Sr. Data Engineer

# Sr. Data Engineer Apply
** Job#: 3038847
***
* Job Description:

**** Senior Data Engineer (L6)
**** Sustainability Data Platform Migration Senior Data Engineer
**** Overview:
** Apex Systems is seeking a Senior Data Engineer to support the migration of a legacy database environment into a Redshift-based Sustainability Data Platform. This role is focused on hands-on execution of migration activities involving datasets used to analyze data center sustainability metrics, including water consumption, carbon emissions, and energy usage. The Senior Data Engineer will partner closely with the existing team to implement complex transformations, troubleshoot migration challenges, and ensure data quality throughout the migration process.

Location:

Seattle, WA (Onsite 5 days/week)
** Responsibilities:
*** Design, develop, and implement ETL/ELT pipelines supporting migration activities.
* Build and enhance AWS Glue jobs using PySpark.
* Implement transformations required to populate Redshift target tables.
* Review existing source-to-target mappings and translate legacy logic into target implementations.
* Investigate and resolve complex transformation or data quality issues identified during migration.
* Modify and maintain Airflow (MWAA) workflows as needed.
* Perform detailed data validation and reconciliation between source and target environments.
* Execute testing activities and document migration outcomes.
* Troubleshoot pipeline failures, performance issues, and production defects.
* Collaborate with team members and stakeholders to clarify requirements and resolve technical questions.
* Participate in code reviews and contribute to engineering best practices.
* Support deployment activities and production cutovers.
* Document assumptions, findings, and implementation details throughout the migration effort.
*
* Required Qualifications:

*** 6+ years of Data Engineering experience.
* Strong hands-on experience with:  + AWS Glue  + PySpark  + Amazon Redshift  + Apache Airflow or MWAA
* Advanced SQL development and troubleshooting skills.
* Experience developing and maintaining production-grade data pipelines.
* Experience supporting data migration initiatives.
* Strong analytical and problem-solving capabilities.
* Experience performing data validation, reconciliation, and testing activities.
* Familiarity with Git-based development practices.
* Ability to operate independently and navigate ambiguity in evolving environments.
*
* Preferred Qualifications:

*** Experience with Apache Iceberg.
* Experience migrating legacy databases or data platforms to modern cloud-based data warehouses.
* Familiarity with large-scale operational or infrastructure datasets.
* Experience supporting sustainability, utility, or consumption analytics.
* Exposure to AWS-native analytics ecosystems.
** Success Measures:
*** Complex migration deliverables completed accurately and on schedule.
* High-quality, production-ready pipelines delivered with minimal defects.
* Data validation and reconciliation activities completed successfully.
* Technical issues and transformation challenges resolved efficiently.
* Strong collaboration with the existing engineering team to meet critical migration milestones.  
* Everforth Apex is a world-class IT services company that serves thousands of clients across the globe. When you join Everforth Apex, you become part of a team that values innovation, collaboration, and continuous learning. We offer quality career resources, training, certifications, development opportunities, and a comprehensive benefits package.

Our commitment to excellence is reflected in many awards, including Clearly Rateds Best of Staffing in Talent Satisfaction in the United States and Great Place to Work in the United Kingdom and Mexico.
** Everforth Apex uses a virtual recruiter as part of the application process. Click  here for more details. By applying for this job, you agree to receive calls, AI-generated calls, text messages, or emails from Everforth Apex and its affiliates, and contracted partners. Frequency varies for text messages. Message and data rates may apply. Carriers are not liable for delayed or undelivered messages.

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** Everforth Apex Benefits Overview:
Everforth Apex offers a range of supplemental benefits, including medical, dental, vision, life, disability, and other insurance plans that offer an optional layer of financial protection. We offer an ESPP (employee stock purchase program) and a 401K program which allows you to contribute typically within 30 days of starting, with a company match after 12 months of tenure. Everforth Apex also offers a HSA (Health Savings Account on the HDHP plan), a Support Linc Employee Assistance Program (EAP) with up to 8 free counseling sessions, a corporate discount savings program and other discounts.

In terms of professional development, Everforth Apex hosts an on-demand training program, provides access to certification prep and a…