Senior Data Warehouse Specialist / ETL Developer

<p><strong>ASSYST</strong> is seeking a highly skilled <strong>Senior Data Warehouse Specialist / ETL Developer</strong> to design, build, and maintain complex data pipelines that power enterprise analytics and reporting at <strong>Sterling, Virginia (Hybrid Role).&nbsp;</strong></p> <p>This role requires expertise in developing scalable ETL/ELT workflows, optimizing SQL performance, and ensuring data accuracy across diverse systems.</p> <p><strong>Key Responsibilities</strong></p> <ul> <li>Design, develop, and maintain robust ETL/ELT workflows to migrate and integrate data from multiple sources into target systems (e.g., MRT data warehouses).</li> <li>Extract, transform, and load data using advanced business rules to ensure accuracy, consistency, and reliability.</li> <li>Optimize SQL queries, ETL package execution, and overall pipeline performance for efficiency and scalability.</li> <li>Implement data quality checks, validation frameworks, and monitoring solutions to maintain high standards of data integrity.</li> <li>Collaborate with data architects, business analysts, and QA teams to translate business requirements into technical solutions.</li> <li>Provide technical leadership and mentorship to junior developers, enforcing best practices in ETL design, coding standards, and documentation.</li> <li>Troubleshoot and resolve complex data integration issues, ensuring timely delivery of solutions.</li> </ul> <p><strong>Qualifications</strong></p> <ul> <li>Bachelor’s degree in Computer Science, Information Systems, or related field (or equivalent experience).</li> <li>7+ years of experience in ETL/ELT development, data warehousing, and SQL optimization.</li> <li>Strong proficiency with ETL tools (e.g., Informatica, SSIS, Talend, or similar).</li> <li>Advanced SQL skills with proven ability to optimize queries and manage large datasets.</li> <li>Experience working with enterprise data warehouse platforms and cloud-based environments.</li> <li>Excellent problem-solving skills, attention to detail, and ability to work in cross-functional teams.</li> <li>Strong communication and leadership skills with a track record of mentoring junior team members.</li> </ul> <p><strong>Preferred Skills</strong></p> <ul> <li>Experience with cloud data platforms (AWS Redshift, Azure Synapse, Snowflake).</li> <li>Familiarity with big data technologies (Spark, Hadoop).</li> <li>Knowledge of data governance, security, and compliance standards.</li> </ul> <p><strong>ASSYST Benefits:</strong><br>We are proud to offer a robust benefits package including medical, dental, vision, 401(k) retirement plan, disability insurance, flexible spending accounts and more in order for our employees to maintain a secure work/life balance</p> <p><em>ASSYST is an Equal Opportunity Employer. Qualified applicants will receive consideration for employment without regard to race, color, religion, sex, age, disability, military status, national origin or any other characteristic protected under federal, state, or applicable local law.</em></p>