation and safety tooling such as: OpenAI Evals, Ragas/LangSmith, DeepEval, Azure AI Content Safety / OpenAI Moderation, Presidio, Guardrails.ai, Nemo, MLFlow, Grafana, Kibana, Azure monitor</li><li>Cloud &amp; MLOps: Azure/AWS, CI/CD (GitHub Actions/Azure DevOps, feature stores, vector DBs (Azure AI Search, OpenSearch, Pinecone), testing in pipelines.</li><li>Excellent communication with executives and engineers</li><li>Experience leading an engineering team.</li></ul>PREFERRED QUALIFICATIONS<ul><li>Led an AI safety/quality function or enterprise red-team program.</li><li>Prior work with AI based applications, tool use/orchestration, and enterprise data governance.</li><li>Regulatory literacy (e.g., GDPR, EU AI Act readiness), and experience collaborating with Compliance/Risk, Security, and Legal.</li><li>Strong grasp of red-team techniques (prompt/indirect injection, jailbreaks, training data extraction, membership inference, model poisoning, tool abuse).</li><li>Experience with retrieval grounding checks, memory governance, and multi-tenant safety controls.</li></ul>

Director, AI Quality Engineering Lead 4946565

We are looking for a pioneering and hands-on Senior&nbsp;Data &amp; Insights Engineer, as we accelerate our group-wide digital transformation, to join our team.The Scope of the PositionThis position constitutes a unique opportunity to build our data analytics capabilities from inception.The Senior Data &amp; Insights Engineer will serve as the architect and artisan of our data ecosystem, responsible for the design, development, and maintenance of data pipelines, data warehousing solutions, and business intelligence systems. This role encompasses the delivery of dashboards, AI-driven insights, and recommendation engines to support informed decision-making.We expect this role to be AI-augmented:&nbsp;the ideal candidate will leverage modern AI tools to accelerate development, enhance analysis, and maximize impact. We're looking for a dedicated builder, committed to fostering a data-driven culture and enabling the business to leverage actionable insights effectively.Duties and Responsibilities-&nbsp;Architect &amp; Build: Design, deploy, and manage the Group's end-to-end data infrastructure, including ETL/ELT processes, data lake, and data warehouse solutions (on platforms such as Azure or SAP).-&nbsp;Data Pipeline Development: Develop robust, scalable, and reliable data pipelines to ingest, process, and integrate data from diverse sources, with a primary focus on SAP, Primavera, and other business systems.-&nbsp;Insight Generation: Support the Principal Reporting Analyst in delivering data-driven solutions to business leaders across all subsidiaries, by architecting KPIs, dashboards, and analytical models aligned with business objectives.-&nbsp;BI &amp; Reporting: Own the development and maintenance of our Business Intelligence platform. Build intuitive and impactful reports and dashboards that provide clear, actionable insights for the leadership team.- Advanced Analytics: Proactively analyze data to identify trends, spot anomalies, and uncover opportunities for operational efficiency, cost savings, and performance improvement. Explore and implement AI/ML models for predictive insights and recommendations.-&nbsp;Data Governance &amp; Quality: Establish and enforce data quality standards and governance practices to ensure all data is accurate, consistent, and trustworthy.-&nbsp;Collaboration &amp; Expertise: Act as a key resource for data-related questions. Collaborate with our SAP consultants to ensure seamless data extraction and work with the wider IT team to ensure solutions are secure, scalable, and aligned with our enterprise architecture.Job Qualifications and Requirements:-&nbsp; A Bachelor's and/or Master's degree in Computer Science or Engineering.- Minimum 5 years of progressive experience in a data engineering and BI development role, with a proven track record of building data solutions in enterprise environments.- Expert-level proficiency in SQL and Python for data manipulation, pipeline development, and automation. Strong experience with ETL/ELT concepts and tools.- Hands-on experience with cloud data platforms (preferably Azure), including data lakes, data warehouses, and analytics services. Solid understanding of SAP data structures and integration capabilities (SAP BW, HANA, or similar).- Proficiency with modern BI and data visualization tools (e.g., SAP Analytics Cloud, Power BI, Tableau).- Familiarity with data modeling, data warehousing, and data lake concepts.- Exposure to&nbsp;anomaly detection, forecasting or recommendation systems &amp; projects is a plus.&nbsp;The Company offers:<ul><li>A competitive compensation package</li><li>Private medical insurance</li><li>The opportunity to build and own the data strategy for one of the largest and most impactful groups in Greece, with direct executive-level visibility.</li><li>A central role in a dynamic leadership team committed to growth and innovation, providing ample opportunities for professional growth and continuous learning.</li><li>Opportunities for continuous learning and professional growth</li><li>A positive and collaborative working environment</li><li>Committed to providing a healthy and safe workplace for all team members</li></ul>We are working together, committed to creating a diverse and inclusive environment for all!Social Impact footprint:<ul><li>We contribute to Greece's green transition!</li><li>We support Greek suppliers!</li><li>We achieve near-total recycling. We recycled equivalent to 96.7% of Construction, Demolition, and Excavation Waste.</li><li>We operate responsibly!</li></ul>We value your privacy. All personal data provided in your application and CV will be kept completely confidential. &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;Join our community and let’s build your future together!

Senior Data & Insights Engineer

UNIC Athens, the University of Nicosia's academic and research base in Greece, combining internationally ranked teaching with state-of-the-art facilities, is seeking a Senior Campus Sensor &amp; Systems Operations Engineer&nbsp;to join its team.This role owns the on-campus hardware layer that feeds our data and AI platforms: antennas, receivers, environmental stations, cameras, radars, timing systems, and the on-prem servers that tie them together. You’re the person who makes sure “the machines are alive” and the data keeps flowing.The work is hands-on, rooftop and rack-level, plus enough Linux and networking to keep a small sensor observatory running smoothly.&nbsp;Responsibilities:&nbsp;Keep a campus-scale sensor observatory onlineMonitor health of diverse sensors: RF receivers, satellite downlinks, short-range radars, optical/IR cameras, acoustic arrays, seismic/structural, weather, and air-quality stations.Diagnose issues across power, RF signal, network, and compute layers; coordinate timely fixes.Maintain inventories, diagrams, and simple runbooks for each subsystem.Operate on-prem compute and storage nodesMaintain a small fleet of Linux servers dedicated to signal processing, media ingest, and sensor fusion.Handle OS updates, basic security hardening, disk/CPU monitoring, and log rotation.Work with central platform engineers to ensure data lands in the right queues/buckets/streams.Manage power, networking, and timing for sensorsOversee PoE switches, rooftop cabinets, UPS feeds, and basic environmental monitoring.Ensure reliable fibre/copper connectivity between rooftop cabinets, comms rooms, and core network.Operate and monitor GNSS-based timing / reference equipment used for precise time-stamping.Support installation, maintenance, and calibrationPlan and execute sensor deployments and relocations (roof, mast, dish frame, façades) with facilities.Coordinate periodic calibrations (e.g. weather, air quality, structural/ground sensors) with vendors and internal teams.Enforce safe working practices for rooftop and equipment-room work.Act as the bridge between campus and platform teamsReport status of on-campus systems and upcoming maintenance windows.Help test new data feeds, firmware updates, and configuration changes before they go to production.Provide clear feedback on physical constraints and operational realities back to architects and data/AI teams.Additionally:Daily / weekly operational checks on key systems, with clear escalation when something drifts or fails.Set up and maintain monitoring dashboards and alerts (metrics, logs, basic traces) for sensors and compute.Script routine tasks in Bash/Python (health checks, log scrapes, simple data sanity checks).Coordinate with vendors and contractors for specialized repairs and installs.Maintain accurate documentation (rack layouts, IP plans, cabling runs, rooftop layouts, change logs).&nbsp;Qualifications:&nbsp;Education:<ul><li>A BSc in Computer Engineering, or Electrical Engineering or related field.</li></ul>&nbsp;Experience:4+ years in a systems / field / instrumentation / NOC / SRE-style role, working with real hardware (not just cloud).&nbsp;Required Skills:&nbsp;Solid Linux experience (Ubuntu or similar): networking, system services, storage, logging.Strong practical networking skills: VLANs, PoE switches, fibre vs copper, basic routing, VPNs.Hands-on experience with at least some of:Environmental or industrial sensors (weather, air quality, structural, seismic, etc.), orRF / broadcast / telecom equipment, orCCTV / video analytics / radar / acoustic sensing.Comfortable reading wiring diagrams, labelling cables, and keeping tidy racks/cabinets.Able to work safely on rooftops and with facilities teams; familiarity with basic electrical and lightning/surge safety.Clear written documentation skills and enough English to collaborate with remote engineering teams.&nbsp;Additional Skills:&nbsp;Experience running or supporting a small observatory, lab, broadcast site, or similar multi-sensor facility.Exposure to GNSS timing, NTP/PTP, or other time-synchronization systems.Familiarity with Prometheus/Grafana or similar monitoring stacks.Basic RF concepts (antennas, coax, gain/noise, filters) or environmental monitoring concepts (calibration, QA/QC).Greek language skills and prior work on a university or research campus.&nbsp;What success looks like:Within a few weeks, you know every major sensor, cabinet, and server by name and location.Within a few months, outages are rare, short, and well-understood, with clear runbooks and monitoring in place.The data and AI teams treat the campus observatory as a reliable “black box” they can build on, because you keep it that way.

Θέσεις Εργασίας Διευθυντής Πωλήσεων Ελλάδα, Πληροφορική - Σελίδα 24

senior java developer

Code.Hub

director, ai quality engineering lead 4946565

Pfizer Hellas

senior data & insights engineer

Aktor Group

senior campus sensor & systems operations engineer - unic athens

University of Nicosia

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