Description Deep Sync is the industry leader in deterministic identity and AI-powered data solutions. Leveraging our 35-year foundation of compiling direct mail-grade datasets, Deep Sync develops data-first technologies that power marketing, measurement, AI, and business intelligence for agencies and brands with our fully deterministic identity graph, privacy-first audiences, comprehensive data solutions, and integrations with leading platforms and cloud providers.

Position Overview We are seeking a Senior Data Engineer with deep expertise in data engineering, data architecture, and large-scale data platform design. This role will be responsible for leading the design, development, optimization, and governance of our data infrastructure. The ideal candidate will not only build and maintain complex data pipelines, but also provide technical leadership, mentor team members, and drive best practices in scalability, reliability, and data quality across the organization.

Key Responsibilities Data Architecture & Platform Leadership

• Design and evolve scalable, secure, and high-performance data architectures supporting large-volume, high-velocity data.
• Establish data engineering standards, design patterns, and best practices.
• Evaluate and recommend tools, frameworks, and technologies for data processing and storage.
• Partner with engineering leadership to align data strategy with business objectives.

Data Pipeline Development

• Lead the design, implementation, and maintenance of robust, scalable data pipelines.
• Ensure data quality, validation, lineage, and observability throughout the pipeline lifecycle.
• Implement fault-tolerant and highly available data processing systems.
• Drive automation and CI/CD practices for data workflows.

Data Integration & ETL/ELT

• Architect and oversee ETL/ELT frameworks transforming raw data into analytical and operational datasets.
• Integrate data from diverse sources including relational databases, APIs, third-party providers, and streaming platforms.
• Collaborate with analytics, product, and engineering teams to deliver reliable data products.

Performance Tuning & Optimization

• Monitor, troubleshoot, and optimize pipeline and warehouse performance.
• Identify bottlenecks and implement indexing, partitioning, denormalization, and query optimization strategies.
• Improve cost efficiency and resource utilization of data systems.

Leadership & Collaboration

• Mentor junior and mid-level data engineers through code reviews, design sessions, and technical guidance.
• Collaborate cross-functionally with product managers, analysts, ML engineers, and software teams.
• Participate in architectural reviews and technical planning initiatives.

Requirements

• 5–8+ years of experience in data engineering or related fields.
• 5+ years of advanced SQL query design, performance tuning, and optimization.
• 5+ years of experience in data warehouse architecture, implementation, and support.
• 5+ years of hands-on experience with ETL/ELT design, development, testing, and troubleshooting.
• Proven experience working with large-scale or “big data” environments.

Knowledge & Skills

• Expert-level proficiency in SQL design and implementation.
• Strong experience with Relational Data Warehouse Systems and Data Warehouse Management Systems.
• Deep understanding of indexing, partitioning, denormalization, and query optimization techniques.
• Experience building and optimizing large-scale data pipelines and distributed architectures.
• Proficiency in one or more programming languages such as Python, Java, or C#.
• Experience with cloud data platforms and modern data tooling (e.g., AWS, Azure, GCP, Spark, Airflow, Snowflake, Databricks, etc.) is highly desirable.

Preferred Qualifications

• Experience with streaming technologies (Kafka, Kinesis, Pub/Sub, etc.).
• Familiarity with data governance, privacy, and compliance frameworks.
• Exposure to machine learning data pipelines or feature engineering workflows.
• Prior experience in marketing data, identity resolution, or large-scale consumer datasets.

Location

• Kirkland, WA (First 6 months in-office; hybrid schedule available thereafter—typically remote on Mondays and Fridays, with Tuesday–Thursday in-office, subject to manager’s discretion).
• Registered to do business and willing to consider fully remote candidates in the following states; California, Colorado, Florida, Georgia, Missouri, New York, Oregon, South Carolina, Tennessee, Texas, and Washington.

Work Authorization: Applicants must be authorized to work for ANY employer in the U.S. We are unable to sponsor or take over sponsorship of an employment Visa at this time. Equal Opportunity Employer: Deep Sync provides equal employment opportunities to all employees and applicants for employment and prohibits discrimination and harassment of any type without regard to race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state or local laws. This policy applies to all terms and conditions of employment, including recruiting, hiring, placement, promotion, termination, layoff, recall, transfer, leaves of absence, compensation, and training. Please Contact: Recruiting | recruiting@deepsync.com