Remote Senior Site Leader — SRE & Infrastructure

Weekday AI; Polska; Hybrid; PLN 480,000 - 900,000; Full time

Job summary

Weekday AI is seeking a highly experienced Site Leader with a strong background in SRE and infrastructure to lead and scale our engineering operations. You will build resilient, scalable, and secure systems while guiding cross-functional teams to deliver reliable platforms.

As an Engineering Manager-level leader, you will define reliability strategy, establish SLAs/SLOs, drive automation and observability, mentor leaders, and ensure best-practice security and cost management across our

Qualifications

• 10–15 years of experience in software engineering, infrastructure, or SRE, with at least 3–5 years in an Engineering Manager or leadership role.
• Proven expertise in Site Reliability Engineering (SRE) principles, including reliability, scalability, and fault tolerance.
• Strong experience with cloud platforms such as AWS, GCP, or Azure and modern infrastructure architectures.
• Deep understanding of infrastructure as code (Terraform, CloudFormation), CI/CD pipelines, and containerization technologies (Docker, Kubernetes).
• Demonstrated ability to lead and scale distributed engineering teams.
• Strong problem-solving skills with a focus on system-level thinking and root cause analysis.
• Experience with monitoring and observability tools such as Prometheus, Grafana, ELK stack, or similar.
• Excellent stakeholder management and communication skills, with the ability to influence cross-functional teams.

Responsibilities

• Lead and manage SRE and Infrastructure teams, driving operational excellence and fostering a culture of reliability and accountability.
• Define and execute the overall infrastructure and reliability strategy aligned with business goals.
• Oversee the design, deployment, and maintenance of scalable, highly available, and secure systems.
• Establish and monitor SLAs, SLOs, and SLIs, ensuring consistent service performance and uptime.
• Drive incident management processes, including root cause analysis, postmortems, and continuous improvement initiatives.
• Collaborate with product and engineering teams to embed reliability and scalability into the development lifecycle.
• Champion automation, observability, and proactive monitoring to minimize downtime and improve system health.
• Manage infrastructure costs, capacity planning, and resource optimization.
• Mentor and develop engineering managers and senior engineers, building a strong leadership pipeline.
• Ensure adherence to best practices in cloud infrastructure, DevOps, and security compliance.

Skills

SRE leadership

Cloud platforms: AWS/GCP/Azure

IaC (Terraform/CloudFormation)

CI/CD pipelines

Containerization (Docker/Kubernetes)

Distributed teams leadership

Observability & monitoring

Stakeholder management

Security/compliance awareness

Tools

Terraform

CloudFormation

Prometheus

Grafana

ELK stack

Docker

Kubernetes

CI/CD tooling

Job description

Weekday AI is seeking a highly experienced Site Leader with a strong background in SRE and infrastructure to lead and scale our engineering operations. You will build resilient, scalable, and secure systems while guiding cross-functional teams to deliver reliable platforms.

As an Engineering Manager-level leader, you will define reliability strategy, establish SLAs/SLOs, drive automation and observability, mentor leaders, and ensure best-practice security and cost management across our