Senior Software Developer, Build Platform
Wealthsimple
Software Engineering
Remote
Posted on Nov 21, 2025
Your career is an investment that grows over time!
Wealthsimple is on a mission to help everyone achieve financial freedom by reimagining what it means to manage your money. Using smart technology, we take financial services that are often confusing, opaque and expensive and make them transparent and low-cost for everyone. We’re the largest fintech company in Canada, with over 3+ million users who trust us with more than $100 billion in assets.
Our teams ship often and make an impact with groundbreaking ideas. We're looking for talented people who keep it simple and value collaboration and humility as we continue to create inclusive and high-performing teams where people can be inspired to do their best work.
About the Build Platform Team
At Wealthsimple, the Build Platform team is on a mission to make developing great software fast, intuitive, and enjoyable. We believe engineers should focus on building incredible features for our clients, not fighting their environment. Our job is to clear the path. We do this by treating our platform as a product. Our internal developers are our customers, and their success is our primary measure of impact.
As a Developer on our team, you won't just be building tools; you'll be shaping the entire developer journey at Wealthsimple. From their first day onboarding to their thousandth code submission, you'll be making the experience seamless. You will support a diverse engineering organization that uses Ruby, Python, Kotlin, and TypeScript to build the future of finance. Your work will directly empower hundreds of developers to ship high-quality, secure code to millions of users with confidence and speed.
In this role you’ll have the opportunity to:
- Pioneer new ways to improve developer productivity by leveraging emerging technologies like AI to optimize workflows, improve test coverage and reduce friction in the development lifecycle.
- Shape the next generation of our development environments. A key focus will be on rolling out and enhancing containerized development environments across hundreds of services to drastically reduce setup time, eliminate "works on my machine" issues, and create a consistent, powerful local development experience for all engineers.
- Modernize core internal libraries and tooling. This includes improving our command-line interface to automate developer machine setup, sunsetting legacy tools in favor of safer, auditable alternatives, and evolving the shared libraries that underpin our microservices architecture.
- Define and measure operational excellence at scale. You'll help build automated scorecards that give every team clear, actionable insights into the health of their services, covering everything from dependency management to monitoring and scalability.
- Elevate our testing infrastructure. You'll get to evolve how our teams test complex systems, such as by building robust backend mocking solutions to increase end-to-end test stability and by enabling isolated testing of asynchronous, event-driven workflows in ephemeral environments.
- Champion engineering best practices by partnering with teams across Wealthsimple to deliver platform improvements that increase their velocity and confidence.
What you’ll bring:
- 7+ years of experience in software development as part of a team, preferably a platform-oriented team.
- 7+ years experience with any of the following: Ruby, Python, Typescript, Kotlin.
- Experience designing, building, and maintaining internal libraries, frameworks, or tooling used by other engineering teams.
- A forward-thinking mindset and a passion for applying modern technology. You're naturally curious about the latest industry trends and are always exploring how they can be used to create a best-in-class development experience.
- Curiosity and a deep interest in a fast, reliable, streamlined developer experience. You're driven to understand your users, eliminate complexity, and build elegant solutions to their pain points.
- A collaborative spirit and a passion for mentorship. You believe in making your colleagues successful and enjoy coaching other developers.
- A data-informed approach to decision-making. You are comfortable using metrics to identify opportunities and measure the impact of your work.
Why Wealthsimple?
🤑 Competitive salary with top-tier health benefits and life insurance
📈 Retirement savings matching plan using Wealthsimple for Business
🌴 20 vacation days per year and unlimited sick and mental health days
📚 Up to $1,500 per year towards wellness and professional development budgets respectively
🛫 90 days away program: Employees can work internationally in eligible countries for up to 90 days per calendar year
🌎 A wide variety of peer and company-led Employee Resource Groups (ie. Rainbow, Women of Wealthsimple, Black @ WS)
💖 Company-wide wellness days off scheduled throughout the year
We’re a remote-first team, with over 1,000 employees coast to coast in North America. Be a part of our Canadian success story and help shape the financial future of millions — join us!
Technology & Innovation at Wealthsimple
We believe the future belongs to those who innovate boldly. At Wealthsimple, every team member is expected to lean into new technologies, including AI, and tooling to rethink how we work, solve problems faster, and create even greater value. We're looking for people who are not just comfortable with change but energized by it. Our commitment is to build a company that evolves at the pace of the world around us, and we want you to help lead that future.
DEI Statement
At Wealthsimple, we are building products for a diverse world and we need a diverse team to do that successfully. We strongly encourage applications from everyone regardless of race, religion, colour, national origin, gender, sexual orientation, age, marital status, or disability status.
Accessibility Statement
Wealthsimple provides an accessible candidate experience. If you need any accommodations or adjustments throughout the interview process and beyond, please let us know, and we will work with you to provide the necessary support and make reasonable accommodations to facilitate your participation. We are continuously working to improve our accessibility practices and welcome any feedback or suggestions on how we can better accommodate candidates with accessibility needs.
