Senior Software Engineer

About Brim
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 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 Engineer

to lead the architecture and development of core platform systems. This is a high-ownership role - youll 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 Youll 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 teams 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

What Youll Bring

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 - youre 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

Bonus If You Have

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

What We Offer

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 - youll shape the systems and standards that define how we build

Direct influence on the technical direction of a platform serving major financial institutions

Other Information

Remote (US/Canada) | Full-Time

Reason for vacancy: New vacancy

Salary range: CAD $130,000-$160,000

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