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:

We are seeking a Web Developer to support our front-end experimentation and optimization efforts. The ideal candidate blends design skills with strong HTML/CSS/JS expertise to code, run, and implement A/B tests, ensuring seamless, high-performance, and responsive user interfaces. This will be a 1 year fixed term contract, working remotely from our Warsaw office. 

What you'll do:

• A/B Test Development: Create, code, and deploy variations for A/B, multivariate, and split-URL tests.

• Implementation & Coding: Implement winning test variations into the live product code, ensuring clean, optimized HTML, CSS, and JavaScript, including CSS preprocessors (Less/Sass).

• QA & Optimization: Perform rigorous Quality Assurance (QA) on experiments across devices and browsers before launch to verify functionality and data accuracy.

• User-Centered Design: Create wireframes, prototypes, and high-fidelity mockups for new design iterations using tools like Figma, Sketch, or Adobe XD.

• Collaboration: Work closely with CRO team, web team and marketing teams to analyze test results and translate data into actionable insights.

Who you are:

• Technical Expertise: Proficiency in HTML5, CSS3, and JavaScript, experience with Drupal is a plus

• A/B Tool Proficiency: Hands-on experience with platforms such as Optimizely, VWO, Adobe Target, or similar.

• Design Skills: Strong portfolio demonstrating UI design, user journey mapping, and wireframing.

• Experience: 2+ years of experience in front-end development, with a specific focus on UI/UX development or conversion rate optimization (CRO).

• Understanding of Metrics: Familiarity with key performance indicators (KPIs) like conversion rate, bounce rate, and click-through rate.

• Experience with server-side testing methodologies.

• Experience in e-commerce or B2B SaaS industry.

• React/Nextjs - nice-to-have skill

Tech Stack

• CMS: Drupal 10

• Repository: Github Cloud

• A/B Tool: Adobe Target

• Design tool: Figma

BENEFITS
Check out the overview of Life at Box which include general perks and benefits.

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.

At Box, we believe unique and diverse experiences benefit our culture, our products, our customers, our company, and our world. We aim to recruit a passionate, high-performing workforce that reflects the world we live in. If you are head-over-heels about this role but unsure if you meet all the requirements, we encourage you to apply!

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-EMEA

#LI-HYBRID

Senior UI Designer wanted to join our cross-functional creative team and be at the forefront of digital design, focusing on creating interfaces that enhance user experience and drive conversion.

The opportunity

This role is ideal for a strong individual, who is passionate about design. One who can think conceptually and lead the execution of online visual identity as well-being skilled in conversion-led design for transactional websites.

What you’ll get to do

• You’ll create digital brand look and feel, and design pixel perfect responsive interfaces for clients, ensuring you meet both user and business needs.
• You’ll have experience of working with design systems to create design work at scale, along with an understanding of user centred design best practice, conversion design and accessibility principles.
• Your work will be of the highest standard and will impress clients and resonate within the eCom landscape, owning a compelling portfolio of digital design work.
• You’ll be hands-on and willing to work in a fast paced, ever-moving environment. You’ll keep up-to-date with the latest advances in technology, design trends and tooling.
• You’ll be able to communicate your design ideas and solutions to clients and other members of the team, whilst confidently defending your design decisions.
• You will work closely with stakeholders, fellow designers, UX consultants, product managers, and developers.

What you should have

• Ability to contribute to and evolve a design system, not just use it
• Understanding of component logic, variants, properties
• Demonstrable eCommerce experience
• Experience with design tokens
• Responsive behaviour logic
• Excellent design skills, proficient in Figma, Sketch and Adobe Creative Suite.
• Comfortable working across multiple brands and visual identities, adapting design approach while maintaining consistency and quality
• Collaboration with developers on handover and implementation realities
• Great attitude, strong work ethic, excellent communication skills.
• Ability to manage own projects and to work quickly and accurately to tight deadlines.
• Able to multi-task, with excellent problem-solving abilities.
• Able to present concepts and design decisions.
• Enthusiastic, self-confident and self-motivated.
• Willing to adapt and take on new challenges and driven to continually improve.
• Passion for technology and web-based applications.
• Experience working in a digital or creative agency or in-house design studio
• Experience presenting to clients
• Degree educated in Graphic/UI design or similar discipline
• Compelling portfolio that demonstrates high quality design online, including eCommerce
• Have an outstanding eye for design and typography

Bonus points if you have

• Ability to create high-fidelity, interactive prototypes that simulate real-world user journeys (Figma - must have; ProtoPie, Principle, Framer, Webflow
• Content-aware design
• Experience using AI tools to accelerate UI production workflows

What we can offer you

We offer net hourly rate for B2B cooperation ranging from 110 - 150 PLN, dependent on your skills and experience.

Alongside the opportunity to work with some of the most exciting brands around the world, we’ll also prioritise your career development and help you grow your skills. We’ll empower you to make a difference, allow you to be yourself, and respect who you are.

Our culture thrives on our core values, designed for impact-driven individuals: Heart, Brains and Courage.

We lead with Heart, fostering empathy and trust where genuine connections and human-centric work flourish.
We empower your Brains for innovation, valuing relentless curiosity and collaborative intelligence to solve complex challenges.
And we champion Courage, inspiring you to speak up, embrace experimentation, and advocate for bold solutions that push our thinking to be better than yesterday.

Learn more about us on our LinkedIn page, visit our YouTube channel and follow us on social media Instagram VML Poland and Facebook page.

Please note that this job is a full-time position located in Poland, but the selection process will be conducted in English. 

Please send over your CV in English. 

In compliance with Polish regulations, VML Enterprise Solutions is committed to fostering a transparent and ethical work environment. We encourage reporting of any potential irregularities or misconduct. For detailed information on our whistle-blower policy and reporting procedures, please refer to our dedicated document.

AT VML Enterprise Solutions

Our Enterprise Solutions division houses strategic consultants, creative and technical architects and skilled developers and operators that together help some of the world’s leading organisations to deliver outstanding digital experiences across all major routes to market worldwide: marketplaces, online retailers, D2C, B2B and social platforms. With over 4,200 experts in 55 operational centres across 34 countries, our capabilities span the entire buying journey from customer acquisition, through engagement, to conversion and loyalty, driving multi-channel growth for world-leading brands.

We work with some of the most exciting brands such as The Coca-Cola Company, EY, Bosch, Unilever, Ford, DFS, Mercedes-Benz, Johnson & Johnson, Nestlé, Sainsbury’s, Selfridges, Shell and Tiffany & Co. We’ve built over 500 platforms for brands and retailers and generate in excess of $29bn annually for our clients and work with over 50 strategic partners including Adobe, SAP, Salesforce, HCL, Shopify, Sitecore, BigCommerce, commerce tools and Acquia. Our reputation is based on our people, and we believe we have some of the best in the business.

As our business grows internationally, we’re looking for new people to join us on our journey to inspire and take a key role in shaping some of the best commerce solutions, services, and websites in the world. Working as a team, no problem is insurmountable; we share in our client’s successes and believe that anyone can show creative bravery no matter what their role is in the team.

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❗️ Important – On-Site Role in Poland, Warsaw❗️
⚡ We are looking for an experienced Senior HTML/Markup Developer to join our development team in Lisbon and help build and style high-quality iGaming websites. You will play a key role in crafting visually engaging and responsive interfaces by focusing on markup and CSS styling, turning Figma designs into fully functional, high-performance web experiences.

🎯 Your Mission:
Contribute to the creation and customization of new iGaming brand websites. You will be responsible for translating design specifications into pixel-perfect, responsive layouts while ensuring consistency, performance, and maintainability across multiple platforms. Collaboration with designers, developers, QA, and product teams will be central to your role.

✅ Responsibilities:
• Set up and customize new brand websites based on design specifications
• Implement and style interfaces following Figma layouts and branding guidelines
• Work closely with designers to fine-tune and resolve design nuances
• Customize and style key website components, including login and registration pages, dashboards, game halls, sports pages, and navigation elements
• Update and manage core framework versions across brands
• Ensure code quality through code reviews and release management
• Support live brands, handling styling updates, fixes, and feature rollouts
• Collaborate with cross-functional teams to deliver seamless user experiences
• Introduce creative ideas and contribute to continuous improvements in design implementation and performance

✅ Requirements:
• 5+ years of professional experience as an HTML/Markup Developer
• Excellent knowledge of HTML (Pug) and CSS (SCSS)
• Strong understanding of UI/UX design principles, responsive design, and cross-browser compatibility
• Proven experience building adaptive layouts and maintaining pixel-perfect visual quality across devices
• Solid knowledge of CSS/JS animations, transitions, and motion best practices
• Experience working with Figma / Sketch / Photoshop for translating design systems into production-ready interfaces
• Familiarity with CSS preprocessors (Sass/Less) and version control tools such as Git
• Understanding of web performance optimization and accessibility standards
• Strong collaboration skills with designers, QAs, and developers in multi-brand or large-scale environments
• Attention to detail, with an eye for visual precision and consistency
• Intermediate or higher level of English

✅ Nice to Have:
• Experience with frontend build tools (Gulp, Webpack, etc.)
• Knowledge of template engines (Pug, Handlebars, etc.)
• Experience working with CSS frameworks (Bootstrap, Tailwind, etc.)
• Understanding of HTML email templates
• Familiarity with Canvas API, WebGL, ThreeJS, or GSAP for advanced visual effects
• Basic knowledge of Angular (for integration purposes only)

✅ Recruitment Process:

1. Interview with the Recruiter: An introductory conversation to get to know you better, discuss your background, and align expectations about the role and the company.
2. Technical Assessment (HackerRank): A short coding challenge designed to evaluate your technical skills and problem-solving abilities.
3. Technical Interview: An in-depth discussion about your technical expertise, hands-on experience, and approach to solving real-world problems.
4. Final Interview with the Hiring Team: A conversation with team members and leadership to assess cultural fit, collaboration style, and alignment with the team’s goals.
5. Offer: If everything goes well, we’ll move forward with a formal offer to join our team.