Back-end Engineer for Samsung Ads Project (Ads Reporting Services)

About our Team

We seek a highly skilled and motivated Back-End Engineer to join our growing Samsung Ads team. As Back-End Engineer, 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.

Role and Responsibilities

• Design and implement backend services
• 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
• Collaborate with data scientists, product managers, and other engineers to refine and improve attribution methodologies
• 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

Technologies in use

• Python, Ruby on Rails, Scala
• Docker, Kubernetes
• EMR (Hive, Spark), S3, Snowflake, PostgreSQL, MySQL, Airflow, AWS Athena
• AWS
• GraphQL, Rest APIs

Skills and Qualifications

• At least 3 years of commercial experience in developing Python and Scala
• Proficiency in data engineering (especially in projects using Hive/Spark)
• Experience in working with Kubernetes and stream data processing frameworks
• Hands-on experience with orchestration tools like Airflow or similar
• Knowledge of database (SQL/NoSQL) technologies (Snowflake, PostgreSQL, MySQL, DynamoDB)
• Good understanding of SQL, experience in optimizing SQL queries
• Experience in working with large datasets
• Experience in AWS
• Knowledge of protocols and data exchange formats: HTTP/1.1/2.0, RESTful API, gRPC
• Knowledge of Design Patterns
• 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

Nice to have

• GoLang
• Experience with GraphQL
• Experience in usage and administration of Amazon Web Services
• Experience in development of micro services/server less solutions
• Knowledge of container technologies like Docker and Kubernetes

We offer

• Team:
• 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)
• Equipment:
• Laptop and PC workstation + 2 external monitors
• OS: Windows, Linux
• Benefits:
• Private medical care (possibility to add family members)
• Multisport card
• Life insurance
• Lunch card
• A partial reimbursement of the cost of an English language course
• Possibility to learn Korean for free
• Variety of discounts (Samsung products, theaters, restaurants)
• Unlimited free access to Copernicus Science Center for you and your friends
• Possibility to test new Samsung products
• Location:
• Office in Warsaw Spire near metro station
• Attractive relocation package
• Hybrid model of work – 3 days from the office per week