Backend Engineer

Responsibilities:

• Design, develop, and maintain robust, scalable, and maintainable services that meet business requirements and align with company standards
• Take end-to-end ownership of multiple domains, supporting them throughout their lifecycle (design, development, deployment, monitoring, maintenance)
• Investigate, resolve, and prevent production incidents to ensure minimal impact on users
• Collaborate with product managers, architects, and other developers to translate requirements into technical designs and deliver new features
• Drive improvements in development processes, code quality, testing practices, and system reliability
• Write clean, well-documented code and ensure proper test coverage (unit, integration, and functional)
• Actively contribute to the evolution of our microservice architecture while supporting existing systems
• Be an AI-first developer who actively builds and leverages agents to scale personal and team productivity

Requirements:

• 5+ years of professional experience in software development with Java
• Strong knowledge of Java Core (collections, multithreading, streams API) and Java 8+ features (lambdas, optionals, functional interfaces, records, etc.)
• Solid experience with the Spring stack: Spring Boot, Spring Cloud, Spring Data (JPA, JDBC)
• Proficiency in object-oriented design, design patterns, and software engineering best practices
• Hands-on experience with messaging systems like Apache Kafka
• Strong SQL knowledge, with experience in relational databases (e.g., MySQL/Postgresql)
• Experience writing and maintaining tests using JUnit, Mockito, Testcontainers, WireMock
• Familiarity with CI/CD tools such as TeamCity or Jenkins
• Strong troubleshooting and debugging skills, including working with monitoring and logging tools (Grafana/Prometheus, ELK)
• Willingness to participate in an on-call duty rotation to support production systems, ensuring timely response and resolution of critical incidents
• Excellent communication and collaboration skills, with the ability to work across teams
• Knowledge of microservice design principles and distributed systems

Nice to have:

• Experience with NoSQL databases (e.g., Redis, Aerospike)
• Knowledge of Docker and Kubernetes for containerized deployments

What does it mean to work at Playtika?

You’ll join a team of leaders in the field, and enjoy amazing benefits, some are listed below:

• A competitive salary and performance-based bonuses;
• Hybrid working mode: three days per week from our office in the heart of Warsaw (Browary Warszawskie) and two days remotely
• All you can eat! Breakfast, lunches, desserts, snacks and much more in our Playtika-only cafeteria
• Access to PlaytiCafe where all of your coffee (and other refreshments) dreams come true;
• Six “Power Up” long weekends for all, and additional day off for your birthday month;
• Private medical healthcare and three additional sick leave days;
• A wellness program in the office: yoga classes, massage chairs and zerobody room;
• Gaming room with a variety of activities;
• Flexible working hours and monthly happy hours;
• Work permit assistance for employees;
• Corporate celebrations, team buildings, and fun activities.

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