Big Data Developer

RQ00111 -Senior Big Data Engineer-Location: Rockville, MD or Tysons, VA F2F IS A MUST after prescreening Requirements: Sr. Big Data Engineer – AWS, Hadoop, Athena, Glue (Catalog), Lake Formation, Trino, EKS, AI, CI/CD & MCP ServerWe are looking for a Senior Big Data Engineer who thinks beyond tickets and task execution. This role is for someone who questions the “why,” modernizes tech stacks, optimizes performance, and drives outcomes, not just a task executor.What You’ll Do• Design and build scalable data lakes and pipelines on AWS using cloud-native and automated solutions.• Enable fast, federated analytics using Amazon Athena and Trino, with performance tuning for large-scale queries.• Manage metadata, schemas, and discovery using AWS Glue Data Catalog.• Implement fine-grained data access and governance using AWS Lake Formation, KMS encryption, and SSL.• Build and operate data services on EKS (Kubernetes).• Work with the Hadoop ecosystem (Spark, Hive, HDFS) using partitioning, bucketing, and columnar formats (Parquet, ORC).• Troubleshoot and resolve complex big data issues across pipelines, clusters, and queries.• Design, implement, and maintain CI/CD pipelines using Jenkins or similar tools.• Monitor and observe pipelines and clusters using CloudWatch and Grafana.• Prepare high-quality datasets for AI/ML use cases.• Build, configure, and operate an MCP server for AI/ML integration.• Collaborate in Scrum teams; proactively identify gaps and propose out-of-the-box, scalable solutions.What We’re Looking For• 8+ years of experience in Big Data / Data Engineering.• Strong hands-on experience with AWS (S3, Glue Data Catalog, Lake Formation, Athena, EMR, EKS).• Proven experience with Trino (or Presto) and optimizing query performance.• Working knowledge of Kubernetes / EKS for data workloads.• Strong SQL, Python, and shell scripting skills.• Experience with CI/CD pipelines and Jenkins.• Experience building and configuring MCP server for AI/ML integration.• Ownership mindset — problem solver, not a task executor.Good to Have• AI/ML data pipeline exposure• Cloud-native data modernization experience