Backend Database Developer Jobs in Ontario (NOW HIRING)

As Marqeta’s Senior Cloud Database Engineer, you will join our Cloud Database Engineering team wherein you will be responsible for all databases that power Marqeta’s card issuing platform. You’ll be at the heart of all things Databases: automating the lifecycle of AWS Aurora instances, working closely with application teams to analyze Database performance and innovating in building Marqeta’s next-generation, highly available and resilient Database solutions.

Marqeta’s platform supports high cardholder availability across multiple regions globally, serving over 5 billion transactions annually. The Cloud Database Engineering team operates at the center of everything Marqeta does, and there is endless opportunity to make a sizable impact across your team and the whole business.

We work Flexible First. This role can be performed remotely anywhere within Ontario or British Columbia, Canada. We’d love for you to join us!

• Be part of a 24x7 on-call rotation supporting all services the Database Engineering teams own
• Contribute to the technical vision for database engineering in maintenance and Cloud migration of the relational and non-relational databases used at Marqeta.
• Contribute to the design of high availability and disaster recovery solutions for database architecture
• Work on initiatives including but not limited to platform architecture, database partitioning, sharding, and the continuous evolution of the database footprint to support business growth.
• Keep automation as the primary focus and ensure the design is tightly coupled with various automation to reduce manual work
• Work with the engineers from various teams to execute on short- and long-term technical vision.
• Work on the root cause analysis, remediation and document efforts to effectively minimize incidents.
• Write clear design documents and articulate technical decisions and trade-offs to peers and stakeholders.
• Contribute to monitoring and alerting practices using tools like Datadog.
• Mentoring junior engineers and contributing to team standards.

• 5+ years experience as a backend engineer and a bachelor's degree. In lieu of a degree, 7+ years of relevant experience may suffice.
• Experienced with cloud native databases (AWS preferred), including transactional RDBMS such as Aurora, MySQL, and Postgres, as well as NoSQL databases such as DynamoDB or MongoDB.
• Experienced in cloud based high availability, disaster recovery, and distributed systems including replication and failover.
• Experienced in IaaC, automation and orchestration tools (Terraform, AWS Step Function, etc.).
• Experienced CI/CD — pipelines, job runners, deployment automation
• Solid understanding of database administration: internals, query tuning, indexing, and performance metrics.
• Proficient in Python.
• Experience with Linux commands and shell scripting.
• Experienced in monitoring and observability tools: Datadog preferred.
• Strong sense of ownership — you follow through, raise issues proactively, and take accountability for your work.
• Curious and committed to continuous learning — you actively keep up with industry trends and apply new knowledge to your work.
• You have a team-oriented approach – can effectively work on a project and cross-functionally with other teams.

• Logical/physical migrations + blue-green switchovers (current strategic work)
• Database fleet management.
• AI tooling fluency
• Basics in Java
• Experience with payments or the FinTech space
• Experience with ProxySQL and/or RDS Proxy
• Virtual “Onsite” consisting of 4-5, 45 min calls
• Offer!

Marqeta is a Flex First company which allows you to choose your best working environment, whether that be from home or at a company office. To support Flex First, we calibrate pay to a competitive value according to working location.

When determining salaries, we consider several factors including, but not limited to, skills, prior experience, and work location. The new-hire base salary range for this position, reflected in CAD, is: 116,000 - 145,000.

We also believe in recognizing the contributions of our people. That's why we award annual bonuses to eligible employees, rewarding both individual performance and the success of the entire company.

Along with monetary compensation, Marqeta offers

• Multiple health insurance options
• Flexible vacation time
• Retirement savings program with company contribution
• Equity in a publicly‑traded company
• Monthly stipend to support our remote work model
• Annual “development dollars” to support our people growth and development
• Family-forming benefits and up to 20 weeks of parental leave

Equal Employment Opportunity, Accommodations and Privacy

Marqeta is an equal opportunity employer committed to an inclusive workplace that fosters belonging. We do not discriminate based on race, color, religion, sex (including pregnancy, lactation, childbirth, or related medical conditions), veteran status or uniformed service member status, age, national origin or ancestry, citizenship or immigration status, physical or mental disability, gender identity, gender expression, sexual orientation, genetic information (including testing or characteristics) or any other characteristic protected by applicable law. We also consider qualified applicants with criminal histories, consistent with legal requirements.

Marqeta endeavors to make reasonable accommodations for applicants with disabilities. If you are an individual with a disability and require a reasonable accommodation to submit this application, complete any pre‑employment testing, or otherwise participate in the employee selection process, please submit this form with your specific accommodation request.