Senior Software Developer, Edge

Build something people love
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 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.

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.

The Edge team sits at the intersection of Wealthsimple's backend ecosystem and our client applications. We own the Graph

QL 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 Graph

QL Federation—a foundational shift that will make our gateway faster, more predictable, and essentially maintenance-free.

We're looking for a Sr Software Developer 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, Graph

QL 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 Graph

QL Federation migration, working with Graph

QL 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 Graph

QL 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 Graph

QL, including schema design and performance considerations

Familiarity in API design patterns across REST and Graph

QL, 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

Why Wealthsimple?
Top-tier health benefits and life insurance

Long-term group savings with employer match using our Wealthsimple for Business platform

20 vacation days + 4 wellness days per year, and unlimited sick and mental health days

✈️ 90 days away program:
Employees can work outside of Canada for up to 90 days per calendar year

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…