CoreTech, known as FIRST. is a B2B company that provides a SaaS (software as a service) solution for online sports platforms. Our systems process more than 3 billion messages every day to provide our clients with the most accurate and consistent sports data.
We seek a seasoned Senior DevOps Engineer to enhance our hybrid infrastructure (on-premises and cloud) and streamline CI/CD pipelines. You will play a pivotal role in maintaining and scaling our infrastructure using Ansible, Terraform, Helm, Fleet, Kubernetes and Jenkins, while collaborating with IT teams responsible for physical hosts/VMs. The ideal candidate thrives in small, autonomous teams and has deep expertise in hybrid environments.
Key Responsibilities:
- Infrastructure Automation & IaC:
- Design, deploy, and manage infrastructure using Terraform (cloud) and Ansible (on-premises).
- Maintain Kubernetes clusters (deployments, Helm charts, operators) across hybrid environments.
- Ensure IaC practices are version-controlled, reusable, and modular.
- CI/CD Pipeline Management:
- Optimize ,Create and maintain Jenkins pipelines for build, test, and deployment workflows.
- Integrate security checks, testing, and monitoring into CI/CD processes.
- Cloud & On-Premises Hybrid Management:
- Manage cloud resources (GCP) and on-premises Kubernetes clusters.
- Collaborate with IT teams to ensure seamless integration with underlying infrastructure (e.g., networking, storage).
- Monitoring, Logging, and Security:
- Implement monitoring (Prometheus/Grafana), logging (ELK/GrafafaLogs), and alerting solutions.
- Enforce security best practices (RBAC, secrets management, network policies).
- Collaboration & Documentation:
- Partner with development and IT teams to resolve dependencies and optimize workflows.
- Support Delivery team while using Jenkins automation
- Document architectures, processes, and disaster recovery plans.
- Mentorship & Innovation:
- Mentor junior team members and advocate for DevOps best practices.
- Research and propose tools/process improvements (e.g., GitOps, ArgoCD).
Technical Requirements:
- Must-Have:
- 5+ years in DevOps/Infrastructure roles with hybrid (cloud + on-premises ( would consider a plus)) environments.
- Expertise in Ansible, Terraform, Helm, Kubernetes, and Jenkins .(or alternatives)
- Proficient in any scripting language and Linux administration.
- Experience with cloud providers (GCP is a plus).
- Strong understanding of networking, security, and containerization (Docker).
- Strong understanding of orchestration platforms like k8s, docker swarm etc.
- Preferred:
- Familiarity with GitOps workflows (e.g., ArgoCD, Flux,fleet).
- Knowledge of service meshes (Istio, Linkerd) and distributed systems
What we offer:
- An open-minded environment that values you
- An international multicultural team
- An amazing office environment (table tennis, play station, all the fun stuff)
- Food vouchers (180 BGN)
- Additional health insurance
- Sports card
- 21 days paid leave
- Flexible working hours\
- Manicure, barber, massage, breakfast, and snacks in the office
- Wedding and new baby bonus
- Team building activities
- Knowledge sharing sessions
If you are interested in joining our diverse and dynamic team, we are looking forward to your application. Only short-listed candidates will be contacted.
Confidentiality of all applications is assured!
In regard to GDPR 2016/679 you hereby give your consent the personal data included in the CV/resume/motivational letter to be processed for the purposes of the recruitment and hiring process in the company.