Senior Data Engineer

Senior Data / Application Engineer – Technical Lead 📍 Location: Lansing, MI (Hybrid) 💵 Rate: $60–$70/hr on W-2 (No C2C or third-party candidates) ⏱ Employment Type: Contract Position Overview We are seeking a highly experienced Senior Data / Application Engineer to provide ongoing maintenance, enhancement, and technical leadership for a large-scale, mission-critical enterprise application supporting complex workflows, data pipelines, and analytics. This platform plays a vital role in operational reporting, case management, and system integrations and is currently in an active modernization phase. The selected candidate will act as a Technical Lead, ensuring system stability, data integrity, security, and compliance while guiding other developers across multiple critical applications. This role combines hands-on development with architectural oversight and team mentorship. Key Responsibilities Technical Leadership & System Support • Serve as technical lead for a complex, modernized enterprise application. • Provide hands-on development while offering technical guidance and oversight to other developers. • Support multiple critical applications by contributing architectural and engineering expertise. • Ensure high availability, performance, and data accuracy to prevent outages and reporting issues. Application Development & Modernization • Lead the design and development of scalable, high-performance cloud-based solutions using AWS services. • Write clean, maintainable, and efficient code using Python and Scala. • Design, implement, and maintain ETL processes and data pipelines. • Participate fully in the Software Development Life Cycle (SDLC), including requirements gathering, functional and technical design, development, testing, and deployment. • Ensure adherence to SEM/SUITE standards, security requirements, and enterprise best practices. Data Engineering & Analytics • Design and maintain logical and physical data models. • Develop and optimize database objects including stored procedures and functions. • Implement and manage ElasticSearch and Kibana for efficient data retrieval, monitoring, and analytics. • Support data warehousing, visualization tools, and data integrity initiatives. Cloud, DevOps & Agile Practices • Build and maintain AWS cloud-based applications. • Support or implement CI/CD pipelines using Azure DevOps. • Use Git for source control and collaboration. • Work within large Agile teams, following Agile and test-driven development practices. • Create software design documentation and collaborate with stakeholders for review and approval. Healthcare & Integration Experience • Support integrations involving Electronic Health Records (EHR) and HL7 standards. • Ensure secure handling of sensitive and regulated data. Required Qualifications Experience • 12+ years of experience developing complex database-driven systems. • 8+ years of hands-on experience with: • Databricks • ElasticSearch and Kibana • Python and/or Scala • Oracle databases • 5+ years of experience with: • ETL processes and data pipeline development • AWS cloud services • Data warehousing and data visualization tools • Data integrity and quality initiatives • Agile development methodologies • CMM/CMMI Level 3 methods and practices • Test-driven development (TDD) Technical Skills • Strong expertise in: • AWS cloud application development • Databricks and distributed data processing • ElasticSearch and Kibana • Python and Scala • Oracle database development • ETL architecture and pipeline orchestration