Backend Developer

pWe're looking for a motivated bBack End Developer /b to join our team as we continue to scale. /ppYou’ll be responsible for helping us to bring AppTweak to the next level For that, you will work in a multi-skilled team responsible for part of the AppTweak tool and infrastructure. You will take care of the development and maintenance of data fetch workers and our databases. /ppUnder the direct supervision of the Engineering Manager, you’ll work in a multidisciplinary squad (ASO Squad) alongside senior backend and frontend engineers and product designers. You’ll also receive support from the Backend Chapter and Backend Tech Lead. This environment offers an excellent opportunity to learn from experienced colleagues, strengthen your technical skills, and grow as an engineer. /ppLocation: Brussels, hybrid setting (min. 3 days per week at the office). /ph3What you'll do /h3pAs a Back-end developer, we expect you to have a first understanding of the current tech environment and database structure. /ppIn your role, you will help us make the right decisions by understanding business requirements and translating these into strong scalable solutions. /ppYou will also take part in the systems implementation with the rest of your team. /ppYour focus will be on: /pulliArchitecture and build scrapers and ETL pipelines that ingest the data that power AppTweak; /liliArchitecture and build API's that make those data available; /liliMonitor and optimize our message queue systems; /liliMonitor and optimize our databases. /li /ulbr/h3Must-have /h3ulliBachelor or master's degree in computer science or engineering. /lili2+ years of experience working with databases, building data models and optimizing queries for performance at scale. /liliKnowledge of relational (PostgreSQL) and non-relational databases (MongoDB) /liliKnowledge of Docker. /liliProficiency in at least one backend language (Ruby, Python, Go…) /liliBuilding and maintaining APIs or services, writing tests, Git and code review /liliDebugging and monitoring live systems, handling incidents, and performance work beyond queries /li /ulh3Nice-to-have /h3ulliExperience with AWS and Kubernetes. /liliKnowledge of OLAP databases (Clickhouse). /liliGitHub profile or link to open source work
- we'd like to see any project you're proud of (personal or professional). /li /ulpbDon't tick every box? We'd still like to hear from you. We hire for potential and we'll help you grow. /b /ppAppTweak welcomes applicants of every gender, age, background and identity. If you need any adjustment during the hiring process, just let us know. /pp(Please note you will need a Belgian valid visa/work permit to be eligible for the role). /ph3Technologies we use /h3ulliWe're mainly relying on three different languages:ulliRuby in the backend (for APIs and crawlers). /liliTypescript in the frontend (for our React SPA). /liliPython (mainly used by our Data Science team). /li /ul /liliEverything is hosted on AWS and running on K8s, and we have created a robust CI system to develop and deploy our code quickly. /li /ulh3What's in it for you /h3ulliGrow your career with one of Belgium's top tech scale-ups. /liliCompetitive and optimized salary package, structured to make the most of what you earn. /liliMeal vouchers and eco-vouchers. /liliComplementary Health Insurance Plan. /lili12 RTT days per year, on top of regular holidays. /liliFlexible, hybrid work setup. /liliOpportunities for continuous learning and creative thinking. /liliQuarterly team-building events and a yearly company-wide retreat. /liliOne volunteer day every quarter to give back to the community. /liliSerious about food. From themed lunches to spontaneous kitchen moments, food is genuinely part of how we connect at AppTweak. /li /ulh3Who are we? /h3pAt AppTweak, we are a team of more than 120 people, spread across Brussels, San Francisco, London, Tokyo, Seoul, Bengaluru, Ho Chi Minh, and Berlin. /ppWe build the platform that helps mobile leaders win in the app stores. More than 2,000 customers, like Uber, Zynga, and The North Face trust us to do that. /ppWe started in Brussels in 2014. It began with a small team and a simple bet: the best ASO insights come from people who go deeper into app store data than anyone else. /ppWe move fast, we speak up and support each other to do better. We keep learning, even on the days we are already good at our jobs. None of that happens by accident, but because people here take ownership. They show up for each other too, across offices and timezones. /ppIf that sounds like the kind of place you want to grow, we would love to hear from you /ppAt AppTweak, our first spoken language is English, from our Belgian HQ, to our teams all over the world. /ppTo ensure a smooth review process, please submit your application in English. /p