B2B Project: Senior Site Reliability Engineer (SRE)

B2B Project: Senior Site Reliability Engineer (SRE)

Hays IT Contracting is a cooperation based on B2B rules. We connect IT specialists with the most interesting technological projects on the market. For our client, delivering a production platform engineering and cloud reliability project, we are currently looking for a specialist for the position of Senior Site Reliability Engineer (SRE).

• Rate: 135 – 180 PLN/h net
• Cooperation type: B2B, via Hays Poland
• Language: English B2+

Project Description The project focuses on designing, implementing, and maintaining cloud platform infrastructure and reliability practices for production services. This is an independent, hands-on senior-level assignment covering technical delivery, production support, and services performed in alignment with the client's architecture, security, change management, and operational processes. The project is delivered in a cross-functional, multi-team and client-facing environment. Cooperation involves platform and product teams as well as engineers, architects, security, operations, QA, SRE specialists, and technical leadership.

Technology Environment

• Cloud: Google Cloud Platform (GCP), GKE, VPC, subnets, routes, firewalls, load balancers, IAM, DNS, Cloud SQL, storage, cloud networking
• Containers & orchestration: Kubernetes, Helm, Docker, container images, Dockerfiles
• Infrastructure as Code: Terraform
• Databases: PostgreSQL, MongoDB
• Automation: Go (Golang), Python, Bash
• CI/CD: GitHub Actions, Jenkins, CircleCI or equivalent tools
• Observability: Datadog, Google Cloud Operations, Prometheus, Grafana
• Additional technologies: Sentry, Pub/Sub, Temporal, Kafka, Istio, Linkerd

Scope of Services

• Design, implement, and maintain infrastructure, primarily within Google Cloud Platform.
• Maintain GKE environments and Kubernetes workloads and troubleshoot cluster-related issues.
• Configure and troubleshoot networking, IAM, DNS, databases, storage, and load balancers.
• Improve the availability, resilience, performance, capacity, and cost efficiency of production environments.
• Develop Infrastructure as Code using Terraform, including reusable modules, environment configuration, state management, and validation.
• Develop and maintain deployment configuration using Helm.
• Build and maintain CI/CD pipelines, deployment mechanisms, and rollback capabilities.
• Automate recurring operational processes using Go, Python, or Bash.
• Define and maintain SLI/SLOs, error budgets, metrics, logs, tracing, dashboards, and alerting.
• Provide production support and participate in an agreed on-call rotation.
• Handle incidents, perform root-cause analysis, define corrective actions, and maintain runbooks.
• Support capacity planning, disaster recovery planning, and recovery testing.
• Review technical changes from reliability, security, operability, and maintainability perspectives.
• Create technical documentation, infrastructure diagrams, deployment procedures, and operational runbooks.
• Share platform engineering and SRE expertise with the client's teams and support knowledge transfer.
• Cooperate with platform and product teams, engineers, architects, security specialists, and operations teams in a multi-team, client-facing environment.

Required Competencies

• Minimum 5 years of experience in SRE, platform engineering, cloud infrastructure, DevOps, or a related production-focused role.
• Strong hands-on expertise in Google Cloud Platform (GCP), including GKE, VPC, subnets, routes, firewalls, load balancers, IAM, DNS, Cloud SQL, storage, and cloud networking.
• Strong knowledge of Kubernetes, including deployments, services, ingress, jobs, RBAC, autoscaling, scheduling, resource management, and cluster networking.
• Practical expertise in Terraform, including reusable modules, environment configuration, state management, and validation.
• Experience with Helm, Docker, container images, and Dockerfiles.
• Strong knowledge of PostgreSQL and MongoDB, including query and index optimization.
• Automation and scripting capabilities using Go (Golang), Python, and Bash.
• Experience with CI/CD solutions such as GitHub Actions, Jenkins, CircleCI, or equivalent tools.
• Experience with observability solutions such as Datadog, Google Cloud Operations, Prometheus, and Grafana.
• Practical understanding of SLIs, SLOs, error budgets, alerting, incident management, and post-incident reviews.
• Strong knowledge of Linux, networking, relational databases, and non-relational databases.
• Understanding of infrastructure security practices, including least-privilege IAM, secrets management, network controls, image hygiene, and secure infrastructure configuration.
• English at B2+ level (fluent).
• Clear written and verbal communication, including the ability to explain technical risks and project status to client stakeholders.

Nice to Have

• Experience with Sentry.
• Experience with Pub/Sub, Temporal, or Kafka.
• Experience with Istio or Linkerd.
• Experience with multi-region architectures, disaster recovery, and failover testing.
• Knowledge of cloud cost analysis, rightsizing, and autoscaling.
• Certifications such as:
• Google Cloud Professional Cloud Architect
• Google Cloud Professional Cloud DevOps Engineer
• CKA
• CKAD

The cooperation is carried out between independent businesses (B2B model) and covers the performance of services within the agreed project scope. The Contractor independently organizes and manages the manner in which the services are performed, taking into account the project requirements, security obligations, and the necessary communication with the client. Any information regarding location, availability, or project meetings is provided solely for organizational purposes and shall not be construed as creating an employment relationship, employer-like supervision, or performance of work under the direction or control of the client.

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#1202572 - Aleksandra Knapik