RO - 5G DevOps Engineer
ZaiNar — Romania
- Location
- Romania
Responsibilities
As a Senior 5G DevOps Engineer at ZaiNar, you will own the internal development platform that powers our 5G engineering team, building and operating the CI/CD, automation, and monitoring infrastructure that lets the team move fast and ship reliably. You will work hands-on across Kubernetes cluster build-out, GitLab pipelines, infrastructure-as-code, and Grafana observability. This is a hands-on builder role for someone energized by owning a platform end-to-end in a fast-paced startup environment.
JOB RESPONSIBILITIES
5G Development Platform
Manage and scale the 5G development platform that supports ZaiNar's 5G engineering team.
Prepare the 5G solution for commercial deployment through packaging, monitoring, and supportability work that takes the product from engineering-ready to market-ready.
Kubernetes & OpenShift Infrastructure
Build production Kubernetes and OpenShift clusters from scratch across cloud, edge, and on-prem environments, owning the full lifecycle from initial deployment through upgrades, scaling, and security hardening.
Operate and troubleshoot the clusters that run the 5G platform, supporting workload deployment in partnership with the 5G engineering team.
CI/CD & Automation
Build and maintain CI/CD pipelines in GitLab to ensure build consistency, automated linting, testing, and versioned artifact creation.
Maintain the health and capacity of GitLab runners across the 5G build environment.
Deploy infrastructure-as-code using GitLab, Terraform, and Jenkins, including integrations across all three for repeatable environment provisioning.
Integrate quality gates into pipelines using SonarScanner, Pytest, and other linting tools to maintain code quality standards.
Monitoring & Alerting
Build and operate Grafana-based monitoring and alerting tailored to the 5G platform, covering platform health, deployment state, and test environments.
5G Team Support
Requirements
MUST HAVE ATTRIBUTES/SKILLS
5+ years of experience in DevOps, SRE, or platform engineering roles building developer-facing CI/CD and infrastructure systems.
Hands-on experience building production Kubernetes clusters from scratch (greenfield), creating deployments from zero rather than maintaining or extending systems built by others.
Deep hands-on experience with CI/CD, including pipeline design, runner operations, and integration with other build and deployment tools (GitLab preferred).
Proficiency with infrastructure-as-code, including integration with CI/CD systems.
Working experience with code quality and static analysis tooling such as SonarScanner, Pytest, and standard linting frameworks.
Strong Linux/Unix system administration and scripting skills.
Experience with edge environments.
Experience building and operating monitoring and alerting in production environments (Grafana preferred).
SHOULD HAVE ATTRIBUTES/SKILLS
Experience with cloud platforms (AWS preferred) and hybrid environments.
Hands-on experience with Jenkins for build and deployment automation.
Proficiency creating, customizing, and managing Helm charts, Kubernetes Operators, and CRDs.
Hands-on Go programming experience, including developing Kubernetes Operators with the Operator Framework and working directly with the Kubernetes API.
Prior experience in an early-stage or high-growth startup environment.
NICE TO HAVE ATTRIBUTES/SKILLS
Hands-on OpenShift experience.
Familiarity with the 5G or LTE software stack at a working level (5G Core, RAN, or network functions).
Experience supporting 5G, LTE, or cellular engineering teams, or other domain teams working on integrated hardware-software systems.
Experience operating in a regulated or compliance-sensitive engineering environment.
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