We are looking for a person willing to learn our technology stack and our business. This is an entry level position. We expect a good grasp of modern Javascript but we will teach you what is needed from our stack. Reporting to the head of backend, you will partake in our backend dev team. **Key Responsibilities** * Develop new functionalities and maintain our product. * Deliver new code fast and reliably, and always ensure that it works in production. * Be able to promptly solve issues directly in the existing code. * Proactively analyse areas to improve and propose projects to make our product more effective **Desired Skills & Experience** * Knowledge of JavaScript and some other language. * Some experience with Git version control. * Basic Linux administration. * Good communication skills, oral and written. * Proactivity, critical thinking and good disposition for working in teams. * Fluency in English (Spanish is a plus). * Being based in Europe and having an european working permit. **Bonus Experience** * Experience with Node.js. * Experience with Go. * Experience with NoSQL and big data databases: BigQuery, Redis, RocksDB... * Experience in cloud computing like AWS or GCP. * Interest in machine learning and statistics. Don’t worry if you lack some of the requirements; we would teach you everything needed rather than passing on the right person. **What We Offer** * Competitive salary. * Permanent contract. * Career plan. * Courses (related online or offline courses you might like). * Remote work, also after COVID. * Flexible hours. * Join a motivated and innovative team using state­ of art technologies. * Join a company with large expansion and growth projects * Do work that makes a difference. **About mediasmart** mediasmart started in January 2012 and is one of the most innovative platforms in the mobile programmatic advertising space. VC funded in its origin, mediasmart is now part of Affle International (Singapore), a global consumer intelligence technology company that has Microsoft, D2C (An NTT DoCoMo, Dentsu & NTT Advertising JV), Itochu, Bennett Coleman & Company (BCCL) as shareholders, and whose Indian subsidiary trades on the India stock exchanges (BSE: 542752 & NSE: AFFLE). mediasmart has offices in Madrid, Paris, and New York. Since its inception, mediasmart has always been very clear on its position in the mobile advertising ecosystem: full focus on advertisers and the buying process. Today we are the first programmatic platform that allows advertisers to measure the incremental impact of their drive to store and app promotion campaigns in real time, so that they can invest more in what really helps them grow their business. mediasmart was one of the first players to enter the programmatic mobile ecosystem and to date our proprietary technology stack comprises of a DSP, DMP & Ad-Server, as well as direct connections to more than 30 ad exchanges where we buy display, video, audio and native ads on mobile apps, web, smart TV and desktop.