Senior Software Engineer Distributed Systems & Device Fleet

Sauce Labs, Inc.; Warszawa; Hybrid; PLN 180,000 - 300,000; Full time

Job summary

Sauce Labs, Inc. in Warsaw is seeking a Senior Software Engineer to join the Virtual Device Cloud team. You will help design and operate the infrastructure that hosts remote devices at scale for automated testing across macOS, iOS, Windows and Linux environments.

Join a team that values testing discipline, cross-team collaboration, and strong observability to raise delivery cadence, correctness, and visibility across the fleet.

Qualifications

• Design, build, and operate distributed systems in production.
• Hands-on Kubernetes experience; fleet orchestration like Agones.
• Ship production code in Go or Python through CI/CD deployment paths.
• Strong observability instincts: metrics, logs, traces.
• DevOps and Linux/Unix experience; diagnose and fix on real machines.
• Delivers through the team: shipping via review and pairing.

Responsibilities

• Lead by example to set testing, observability and delivery standards.
• Own the device lifecycle - design and build services across the lifecycle.
• Automate build and release with CI/CD pipelines in Go or Python.
• Make the fleet observable with tooling for end-to-end visibility.
• Fix lifecycle regressions with tests and automated release checks.
• Improve boot, readiness and teardown times and optimize footprint.

Skills

Distributed systems

Kubernetes

Go/Python

Observability

DevOps/Linux

Team delivery

Tools

Packer

tart

Ansible

cloud-init

Job description

Sauce Labs, Inc. in Warsaw is seeking a Senior Software Engineer to join the Virtual Device Cloud team. You will help design and operate the infrastructure that hosts remote devices at scale for automated testing across macOS, iOS, Windows and Linux environments.

Join a team that values testing discipline, cross-team collaboration, and strong observability to raise delivery cadence, correctness, and visibility across the fleet.