Senior Software Engineer, Browser Synthetics - ThousandEyes

541 Cisco Systems Poland sp. Z o.o.; Kraków; On-site; PLN 180,000 - 260,000; Full time

Job summary

Cisco ThousandEyes is hiring a software engineer to build secure, scalable systems for running browser-based synthetic tests across a global fleet of agents. You will design and improve services that schedule and execute customer scripts, and work with the ThousandEyes Recorder app for local test creation.

Ideal candidates have experience with Java or Go, API design, and CI/CD workflows, plus familiarity with Chromium DevTools Protocol and container runtimes.

Qualifications

• Professional software development experience using Java or Go.
• Experience designing and implementing APIs in distributed software architectures.
• Experience with Git, automated testing, and CI/CD workflows.

Responsibilities

• As a software engineer on this team, you will build secure, scalable systems for running synthetic tests across a global fleet of ThousandEyes agents.
• You will help design and improve the services that schedule and execute customer-authored transaction scripts, and the ThousandEyes Recorder application.

Skills

Java or Go

API design

Git CI/CD

Education

Bachelor's degree in CS or related

Tools

Chromium CDP

Container runtimes (runc/crun/podman)

AI coding tools (Codex/Claude)

Job description

Meet the Team

Cisco ThousandEyes is a Digital Experience Assurance platform that empowers organizations to deliver flawless digital experiences across every network - even the ones they don’t own. Powered by AI and an unmatched set of cloud, internet and enterprise network telemetry data, ThousandEyes enables IT teams to proactively detect, diagnose, and remediate issues - before they impact end- user experiences. ThousandEyes is deeply integrated across the entire Cisco technology portfolio and beyond, helping customers deploy at scale while also delivering AI-powered assurance insights within Cisco’s leading Networking, Security, Collaboration, and Observability portfolios. The Browser Synthetics Team builds the systems customers use to create and run browser-based synthetic tests. Customers write transaction scripts, which the platform executes across a fleet of ThousandEyes agents. The ThousandEyes Recorder is a standalone application that helps customers create these tests locally.

Your Impact

As a software engineer on this team, you will build secure, scalable systems for running synthetic tests across a global fleet of ThousandEyes agents. You will help design and improve the services that schedule and execute customer-authored transaction scripts, as well as the ThousandEyes Recorder application customers use to create tests locally. Your work will help enterprise customers assess the performance and reliability of their digital experiences.

Minimum Qualifications

• Professional software development experience using Java or Go.
• Experience designing and implementing APIs in distributed software architectures.
• Experience with Git, automated testing, and continuous integration and delivery workflows.

Preferred Qualifications

• Bachelor’s degree in computer science, Software Engineering, or a related field, or equivalent practical experience.
• Deep knowledge of Chromium orchestration through the Chrome DevTools Protocol (CDP).
• Familiarity with container engines such as runc, crun, or podman, and programmatic management of container lifecycles.
• Familiarity with AI-assisted development tools such as Codex or Claude.
• Strong problem-solving and communication skills, with the ability to collaborate effectively on a cross-functional team.

Why Cisco?

At Cisco, we’re revolutionizing how data and infrastructure connect and protect organizations in the AI era – and beyond. We’ve been innovating fearlessly for 40 years to create solutions that power how humans and technology work together across the physical and digital worlds. These solutions provide customers with unparalleled security, visibility, and insights across the entire digital footprint. Fueled by the depth and breadth of our technology, we experiment and create meaningful solutions. Add to that our worldwide network of doers and experts, and you’ll see that the opportunities to grow and build are limitless. We work as a team, collaborating with empathy to make really big things happen on a global scale. Because our solutions are everywhere, our impact is everywhere. We are Cisco, and our power starts with you. Cisconians power the future. We make impact as a team, innovating fast and fearlessly to create meaningful solutions on a large scale. The depth and breadth of our technology doesn't just benefit our customers – it also means limitless opportunities for us to experiment and learn. We understand the power each of our unique backgrounds bring when we work together. Because of that, we have a global network of thinkers, doers, experts, and curious creators who help one another do their life’s best work.