Data Science Manager at Wallapop

Wallapop is a Barcelona based scale-up driven by the purpose to empower people to embrace a more conscious and human way of consumption. We believe in a world where collaborative economy is mainstream. This is what drives us. 💫

Wallapop operates in Spain, Italy and Portugal, offering a catalogue of several hundreds of millions of products and services. Powered by technical innovation and continuous improvement, we bring together the scale & trust of classifieds with the marketplace’s convenience & reach. 🌱 Our mission is to enable a connected trade ecosystem, making 2nd-hand the norm through smart use of technology.

Backed by top investors such as Accel, Insight Partners & Naver Corp we bring our total valuation to 806 million EUR and are embarking on our international journey with the aim to become the world’s best unique goods trading platform.

The Challenge 🧩

We are seeking a highly motivated and experienced Data Science Manager to lead and grow a team of talented data scientists. In this role, you will be responsible for the overall direction and success of data science initiatives across the organization. You will work closely with stakeholders across various departments to understand their business needs, translate them into actionable data science projects, and deliver impactful solutions that drive business growth and improve operational efficiency.

What You Will Do 👇

• Team Leadership:

  • Lead, mentor, and develop a high-performing team of data scientists, fostering a collaborative and innovative work environment.

  • Recruit, hire, and onboard top data science talent.

  • Set clear performance goals, provide regular feedback, and conduct performance reviews.

• Build & Own Data Science Roadmap:

  • Define and prioritize data science projects aligned with business objectives.

  • Develop and manage project timelines and resources effectively.

  • Oversee the entire project lifecycle, from initial scoping and data exploration to model deployment, ongoing monitoring & impact assessment.

• Technical Expertise:

  • Apply, mentor & review latest data science, machine learning, and artificial intelligence methods & practices.

  • Provide technical guidance and support to the data science team (python, R, SQL) working with industry leading tools (Amazon Sage Maker, S3, Redshift, Jupyter notebooks and more)

  • Collaborate with engineers and other technical teams to ensure seamless integration of data science solutions into production environments.

• Stakeholder Management:

  • Build and maintain strong relationships with key stakeholders across the organization.

  • Communicate complex technical concepts to non-technical audiences effectively.

  • Present data-driven insights and recommendations to senior leadership.

• Data Strategy:

  • Contribute to the development and implementation of the company's overall data strategy.

  • Advocate for data-driven decision making across the organization.

  • Promote a data-centric culture within the company.

What We’re Looking For 🔎

• Master's degree in Computer Science, Statistics, Mathematics, or a related field or equivalent experience
• 5+ years of experience in a data science or machine learning role, with at least 3+ years of experience in a managerial or leadership position.
• Strong proficiency in Python and R.
• Experience with machine learning algorithms (e.g., supervised, unsupervised, deep learning).
• Expertise in data mining, data warehousing, and data visualization tools.
• Familiarity with cloud computing platforms (e.g., AWS, Azure, GCP).
• Excellent communication, presentation, and interpersonal skills.
• Strong analytical and problem-solving skills.
• Ability to work independently and as part of a team.  
• Proven leadership and mentorship skills.
• Excellent project management and organizational skills.
• Strong business acumen and understanding of business needs.

Do note that all our jobs are 📍 Barcelona based. We follow a hybrid model where flexibility rules. We commit to a minimum of 6 days per month in the office. Each team self-organizes to decide on cadence and in-person/remote rituals.

Wallapop is an equal opportunity employer. We celebrate diversity and are committed to creating an inclusive environment for all employees as we want Wallapop to be a place for everyone.

Additionally to the opportunity to contribute to an agile product set up and work together towards achieving our meaningful mission, we offer the following 🍭 Perks & Benefits:

• Competitive phantom shares package for all employees
• Generous individual learning budget of 2k per year
• Group and individual English, Catalan & Spanish lessons as part of our working day
• Private Health Insurance with Allan
• Flexible working hours + intensive Fridays
• Flexible remuneration to deduct from gross salary (kindergarten/food/transport check)
• Gym & Wellness plan, including physiotherapist in the office
• Generous referral Program & Charity Donation
• Bonus for weddings & newborns
• Wallapop Renta (Tax income support)
• Monthly plan for free shipping, bumps & home-pick-up on our services
• Work anniversary Gifts and Birthday Surprises
• Contribution towards your WIFI in your monthly payroll
• One-off payment based on compensation package to go towards setting up your home office
• Relocation package (monetary support and legal advice) and visa sponsorship, if applicable
• 26 holidays per year
• TOP hardware of your choice (latest Apple or Windows)

What does the hiring process for this position look like? 👀**Please, note that all interviews take place remotely over hangouts.**

Intro Call - run by talent acquisition, focus on providing more information about the role and the company as well as going over your experience, motivation, and expectations. This usually takes 45-60 minutes.

Leadership Interview - run by the hiring manager, focus on leadership and/or management skills aligned with the role requirements. This usually takes 45-60 minutes.

 Task / Case Study Submission / Take-home test - you will be assigned a task to submit within 5 up to 7 days where you will be able to showcase your expertise / technical skills required for the role.

Expertise Interview - run by the hiring team, focus on the required core skills and the ability to deliver in a given context. This usually takes 60-90 minutes.

Stakeholder Interview - run by relevant stakeholders reflecting the reality of the context of the role, focus on the ability to collaborate & deliver in a cross-functional set-up. This usually takes 60 minutes.

Culture Interview - run by culture interviewers, focus on adherence to Wallapop's purpose and business proposition. This usually takes 60 minutes. 

Offer - should you be the right candidate, your offer will be discussed over a call with talent acquisition and will then be confirmed in writing.