Principal Browser Software Engineer

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

Requirements for the Browser Software Engineer

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

Location & working model

This role is based in HP’s Cambridge office under a hybrid working arrangement, with a minimum requirement to be onsite three days per week. As a people‑focused senior role, regular in‑person collaboration is encouraged.

HP has invested in a new, modern site, including ergonomic workspaces and well stocked kitchen facilities that included a wide selection of coffee.

About you:

You’re out to reimagine and reinvent what’s possible- in your career as well as the world around you. So are we. We love taking on tough challenges, disrupting the status quo, and creating what’s next. We’re in search of talented people who are inspired by big challenges, driven to learn and grow, and dedicated to making a meaningful difference.

Why join HP Wolf Security

HP Wolf Security is central to HP’s strategy in the PC market, with security designed into hardware, firmware, and software. This integrated approach enables HP to differentiate through built‑in, enterprise‑grade protection and manageability. This role sits at the heart of that strategy, helping deliver the tools that allow customers to deploy, manage, and trust secure PCs at scale.

The primary focus of the HP Wolf Security team is developing cyber security solutions to protect our customers devices and data. The digital threat landscape is ever-changing and as the cyber security industry reacts and adapts to changes, so too do the malware authors. Our unique micro-virtualization technology ensures that customers are protected from even the most bleeding edge cyber security threats. That micro-virtualization technology forms a key pillar in a wider cyber security suite that we're actively developing.

For more information, visit our website: https://www.hp.com/uk-en/security/endpoint-security-solutions.html

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Job -

Software

Schedule -

Full time

Shift -

No shift premium (United Kingdom)

Travel -

Relocation -

Equal Opportunity Employer (EEO) -

HP, Inc. provides equal employment opportunity to all employees and prospective employees, without regard to race, color, religion, sex, national origin, ancestry, citizenship, sexual orientation, age, disability, or status as a protected veteran, marital status, familial status, physical or mental disability, medical condition, pregnancy, genetic predisposition or carrier status, uniformed service status, political affiliation or any other characteristic protected by applicable national, federal, state, and local law(s).

Please be assured that you will not be subject to any adverse treatment if you choose to disclose the information requested. This information is provided voluntarily. The information obtained will be kept in strict confidence.

For more information, review HP’sEEO Policy or read about your rights as an applicant under the law here: “Know Your Rights: Workplace Discrimination is Illegal"