Senior Software Developer, Edge

Senior Software Developer, Edge at Wealthsimple

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 and expensive and make them transparent and low-cost for everyone. We’re the largest fintech company in Canada, with 3+ million users who trust us with more than $100 billion in assets. And we’re just getting started.

We’re looking for a someone who thinks big, sweats the small stuff and keeps things simple. You’ll join a high-bar, fast-paced team where people are trusted to own their work, communicate openly, and ship things that improve our clients’ lives. Collaboration, humility, and an obsession over quality are how we get stuff done.

The Edge team sits at the intersection of Wealthsimple's backend ecosystem and our client applications. We own the GraphQL gateway and the public API, along with the tooling, patterns, and best practices that help all our product developers ship features quickly and reliably. Reporting to a Senior Manager of Software Development, you'll work alongside developers and cross-functional partners to shape our APIs and how data flows through our systems. This year, we're leading Wealthsimple's migration from schema stitching to GraphQL Federation—a foundational shift that will make our gateway faster, more predictable, and essentially maintenance-free.

We're looking for a Senior Software Developer, Edge who can guide complex technical initiatives across the finish line while making other developers more effective. You'll help us implement our big project this year, GraphQL Federation architecture. We need someone who can lead delivery, partnering with teams across the company to migrate dozens of services to a federated model. You'll balance hands-on coding with technical leadership, unblocking teams, refining our approach as we learn, and ensuring we ship a gateway that product teams never have to think about.

In this role, you’ll have the opportunity to

• Contribute to our GraphQL Federation migration, working with GraphQL Mesh and Hive Gateway to move services from schema stitching to a fully federated supergraph
• Build and improve automation tooling, including AI-assisted migration scripts, that accelerates schema transformations
• Partner with backend teams to help them adopt federation patterns and resolve technical blockers
• Improve gateway performance and observability, contributing to our shared GraphQL libraries
• Create documentation and share knowledge that helps product teams adopt patterns without needing specialized expertise
• Mentor junior team members and participate in code reviews that raise the bar for API quality

What You’ll Bring

• Strong experience with GraphQL, including schema design and performance considerations
• Familiarity in API design patterns across REST and GraphQL, with the ability to provide direction on how internal and client-facing APIs should evolve, what standards to adopt, and when to break from them
• A track record of delivering technical work that spans multiple services, with the ability to coordinate dependencies and maintain momentum
• Solid software development fundamentals, with experience building and maintaining production systems. Experience with Ruby or Node.js is a plus
• Clear communication skills and a collaborative approach—you bring people along through documentation and genuine partnership
• A pragmatic approach to technical decisions, balancing ideal solutions with shipping impact

Compensation & Equity

🤑 Base salary range: For this role, candidates located in Canada can expect a base salary range of CAD $151,200 - $189,000. 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.

🚀 Total compensation: In addition to base salary, this role includes equity compensation. We use clear job levels and market-based salary bands to ensure compensation is fair and consistent across the company.

Why Wealthsimple?

• 📈 Retirement savings matching plan using Wealthsimple for Business
• 🌴 Generous PTO offerings
• 👥 A wide variety of peer and company-led Employee Resources Groups (e.g., Rainbow, Women of Wealthsimple, Black @ WS)
• 🌎 We’re a remote first team with over 1,500 employees across North America - and one of the best things about working here is the people. You’ll be collaborating with incredibly talented, curious, and driven teammates who care deeply about doing great work.

Be a part of our Canadian success story and help shape the financial future of millions.

Read our Culture Manual and learn more about how we work.

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. At Wealthsimple, we want interviews to feel like genuine conversations. To support this, we use AI transcription during recruiter interviews. This allows recruiters to be fully engaged, ask thoughtful follow-up questions, and ensure your experiences are captured accurately. You’ll always have the choice to opt in or out before we begin. We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.

Key skills/competency

• GraphQL
• API Design
• Software Development
• Technical Leadership
• Ruby / Node.js
• System Architecture
• Data Flow Management
• Automation Tooling
• Mentorship
• Production Systems