Senior Fullstack Engineer, HomeWeb

About the Position

We are looking for a Senior Fullstack Engineer to join our HomeWeb team at Box, based in Warsaw, Poland. Box is the leader in Intelligent Content Management, and by joining us, you will have the unique opportunity to continue driving our platform forward. Our mission is to bring intelligence to the world of content management and empower our customers to completely transform workflows across their organizations.

Responsibilities

• Develop high-quality, scalable, and responsive user experiences using modern frontend technologies.
• Build and modernize key end-user surfaces such as homepage, navigation, collections, uploads manager, content metadata, and search. Contribute to AI-enabled product experiences.
• Improve application performance and delivery health by monitoring and optimizing various metrics.
• Improve CI/CD pipelines, automated quality gates, release processes, and observability.
• Leverage AI tools to accelerate development, research, documentation, and bug triage.
• Help evolve our main web application from a monolithic into a modular architecture using Module Federation.
• Replace manual QA processes with reliable automated test coverage.
• Contribute to defining and implementing engineering standards across product teams.
• Represent and advocate for Box Poland’s engineering excellence both internally and externally.
• Participate in our on-call rotation.

Requirements

• 6+ years of professional software development experience.
• Experience building, maintaining, and modernizing large-scale frontend applications.
• Deep expertise in JavaScript/TypeScript with at least one modern frontend framework (e.g., React), and strong HTML/CSS knowledge with responsive UIs.
• Strong understanding of state management, accessibility, performance, and security basics.
• Solid grasp of system design and data modeling.
• Strong experience with CI/CD, continuous delivery, safe rollout practices, and improving developer feedback loops.
• Familiarity with metrics such as deployment frequency, lead time for changes, change failure rate, MTTR, build reliability, test stability, Apdex, and page performance.
• Experience with Module Federation, federated frontend architectures, or large-scale frontend decomposition.
• Experience with frontend testing tools such as Playwright, React Testing Library, or WDIO.
• Experience designing and implementing APIs and services.
• Some backend coding experience with Node.js, PHP, or Java.
• Demonstrates ownership mentality and strives for excellence in both technical work and team interactions.
• Proficient in English.

Nice to Have

• Experience with Google Cloud Platform and/or Amazon Web Services.
• Experience with design system migrations, especially in mature enterprise applications.
• Experience with AI-powered product experiences.
• Experience improving release cadence, CI reliability, flaky test reduction, pipeline performance, or engineering productivity metrics in large-scale software organizations.
• Passionate about new technologies with the capability to implement them in existing products.

We Offer

• Competitive salary and benefits.
• Opportunity to work in an AI-first company.
• Hybrid work model with a minimum of 3 days per week in the office.
• Collaborative and inclusive company culture.

About the Company

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.

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, with a focus on Tuesdays, Wednesdays, and Thursdays.

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.