Senior Software Engineer, Cards

About the role

Chime’s Cards org is hiring an engineer to help scale and evolve our Cards portfolio. In this role, you’ll dive into high-impact projects across our service architecture, collaborating with product, risk, and design partners to deliver resilient, secure systems. While your focus will be backend, we're looking for someone who’s excited to roll up their sleeves and contribute wherever it’s needed most to move the team forward.

What you'll do

• Drive technical design and architectural decisions, while mentoring engineers and fostering cross-functional collaboration
• Lead and contribute to multiple projects simultaneously, balancing ownership of key initiatives with support across broader team efforts
• Build and maintain robust, low-latency APIs and backend services that power our Trust and Safety platforms
• Become the domain expert in our platform architecture, providing technical decisions and solutions to refine our maturing platforms
• Partner with data engineers, analysts, and product managers to ship impactful features that enhance member protection and experience
• Improve platform reliability and performance through thoughtful system architecture, observability practices, and automation
• Evolve our experimentation, policy lifecycle, and ML integration capabilities to support smarter and faster decision-making at scale
• Participate in an on-call rotation, including responding to incidents outside of regular working hours when necessary

Qualifications

• 5+ years of experience developing software in a production environment at scale
• Prior experience serving as a technical lead for a team and on complex projects—driving architectural decisions, coordinating execution, and aligning cross-functional teams
• Proven experience with Ruby on Rails or comparable frameworks
• Experience with transactional databases and caching systems
• Deep understanding of architectural patterns for large-scale web applications
• Commitment to mentoring engineers and fostering team development
• An appreciation of maintainable and well-tested code
• Curiosity and passion for diving deeply into system architectures and technical challenges
• Experience in fast-paced or early-stage environments is a strong plus