DevOps Engineer

Codonix D.O.O develops software products and operates the development, testing, staging, and production environments that support reliable software delivery across its platforms.

• Take ownership of planning, provisioning, operational management, and continuous improvement of development, QA, UAT, and PROD environments;
• Design, build, and maintain development environments that support efficient software delivery;
• Ensure environments are properly configured, consistently maintained, secure, and production-ready;
• Coordinate environment readiness across development teams;
• Standardize environment configurations and deployment processes across projects;
• Design, build, and maintain CI/CD pipelines;
• Ensure software releases are delivered accurately, efficiently, and on schedule;
• Automate build, test, deployment, validation, and rollback processes;
• Improve deployment reliability, release quality, and delivery speed;
• Collaborate with development teams to optimize release workflows;
• Manage and maintain on-premise infrastructure supporting development and production environments;
• Administer virtualization platforms, servers, storage, networking, and related infrastructure components;
• Implement Infrastructure as Code;
• Ensure infrastructure availability, scalability, security, and operational stability;
• Monitor infrastructure and applications using Graylog, Sentry, Grafana, and related monitoring tools;
• Configure centralized logging, metrics, alerting, and observability solutions;
• Perform root cause analysis for production incidents and implement preventive improvements;
• Ensure maximum platform availability and operational stability;
• Configure DNS, load balancers, firewalls, reverse proxies, VLANs, VPNs, and SSL certificates;
• Maintain secure API communication and infrastructure access controls;
• Implement infrastructure security best practices, backup strategies, and disaster recovery procedures;
• Work closely with the software team throughout the software delivery lifecycle;
• Support developers with infrastructure, deployment solutions, and operational guidance;
• Document infrastructure architecture, operational procedures, and technical standards;
• Participate in production support and incident response when required.

• At least 3 years of professional experience in DevOps, Infrastructure Engineering, System Administration, or Platform Engineering;
• Experience designing, planning, and operating QA, UAT, and PROD environments;
• Strong experience building and maintaining CI/CD pipelines;
• Strong experience with Docker and containerized applications;
• Experience with Infrastructure as Code;
• Strong Linux administration and troubleshooting skills;
• Solid understanding of TCP/IP, DNS, HTTP/HTTPS, SSL/TLS, VPN, reverse proxies, firewalls, and load balancing;
• Experience with Graylog, Sentry, Grafana, or similar monitoring and observability platforms;
• Experience with Redis and distributed caching technologies;
• Strong understanding of deployment strategies, release management, rollback procedures, and production operations;
• Experience troubleshooting infrastructure, APIs, and production systems;
• Strong analytical thinking and problem-solving skills;
• Ability to work effectively in a collaborative, cross-functional team environment;
• Proficiency in Bash and Shell scripting;
• Basic SQL and NO-SQL knowledge;
• Familiarity with on-premises infrastructure, physical servers, networking equipment, storage systems, and related hardware;
• Nice to have: AWS services such as EC2, ECS, Lambda, S3, Route53, IAM, Elasticache, and Load Balancers; Kubernetes or Amazon EKS; deployment strategies; configuration management tools; microservice-based architectures; Cloudflare services; GitOps practices; AWS Certification (Solutions Architect, DevOps Engineer, or SysOps Administrator).

• On-site role in Belgrade, Serbia.