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Box

Backend Software Engineer III, File System

Box
Poland · Full-time · Mid-Senior

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.

WHY BOX NEEDS YOU?

The Content Capabilities team is relatively new and is tasked with the ambitious goal of supporting the Box Content Cloud’s next 10x wave of growth. We aim to achieve this by building innovative new platform capabilities, enabling our product teams and customers to build intuitive and differentiated experiences that scale to millions of users.

We’re close to delivering the first set of features, unlocking new use cases and significantly increasing the scale at which users can collaborate on content. The team is just getting started though and has a strong roadmap of new capabilities to build. That's where you come in!

As we embark on this journey, we're looking for a skilled Backend Software Engineer to join us and play an important role. You'll have the opportunity to work with a small team of talented, collaborative, and fun people, solving some of the toughest challenges in the content management space. The work you do will have an immediate impact on the productivity of millions of users, at some of the most important enterprises of our time.

WHAT YOU'LL DO?

  • Work closely with engineering leadership to develop strategies for evolving the platform to its next generation.
  • Collaborate with product management to help refine requirements, break down complex projects into meaningful, deliverable units and lead the effort.
  • Design and implement scalable services with a focus on reliability, observability, operability and efficiency.
  • Continually improve the current code base and infrastructure patterns.
  • Work with cutting-edge technologies like Kubernetes, Docker, BigTable, Elasticsearch, Spark, and Istio.
  • Mentor new engineers and interns, contribute to team growth and development.
  • Participate in our on-call rotation, available at all times while on-call to help respond to and triage any issues that arise.

WHO YOU ARE?

  • 3+ years of professional software development experience building high-scale services.
  • Strong coder with demonstrated proficiency in Java (or similar languages)
  • You have experience designing, building, and deploying high quality software.
  • You are excited about solving complex technical problems using data-driven solutions.
  • You act like an owner and strive to do work you're proud of, both technically and in your team interactions.

BONUS POINTS FOR

  • Experience with Google Cloud Platform and/or Amazon Web Services.
  • Experience with message queues and/or streaming platforms (ex. Google Pub/Sub, Apache Kafka).
  • Experience building, deploying, and operating microservices on Kubernetes.

PERCENTAGE OF TIME SPENT

  • 20% design
  • 50% coding
  • 10% documentation
  • 10% bug fixes
  • 10% meetings

TOOLS WE'RE USING

  • Messaging - Slack
  • Ticketing/Planning - JIRA
  • Build server - Jenkins
  • Virtualization - Kubernetes
  • Cloud infrastructure - currently on-prem, being migrated to GCP
  • Application stack - Java microservices on Kubernetes, PHP monolith
  • Queue/Stream - Kafka, being migrated to Google Pub/Sub
  • Databases - MySQL

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.

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.

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, or disability status.

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.

Key Skills

Ranked by relevance

ai microservices kubernetes java google cloud platform message queues elasticsearch docker apache server kafka cloud spark php
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Posted
Mar 30, 2026
Type
Full-time
Level
Mid-Senior
Location
Warsaw
Company
Box

Industries

Construction Software Development IT Services IT Consulting

Categories

Engineering

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