Software Engineer III, Monolith

Company: Box
Company: Box
Department: Cloud Engineering - R&D
Posted on: 2026-01-31 01:09
New Software Engineer III, Monolith Warsaw, Poland Apply WHAT IS BOX? Box (NYSE:BOX) is the leader in Intelligent Content Management. Our platform enables organizations to fuel collaboration, manage the entire content lifecycle, secure critical content, and transform business workflows with enterprise AI. We help companies thrive in the new AI-first era of business. Founded in 2005, Box simplifies work for leading global organizations, including JLL, Morgan Stanley, and Nationwide. Box is headquartered in Redwood City, CA, with offices across the United States, Europe, and Asia. By joining Box, you will have the unique opportunity to continue driving our platform forward. Content powers how we work. It’s the billions of files and information flowing across teams, departments, and key business processes every single day: contracts, invoices, employee records, financials, product specs, marketing assets, and more. Our mission is to bring intelligence to the world of content management and empower our customers to completely transform workflows across their organizations. With the combination of AI and enterprise content, the opportunity has never been greater to transform how the world works together and at Box you will be on the front lines of this massive shift. We are an AI-first company. This means you approach your work with a growth mindset and find ways to leverage AI to help make faster, smarter decisions that will 10X your impact at Box. WHY BOX NEEDS YOU? Box is transforming how enterprises collaborate and manage content in the cloud. While many Box services run on Java and Scala microservices, a large monolithic PHP codebase still implements core business logic. That codebase contains millions of lines, is contributed to by hundreds of engineers, and is deployed to production multiple times per day. It’s the largest-scale service in the company and is relied on by thousands of customers — we need a software engineer to own, enhance, and maintain it. Team mission: Empower innovation and scalability across Box’s ecosystem by developing modern language frameworks and building highly scalable, reliable infrastructure services. WHAT YOU'LL DO? Maintain existing Monolith infrastructure, development and delivery pipelines Design and migrate features from a monolith PHP codebase to microservices in Java and Scala Participate in on-call and incident response Work collaboratively with other engineers within the team and at Box in general Represent Box Poland internally and externally WHO YOU ARE? 4+ years of professional software development experience Proficiency in PHP and at least one other programming language (e.g. Java, C++, Python) Strong understanding of basic software design principles and patterns Solid grasp of at least one modern source code management solution (e.g. Git, SVN, CVS, etc) Interest in CI/CD (continuous integration / continuous delivery) area Proficiency in spoken and written English BONUS POINTS FOR Proficiency in Java Hands-on experience with modern CI/CD solutions (e.g. Jenkins, CircleCI, etc). Unix/Linux system administration experience. Familiarity with modern compute infrastructure technologies (e.g. Docker, Kubernetes, OpenStack, etc). Understanding of distributed systems fundamentals. BENEFITS Check out the overview of the  benefits and additional perks offered at Box. Box lives its values, with community and in-person collaboration being a core part of our culture. Boxers are expected to work from their assigned office a minimum of 3 days per week. Your Recruiter will share more about how we work and company culture during the hiring process. EQUAL OPPORTUNITY  We are an equal opportunity employer and value diversity at our company. We do not discriminate on the basis of race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, disability, and any other protected ground of discrimination under applicable human rights legislation". For details on how we protect your information when you apply, please see our Personnel Privacy Notice . For more details on how Box Poland protects your information, please see our Supplemental Personnel and Candidate Privacy Notice .    #LI-OS1 #LI-hybrid Create a Job Alert Interested in building your career at Box? Get future opportunities sent straight to your email. Create alert Apply for this job * indicates a required field Autofill with MyGreenhouse First Name * Last Name * Email * Phone Country * Phone * Location (City) * Locate me Resume/CV * Attach Attach Google Drive Enter manually Enter manually Accepted file types: pdf, doc, docx, txt, rtf Cover Letter Attach Attach Google Drive Enter manually Enter manually Accepted file types: pdf, doc, docx, txt, rtf LinkedIn Profile * Website How did you hear about this job? Do you now, or will you in the future, require sponsorship for employment visa status (e.g., H-1B visa status, etc.) to work legally for Box in Poland? * Select... 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