Junior Data Engineer

We are looking for a passionate Junior Data Engineer to help fuel and orchestrate AppTweak’s next phase of growth! 🚀

As a Junior Data Engineer at AppTweak, you’ll play a key role in building and maintaining the data backbone that powers our Revenue Operations team. Your work will help ensure that our Sales, Marketing, and Customer Success teams make smarter, faster, and more data-driven decisions.

Our ideal candidate has a technical background (SQL, Python, data tools, etc.), and is eager to understand how data drives business performance and revenue growth.

Your Responsibilities:

Revenue Systems & Automation:

• You own our CRM and Business Intelligence tool (we use Hubspot and Metabase), and you ensure data integrity, data hygiene, and accuracy for our business analytics.

• Connect different data sources into a unified data lake and build reports using SQL to support business decisions.

• Automate workflows to improve lead routing, detect market signals, and help our teams engage with prospects at the right time.

• Optimize the revenue funnel from prospect to renewal, ensuring processes are scalable and efficient.

• Experiment with AI tools to boost automation, personalization, and data quality.

Enablement & Documentation:

• Manage and prioritize requests related to CRM and RevOps tools (HubSpot, Intercom, Gong, n8n, Apollo).

• Document workflows and processes so everyone can work consistently and clearly.

• Support and train internal teams on how to use tools effectively.

• Drive adoption of go-to-market tools through clear documentation, hands-on support, and continuous improvements.

Revenue Strategy Execution and Alignment:

• Work closely with Sales, Marketing, Product, Engineering, and Finance to connect strategy, data, and execution.

• Support growth initiatives with AI-powered segmentation, automation, and enrichment.

• Monitor buyer intent, engagement trends, and market insights to help teams anticipate opportunities and strengthen retention.

Location: Brussels, Belgium (hybrid work policy).

[Please note you will need to be based in Belgium and to have a European valid visa/work permit to be eligible for the role].

Must-have:

• Minimum 1-2 years of experience in a similar position, Consulting, data analysis, or related field.  

• Master’s degree in Engineering, Business Engineering, Computer Science, or a relevant field.

• A blend of business acumen and technical fluency. Familiar with SQL, Python or JavaScript, or API integrations. 

• Experience with data hygiene, governance, and integrity across tools (Hubspot, BI tools, customer data platforms).

• Autonomy, proactivity, and entrepreneurial mindset.

• Strong project management skills.
  

Nice-to-have:

• Experience optimizing business processes to align Sales, Marketing, and Customer Success.

• Knowledge about SaaS businesses.

• Genuine interest in joining a fast-growing tech company.

• Familiarity with AI tools/agents (eg. ChatGPT, n8n, Perplexity, Lovable).

What's in it for you?  

• Grow your career with one of Belgium’s top tech scale-ups.

• Connect with top global apps and games across industries like gaming, e-commerce, and more.

• Competitive salary, meal vouchers and eco-cheques.

• 12 RTT days per year on top of regular holidays.

• Flexibility in your work, with opportunities to learn and express your creative thinking.

• An exciting and fast-growing company with a people-first culture. “Diversity” and “work-life balance” are not just buzzwords at AppTweak.

• A diverse team within a flat hierarchy: altogether we speak more than 15 languages!

• Connect with your colleagues during quarterly team-building events and a yearly company-wide retreat in Belgium!

• Make a difference with a volunteer day every quarter to give back to the community.

• And yes, we’re serious about food - get ready to swap recipes and enjoy delicious moments with the team!

Who are we?

AppTweak is the trusted App Store Marketing & Intelligence Platform for mobile leaders worldwide; we provide innovative solutions that help apps and games optimize their App Store presence and increase downloads. For 10+ years, companies including Uber, Adobe, and Zynga have trusted our unique metrics, actionable insights, and expertise to make informed decisions and achieve long-term success in the competitive mobile market.

Driven by data science and a human-centered approach, AppTweak is recognized for its innovative features and rapid growth. We have been awarded “ASO Tool of the Year” and “App Data Platform of the Year” by the App Growth Awards, and have been four times recognized as one of the fastest-growing technology companies by Deloitte Belgium.

Today we are a team of +120 people based in 7 offices around the globe (Brussels, San Francisco, Bengaluru, Tokyo, Seoul, London and Beijing) supporting more than +2,000 customers worldwide.

Becoming an Apple Certified partner for Apple Ads this year means we’re entering our fast growth stage and are looking for ambitious individuals to join our team!