<h3>About the Role</h3><p>We are looking for a <strong>Senior Backend Spark Developer</strong> to join the <strong>Client Contribution Platform</strong> team. In this role, you will be responsible for designing, developing, and optimizing large-scale data processing solutions while driving technical decisions and ensuring the scalability, reliability, and performance of the platform.</p><p>As a senior team member, you will play a key role in mentoring other developers, collaborating with cross-functional teams, and contributing to the continuous improvement of the platform and its architecture.</p><h3>Key Responsibilities</h3><ul><li>Design, develop, and optimize scalable Big Data solutions using Apache Spark.</li><li>Lead technical decisions and contribute to the architecture of data processing solutions.</li><li>Develop, maintain, and optimize Big Data pipelines.</li><li>Support data integration initiatives across multiple systems and workstreams.</li><li>Ensure the performance, scalability, and reliability of data processing applications.</li><li>Troubleshoot and resolve complex technical and performance issues.</li><li>Collaborate with technical and functional stakeholders to define and implement solutions.</li><li>Promote Agile development practices and contribute to CI/CD and DevOps processes.</li><li>Mentor and support junior and mid-level developers, sharing best practices and technical knowledge.</li><li>Explore and promote the adoption of emerging technologies, including AI-assisted development and automation.</li></ul><h3>Required Skills &amp; Experience</h3><ul><li><strong>5+ years of hands-on experience</strong> developing Big Data solutions with <strong>Apache Spark</strong>.</li><li>Strong experience programming in <strong>Scala</strong> (preferred) or <strong>Python</strong>.</li><li>Solid SQL skills and experience with data modeling.</li><li>Experience working with Big Data platforms such as:<ul><li>Azure Databricks</li><li>Apache Hive</li><li>or similar Spark-based environments.</li></ul></li><li>Experience working in Agile environments and applying CI/CD and DevOps best practices.</li><li>Hands-on experience with:<ul><li>Git</li><li>GitHub</li><li>SonarQube</li><li>Nexus</li></ul></li><li>Strong analytical and problem-solving skills.</li><li>Proactive mindset with the ability to work independently and take ownership of technical solutions.</li><li>Experience mentoring and supporting other team members.</li><li>English level <strong>B2+</strong> or above.</li></ul><h3>Nice to Have</h3><ul><li>Experience with workflow orchestration tools such as:<ul><li>Control-M</li><li>Apache Airflow</li><li>or similar solutions.</li></ul></li><li>Knowledge of Hadoop ecosystems.</li><li>Experience using AI-assisted development tools or contributing to AI-driven initiatives within data platforms, software development, or process automation.</li></ul><ul><li>Permanent, full-time contract with career development opportunities.</li><li>Chance to wo