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Senior Frontend Software Engineer, Relay Experience

Boxinc

Warsaw, Poland (Warsaw Office) Hybrid permanent

Posted: December 15, 2025

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Job Description

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:

Many of the world's largest enterprises rely on Box to securely store their content, and we are helping to unlock the potential of their content through the development of additional core capabilities, like Box Relay. We are expanding Relay with additional features and supporting products.

Our Relay Experience team, based in Poland, works together to delight our users by enabling them to automate routine tasks. Our products save users time and deliver results in consistent manner. As our team in Poland continues to grow and take on building new product, we are looking for a seasoned engineer who can own large components of the system and work independently. In this role, your work will impact millions of users, who use Relay to get their work done on a daily basis.

What you'll do:


Compose written specifications and documentation for software projects.


Plan and effectively execute on project and quarterly deliverables.


Maintain documentation on development setup and engineering environment along with the greater team.


Attend and engage in weekly stand-ups, team meetings, manager 1:1s.


Work collaboratively with other engineers, team members and across teams.


Play a role in developing and fostering Box culture in the newly created office.


Represent Box Poland internally and externally


Participate in the production on-call duties rotation with the team members

Who you are:


Ideally 5+ years of professional software development experience.


BS, MS, or PhD in Computer Science or Engineering, or equivalent work experience


Strong proficiency in React framework - you have extensive experience building complex, scalable applications and understand modern React patterns.


Expert-level TypeScript skills - you write type-safe code and leverage TypeScript's. features to build robust, maintainable applications.


You possess strong knowledge of algorithms, data structures, software design principles


Experience with testing principles and frameworks (Jest, React Testing Library, Playwright, etc.).


Assess, communicate and complete project milestones with manager and team members in a time sensitive manner


Adapt to the technical and stylistic needs of integrations and projects as they occur; including technical tools, programming languages, technical limitations, and product requirements


Review and assess the technical feasibility of project requirements and propose innovative solutions


Be the technical expert and provide guidance to junior engineers on best practices, coding standards, and complex technical issues


Must speak English proficiently

Preferred skills:


Experience with public cloud systems such as GCP, AWS or Azure


Experience in a fast-paced, highly collaborative environment


Experience contributing to open source project

At Box, we believe that providing the best tools leads to the best outcomes. That's why we equip our engineers with AI-powered development tools like Cursor IDE and GitHub Copilot to help you write better code faster

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. Your Recruiter will share more about how we work and company culture during the hiring process.

Percentage of Time Spent:


60% new feature coding


15% bug fixes


15% meetings


10% documentation

Methodology


Agile management - Scrum


Issue tracking tool - Jira


Knowledge repository - Confluence


Code reviews - GitHub Enterprise


Version control system - GIT

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-VM1 #LI-Hybrid #LI-EMEA

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