CI/CD Engineer (Jenkins, Linux, Secure Platforms)

Bytamic is an international IT services and Consulting company with its headquarters in Vienna, Austria and subsidiary companies in Warsaw and Poznan. We work with multinational companies and we drive digital transformation for our clients. We are truly agile, work with the latest technologies and our engineers and scrum-teams deliver state-of-the-art product development services for our clients. Delivering with highest quality standards is key to us – therefore we focus on continuous training & education of our engineers. 

Client's description

Global leader in communication and information solutions for safety-critical environments, with over 75 years of innovation and excellence. Operating across sectors such as civil aviation, defense, public safety, maritime, and public transportation, the company delivers cutting-edge solutions tailored to user needs worldwide.

Role Overview

We are seeking a skilled CI/CD Engineer with strong experience in Jenkins-based pipeline design, a solid Linux systems background, and a strong understanding of network and security concepts. The engineer will collaborate with cross-functional teams to design, implement, and maintain a secure, enterprise-grade CI/CD solution, aligned with the proposed architecture, integrating source control, artifact management, automated testing, security controls, and deployment workflows.

This role is hands-on and requires both engineering execution and collaborative problem-solving across infrastructure, networking, security, and application teams.

Your responsibilities would be to:

• Design, build, and maintain CI/CD pipelines using Jenkins for multiple environments (dev, test, staging, production).

• Collaborate with platform, network, security, and application teams to implement the target CI/CD architecture, including:

  • Secure Jenkins controllers and agents

  • Integration with Git-based source control systems

  • Artifact management using JFrog Artifactory

  • Containerized build and delivery workflows using Podman

• Implement pipeline-as-code using Jenkinsfiles and shared libraries.

• Enhance and maintain CIS Level 1 (CIS1) hardening across CI/CD building blocks, including:

  • RHEL-based systems

  • KVM virtualization environments

• Manage and troubleshoot Linux-based build and runtime environments, including system configuration, patching, performance tuning, and security hardening.

• Integrate CI/CD workflows with:

  • Issue tracking systems (e.g., Jira)

  • Artifact promotion and versioning processes

  • Monitoring and security tooling

• Apply networking best practices within CI/CD and platform environments, including:

  • VLANs, routing, and firewall rules

  • Proxies and DMZ-based architectures

  • Secure service-to-service communication

• Implement access controls, secrets management, and network segmentation aligned with enterprise security policies.

• Support regression testing, quality gates, and approval workflows prior to deployment.

• Monitor pipeline health, improve reliability, and optimize build performance.

• Produce and maintain technical documentation, operational procedures, and compliance evidence.

What you need

• 3+ years of hands-on experience with Jenkins in production environments.

• Strong understanding of CI/CD and DevOps best practices

• Bachelor’s degree in Computer Science, Engineering, or equivalent experience

• Proven experience implementing or enhancing CIS Level 1 (CIS1) benchmarks on:

  • Red Hat Enterprise Linux (RHEL)

  • KVM-based infrastructure

  • Databases

• Good experience working with Linux systems:

  • Bash/shell scripting

  • Services, logging, and troubleshooting

• Hands-on experience with:

  • Podman for container build and execution

  • JFrog Artifactory for artifact storage, dependency management, and promotion

• Good understanding of network concepts, including:

  • TCP/IP, DNS, and routing

  • Firewalls, proxies, and load balancing

  • Segmented networks (VLANs, DMZs)

Nice-to-Have:

• Experience in enterprise, regulated, or security-sensitive environments.

• Knowledge or hands-on experience with security monitoring and hardening tools, including:

  • Wazuh (SIEM / HIDS)

  • Zabbix, preferably hardened according to CIS1 guidelines

• Familiarity with:

  • Infrastructure as Code (Ansible, Terraform)

  • Secure container and virtualization platforms

• Experience supporting multi-zone or air-gapped CI/CD architectures.

• Understanding of compliance, audit readiness, and security governance.

What you can expect from us:

• Working with latest technologies 

• Lots of career development potentials (career-planning) 

• Challenging projects (mostly product/feature development) 

• International software development teams with distributed delivery groups 

• Private healthcare and Multisport card at employment of contract or reimbursement for it at B2B contract

• Training & education 

• Attractive remuneration 

• Language classes (usually business English; but not limited to) 

• Modern computer equipment

• Employee referral programme 

• Integrational meetings & events 

If you think that this job offer can be for you, we would like to hear from you:)

#linux #cicd #jenkins #english #itjobs #poland