Senior Staff Software Engineer - Data Platform

Toronto, CanadaOn-site

Responsibilities

A track record of evolving live infrastructure. Improving reliability, performance, and DX on systems that real teams depend on, sequenced so the work doesn't disrupt them.
Build vs. buy, migration design, risk management, all the way through to delivery.

The team builds and operates the data platform: the infrastructure, abstractions, and SDKs that the rest of Marqeta's data and ML organization runs on.
At Marqeta, participation in a rotational on-call pager duty is a required part of the software engineering role.
Iceberg/Delta on S3, Spark/Glue processing, Kafka and CDC pipelines, the abstractions that let other teams land data, build pipelines, and publish datasets without inventing the patterns themselves.
Strong fluency in the surrounding stack: AWS data services (S3, Glue, EMR), Spark, Airflow, Kafka, IAM boundaries for multi-tenant data access.
Mastery of Python in a production data-platform context, with credible depth in Go or Java.
The ability to adopt the best tool for the job.
You write design docs and RFCs people actually read.
A history of growing other engineers — including peers at your level. The team gets stronger because you're on it.
Helpful, not required: payments or fintech context (PCI-DSS, SOX, SOC 2). CDC tooling
experience (Debezium, Kafka Connect). Data governance tooling (DataHub, Amundsen, Collibra). Public technical writing or open-source contributions to data infrastructure. Typical Process
– Solve for the Customer: With a deep understanding of our customers' business and empathy for their needs, we deliver products and services that drive their success.
– Make it Count: We drive forward with focus and agility. With a sense of urgency and purpose, we get the job done, and done right.

Virtual "Onsite" consisting of four 45-60 min video calls Offer! Compensation and Benefits
When determining salaries, we consider several factors including, but not limited to, skills, prior experience, and work location.