> Markdown version of [/jobs/ext/3614111-principal-browser-software-engineer](https://www.wearedevelopers.com/jobs/ext/3614111-principal-browser-software-engineer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Principal Browser Software Engineer - **Company:** HP - **Location:** Cambridge, UK - **Contract:** Permanent contract - **Skills:** JavaScript (Programming Language), Amazon Web Services, Automation of Tests, Microsoft Azure, Bash Shell, C++ (Programming Language), Google Chrome, Cloud Computing, Software Quality, Code Review, Cyber Security, Information Systems, Continuous Integration, Data Structures, Software Debugging, Firefox, Gecko (Software), Github, Revision Control Systems, Python (Programming Language), Object-Oriented Software Development, Performance Tuning, Windows PowerShell, Software Engineering, TypeScript, Software Organization, Google Cloud, Git, Information Technology, Web Technologies, C++14 - **Published:** October 8, 2026 - **Apply:** https://www.indeed.com/viewjob?jk=0cb048dd91be397e ## About the Role We're looking for a talented software engineer with background in Browser technologies and C++ development. This is a fantastic full-time opportunity for a collaborative, hands on and experienced software developer to join a small but growing team., * Strong commercial experience developing software in modern C++ * Proficient in software design, coding, debugging, testing and performance optimisation * Experience developing software for Windows environments * Experience working with JavaScript and/or TypeScript * Experience developing browser-based applications, browser extensions or web technologies * Knowledge of Chromium and/or Firefox browser architectures and code bases * Strong understanding of object-oriented design principles, data structures and algorithms * Experience using source control systems and modern software development practices (Git, Azure DevOps, GitHub) * Experience contributing to automated testing, CI/CD pipelines and software quality initiatives * Strong analytical, troubleshooting and problem-solving skills * Excellent communication and collaboration skills * Bachelor's or Master's degree in Computer Science, Software Engineering, Information Systems or equivalent practical experience A Great Browser Software Engineer will have exposure to the following * Cybersecurity, endpoint security or secure browsing technologies * Python development for automation and test tooling * Firefox Gecko internals or Chromium browser internals * Cloud technologies and services (Azure, AWS or Google Cloud Platform) * Scripting and automation using PowerShell, Bash or similar technologies * Technical leadership, mentoring or architecture design activities ## Description HP Wolf Security is changing the future of endpoint security through delivering secure PCs with advanced hardware-enforced security features. We are growing the R&D team in Cambridge, UK and we're looking for Principal level browser software engineer to join the HP Wolf Security R&D team. You will be designing and developing our innovative security solution based on micro-virtualization and contributing to new features and products. To see what our engineering teams are working on, check out our technical blogs: https://threatresearch.ext.hp.com/blog ., * Develop and maintain core features of HP Wolf Security's secure browsing products * Design, code, debug, test and optimize software using modern C++ * Develop secure browser capabilities on Chromium-based browsers (Google Chrome, Microsoft Edge) * Develop and enhance Firefox-based secure browser functionality using JavaScript, TypeScript and Gecko technologies * Build and maintain browser extensions and web-based functionality * Develop automation, testing and validation frameworks using Python * Troubleshoot and resolve complex software defects, performance issues and security vulnerabilities * Participate in architecture and technical design discussions * Collaborate with software engineers, architects, security researchers and product teams to deliver enterprise security solutions * Perform code reviews and contribute to software quality, maintainability and engineering best practices