Senior Data Engineer Python Jobs in Seattle, WA (NOW HIRING)

This is a fully REMOTE position. Only applicants who currently reside in California, Colorado, Oregon, and Washington State will be considered for this role.

About 3Si

Third Sector Intelligence (3Si) is a mission-driven company that provides data and analytics solutions to support early childhood education programs. We are a small, high-performing, and rapidly growing 20-person company with team members in Washington, Colorado, California, and Oregon.

We are looking for a passionate and talented Senior Data Engineer to join our team and help us make a real difference in the lives of children and families.

About the Role

This role is critical in directly impacting the company’s mission to provide data-driven insights to improve early childhood education across the country.

3Si is entering a period of significant growth and expansion, with several new contracts and expansions expected in 2026. This growth will require building and maintaining robust, scalable, and secure data pipelines.

The Senior Data Engineer will help to automate operational tasks, improve data quality and consistency, and empower other teams to access and utilize data more effectively. The Senior Data Engineer will work closely with other data engineers and BI analysts to implement a vision for a more automated and user-friendly data platform that can be easily deployed to clients.

Responsibilities

• Design, build, and maintain robust and scalable data pipelines using Python and SQL.
• Contribute to the development of a modular platform architecture that supports client-specific customizations while maintaining a clean and efficient core system.
• Develop and implement automation for routine operational tasks, such as data ingestion and configuration management. This includes automating manual data uploading processes.
• Develop and maintain a comprehensive unit testing framework for ETL processes and data transformations to ensure data quality.
• Implement comprehensive logging, monitoring, and alerting mechanisms for all ETL processes and data transformations.
• Work directly with clients and cross-functional teams; strong communication skills and professionalism are essential.
• Provide guidance and mentorship to junior engineers to enhance their technical skills.

• 5+ years of experience as a Data Engineer or in a similar role.
• Strong programming skills in Python and SQL.
• Experience working with cloud environments for data storage, processing, and deployment.
• Experience with workflow orchestration tools.
• Experience with data modeling, ETL development, and data warehousing.
• Experience with unit testing and source control.
• Fluency in applying generative AI tools and techniques to accelerate development, prototype solutions, and optimize workflows.
• Excellent communication and collaboration skills, including the ability to communicate technical concepts to non-technical audiences.
• Ability to work independently and as part of an agile team.
• Passion for data quality, automation, and building scalable systems.
• Experience working with large datasets from diverse sources.
• Ability to effectively prioritize tasks and manage time to meet deadlines.
• Strong problem-solving skills and a desire to learn and grow professionally.

Bonus Points

• DevOps experience, including containerization and infrastructure-as-code.
• Understanding of cloud security, governance, and cost optimization.
• Experience building and maintaining APIs that facilitate data movement across systems.
• Experience developing and deploying ML pipelines, LLM models, and predictive analytics solutions.
• Experience working with early childhood education data.

Benefits

• Be a part of a company experiencing significant growth and making a real difference.
• Work on a small, collaborative, and high-performing team.
• Make a direct impact on the company's success.
• Flexible remote work environment.
• Competitive salary and benefits package.

3Si Perks

3Si offers a professional and fun work environment. We recognize and value our employees and strive to create a supportive environment for our team. Here are some of the "perks" we provide to ensure our employees can thrive:

• Competitive compensation with base salary range of $135k - $165k, plus annual bonus plan.
• 100% Company sponsored Medical, Dental, Vision, STD, EAP, and voluntary life/AD&D plans.
• Paid Time Off starting at 3 weeks per year and 11 paid holidays.
• 401k retirement plan + match.
• Home office stipend upon hire and annually every January thereafter.
• Career development opportunities.

3Si provides equal opportunity for all applicants without regard to race, color, religion, sex (including pregnancy), national origin, ancestry, age, disability, genetic information, marital status, sexual orientation, veteran status, or any other basis protected by state or federal law.