Staff Software Engineer, Frontend
Marqeta is on a mission to change the way money moves. We’re one of the earliest enablers of embedded finance, a market opportunity sized up in the trillions. Our card issuing platform provides unprecedented flexibility and control for companies to issue cards, authorize transactions, and manage payment operations in real time. Marqeta is powering the most well known brands in the new economy (Block, Cash App, Affirm, Instacart, Doordash, Uber, Walmart, etc). This is the opportunity of a lifetime to work with innovators around the world and unlock equitable financial access for all.
We are looking for a Staff Software Engineer, Frontend with strong expertise in React Native to provide technical leadership in building our UX Toolkit (Web/Native) at Marqeta. This is a newly formed area of focus, and we need a technical leader with deep experience in building cross-platform mobile and web applications from the ground up.
We work Flexible First. This role can be performed remotely anywhere within the provinces of Ontario and British Columbia, Canada preferably you residing in either Greater Toronto Area or Metro Vancouver. We’d love for you to join us!
The Impact You'll Have
- Partner with product, design, and engineering leadership to shape and deliver innovative cardholder experiences across web and mobile platforms, aligning technical strategy with business goals.
- Lead the design and development of React Native SDKs and applications, establishing architectural patterns that enable scalability, modularity, and cross-platform consistency.
- Architect reusable and extensible React Native components that adhere to modern UI/UX patterns, accessibility standards, and internal design systems.
- Drive mobile performance optimization strategies, including lazy loading, rendering optimizations, and bundle size reduction, to ensure fast, responsive experiences.
- Contribute hands-on to complex front-end systems using React Native, TypeScript, and web technologies, while fostering engineering excellence through mentorship and code quality initiatives.
- Define technical roadmaps and author detailed design documents that align with long-term platform strategy, balancing velocity with maintainability.
- Lead engineering discussions, guide decision-making across teams, and champion best practices for mobile and web development to improve developer velocity and user experience.
Who You Are
- Over 8 years of experience in web and mobile application development, with deep expertise in architecting and delivering React Native solutions at scale.
- Demonstrated mastery of React Native, including advanced usage of React Navigation, Expo, and custom native modules in Swift, Kotlin, Objective-C, and Java.
- Proven ability to bridge React Native with complex native iOS and Android features, driving seamless integration across platforms.
- Strong architectural understanding of React.js and modern state management solutions (Redux, Context API, Zustand, etc.), with experience scaling apps with predictable state flows.
- Led the development and enforcement of design systems and modular component architectures to ensure consistency, reusability, and maintainability across large codebases.
- Deep knowledge of mobile performance optimization, including instrumentation, memory profiling, and rendering improvements.
- Extensive experience integrating RESTful and GraphQL APIs with scalable error handling, caching, and offline support patterns.
- Expertise in implementing secure mobile authentication flows using OAuth, biometrics, and encrypted storage for session handling.
- Designed and maintained CI/CD pipelines using tools like Fastlane, Bitrise, and App Center to support robust, automated mobile delivery workflows.
- Strong Git expertise and deep familiarity with scalable development workflows, including trunk-based development, code reviews, and release strategies.
- Track record of mentoring engineers, driving cross-team mobile strategy, and raising engineering quality through technical leadership.
- Exceptional debugging and cross-platform troubleshooting skills with a focus on improving app reliability and user experience.
- Strong communicator and collaborator, known for partnering effectively with design, product, and backend engineering to align on vision, tradeoffs, and execution.
Nice to haves
- Experience with Swift and/or Kotlin for deeper native integrations in React Native apps.
- Domain experience in Payments or Fintech industries.
- Familiarity with App Store and Google Play Store deployment processes, including code signing, release management, and A/B testing.
- Experience using TypeScript to enhance maintainability and scalability in React Native applications.
- Knowledge of WebAssembly, PWAs, or alternative approaches to cross-platform development.
- Passion for delivering high-quality, delightful user experiences with a customer-first mindset
Your Manager
Recruiter for This Role:
Our (typical) process:
- Application Submission
- Recruiter Video Call
- Pair Programming Interview
- Engineering Leader Interview
- Virtual “Onsite” consisting of three 45-60 minute rounds
- Offer!
Compensation and Benefits
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 $148,900 to $186,100
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 time off – take what you need
- 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
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