Senior Full Stack Developer

Hewitt Banks; Toronto; Remote; CAD 170,000 - 180,000; Full time

Job summary

A leading fintech innovator is seeking a Senior Software Developer for a remote-first role. You will design and build impactful features across web and mobile platforms, utilizing technologies such as Ruby on Rails, Python, and AWS. The ideal candidate will have strong experience in scoping distributed systems and optimizing performance. This role offers the opportunity to mentor junior engineers and drive operational excellence.

Qualifications

• Proven experience scoping and building medium-to-large features for distributed systems.
• Strong proficiency in code reviews, troubleshooting, and performance optimization.
• Solid understanding of software design patterns and relational databases (SQL).
• Hands-on experience with frontend and backend frameworks, GraphQL, and Kafka.
• Familiarity with cloud platforms, Kubernetes, Temporal, DataDog, and mobile development.
• Experience in fintech or B2C applications is a strong plus.

Responsibilities

• Design, build, and maintain features across web and mobile applications.
• Ship projects leveraging technologies including Ruby on Rails, Python, Java/Kotlin, React, Angular, and AWS.
• Collaborate cross-functionally to deliver intuitive and delightful client experiences.
• Drive operational excellence, improve documentation, and mentor junior engineers.

Skills

Code reviews

Troubleshooting

Performance optimization

Frontend and backend frameworks

GraphQL

AWS

Tools

Ruby on Rails

Python

Java/Kotlin

React

Angular

Kubernetes

Kafka

Temporal

DataDog

Job description

Base pay range

CA$170,000.00/yr - CA$180,000.00/yr

Senior Software Developer (Full Stack)

Our client is on a mission to help everyone achieve financial freedom by reimagining how people manage money. Using smart technology, they make financial services transparent, low‑cost, and accessible to millions of users. With billions in assets under management, our client is one of Canada’s leading fintech innovators.

The Role

Our client is seeking a Senior Software Developer. This remote‑first position offers the opportunity to work across core product areas such as Banking, Investing, and Financial Systems, shipping impactful features across both web and mobile platforms. You’ll collaborate with designers, product managers, data scientists and fellow developers to solve complex challenges and deliver high‑quality, user‑centric software.

Responsibilities

• Design, build, and maintain features across web and mobile applications.
• Ship projects leveraging technologies including Ruby on Rails, Python, Java/Kotlin, React, Angular, and AWS.
• Collaborate cross‑functionally to deliver intuitive and delightful client experiences.
• Drive operational excellence, improve documentation, and mentor junior engineers.

Qualifications

• Proven experience scoping and building medium‑to‑large features for distributed systems.
• Strong proficiency in code reviews, troubleshooting, and performance optimization.
• Solid understanding of software design patterns and relational databases (SQL).
• Hands‑on experience with frontend and backend frameworks, GraphQL, and Kafka.
• Familiarity with cloud platforms, Kubernetes, Temporal, DataDog, and mobile development.
• Experience in fintech or B2C applications is a strong plus.