
Job Overview
Location
Toronto, California, Canada
Job Type
Full-time
Category
Backend Engineer
Date Posted
March 1, 2026
Full Job Description
đź“‹ Description
- • As a Senior Backend Software Engineer at Marqeta, you will be instrumental in developing and scaling the robust backend services that power our innovative modern card issuing platform. This role offers a unique opportunity to contribute significantly to a rapidly growing company, shaping the future of payments technology.
- • You will be responsible for the end-to-end lifecycle of software development, from initial design and architecture to implementation, testing, and deployment. This includes creating detailed engineering design documentation, meticulously reviewing code to ensure quality and maintainability, and continuously identifying opportunities to enhance our systems, infrastructure, and development processes.
- • A core aspect of your role will involve building and shipping impactful features that directly address customer needs. You will collaborate closely with product stakeholders to translate business requirements into effective technical solutions, ensuring that we deliver customer value with speed and efficiency.
- • As a senior member of the team, you will play a crucial role in mentoring and elevating less experienced engineers. This involves providing guidance, sharing best practices, and setting a strong example through your own technical contributions and collaborative approach.
- • You will independently write high-quality, well-structured code that is not only functional but also maintainable, reusable, and adaptable to evolving requirements. This includes designing software components with simplicity, testability, debuggability, and logical, user-friendly APIs as key considerations.
- • Proactively identify technical gaps and propose actionable plans to address them, contributing to the overall technical roadmap and strategic direction of the engineering team.
- • Challenge existing norms and propose innovative solutions that can drive significant improvements in performance, scalability, and efficiency.
- • Lead the design of small to medium-sized components and features, and actively participate in the design discussions for larger, more complex system components. This progression will see you move from task-level impact to influencing project-level outcomes.
- • You will possess significant ownership of specific components or features within our system, taking responsibility for their performance, reliability, and evolution.
- • Participate in a rotational on-call schedule to ensure the continuous availability and stability of our production systems. This is a required component of the role and specifics will be discussed during the interview process.
- • The role is designed for individuals who thrive in a collaborative environment, are passionate about building scalable software, and are eager to make a tangible impact in the FinTech space.
- • You will be expected to decompose complex business problems into elegant, scalable software solutions, often involving multiple interacting components. Your ability to build correct, maintainable software components will be paramount.
- • A strong focus on quality, meeting deadlines, and delivering robust solutions will be essential for success in this role.
- • Effectively communicate technical concepts and trade-offs to diverse audiences, including non-technical stakeholders, ensuring clarity and alignment across the organization.
- • Work collaboratively with cross-functional teams to identify potential technical blind spots and clarify any ambiguities, fostering a shared understanding and driving informed decision-making.
- • Contribute to the continuous improvement of our development practices, including code reviews, testing strategies, and deployment pipelines.
- • Embrace the "Flexible First" work model, allowing for remote work within Ontario or British Columbia, Canada, while maintaining high levels of productivity and collaboration.
- • This role is ideal for an engineer who is looking to grow their career in a dynamic and fast-paced environment, taking on challenging projects and contributing to the success of a leading FinTech company.
Skills & Technologies
Java
AWS
Docker
Kubernetes
GitHub
Backend
Senior
Remote
Degree Required
About MQ Referrals LLC
MQ Referrals operates a cloud-based patient-referral platform for medical and dental practices. The software automates secure transmission of referral documents, appointment scheduling, and case-status tracking between providers while integrating with electronic health-record systems. Designed for HIPAA compliance, the platform offers real-time analytics on referral volume and conversion rates, aiming to reduce leakage and improve continuity of care across outpatient networks.
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