Senior DevOps/SRE Engineer

Team: SRE - DevOps

Location: Warsaw, Mazowieckie, Poland, Limassol, Cyprus, Sofia City, Bulgaria

Commitment: Remote

Workplace Type: remote

Responsibilities:

• Design, deploy, and maintain scalable cloud infrastructure on AWS, ensuring high availability, performance, and security across all environments.
• Own and evolve Kubernetes cluster management — including bare-metal deployments — and ensure reliable containerised workloads using Docker and Helm.
• Build and maintain CI/CD pipelines using GitLab CI, incorporating GitOps principles with FluxCD or ArgoCD to streamline and automate delivery workflows.
• Define and manage Infrastructure as Code using Terraform, ensuring all infrastructure changes are version-controlled, repeatable, and reviewed.
• Lead monitoring and observability initiatives: implement and maintain dashboards, alerting, and log pipelines using VictoriaMetrics/Prometheus, Grafana, and the ELK stack.
• Operate and optimize Apache Kafka ecosystems, including Strimzi, Kafka Connect, and MirrorMaker, to support real-time data pipelines.
• Drive incident response, root cause analysis, and post-mortem culture to continuously improve system reliability.
• Collaborate closely with Engineering, Security, and Product teams to embed DevOps best practices across the organisation.
• Mentor and guide junior engineers, raising the overall engineering bar for infrastructure reliability and automation.

Requirements:

• 6+ years of hands-on experience in a DevOps or SRE role.
• Strong knowledge of AWS services, including: VPC, EC2, EKS, S3, ECR, EBS, RDS, ElastiCache, IAM, KMS, Secrets Manager, SSM Parameter Store, CloudWatch, MSK, SNS, SQS, Route 53, Direct Connect, Transit Gateway, and ELB/ALB/NLB.
• Solid Linux administration skills with deep understanding of system internals.
• Deep expertise in Kubernetes, including bare-metal cluster deployment and day-2 operations. Proficiency with Docker and Helm.
• Hands-on experience with Terraform as a primary Infrastructure as Code tool — writing, reviewing, and maintaining production-grade modules.
• Proven experience with GitLab CI for building and maintaining CI/CD pipelines; familiarity with GitOps practices using FluxCD or ArgoCD.
• Strong background in monitoring and observability: VictoriaMetrics or Prometheus, Grafana, and the ELK stack; solid understanding of log collection and processing with Fluentbit, Fluentd, and Logstash.
• Experience operating and managing Apache Kafka ecosystems, including Strimzi, Kafka Connect, and MirrorMaker.
• Experience with Ansible for configuration management; experience with AWX is a plus.
• Proficiency in scripting and automation with Bash, Python, and Go.
• Strong communication skills and the ability to collaborate cross-functionally in a fast-paced, regulated environment.
• English language proficiency.