Full Stack React Developer (Digital Marketing sphere) Locations Bulgaria Georgia Lithuania Moldova Poland Ukraine Company Background Our client is a global leader in digital advertising, providing a flexible and unified technology stack that includes a Demand-Side Platform (DSP) and Data Management Platform (DMP). Their ecosystem enables advertisers, agencies, publishers, and broadcasters to leverage data and advanced TV solutions for enhanced audience targeting and campaign performance across multiple channels, including display, video, and connected TV. Project Description The team is responsible for developing and maintaining core infrastructure and services that power the company's Data Management Platform (DMP). The team focuses on high-throughput data processing, audience segmentation, and system scalability to optimize advertising performance. Work includes managing large-scale data ingestion, refining audience classification, and integrating with external platforms for seamless data activation. Technologies React/Vue.js Java, Spring Boot, gRPC, Kafka, REST APIs AWS, On-Prem Environments What You'll Do Build and optimize frontend applications using React/Vue.js; Develop and maintain backend services using Java (Spring Boot); Ensure seamless API communication between frontend and backend; Improve performance, security, and scalability of the system; Work closely with UX designers and product teams to enhance user experience; Job Requirements 5+ years of experience in Front End (React) development; Expertise in Java (Spring Boot) will be a plus; Experience working with high-throughput distributed systems; Familiarity with API development and integration; Knowledge of cloud platforms (AWS) and on-prem infrastructure; Understanding of SQL and NoSQL databases such as Oracle DB, MongoDB, Vertica, and Druid; English proficiency from B1 for effective team communication; What Do We Offer The global benefits package includes: Technical and non-technical training for professional and personal growth; Internal conferences and meetups to learn from industry experts; Support and mentorship from an experienced employee to help you professional grow and development; Internal startup incubator; Health insurance; Sports activities to promote a healthy lifestyle; Flexible work options, including remote and hybrid opportunities; Referral program for bringing in new talent; Work anniversary program and additional vacation days. #J-18808-Ljbffr