Brim Financial is a category defining fintech, building the operating system for credit cards and payments. Our platform powers card programs for banks, credit unions, fintechs, and global brands across North America. We are a fast growing company. We are backed by EDC Growth Equity, Epic Ventures, Vistara Growth, and Impression Ventures and have been recognized as a CB Insights Fintech 100 company and Deloitte Fast 50 and Deloitte Fast 500 winner.
We are looking for a Senior Software Engineer to lead the architecture and development of core platform systems. This is a high-ownership role - you'll design and scale the services that process credit card transactions, power real-time rewards at every merchant globally, and integrate with banking cores and payment networks. The systems you build will directly serve major financial institutions and their millions of end customers.
What You'll Do- Lead the architecture, development, and optimization of services across the full stack using PHP and Python, with a focus on scalability, security, and long-term maintainability
- Design and implement RESTful APIs and microservices that integrate with banking cores, payment networks, and institutional partner systems
- Optimize MySQL performance through query tuning, schema design, and data modeling for high-throughput financial transaction systems
- Drive engineering standards for quality, testing practices, and CI/CD workflows across the team
- Provide leadership and influence the team's AI tooling strategy - evaluating, adopting, and establishing best practices for AI-assisted development across the engineering organization
- Champion security and compliance best practices appropriate for a regulated financial services platform
- Bring deep business understanding to technical decisions - the best solutions come from engineers who understand the full picture, from cardholder experience to settlement
- Mentor mid-level and junior engineers on system design, full-stack fundamentals, and professional growth
- 6+ years of professional development experience with deep expertise in application architecture and production systems at scale
- Strong command of MySQL including query optimization, schema design, and performance tuning
- Extensive experience with RESTful API design and microservices architecture
- A track record of making sound technical decisions under ambiguity - designing systems, evaluating tradeoffs, and leading through influence rather than authority
- Comfort working across the full stack - you're not boxed into backend or frontend, you go where the problem is
- Comfort with remote-first, sync and async collaboration and strong written communication skills
- Comfort with remote-first, sync and async daily collaboration with fluid times
- Ability to balance long-term architectural thinking with pragmatic delivery in a fast-moving environment
- Experience in fintech, payments, credit card infrastructure, or regulated financial services
- Familiarity with multi-tenant platform architecture or real-time transaction processing
- Experience with AI-assisted development tools or integrating LLM APIs into production systems
- Background with PCI DSS, SOC 2, or financial compliance requirements
- Competitive compensation and equity
- Remote-first workplace
- Comprehensive health plan and PTO
- A team that treats AI as a force multiplier, not a threat
- Real ownership - you'll shape the systems and standards that define how we build
- Direct influence on the technical direction of a platform serving major financial institutions
- Remote (US/Canada) | Full-Time
- Compensation: CA $140,000-$185,000+
- Base salary range: For this role, candidates can expect a base salary range, described in the posting. Actual compensation is determined based on skills, experience, and role level. Exceptional candidates may be considered above the top of the range, and pay can increase quickly for those who make a big impact in the role.
Skills Required
- 6+ years of professional software development experience
- Deep expertise in application architecture and production systems at scale
- Proficient in PHP
- Proficient in Python
- Strong command of MySQL including query optimization, schema design, and performance tuning
- Extensive experience with RESTful API design and microservices architecture
- Experience driving engineering standards, testing practices, and CI/CD workflows
- Ability to make sound technical decisions under ambiguity and evaluate tradeoffs
- Comfort working across the full stack and strong written communication for remote collaboration
- Experience mentoring mid-level and junior engineers and providing technical leadership
- Champion security and compliance best practices appropriate for regulated financial services
- Experience in fintech, payments, credit card infrastructure, or regulated financial services
- Familiarity with multi-tenant platform architecture or real-time transaction processing
- Experience with AI-assisted development tools or integrating LLM APIs into production
- Background with PCI DSS, SOC 2, or financial compliance requirements
What We Do
Headquartered in Toronto Canada, Brim built a state-of-the-art credit card infrastructure and digital platform bringing ground-breaking innovation to the credit card and financial space. Beyond our full suite of consumer and business credit cards including buy-now pay-later capabilities, Brim’s Platform as a Service enables banks, fintechs, credit unions and large companies to innovate with flexibility and speed. Leveraging our end-to-end digital platform, suite of credit cards, financial products and embedded global rewards enables our B2B partners to launch a turnkey white labeled or co-branded platform in weeks. Our proprietary tech stack merges the two verticals of Credit Cards and Rewards/Loyalty in real-time and our infrastructure is live at all merchants worldwide, making Brim Rewards the world’s largest open loyalty and rewards ecosystem. We're a team at the intersection of finance, tech and consumer experiences: highly skilled, passionate, and innovative individuals with deep expertise in financial products and solutions and a commitment to positive change.
