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Technologies-expected : Golang RESTful API SQL Postgre SQL Dynamo DB Redis My SQL Git technologies-optional : Snowflake Scala Python Amazon Web Services Docker Kubernetes OAuth2 JWT Hive Spark about-project : We seek a highly skilled and motivated Back-End Developer to join our growing Samsung Ads team. As Back-End Developer, you will contribute to development and buildout of components of Samsung’s DSP platform. You will be closely working with local team in Warsaw, having also many opportunities of collaboration with Samsung’s remote teams across the globe (US, Korea, India, UK) to help implement and deploy services. Expertise you bring to the team, will play a crucial role in building modern, well performing, services which we will use to deliver targeted ads to our users. On daily basis, you will be collaborating with other professionals around design, implementation, and review of the source code, followed by delivery of proper documentation and quality. Samsung Ads is a highly successful and fast-growing business for over last six years. This business and its continued future success depend on the products, technologies, and tools owned by Samsung. Hundreds of people strong, with a substantial presence in five countries, Samsung Ads team is a dynamic and complex organization operating across a broad spectrum of product and strategic domains. Join our team and play a key role in shaping the future of our ad tech platform. responsibilities : Design and implement backend applications Collaborate with product managers, and other engineers to refine and improve data processing systems Design and maintain scalable and optimized data pipelines for efficient collection, processing, and storage data Participate in R&D projects in the area of Cloud Services Establish and follow best coding practices Work closely with stakeholders to understand and translate business requirements into technical solutions Conduct A/B testing and performance analysis to validate and iterate on attribution models Ensure software quality: create and maintain unit, integration and functional tests, participate in code review Report tasks progress requirements-expected : At least 3 years of commercial experience in developing Golang Knowledge of protocols and data exchange formats: HTTP/1.1/2.0, RESTful API, g RPC Knowledge of database (SQL/No SQL) technologies (Postgre SQL, Dynamo DB, Redis, My SQL) Experience in work with TDD/BDD methodologies Knowledge of Design Patterns Good understanding of SQL Knowledge of version control system: Git Proficiency in English, enough to communicate and understand technical documentation University degree in Computer Sciences, Telecommunication and/ or similar offered : Friendly working atmosphere Wide range of trainings (technical / soft-skills / e-learning platform) Opportunity to work in multiple projects Multidisciplinary and multicultural team Working with the latest technologies on the market Monthly integration budget Possibility to attend local and foreign conferences Opportunity to participate in science research (scientific papers, project proposals, patents applications, development of own side-projects) Laptop and PC workstation + 2 external monitors Office in Warsaw Spire near metro station Attractive relocation package Hybrid model of work – 3 days from the office per week benefits : sharing the costs of sports activities private medical care sharing the costs of foreign language classes life insurance corporate products and services at discounted prices integration events dental care no dress code leisure zone pre-paid cards baby layette charity initiatives unlimited free access to Copernicus Science Center mentoring program psychological support possibility to test new Samsung products