CrawlJobs Logo

Senior Linux Admin

Poland Employment contract, B2B 150.00 - 170.00 PLN / Hour · Job Posted January 26, 2026
Apply Position
Job Link Share

Job Description

We are seeking a Senior Linux Admin to support mission‑critical initiatives within a large‑scale ecosystem for a leading global cloud provider. In this role, you will work closely with internal engineers and cross‑functional teams to deliver reliable, high‑quality outcomes in a fast‑moving, highly distributed cloud environment.

Job Responsibility

  • Deliver hands‑on contributions across software development, testing, operations, compliance, migration, or documentation initiatives
  • Support KTLO (Keep the Lights On) activities, including ticket resolution, incident follow‑up, and remediation of long‑tail issues
  • Implement scoped feature enhancements, fixes, migrations, and deprecations
  • Contribute to regression testing, automation development, CI improvements, and quality gates
  • Work within proprietary internal tooling (e.g., monorepo‑based development systems, issue‑tracking platforms, automation frameworks, and operational dashboards)
  • Collaborate with distributed teams across US, EMEA, and APAC time zones
  • Follow strict security, access, and compliance processes
  • Maintain clear documentation, runbooks, and stream‑specific artifacts
  • Participate in planning, reviews, and execution check‑ins led

Requirements

  • Experience working in large‑scale production environments
  • Strong problem‑solving skills and ability to operate effectively with partial or evolving requirements
  • Ability to ramp up quickly in new technical or product domains
  • Prior experience working within monorepo‑based development systems
  • Familiarity with cloud compute platforms and related services
  • 5+ years of backend experience
  • Strong experience with Linux systems administration in large‑scale production environments
  • Solid understanding of cloud platform architecture and compute‑related services
  • Experience managing or contributing to large‑scale technical programs
  • Familiarity with monorepo workflows, CI/CD systems, and large‑scale development practices
  • Proficiency with internal execution and tracking tools (e.g., issue trackers, workflow orchestration tools, internal dashboards)
  • Ability to manage migrations, deprecations, and cross‑team technical dependencies
  • Must possess a legal work permit in Poland

What we offer

  • Hybrid work model combining office & remote work
  • Attractively located office with collaboration spaces
  • Onsite parking space for employees
  • Referral program with financial bonus
  • Life Insurance
  • Budget for development (including language courses and others), clear career path with the possibility to gain experience in international environment
  • Access to internal Learning Platform with multiple trainings oriented for professional growth
  • Access to MyBenefit platform (Multisport included)
  • Team Building activities
  • Charity initiatives
  • Working environment promoting diversity and inclusion
  • Private medical care - Platinum Package

Looking for more opportunities?

Search for other job offers that match your skills and interests.

Similar Jobs for

Senior Linux Admin

8 matching positions

It Infrastructure Analyst - Linux Admin

The Applications Development Senior Programmer Analyst is an intermediate level ...
Location
Location
India , Pune
Salary
Salary:
Not provided
https://www.citi.com/ Logo
Citi
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • 8-12 years of relevant experience
  • Should have solid Linux knowledge, Python and working knowledge of SNOW and Git Hub
  • Jira API :- API is being written to access Jira tickets automatically through code. Its being modified in python FastAPI.
  • VTMs API :- API being written to provide details regarding VA/VSR details which are being used in many other automation process
  • Experience in systems analysis and programming of software applications
  • Experience in managing and implementing successful projects
  • Working knowledge of consulting/project management techniques/methods
  • Ability to work under pressure and manage deadlines or unexpected changes in expectations or requirements
  • Bachelor’s degree/University degree or equivalent experience
Job Responsibility
Job Responsibility
  • Conduct tasks related to feasibility studies, time and cost estimates, IT planning, risk technology, applications development, model development, and establish and implement new or revised applications systems and programs to meet specific business needs or user areas
  • Monitor and control all phases of development process and analysis, design, construction, testing, and implementation as well as provide user and operational support on applications to business users
  • Utilize in-depth specialty knowledge of applications development to analyze complex problems/issues, provide evaluation of business process, system process, and industry standards, and make evaluative judgement
  • Recommend and develop security measures in post implementation analysis of business usage to ensure successful system design and functionality
  • Consult with users/clients and other technology groups on issues, recommend advanced programming solutions, and install and assist customer exposure systems
  • Ensure essential procedures are followed and help define operating standards and processes
  • Serve as advisor or coach to new or lower level analysts
  • Has the ability to operate with a limited level of direct supervision.
  • Can exercise independence of judgement and autonomy.
  • Acts as SME to senior stakeholders and /or other team members.
  • Fulltime
Read More
Arrow Right

Teamcenter Senior Admin

Must have Teamcenter Admin Experience covering below aspects
Location
Location
United States , Cincinnati, OH & Detroit, MI
Salary
Salary:
140000.00 USD / Year
realign-llc.com Logo
Realign
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • Teamcenter installation and configuration covering 2-tier, 4tier, BMIDE, SSO, SSL and Active Workspace configuration
  • Hands on experience of managing Teamcenter environments on Linux and Windows
  • Installation / Configuration of CAD integrations
  • Installation/ Configuration of Dispatchers
  • Installation/ Configuration of Teamcenter Active Workspace and all its components
  • Teamcenter Upgrade experience
  • Deployment of Teamcenter on IaaS cloud model
  • Knowledge of Teamcenter Deployment Center
  • Experience with scripting languages like Shell/Perl/python/TCL for Tc admin activities
Job Responsibility
Job Responsibility
  • Install and configure Teamcenter and its integrations in the cloud environment according to the migration plan
  • Install and configure Teamcenter components in the cloud environment according to the Upgrade Plan
  • Execute the Teamcenter upgrade process, including applying patches, hotfixes, and performing major version upgrades
  • Support the bulk migration of data from the on-premises system to the cloud, ensuring data integrity throughout the process
  • Thoroughly test all deployed solutions, including workflows, configurations, and integrations, to ensure they function as expected
  • Proposing solutions and fixing issues raised in Teamcenter cloud migration and Teamcenter upgrade
  • Diagnose and resolve system errors, performance issues, and data integrity anomalies in the cloud, using application logs and other tools
  • Continuously monitor application and database performance in the cloud and optimize configurations for efficiency
  • Maintain up-to-date documentation for the new cloud environment, including processes, procedures, and configurations
  • Act as a key liaison, coordinating with Siemens support (GTAC), other IT teams (network, database), and product owners to resolve issues and meet project objectives
  • Fulltime
Read More
Arrow Right

Teamcenter Senior Admin

Must have Teamcenter Admin Experience covering below aspects
Location
Location
United States , Cincinnati, OH & Detroit, MI
Salary
Salary:
140000.00 USD / Year
realign-llc.com Logo
Realign
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • Teamcenter installation and configuration covering 2-tier, 4tier, BMIDE, SSO, SSL and Active Workspace configuration
  • Hands on experience of managing Teamcenter environments on Linux and Windows
  • Installation / Configuration of CAD integrations
  • Installation/ Configuration of Dispatchers
  • Installation/ Configuration of Teamcenter Active Workspace and all its components
  • Teamcenter Upgrade experience
  • Deployment of Teamcenter on IaaS cloud model
  • Knowledge of Teamcenter Deployment Center
  • Experience with scripting languages like Shell/Perl/python/TCL for Tc admin activities
Job Responsibility
Job Responsibility
  • Install and configure Teamcenter and its integrations in the cloud environment according to the migration plan
  • Install and configure Teamcenter components in the cloud environment according to the Upgrade Plan
  • Execute the Teamcenter upgrade process, including applying patches, hotfixes, and performing major version upgrades
  • Support the bulk migration of data from the on-premises system to the cloud, ensuring data integrity throughout the process
  • Thoroughly test all deployed solutions, including workflows, configurations, and integrations, to ensure they function as expected
  • Proposing solutions and fixing issues raised in Teamcenter cloud migration and Teamcenter upgrade
  • Diagnose and resolve system errors, performance issues, and data integrity anomalies in the cloud, using application logs and other tools
  • Continuously monitor application and database performance in the cloud and optimize configurations for efficiency
  • Maintain up-to-date documentation for the new cloud environment, including processes, procedures, and configurations
  • Act as a key liaison, coordinating with Siemens support (GTAC), other IT teams (network, database), and product owners to resolve issues and meet project objectives
  • Fulltime
Read More
Arrow Right

Unix - Senior Cloud - Digital Engineering Sr. Staff Engineer

Location
Location
India , Noida
Salary
Salary:
Not provided
nttdata.com Logo
NTT DATA
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • Should have a minimum of 8 to 10 years of experience as a Linux/Unix System Administrator. Should have expertise on at least 2 flavors of Unix. Linux is a must!
  • Should have a deep level of understanding of Linux OS & should be able to handle day to day admin tasks.
  • Should be well versed shell scripting.
  • Expert in Unix-Linux, AWS Cloud Administration, OS/server administration, patching, maintenance, and troubleshooting.
  • Proficient in operating and troubleshooting AWS services like EC2, networking, RDS, backups, storage (EBS, EFS, S3, Glacier), and security (Well-Architected framework).
  • Possesses a strong understanding of networking concepts for configuring secure VPCs, subnets, landing zones, ACLs, and security groups.
  • Experience in end-to-end cloud migrations, including strategy, assessment, design, architecture, and execution on AWS.
  • Skilled in identifying and migrating suitable applications and workloads, gathering migration requirements, and collaborating with stakeholders.
  • Good knowledge of various AWS services like Lambda, SNS, SQS, DynamoDB, OpenSearch, Transfer Family, CloudWatch, EC2, EFS, EKS, Step Functions, ELB, ACM, Directory Services, and networking.
  • Hands-on expertise in designing, architecting, deploying, and supporting hybrid cloud environments.
Job Responsibility
Job Responsibility
  • Perform installation, customization and maintenance of the UNIX-LINUX Server operating system and system software products in support of business processing requirements for both On-premise and Cloud environment
  • Evaluate and integrate new operating system versions, drivers and hardware.
  • Provides in-depth diagnosis for operating systems software/hardware failures and develops solutions.
  • Monitors and tunes the system to achieve optimum performance levels in standalone and multi-tiered environments.
  • Conducts system analysis, configuration management and develops improvements for system software performance, availability and reliability.
  • Implements appropriate levels of system security. Maintain security patching and remediating vulnerabilities, propose solutions for the same.
  • Perform incident resolution, problem determination and root cause analysis in accordance with service level. Knowledge of ITIL.
  • Recommend and implement modifications to the server environment, Innovation, Ideas to improve
  • Preparation of Standard Documents and periodically review them for modifications
  • Identifies opportunities for process and procedure enhancements to drive efficiency and customer service levels.
  • Fulltime
Read More
Arrow Right

Senior Devops Engineer- Assistant Vice President

Join a world-class technology team at the heart of global finance. The Global Cu...
Location
Location
India , Pune
Salary
Salary:
Not provided
https://www.citi.com/ Logo
Citi
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • Deep, practical experience with Docker and Kubernetes for deploying and managing enterprise-scale applications
  • Hands-on proficiency with tools like Terraform or Ansible
  • Proven experience designing and maintaining sophisticated CI/CD pipelines using tools like Jenkins or TeamCity
  • Strong experience with monitoring and logging stacks such as Prometheus, Grafana, or ELK to ensure system health and performance
  • Solid understanding of cloud-native architecture and experience deploying applications on platforms like OpenShift, AWS, Azure, or GCP
  • Proficiency in Java (especially with frameworks like Spring Boot) and/or Python
  • Hands-on experience with the configuration, administration, and troubleshooting of messaging technologies such as IBM MQ, RabbitMQ, or Apache Kafka
  • Strong background in administering IBM WebSphere Application Server (WAS), including clustering and admin scripting
  • Experience with relational and/or NoSQL databases (e.g., Oracle, PostgreSQL, MongoDB)
  • Strong background in Linux/Unix administration and shell scripting
Job Responsibility
Job Responsibility
  • Design, implement, and manage robust, scalable, and secure application systems in coordination with the global technology team
  • Develop and maintain resilient CI/CD pipelines to automate builds, testing, and deployments, ensuring rapid and reliable delivery
  • Automate infrastructure provisioning and configuration management using Infrastructure as Code (IaC) principles and tools
  • Architect and manage containerized applications using Docker and Kubernetes on private and public cloud platforms (OpenShift, AWS, Azure, GCP)
  • Implement and refine observability strategies using industry-standard monitoring, logging, and tracing tools (e.g., Prometheus, Grafana, ELK)
  • Analyze and tune application performance, troubleshoot complex issues in distributed systems, and ensure high availability in an always-on service environment
  • Collaborate with cross-functional teams to integrate security best practices throughout the development lifecycle (DevSecOps)
  • Fulltime
Read More
Arrow Right

Senior Cybersecurity Analyst – CMMC & DoD Compliance

The Cybersecurity Analyst will help lead the CMMC compliance efforts to enable p...
Location
Location
United States , Austin, Texas; Warren, Michigan
Salary
Salary:
Not provided
gm.com Logo
General Motors
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • Bachelor’s degree in Cybersecurity, Information Systems, Computer Science, or equivalent practical experience
  • 5+ years of cybersecurity experience in regulated or government‑contract environments
  • Experience supporting federally regulated cybersecurity requirements
  • Experience preparing for third‑party or government assessments
  • Ability to translate and communicate DoD cybersecurity requirements for application teams
  • Knowledge in the following areas: Identity & Access Management (IAM): RBAC, least privilege, privileged access workflows, MFA, service accounts, access reviews, joiner/mover/leaver processes
  • Windows & Linux security: GPO/Intune or equivalent, local admin controls, secure baselines (e.g., CIS-aligned), logging configuration, patch management, hardening validation
  • Network security: segmentation concepts, firewall rulesets, VPN/ZTNA, secure remote administration, network device logging, NAC fundamentals, DNS security basics
  • Endpoint security: EDR capabilities, alert triage/validation, policy enforcement, device encryption, removable media controls
  • Vulnerability management: scan coverage, risk-based prioritization, remediation workflows, exception handling, validation reporting
Job Responsibility
Job Responsibility
  • Drive the overall governance for government programs
  • Execute annual self-assessments (Continuous Monitoring) on CMMC/NIST controls and document findings
  • Coordinate internal teams (IAM, cloud, infrastructure, SOC, endpoint, vulnerability management, application owners) to validate control implementation and operational effectiveness
  • Identify compliance gaps, manage security exceptions (POA&Ms), and drive remediation prior to audit or customer assessments
  • Lead CMMC readiness and sustainment activities for GM Defense programs, aligned to NIST SP 800‑171 and DoD expectations for CUI protection
  • Build and maintain assessment‑ready evidence packages (policies, procedures, configurations, logs, tickets, reports) aligned to CMMC and DFARS requirements
What we offer
What we offer
  • This job may be eligible for relocation benefits
  • Fulltime
Read More
Arrow Right

Senior Information Security Analyst

We are seeking a highly skilled and technically strong (Senior) Information Secu...
Location
Location
Germany , Munich; Berlin
Salary
Salary:
Not provided
hawk.ai Logo
Hawk
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • 5+ years of hands-on experience in Information Security, IT Security, or System Administration within a B2B tech or SaaS environment
  • Strong technical competence across multiple operating systems (macOS, Windows, Linux) including admin-level experience
  • Experience with identity and access management tools (e.g., JumpCloud, Okta), MDM solutions, and enterprise security platforms
  • Solid understanding of IT security fundamentals, including authentication, endpoint security, encryption, and network basics
  • Familiarity with ISO 27001 or ISMS operations
  • experience supporting audits or certification maintenance
  • Basic security certifications (e.g., CompTIA Security+, CEH) are highly desirable
  • Fluent German and English — mandatory due to regular customer-facing security discussions
  • Ability to articulate complex technical issues clearly to diverse audiences (engineers, customers, auditors, leadership)
  • Strong documentation skills with attention to accuracy and clarity
Job Responsibility
Job Responsibility
  • Respond to security questionnaires, RFPs, and due-diligence requests in collaboration with Sales and Pre-Sales
  • Participate in customer calls to explain Hawk’s security posture and answer technical, compliance, and infrastructure-related questions
  • Represent Hawk’s security capabilities clearly and confidently to regulated financial institutions
  • Support the ongoing operation and improvement of Hawk’s ISMS, ensuring alignment with ISO 27001 controls and underlying processes
  • Assist in internal audits, evidence gathering, and risk assessments
  • Help maintain certification readiness by driving documentation, process adherence, and corrective actions
  • Provide operational support for core IT & security tools, including JumpCloud (SSO/IdP), MDM, endpoint policies, and access management workflows
  • Support the roadmap toward centralized, secure workstation management — monitoring, controlling, and updating all endpoints across macOS, Windows, and Linux
  • Assist in evaluating and managing security-related 3rd party SaaS tools used across the business
  • Monitor the security posture of Hawk’s corporate tools, infrastructure, and integrations
  • Fulltime
Read More
Arrow Right

OpenText Exstream Developer

This role is responsible for the development, installation, and maintenance of o...
Location
Location
India , Pune
Salary
Salary:
Not provided
cencora.com Logo
Cencora
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • 4+ years of hands‑on experience in OpenText Exstream 23.x / 24.x / 25.x (CloudNative)
  • Strong experience with XML, Print Miner, columnar and delimited data inputs
  • Expertise in batch and real‑time application design
  • Skilled in creating automated and complex table structures
  • Experience working with barcodes and inserter configurations
  • Proficient in generating outputs: PS, PDF, AFP, Empower, multi‑channel delivery
  • Deep knowledge of rules, formula variables, control files, document/pages setup, design layers, language layers
  • Hands‑on experience with two‑pass application design
  • Knowledge of orchestration workflows
  • Proficient in sorting, bundling, and post‑processing (AFP/PDF)
Job Responsibility
Job Responsibility
  • Develop OpenText Exstream applications
  • Design, implement, unit test, document, and deploy applications/APIs
  • Develop database solutions using SSIS, T‑SQL, and stored procedures
  • Collaborate with business teams to define logical designs aligned with data architecture
  • Perform code reviews, analyze execution plans, and optimize/re-factor code
  • Provide technical guidance to junior software engineers
  • Follow data standards, resolve data issues, perform unit testing, and document ETL processes
  • Assist managers with project documentation, progress tracking, and test plan creation
  • Work with business analysts and source system experts on data extraction & transformation requirements
  • Coordinate with IT operations and testing teams for timely, sustainable releases
  • Fulltime
Read More
Arrow Right