Data Engineer / Migration Specialist

Overview TISTA Science and Technology is seeking a Data Engineer / Migration Specialist to join our growing team. At TISTA, you’ll do meaningful, mission‑driven work that improves lives alongside teammates you trust and leaders who are transparent and supportive. We invest in your learning and internal mobility so you can build a career that keeps advancing. We’re proud to serve and hire Veterans, and we put people first in everything we do. TISTA associates enjoy above Industry Healthcare Benefits, Remote Working Options, Paid Time Off, Training/Certification opportunities, Healthcare Savings Account & Flexible Savings Account, Paid Life Insurance, Short-term & Long-term Disability, 401K Match, Tuition Reimbursement, Employee Assistance Program, Paid Holidays, Military Leave, and much more! Responsibilities Plan and run data migrations from legacy systems (VistA, Maximo, DMLSS) to modern platforms, and write the data migration plans. Build ETL/ELT pipelines in Databricks (PySpark, Spark SQL) and VALIP. Write and maintain the data mapping and validation plan; reconcile and validate data after each load. Mask and sanitize production data for lower environments. Support data extraction, analytics requests and decommissioning data archives. Qualifications 6+ years in ETL, data migration or database development (Mid / Level II). SQL and Python; PySpark or Spark SQL. Data mapping, validation and reconciliation for migrations. Desired Skills: Migrating from VistA, Maximo or