Financially empowering the next generation of consumers.
Principal Engineer – Data Infrastructure
Location
United States
Posted
104 days ago
Salary
$200K - $300K / year
Seniority
Lead
Job Description
Principal Engineer – Data Infrastructure
Sezzle
• End to end ownership of our data warehousing infrastructure, its KPIs and its SLAs. • Design, build, and optimize large-scale, high-performance data pipelines to support analytics, product insights, and operational workflows. • Architect and evolve Sezzle’s data ecosystem, driving improvements in reliability, scalability, and efficiency. • Help Sezzle evolve our data systems beyond the current scale and stack with whatever tooling is necessary to handle processing high volumes of events and performing complex ETL. • Lead development of ETL/ELT workflows on our current tooling using Redshift, DBT, AWS DMS, and related modern data tooling. • Partner with cross-functional teams (engineering, analytics, product, finance, risk) to gather or adapt requirements and deliver robust, high-quality datasets. • Evaluate and integrate new technologies, guiding the evolution of Sezzle’s data stack and infrastructure. • Optimize Redshift and warehouse performance, including query tuning, modeling improvements, and cost management.
Job Requirements
- 12+ years of experience in data engineering, with a strong track record of building and scaling production-grade systems.
- Deep expertise with AWS Redshift or similar products, including performance tuning, table design, and workload management.
- Strong hands-on experience with ETL/ELT frameworks, especially DBT, AWS DMS, or similar tools.
- Proficiency in SQL (advanced level) and at least one programming language such as Python, Scala, or Java.
- Experience building and maintaining AWS-based data platforms, including S3, Lambda, Glue, or EMR.
- Track record designing scalable, fault-tolerant data pipelines using modern orchestration tools (Airflow, Dagster, Prefect, etc.) processing more than 100GB - 1 TB of new data a day
- Strong understanding of data modeling, distributed systems, and warehouse/lake design patterns.
- Ability to work in a fast-paced, collaborative environment with excellent communication and documentation skills.
Benefits
- Unlimited PTO, volunteer hours and sabbatical
- Life, STD/LTD, medical, dental and vision insurance
- Highly discounted LifeTime gym membership
- 401k with match
- Collaborative fun co-workers
- The opportunity to join the fastest growing FinTech alongside a team of motivated and driven individuals
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