Backend Development (Senior)

Reposted 3 Days Ago
Be an Early Applicant
Toronto, ON
In-Office
70-70 Annually
Mid level
Fintech • Payments • Software • Financial Services
The Role
Design and maintain backend systems for financial workflows, ensuring reliability and correctness. Collaborate with teams to handle edge cases and scale challenges.
Summary Generated by Built In
About Float

Float is on a mission to simplify finance for Canadian businesses, empowering them to eliminate complexity and unlock new opportunities. Through our innovative platform, Float enables businesses to streamline financial operations and optimize cash flow, so they can focus on what matters most: growth. 

As one of Canada’s fastest growing companies and top-rated startups in 2024 and 2023, Float is customer-obsessed, passionate and entrepreneurial, with a team that includes leaders from Uber, Shopify, Top Hat, TouchBistro, Bill, Stripe, and Ada.

At Float, everyone is an owner, bringing their unique perspective to our team and product. Your voice is important, and we take having a culture based on feedback seriously. We openly share our thoughts and differing opinions so we can continue to improve. We do our best to keep our decision-making decentralized so that all team members feel ownership in our success.

Our Product

Float is Canada's complete business finance platform, combining modern financial services and software to help businesses spend, save, and grow. Trusted by 5000+ Canadian companies, Float provides high-limit corporate cards, automated expense management, next-day bill payments, high-yield accounts and fast, friendly support—all built in Canada, for Canada. Float is backed by world-class venture and fintech investors, including Growth Equity at Goldman Sachs Alternatives and OMERS Ventures, partners behind our $70 million Series B raise

Our team is a collection of ambitious, collaborative and mission-driven people from all walks of life but with one goal: helping Canadian companies not just survive but thrive. And we’re looking for bold innovators to help shape the future of business finance in Canada.

AI Use in Our Hiring Process

We use technology, including artificial intelligence (AI), to support parts of our hiring process. This may include AI-assisted scheduling and candidate communications, and AI-generated interview notes, guides or summaries to help our team focus on the conversation. All hiring decisions are made by our hiring team.

About the Role

This role sits within Float’s Financial Products (FinProd) group, where we design and operate backend systems that move money and manage financial state. These systems power core capabilities such as bill pay and other financial workflows, where correctness, reliability, and trust are non-negotiable.

We are hiring across multiple levels for this role. Our interview process is designed to assess candidates objectively based on impact, judgment, and learning velocity, and we will level accordingly. As Float continues to grow, this team offers meaningful opportunities to take on increasing scope, ownership, and technical leadership over time.

This role is well-suited for developers who enjoy systems thinking, complex domains, and treating software development as a craft rather than just shipping CRUD.

What You’ll Be Doing
  • Design and maintain backend systems that support money movement and financial workflows.

  • Model complex data and state transitions with a strong focus on correctness and invariants.

  • Build and evolve distributed systems, including asynchronous workflows, retries, and failure handling.

  • Anticipate edge cases and scale challenges before they become production issues.

  • Apply disciplined testing and validation practices for high-blast-radius changes.

  • Partner with Product, Frontend, and Platform teams to deliver reliable customer outcomes.

  • Take ownership of systems in production, including reliability and post-incident learning.

What Success Looks Like (6–12 Months)
  • You own or meaningfully contribute to critical backend domains with high reliability and trust.

  • Financial workflows you work on scale cleanly as usage grows.

  • You surface and address edge cases early, reducing incidents and rework.

  • Teammates trust your judgment on complex system design and correctness.

  • Your work raises the quality bar for backend engineering at Float.

What We’re Looking For
  • Experience building backend systems beyond basic CRUD patterns.

  • Comfort reasoning about data flow, state transitions, and distributed system trade-offs.

  • Solid database fundamentals, including transactional integrity and performance at scale.

  • An ownership mindset for systems running in production.

  • Curiosity and adaptability — language or framework experience matters less than how you think.

  • Bonus: exposure to financial systems, ledgering, payments, or high-scale transactional platforms.

Our Hiring Philosophy
  • Values > Aptitude > Skills

  • Slope > Intercept

  • Collective Bar Raising

We hire for character, curiosity, and learning velocity before credentials. Titles matter less than impact, and every hire is expected to raise the bar for Float as a whole.

Why You Should Join
  • Work at one of Canada's fastest-growing fintech companies

  • Make a real impact in a high-autonomy, high-growth role

  • Collaborate with an ambitious and supportive team

  • Competitive compensation, equity options, and benefits

  • Hybrid work model – we are based in Toronto with in-office days for connection and collaboration

  • Enjoy catered team lunches every Tuesday, Wednesday and Thursday

  • Bring your pup to our dog-friendly office

  • Thrive in a high-trust, high-performance culture where your work truly matters

In Short

At Float, you’ll thrive if you’re bold, curious, and eager to make a real impact. We're building something special—and having a lot of fun along the way. If you’re excited to build, grow, and win together, we’d love to meet you.

We’re committed to building a workplace that’s welcoming and accessible for everyone. If you need any accommodations during the hiring process or once you join Float, just let us know! You can reach out to Vic ([email protected]), and we’ll work with you to make sure you have what you need to succeed.

Top Skills

Backend Systems
Database Fundamentals
Distributed Systems
Financial Systems
Am I A Good Fit?
beta
Get Personalized Job Insights.
Our AI-powered fit analysis compares your resume with a job listing so you know if your skills & experience align.

The Company
HQ: Toronto, Ontario
173 Employees
Year Founded: 2019

What We Do

Float is on a mission to simplify spend for companies and teams. Our corporate cards and spend management platform enable you to: - Eliminate employee reimbursements and expense reports - Seamlessly pre-approve credit card expenses through Slack or the Float app - Automatically collect receipts - Integrate with accounting software to close your books faster - Manage CAD and USD card spend in one platform And much more. Learn why thousands of Canadian businesses use and love Float to manage their business spend

Similar Jobs

Citi Logo Citi

Technical Lead

Fintech • Financial Services
In-Office
Mississauga, ON, CAN
223850 Employees
121K-171K Annually

Square Logo Square

Senior Data Scientist

eCommerce • Fintech • Hardware • Payments • Software • Financial Services
Remote or Hybrid
8 Locations
12000 Employees
168K-297K Annually

Square Logo Square

Strategic Account Manager

eCommerce • Fintech • Hardware • Payments • Software • Financial Services
Remote or Hybrid
8 Locations
12000 Employees
108K-203K Annually

Square Logo Square

Strategic Account Manager

eCommerce • Fintech • Hardware • Payments • Software • Financial Services
Remote or Hybrid
8 Locations
12000 Employees
108K-203K Annually

Similar Companies Hiring

Scotch Thumbnail
Software • Retail • Payments • Fintech • eCommerce • Artificial Intelligence • Analytics
US
25 Employees
Milestone Systems Thumbnail
Software • Security • Other • Big Data Analytics • Artificial Intelligence • Analytics
Lake Oswego, OR
1500 Employees
Fairly Even Thumbnail
Software • Sales • Robotics • Other • Hospitality • Hardware
New York, NY

Sign up now Access later

Create Free Account

Please log in or sign up to report this job.

Create Free Account