> Markdown version of [/jobs/ext/4625409-senior-big-data-engineer](https://www.wearedevelopers.com/jobs/ext/4625409-senior-big-data-engineer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Senior Big Data Engineer - **Company:** Baanyan Software Services, Inc. - **Location:** Tysons, VA, United States - **Experience:** Expert - **Contract:** Contract - **Skills:** Amazon Web Services, Big Data, Data Systems, Python (Programming Language), Performance Tuning, Standard Sql, SQL Databases, Apache Spark, Software Coding - **Published:** November 7, 2026 - **Apply:** https://www.dice.com/job-detail/b014cf23-fb06-439d-b95b-7e0ed8b0ed15 ## About the Role Looking for a candidate with experience creating pipelines in a large enterprise environment. MUST HAVE EXPERIENCE DEALING WITH PETABYTES OF DATA. Candidate will need expert level SQL skills. Hands-on Big Data Engineer with deep Spark expertise, strong AWS platform experience, solid programming (Python)/SQL fundamentals, and a focus on performance tuning, testing, and production-grade data systems. ## Description * High-impact engineering role supporting the Market Regulation / Surveillance group * Builds complex algorithms to ensure compliance in financial markets * Supporting surveillance for a new exchange (details confidential)