26/6/2026

Are you an experienced, hands-on Senior Systems Administrator looking to manage and evolve a diverse, high-scale IT infrastructure? Do you want to join a leading enterprise and work across advanced Linux and Microsoft environments? If yes, this is your chance to become part of a dynamic IT team where your expertise will directly ensure the availability, performance, and security of critical servers and networks!

About the role

We are looking for a talented Senior Systems Administrator to join an established, market-leading company in the financial services sector. In this role, you will be a key hands-on professional responsible for designing, implementing, and maintaining our hybrid infrastructure, evaluating new technologies, and acting as an escalation point for complex incidents.

What’s in it for you:

• Competitive remuneration package.
• Flexible hybrid work model.  
• A structured, modern, and supportive corporate environment.
• The chance to work with cutting-edge technologies and lead technology lifecycle decisions.

What you’ll be doing:

• Ensure the smooth operation, proactive monitoring, and troubleshooting of the company’s infrastructure (servers, storage, networking).  
• Evaluate, design, and implement new systems, services, and infrastructure upgrades.  
• Perform regular security reviews, patching, vulnerability remediation, and infrastructure audits.  
• Maintain system backups and data integrity across all IT-related content (documents, databases, logs).  
• Act as an escalation point for complex production incidents, leading thorough root-cause analysis.  
• Manage clustered, high-availability environments and oversee disaster recovery planning and execution.  
• Maintain accurate technical documentation, system diagrams, and manage infrastructure-related vendor contracts and licenses

What we’re looking for in a System Administrator:

• University degree in Computer Science, Engineering, or a related field.  
• 5+  years of solid experience in a systems administration or infrastructure role.  
• Advanced knowledge in installing, configuring, and deploying Linux Operating Systems (CentOS, Ubuntu) and Web/Application Servers (Apache, Tomcat).  
• Advanced knowledge of VMware Virtualization (vSphere, vCenter Server).  
• Strong experience with Microsoft technologies (Windows Server 2019/2022, Active Directory, Exchange Server, Group Policies).  
• Solid understanding of TCP/IP networking, routing, switching, and Firewall Administration.  
• Experience with SAN Storage Device Administration (Dell, EMC, HP) and Unix Shell Scripting.  
• Familiarity with Enterprise Backup Tools and Avaya Call Center Administration is highly desirable.  
• Excellent command of the English language.  
• Fulfilled military obligations, where applicable.

5+  years of solid experience in a systems administration or infrastructure role.  

If this System Administrator vacancy sounds like you, apply now!

Have some questions first? Contact Valentina Dinamarka at +306949349444, otherwise, feel free to contact me at vdinamarka@randstad.gr.

Please note that for transparency and equity reasons, only those applications made online via our site will be assessed. After the screening of all the CVs received, we will only contact the candidates who meet the requirements of the job to arrange an interview. All applications are considered strictly confidential.

26/6/2026

Are you a Senior Data professional who enjoys mentoring talent and designing high-performance data architectures? Join a global leader in IT consulting and lead the development of robust data solutions for prestigious international clients.

In this role, you will combine your deep technical expertise in the Microsoft SQL ecosystem with business acumen, acting as a technical lighthouse for our junior engineering team.

What’s in it for you:

• Competitive remuneration package & Performance-based bonus.
• Hybrid work model (mix of office and home).
• Private health insurance, Pension plan, and Share purchase plan.
• Monthly meal vouchers (Tickets).
• Leadership exposure: A clear path to managing larger teams and complex project architectures.
• Access to a global network of experts and cutting-edge corporate resources.

The RoleAs a Senior Data Engineer, you will be responsible for the end-to-end design and build of scalable data solutions. You will play a pivotal role in ensuring the quality of our deliverables while providing essential technical guidance and mentorship to junior team members, fostering a culture of excellence.

Your Key Responsibilities:

• Lead the design and implementation of robust data architectures using on-premise MS SQL Server technologies.
• Mentor and guide junior developers, assisting them in technical design and ensuring best practices in database management and ETL processes.
• Develop complex data models that drive strategic business decisions and high-level reporting.
• Collaborate with business stakeholders to translate VBM methodologies into technical requirements.
• Oversee the integration of data flows into visualization tools, ensuring data accuracy and top-tier performance.

What we are looking for:

• University degree in Computer Science, Statistics, Mathematics, or a related Quantitative field.
• Hands-on experience in Data Engineering with a mastery of MS SQL Server (T-SQL, SSIS, Performance Tuning).
• Proven experience in mentoring or leading technical team members.
• Exposure to VBM methodologies or a strong understanding of financial/business data modeling.
• Experience with QlikSense or Qlikview (or similar BI visualization tools like Tableau/Power BI) would be considered as a strong plus.
• Excellent command of the English language.
• A proactive leader with an analytical mindset and a passion for knowledge sharing.

Hands-on experience in Data Engineering with a mastery of MS SQL Server.

Got any questions regarding the position? You can contact Aspasia Amoiridou at +30 6948486093, from Monday to Friday between 10:00 and 16:00. Otherwise, feel free to contact me at aamoiridou@randstad.gr.

We look forward to receiving your application, uploading your updated English CV by clicking the 'apply now' option.

Please note that for transparency and equity reasons, only those applications made online via our site will be assessed. After the screening of all the CVs received, we will only contact the candidates who meet the requirements of the job to arrange an interview. ​All applications are considered strictly confidential.

25/6/2026

Are you an enthusiastic and skilled professional with a can-do attitude, looking to join a dynamic team that offers innovative solutions?  We are seeking a PHP Developer to participate in the analysis, design, development, and maintenance of innovative platforms.

Join a team of energetic professionals and help shape products that make a difference. The PHP Developer position is permanent and full-time, based in Athens.

What We Offer:

• An attractive remuneration package.
• Hybrid working model
• Career prospects in a fast-moving environment.
• A friendly working environment.
• Continuous training and access to online training platforms.
• All the tech equipment you need to work smart.
• The opportunity to get to know a unique and promising business.

What You'll Do:

• Participating in the analysis, design, and development of various projects.
• Building and maintaining highly scalable PHP-based applications.
• Developing REST APIs.
• Ensuring efficiency, performance, and quality in every development phase.
• Applying object-oriented programming principles.
• Utilizing front-end web development skills (HTML, CSS, JavaScript, jQuery).
• Working with MySQL databases.

What You'll Need:

• Knowledge of PHP programming and its capabilities.
• Experience in REST API development.
• Experience in object-oriented programming.
• Experience in front-end web development (HTML, CSS, JavaScript, jQuery).
• Good knowledge of Web Application Security concepts.
• Good knowledge of MySQL.

1+ year of experience as a PHP Developer

Got any questions regarding this PHP Developer position? You can contact Konstantinos Adamopoulos at 6940080281, from Monday to Friday. Otherwise, feel free to contact me at kadamopoulos@randstad.gr.

We look forward to receiving your application, uploading your updated English CV by clicking the 'apply now' option.

In case that your application advances to the next stage, you may be automatically invited to submit a video, answering a few interview questions.

Please note that for transparency and equity reasons, only those applications made online via our site will be assessed. After the screening of all the CVs received, we will only contact the candidates who meet the requirements of the job to arrange an interview. ​All applications are considered strictly confidential.

25/6/2026

Are you a highly skilled Senior Data Infrastructure passionate about building high-performance data layers for the next generation of AI infrastructure? We are looking for an expert to join our AI-native team and own the observability data layer for a high-impact project, ensuring optimal GPU utilization and real-time monitoring of complex SLOs.

The position is full-time, based in Greece, operating under a remote-first / hybrid work model.

The company offers:

• Competitive remuneration package and professional stability within a team boasting high retention rates.
• Ticket restaurant vouchers.
• Remote-first / Hybrid working scheme, providing high autonomy and access to a physical hub for collaboration.
• Join an international-minded team working with a modern stack and zero legacy code.
• Access to professional tooling, including premium AI subscriptions (Claude, Cursor, etc.) and high-end hardware.
• Work within a dynamic environment dedicated to technical excellence and high-impact software development.
• Continuous learning: Thrive in a culture that invests in senior talent and the absolute latest in AI and orchestration technologies.

In this role, you will be responsible for a variety of tasks aimed at optimizing the development lifecycle and infrastructure:

• Design, deploy, and maintain production-grade time-series databases (e.g., InfluxDB, TimescaleDB, VictoriaMetrics, or Thanos) to handle massive data ingestion.
• Own the Prometheus ecosystem end-to-end, architecting cross-region consolidation and automating provisioning via Infrastructure-as-Code.
• Lead Grafana dashboard engineering, creating real-time feeds for health scores, SLO burn-rate queries, and alerting pipelines.
• Architect and manage automated backups, restores, failover, and disaster-recovery runbooks using Terraform and Ansible.
• Perform deep query-performance analysis, including cardinality management, indexing optimization, and down-sampling strategies.
• Work at the intersection of infrastructure and product to ensure seamless metrics collection and storage across all regions.

In order for your profile to match this position, you need to have the following:

• Degree in Computer Science or other relevant disciplines.
• At least 6+ years of professional experience administering databases in production at scale.
• Expert-level proficiency in PromQL and a solid understanding of system design, concurrency, and data consistency.
• Hands-on mastery of at least two of the following: Prometheus, VictoriaMetrics, InfluxDB, TimescaleDB, or ClickHouse.
• Proven experience scaling Prometheus and tuning Thanos, Cortex, or Mimir with cloud object-store backends.
• Advanced optimization skills, including flame-graph profiling, read-path parallelism tuning, and series-churn analysis.

Considered an Asset:

• Deep experience with Kubernetes, Consul, and Ansible.
• Familiarity with the full Observability stack (OpenTelemetry, Loki, Tempo/Jaeger).
• Knowledge of Infrastructure-as-Code for managing complex deployment pipelines.
• Experience with cross-tenant query isolation and block compaction scheduling.

6+ years of professional experience administering  databases in production at scale.

Got any questions regarding this position? You can contact Konstantinos Adamopoulos at 6940080281, from Monday to Friday. Otherwise, feel free to contact me at kadamopoulos@randstad.gr.

We look forward to receiving your application, uploading your updated CV by clicking the 'apply now' option.

In case that your application advances to the next stage, you may be automatically invited to submit a video, answering a few interview questions.

Please note that for transparency and equity reasons, only those applications made online via our site will be assessed. After the screening of all the CVs received, we will only contact the candidates who meet the requirements of the job to arrange an interview. ​All applications are considered strictly confidential.