Box

Backend Software Engineer III, Metadata Core

Warsaw, Poland
Level
Senior

Not stated in the posting: salary, work type, visa.

Open. First seen 27 October 2026.

Apply on the company's site →

About the role

WHAT IS BOX?

Box's standard text

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?

Metadata is a key component of the Box Intelligent Cloud, enabling customers to add additional context to their files and transforming them into actionable content. In the current iteration, it's used to organize, discover, annotate, secure, and retain content. Metadata Platform adoption continues to grow exponentially as more Box products, like Shield, Relay, Forms, Sign, Governance, etc, rely on it internally and as our customers continue to build custom applications leveraging it.

But, we've only scratched the surface of what's possible. That's where you come in!

As we embark on the mission to deliver a next-generation Metadata Platform, we're looking for a Senior Software Engineer to join us and play a pivotal role. You'll have the opportunity to work with a team of talented, collaborative, and fun engineers, solving some of the toughest challenges, as we build out the future of intelligent content management in the cloud. The work you do will have an immediate and lasting impact on the productivity of millions of users, at some of the most important enterprises of our time.

WHAT YOU'LL DO

  • Design and implement scalable services with a focus on reliability, observability, operability and efficiency.
  • Collaborate with partner teams and domain architects on system design and services integration.
  • Be heavily involved in defining the vision and assembling feature roadmaps.
  • Work with cutting-edge technologies like Kubernetes, Docker, BigTable, and Istio.
  • Strengthen engineering processes, principles, and culture within the team and across Box, by championing a culture of learning, continuous improvement, and blameless retrospection.
Box's standard text

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.

WHO YOU ARE

  • You have 4+ years of professional software development experience.
  • Proficient in Java, familiarity with other scripting languages like Python, Scala or PHP is a plus.
  • Proven ability to design, build, and deploy high-quality software.
  • Strong knowledge of algorithms, data structures, software design principles, and object-oriented programming.
  • Skilled in designing and developing APIs.
  • Familiarity with NoSQL databases such as MongoDB preferred.
  • Passionate about new technologies with the capability to implement them in existing products.
  • Proficiency in spoken and written English.

BONUS POINTS FOR

  • Experience working with message queues and/or streaming data systems like Kafka/PubSub.
  • Experience with Google Cloud Platform (GCP), Amazon Web Service (AWS) or Azure.
  • Experience deploying and operating microservices on Kubernetes.

METHODOLOGY

  • Agile management - Scrum
  • Issue tracking tool - Jira
  • Knowledge repository - Confluence
  • Code reviews - GitHub Enterprise
  • Version control system - GIT

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

Box's standard text

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. Box strives to respect the dignity and ‎‎independence of people with disabilities and is committed to giving them the same ‎‎opportunity to succeed as all other employees.

Inclusiveness is core to our culture at Box, and we strive to ensure you get the most from your interview experience.

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.

NOTICE OF USE OF AI

Box's standard text

At Box, we believe in the power of AI to improve the recruiting process while keeping people at the heart of every decision. For more information on the use of AI in our hiring process, please visit our webpage here.

#LI-EMEA #LI-AK1 #LI-hybrid

What this role asks for

Particular to this role

Docker · Istio · Kafka · Microservices · MongoDB · NoSQL · PHP

Rare in Box's other 41 open postings.

Standard for backend roles

AWS · Java · Kubernetes · Python

Common in backend postings at any company.

66% of this description is written for the role. The rest is Box's standard text, folded away below.

Compared with Box's other open jobs.

The team: Engineering

This role is one of 3 open in Engineering. 3 were posted in the last 30 days.

WHAT THE TEAM WORKS WITH, ACROSS ITS POSTINGS

AWS (3 of 3), Azure (3 of 3), Docker (3 of 3), GCP (3 of 3), Git (3 of 3), GitHub (3 of 3), Istio (3 of 3)

OTHER ROLES ON THIS TEAM

From the team and dates on Box's own job board.

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