ETL Developer

ETL Engineer - TS/SCI with Polygraph RequiredAbout the TeamAt Core Interface, we believe great software is built by small teams of thoughtful engineers working on meaningful problems. Our work supports mission-critical federal programs where the quality and reliability of the data layer directly determines mission outcomes.We're growing our data engineering team and are looking for ETL-focused engineers across multiple experience levels who take real ownership of the data lifecycle - from ingest through delivery - and communicate clearly about architecture tradeoffs.What You'll Do in This Role Design, build, and optimizeETL pipelinesfor large-scale data ingestion and transformation Develop custom solutions to ingest, profile, and exploit new and existing data sources Collaborate with data scientists and analysts to support model development and analytical workflows Maintain comprehensive data layer documentation for the broader engineering team Manage all stages of the data lifecycle from ingest planning through display Collaborate with teammates, service providers, vendors, and mission users to develop more efficient methods Identify and communicate risks, constraints, and tradeoffs in data architecture decisions Required QualificationsActiveTS/SCI with Polygraph U.S. Citizenship Bachelor's degreein Computer Science, Engineering, or related technical field StrongPython and/or Javadevelopment skills with significant SQL and database experience Hands-on experience buildingETL pipelinesin a Linux-based Big Data environment Experience parsing usingRegular Expressions Experience with interacting with theELK Stack Familiarity withRESTful APIintegration and data source consumption Clear communication skills in collaborative engineering environments Additional Strengths That Stand OutExperience with cloud data platforms ( AWS Glue/S3, Azure Data Factory/Synapse, Snowflake, Databricks ) Experience withApache Sparkor similar distributed processing frameworks Experience with pipeline orchestration tools such asApache Airflowor equivalent Experience withHadoop, HBase, and MapReduce Prior work in a mission environment or with diverse, complex data types Containerization experience withDocker and/or Kubernetes Prior experience supportingAI/ML pipelinedevelopment or deployment Core Interface BenefitsWe support our engineers with benefits designed for long-term success:100% employer-paid medical, dental, and vision (employee + family) 401(k) with 6% company contribution 4 weeks PTO plus 11 federal holidays Paid parental leave Government shutdown protection Tuition assistance and technical training Internet, phone, and fitness reimbursements Referral bonuses and spot awards Quarterly team eventsCommitment to InclusionCore Interface is an Equal Opportunity / Affirmative Action employer committed to building a workplace where everyone can contribute and grow. All qualified applicants will receive consideration for employment without regard to protected status under applicable law.