Lead Senior Full-Stack Engineer — Remote Onboarding & Growth

Affirm; Ottawa; On-site; CAD 153,000 - 213,000; Full time

Benefits offered by this job

Health care coverage

Flexible Spending Wallets

Time off

ESPP

Job summary

Affirm is seeking a Senior Full Stack Software Engineer to join the Acquisition & Onboarding team. You will guide architecture across mobile, web, and backend systems, mentor engineers, and drive high-velocity delivery with a focus on reliability and user experience.

The role emphasizes collaboration with product, design, and analytics in a remote-first environment. You will influence technical strategy, write high-quality code, and help shape the first customer experience that builds trust and

Qualifications

• Leads significant mobile initiatives and defines architecture.
• Experience shipping web apps with React or Vue.
• Proficient in JavaScript/TypeScript and back-end tech like Python, AWS, MySQL.
• Strong communication skills and ownership mindset.
• Bachelor’s degree or equivalent practical experience required.

Responsibilities

• Own quarterly goals for your team and guide delivery.
• Collaborate with product, design, and analytics in lifecycle.
• Ensure monitoring, on-call readiness, and reliability.
• Identify and solve technical and process issues.
• Improve code quality, reviews, and design standards.
• Mentor engineers and foster talent growth.

Skills

React Native

JavaScript

TypeScript

Leadership

Architectural design

Mobile development

Cross-functional collaboration

4+ years experience

Backend systems

Python

Kotlin

AWS

MySQL

Kubernetes

Education

Bachelor’s degree in a related field

Equivalent practical experience

Tools

CI/CD tooling

Kubernetes

React Native

Swift

Kotlin

Job description

Affirm is seeking a Senior Full Stack Software Engineer to join the Acquisition & Onboarding team. You will guide architecture across mobile, web, and backend systems, mentor engineers, and drive high-velocity delivery with a focus on reliability and user experience.

The role emphasizes collaboration with product, design, and analytics in a remote-first environment. You will influence technical strategy, write high-quality code, and help shape the first customer experience that builds trust and