Middle Atlassian Cloud Administartor

L3 Senior Linux System Engineer | Cloud, Virtualization & Enterprise Systems

About ServerHub:
At ServerHub, we power businesses with high-performance cloud and hosting solutions. Our mission is to provide customers with reliable, scalable, and secure infrastructure worldwide. As an L3 Linux System Engineer, you will be at the forefront of our operations, ensuring our hosting platforms are optimized, secure, and always online.

Requirements:
✔
11+ years of hands-on Linux system administration experience in a web hosting or cloud environment.
✔
7+ years of experience in a Senior position or Level 3 Engineer role.
✔
MUST be a KVM and Livbirt expert with a minimum of 7+ yrs of experience.
✔ Expert knowledge of web hosting technologies (cPanel, Plesk, WHM, LAMP/LEMP stacks).

✔ Strong scripting ability in Perl, Bash, and Python.

✔ Experience with configuration management tools (Ansible, Puppet, Chef).

✔ Networking expertise – understanding of TCP/IP, DNS, VPN, Firewalls, Load Balancing.

✔ Familiarity with RAID, SAN, NAS, and distributed storage systems.

✔ Experience working in a 24/7 production environment with on-call duties.

✔ Ability to build and configure servers from the ground up.

✔ Certifications such as RHCE, AWS Certified SysOps Administrator, or Kubernetes (CKA) are a plus.

✔Good English Communication Skills

Job Responsibilities:
Escalation & Troubleshooting:

• Act as the final escalation point (L3) for complex server, hosting, and network-related issues.
• Diagnose and resolve critical system failures, network outages, and performance issues.

Linux Server Administration:

• Manage, optimize, and secure Linux-based hosting environments (CentOS, Ubuntu, RHEL).
• Administer and fine-tune web servers (Apache, Nginx, LiteSpeed), databases (MySQL, PostgreSQL), and caching layers (Redis, Memcached).
• Build and deploy servers from the ground up, ensuring optimal configurations for performance and security.

Automation & DevOps:

• Develop and maintain automation scripts (Bash, Python, Perl) for server provisioning and configuration management.
• Utilize Ansible, Terraform, or similar tools for automating infrastructure deployments.

Cloud & Virtualization:

• Deploy and manage KVM, OpenStack, VMware, or containerized environments (Docker, Kubernetes).
• Support cloud-based hosting solutions (AWS, Google Cloud, Azure).

Security & Compliance:

• Implement security best practices, including firewall rules, SELinux/AppArmor, IDS/IPS.
• Perform vulnerability assessments and patch management to secure customer environments.

Monitoring & Incident Response:

• Set up and manage monitoring tools like Prometheus, Grafana, Zabbix, Nagios.
• Participate in 24/7 on-call rotation for urgent system issues.

Collaboration & Mentoring:

• Work closely with NOC, DevOps, and Engineering teams to ensure smooth operations.
• Provide guidance and mentorship to L1 & L2 support engineers.

What ServerHub Offers:
🚀 A fast-paced, innovative environment in a growing cloud hosting company.

💻 Cutting-edge technologies and challenging projects.

📈 Career growth opportunities and professional development.

🎯 Paid leaves and fully remote set-up

🔹 Join ServerHub and be part of a team that keeps the internet running! Apply today!

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AT0obi1zao

(Project Owner) for the company Google Cloud Delivery team — Google Cloud Partner of the Year 2024–2026. Takes an approved, scoped, fixed-budget engagement and delivers it end to end: Low-Level Design, implementation, validation, and clean handover. Runs several engagements in parallel, facing each customer directly in a weekly meeting. Presale is owned by Customer Engineers; this role owns execution.

Seniority:
Senior / Architect — 5+ years hands-on cloud infrastructure, with deep production experience on Google Cloud specifically.

What You Will Deliver:

• AWS / Azure → GCP migrations — production platforms moved in waves with controlled cutovers (EKS→GKE, RDS→Cloud SQL, S3→Cloud Storage).
• Cloud Foundations (Landing Zones) — resource hierarchy, IAM, Organization Policies, network topology, security controls — all codified in Terraform.
• Kubernetes platforms — GKE design and deployment: private clusters, Workload Identity, Helm add-ons, ingress, Cloud Armor.
• DevOps / IaC enablement — import hand-built environments into Terraform, reusable modules, GitHub Actions with Workload Identity Federation, Argo CD.
• Engagement ownership — weekly customer meeting, board and hours current, scope protected via change management, budget deviations flagged early, handover with docs/runbooks/knowledge transfer.

Requirements:

Must-Have:

• Google Cloud, hands-on and deep (20%) — production architecture experience on GCP; not learning it on the job.
• Terraform expertise (15%) — modular reusable code, remote state, importing hand-built environments.
• Customer-facing English (15%) — runs workshops, weeklies and handovers with customer engineers and CTOs.
• Kubernetes / GKE in production (12%) — private clusters, node pools, autoscaling, RBAC, Workload Identity, Helm, ingress.
• Networking & security (12%) — VPC design, Cloud NAT/DNS/VPN, Private Service Connect, firewall policies, IAM, Org Policies, Secret Manager.
• CI/CD (10%) — GitHub Actions (or equivalent) with keyless auth to GCP, container workflows, GitOps with Argo CD or similar.
• Source-cloud fluency (8%) — working knowledge of AWS or Azure; must read the source environment being migrated.
• AI-driven working (8%) — proficient daily use of AI tools with judgment: what to accept, what to reject, and why.

Company Description
Join a growing DevOps community at Sigma Software and build hands-on experience with modern cloud infrastructure, CI/CD pipelines, automation, and Infrastructure as Code. We are looking for a Junior DevOps Engineer eager to develop technical expertise while working alongside experienced professionals on international projects.

You will become part of a top-notch DevOps team of more than 30 specialists collaborating across cloud-native platforms, enterprise systems, and scalable digital products. We as a company support continuous learning, mentoring, certification growth, and transparent career development.

This role is a great opportunity for engineers who want to strengthen their cloud and automation skills in a collaborative environment with access to Senior and Principal-level mentorship.

Job Description

• Set up, configure, test, and maintain infrastructure across development, staging, testing, and production environments
• Contribute to Infrastructure as Code implementation following established modules, conventions, and review processes
• Support CI/CD pipeline configuration, maintenance, release preparation, and deployment activities
• Investigate incidents by collecting logs and monitoring evidence, performing initial triage, and documenting resolutions
• Configure monitoring checks, alerts, and participate in backup and recovery procedures
• Follow security best practices including least-privilege access management and secure secrets handling
• Maintain infrastructure documentation, deployment instructions, architecture diagrams, and operational runbooks
• Collaborate with developers, QA engineers, security specialists, and operations teams
• Continuously improve technical skills through mentoring, certifications, and project participation

Qualifications

• 1+ years of hands-on experience with at least one public cloud platform: AWS, Azure, or GCP
• Solid understanding of Linux administration and networking fundamentals including TCP/IP, DNS, HTTP/HTTPS, services, packages, and system metrics
• Understanding of CI/CD principles and practical exposure to GitHub Actions, GitLab CI, Azure DevOps, Jenkins, or TeamCity
• Understanding of containerization concepts and practical experience with container images and runtime environments
• Scripting experience using Shell and either Python or PowerShell
• General understanding of Infrastructure as Code and configuration management tools such as Terraform and Ansible
• Understanding of SDLC processes and DevOps principles
• Basic knowledge of databases, monitoring, logging, backup, storage, and security concepts
• Understanding of authentication and authorization concepts, TLS, and secure secrets management
• Experience using AI assistants responsibly while validating outputs and maintaining data security standards
• Good communication and collaboration skills
• At least an Upper-Intermediate level of English

WILL BE A PLUS

• Experience with Kubernetes or other orchestration platforms
• Hands-on experience with Terraform or Ansible in production environments
• Experience with centralized logging and monitoring tools such as Prometheus, Grafana, ELK Stack, CloudWatch, or Datadog
• Exposure to GitOps practices
• Familiarity with AI/LLM services or vector databases in infrastructure-related scenarios
• Cloud or Linux-related certifications

Additional Information

PERSONAL PROFILE

• Strong willingness to learn and grow within a professional DevOps environment
• Proactive and ownership-oriented mindset
• Ability to collaborate effectively in cross-functional teams
• Attention to detail and structured approach to operational tasks
• Good analytical and problem-solving skills

Ambition Needs a Place to Grow.
At Playtika, we create mobile games enjoyed by millions worldwide.

Combining the scale of a public company (NASDAQ: PLTK) with the speed and ownership of a startup, we are a global leader where innovation, data, and creativity shape the future of entertainment.

Here, your ideas matter, your decisions impact products, and your growth is supported across global studios.

Bring your hunger where it belongs: at the front of the pack.
As a Data Operations Engineer you will be in charge of managing applications and data infrastructure in production, take overall responsibility for the quality of the data services that the company provides.

The technology stack is mainly: Linux, Docker, Kubernetes, Ansible, Jenkins, TeamCity, Aerospike, MariaDB, Postgresql, Vertica, Hadoop ecosystem, Single Store, ELK stack, Kafka, Git

Infrastructure: private clouds, on-premise data centers.

Responsibilities:

• Deep understanding of the company applications and IT infrastructure;
• Support existing data infrastructure;
• Participation in the creation of new infrastructure parts, documentation development, customer onboarding;
• Being a focal point for R&D teams;
• Participate in investigation process (in case of any issues/incident for specific R&D team);
• Providing solutions and support for critical IT environment;

Requirements:

• At least 3 years of practical experience in Linux administration;
• Experience with containerization and container orchestration systems (e.g. Kubernetes);
• Understanding of TCP/IP network stack;
• Good troubleshooting skills and basic application debugging;
• Understanding/experience with message queue systems (e.g. Apache Kafka);
• Acquaintance with MySQL, PostgreSQL, Aerospike (or other NoSQL solutions);

Nice to have:

• Experience with VCS (preferably Git);
• Experience with Hadoop ecosystem (HDFS, YARN, Spark, Hive);
• Experience with CI/CD systems such as Jenkins, TeamCity;
• Experience in managing systems with configuration management (Ansible);

Subject to applicable laws, we may use artificial intelligence (AI) tools to assist our recruitment teams in the hiring process, including drafting job descriptions, communication, response to applications, assessments and tests, as further described in our Candidates Privacy Notice.

By applying to this job, you acknowledge that you have read and understood our Candidates Privacy Notice, including with respect to the use of AI tools, and consent to the processing of your information as described therein.

We are an equal opportunity employer and value diversity at our company. We do not discriminate on the basis of race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status.

If you feel the above describes you perfectly - Apply now!

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