> Markdown version of [/jobs/ext/2796622-principal-software-engineer](https://www.wearedevelopers.com/jobs/ext/2796622-principal-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 Software Engineer - **Company:** Malwarebytes - **Location:** Álava, Spain - **Contract:** Permanent contract - **Skills:** Artificial Intelligence, Code Review, Data Structures, Software Debugging, Software Design Documents, Software Design Patterns, Git, Automation Anywhere - **Published:** September 8, 2026 - **Apply:** https://www.buscojobs.com.es/principal-software-engineer-en-alava-ID-370261992 ## About the Role Strong understanding of data structures, algorithms, and common design patterns Experience architecting projects used by millions of clients AI workflows without quality degradation Experience working with Git Experience in regular code reviews, giving and receiving professional feedback UX and user-centric mindset You have an instinct for writing tests You manage your tasks very well and do an excellent job of estimating work Excellent debugging and troubleshooting skills Excellent communication and learning skills ## Description Malwarebytes is reimagining security to safeguard devices, data, and people - no matter their location, lifestyle, or means.What began in **** with one person helping another remove a malware infection has grown into a global leader in online protection, with an all-in-one suite of cybersecurity, privacy, and identity protection solutions that empower millions of people worldwide to enjoy their digital lives, free from threats and scams.About Malwarebytes Inc.Our portfolio has grown far beyond malware removal into a full suite of award-winning cybersecurity, privacy, and identity solutions, from the free tools that have long served as a first line of defense to newer options for identity protection and personal data removal.The threat landscape keeps getting faster, stealthier, and more sophisticated, and we believe protection should be both powerful and refreshingly simple - because security that's too hard to use doesn't get used.Built and beloved by experts, we combine world-class threat research with proprietary, AI-powered processes to deliver powerful digital protection that's always by your side.Malwarebytes is looking for..What You Will Do:Develop next generation features to protect our consumersWrite amazing code, using best practices and the latest technologiesEnsure you deliver quality code by writing design documents and unit testsCollaborate with Product, UX and QA to deliver an ambitious roadmap on time and with high qualityDesign and develop key integrations between Malwarebytes' systems and productsSupport your fellow team members: mentor, proactively communicate & code reviewWork as a team to ensure everyone meets their goalsSkills You'll Need to Have:Strong understanding of data structures, algorithms, and common design patternsExperience architecting projects used by millions of clientsAI workflows without quality degradation Experience working with GitExperience in regular code reviews, giving and receiving professional feedbackUX and user-centric mindsetYou have an instinct for writing testsYou manage your tasks very well and do an excellent job of estimating workExcellent debugging and troubleshooting skillsExcellent communication and learning skillsPrivate Health Insurance - Comprehensive medical, dental, and vision insurance coverage, subject to change by country/regionWellness programsWinter break between Christmas and New Year - 4 extra days in ****A great work environment that supports growth, development, and well-beingAn opportunity to do something great for yourself and the worldShare this Job:#J-*****-Ljbffr ## Related Videos - [Your AI Ships Code Faster Than Anyone Can Review It](https://www.wearedevelopers.com/videos/100120-your-ai-ships-code-faster-than-anyone-can-review-it) - [How a Small Team Shrank a Microsoft Monorepo by 94%](https://www.wearedevelopers.com/videos/1236-how-a-small-team-shrank-a-microsoft-monorepo-by-94) - [Are Code Reviews Worth It? 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