Sr. Data Engineer
Apex Systems Inc
- Sr. Data EngineerApply**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 ClearlyRateds 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. You can reply STOP to cancel and HELP for help. You can access our privacy policy at 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 SupportLinc 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 library of technical and leadership courses/books/seminars once you have 6+ months of tenure, and certification discounts and other perks to associations that include CompTIA and IIBA. Everforth Apex has a dedicated customer service team for our Consultants that can address questions around benefits and other resources, as well as a certified Career Coach. You can access a full list of our benefits, programs, support teams and resources within our ‘Welcome Packet’ as well, which an Everforth Apex team member can provide.**Everforth Apex Systems is an equal opportunity employer. We do not discriminate or allow discrimination on the basis of race, color, religion, creed, sex (including pregnancy, childbirth, breastfeeding, or related medical conditions), age, sexual orientation, gender identity, national origin, ancestry, citizenship, genetic information, registered domestic partner status, marital status, disability, status as a crime victim, protected veteran status, political affiliation, union membership, or any other characteristic protected by law. Everforth Apex will consider qualified applicants with criminal histories in a manner consistent with the requirements of applicable law.**If you require an accommodation under the Americans with Disabilities Act to participate in an interview with a virtual recruiter or to use our website for a search or application, please contact our Benefits Department at View email address on click.appcast.io or View phone number on click.appcast.io. Please note that this contact information is strictly to be used for medical ADA accommodations and that no other inquiries will be answered.**UnitedHealthcare creates and publishes the Transparency in Coverage Machine-Readable Files on behalf of Everforth Apex Systems.***Employee Type:** Contract**Location:** Seattle, WA, US**Job Type:****Date Posted:** June 17, 2026**Pay Range:** $80 - $90 per hour
- J-18808-Ljbffr Apex Systems
Vacancy posted 4 days ago
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