Senior Infrastructure Engineer (SRE Focus)

Our client, a new Silicon Valley-based profitable B2C product startup building innovative mobile solutions for the planet, is now looking for an experienced Infrastructure Engineer (SRE Focus) to help build reliable, scalable, and observable systems.

Location: Poland
Type: Remote, Full-time
Start date: ASAP
About project and position:

Based in Silicon Valley and backed by top-tier VCs is a new mobile innovator delivering exciting new products for consumers across the planet.
The company has a flagship VPN application with over 1B downloads, ensuring online privacy and anonymity for our users by creating a private network from a public internet connection.

We are looking for a Senior Infrastructure Engineer (SRE Focus) who combines strong hands-on experience with bare-metal systems, Linux, and automation, and brings an SRE mindset to drive reliability, observability, and continuous improvement across the global infrastructure.
Roughly 80% of your work will focus on bare-metal, networking, and automation, while the remaining 20% will involve cloud platforms (AWS, DigitalOcean) and modern observability systems.

Responsibilities:

• Deploy and manage bare-metal infrastructure provisioning, OS tuning, lifecycle management, hardware and network troubleshooting.
• Automate infrastructure operations using tools such as Ansible and Python/Go.
• Build and enhance observability across systems and services (metrics, logging, alerting, tracing) using Prometheus, Grafana, ClickHouse etc.
• Ensure system reliability and performance by defining SLIs/SLOs, developing dashboards and alerts, and leading incident response and postmortems to strengthen reliability culture.
• Define and maintain SRE policies, procedures, and best practices, ensuring consistent standards for reliability, automation, and monitoring across teams.
• Improve operational workflows contributing to Jira backlog management, ticket tracking, and sprint planning, and helping teams translate SRE priorities into actionable tasks.
• Contribute to CI/CD and GitOps workflows, ensuring reliable deployments and secure automation pipelines.
• Mentor team members and help establish technical standards for reliability, automation, and monitoring.

Requirements:

• 5+ years in infrastructure/systems engineering, with proven experience managing bare-metal and 3+ years in cloud infrastructure/SRE role.
• Good understanding of Linux systems, including performance tuning, networking, and kernel-level debugging.
• Strong knowledge of observability platforms (Grafana, Prometheus, ClickHouse, etc.) and SRE metrics (SLIs/SLOs).
• Practical experience with infrastructure automation (Ansible, Terraform, Vagrant, TestInfra or similar).
• Experience defining or improving incident response, on-call, and postmortem processes.
• Hands-on experience with cloud platforms (AWS, Google Cloud, Digital Ocean)
• Knowledge of infrastructure security (GPG, OpenSSL, Security key, HSM's.
• Experience programming with Python, Go, Rust, or similar languages including writing test cases and performing integration testing.
• English - advanced spoken and written