Data Engineer/Python SQL Developer*

SierTeK proudly serves our clients by providing expertise in the Program Management, Information Technology, and Administrative Support domains. Founded in 2007 as a minority and service-disabled veteran-owned company, we serve as prime- and subcontractor for a multitude of Federal Department of Defense contracts. By focusing on continual improvement, our services remain at the forefront of our industry, and we pride ourselves on delivering our services with the highest degree of integrity.

SierTeK Ltd. is seeking a Data Engineer/Python & SQL Developer to support an opportunity remotely.

Position Overview Section 

We are seeking a highly qualified Data Engineer / Python & SQL Developer to support the design, development, and deployment of data engineering and ETL solutions in a mission-focused environment. The ideal candidate will have advanced technical expertise in Python and SQL, with hands-on experience developing scalable data pipelines and cloud-based integrations using AWS services.

This role will also apply strong database design principles, including table and schema design and stored procedure development, while producing high-quality technical documentation and contributing effectively within an Agile delivery environment. Experience supporting U.S. Air Force or Department of Defense (DoD) programs, as well as relevant Air Force credentials, is strongly preferred.

Essential Job Functions

• Design, develop, enhance, and maintain data pipelines, ETL workflows, and backend data processing solutions using Python and SQL.
• Implement and support cloud-based data engineering capabilities leveraging AWS Lambda, AWS Glue, Amazon S3, and other AWS services.
• Apply database design and data architecture best practices, including schema development, data modeling, normalization, optimization, and data integrity controls.
• Analyze business and technical requirements and translate them into scalable, maintainable, secure data solutions.
• Develop and maintain technical documentation, including solution documentation, interface specifications, data flow diagrams, and operational procedures.
• Participate in Agile delivery processes, including backlog management, sprint planning, status tracking, and issue resolution using Jira.
• Troubleshoot and resolve data quality, integration, and performance issues across complex data environments.
• Develop and execute testing strategies for ETL pipelines and data workflows.
• Conduct code reviews and provide technical guidance to other Data Engineers.
• Collaborate with developers, architects, analysts, stakeholders, and program leadership to support successful delivery outcomes.
• Contribute to continuous improvement of data engineering practices, processes, and solutions.

Minimum Position Requirements

• Advanced or expert-level experience developing solutions using Python and SQL.
• Hands-on experience with AWS Lambda, AWS Glue, Amazon S3, and related ETL or cloud data integration technologies.
• Strong understanding of database design, data modeling, and data architecture best practices.
• Experience with table design, stored procedure development, query optimization, and data integrity.
• Demonstrated ability to develop scalable, maintainable, and secure data pipelines.
• Experience producing clear, structured technical documentation for both development and operational purposes.
• Experience working within Agile development teams and using Jira for workflow and delivery management.
• Strong analytical, problem-solving, written, and verbal communication skills.
• Ability to work independently while collaborating effectively within a fast-paced, deadline-driven environment.
• Experience at the Consultant/Senior Consultant level, or equivalent USDC/PDM/Specialist level.

Highly Desired Qualifications

• Prior experience supporting Department of Defense (DoD) or U.S. Air Force programs.
• Existing Air Force credentials and/or the ability to work within a secure or controlled government environment.
• Familiarity with secure data handling, compliance-driven delivery, and mission-focused technology programs.
• Experience working within complex enterprise data environments with multiple upstream and downstream integrations.
• Experience supporting large-scale cloud data environments and enterprise ETL architectures.

SierTeK is an equal opportunity employer. Employment is decided based on qualifications, merit, and business need. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, disability, protected Veteran status, gender identity and sexual orientation.

This policy applies to all terms and conditions of employment, including recruiting, hiring, placement, promotion, termination, layoff, transfer, leaves of absence, compensation, and training.

If you need assistance or accommodation due to a disability, you may contact us at 1+833.743.7835.

*This job posting is to identify potential candidates for positions in order to respond to a request for proposal. This job posting, including but not limited to, qualifications, duties, compensation and benefits, is subject to change based on the terms and conditions of the awarded contract and is contingent on SierTeK being awarded the contract.