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Principal Backend Developer
@ Toast
Toronto, Ontario
SIGNALS
Overview
Toast is recruiting for a Principal Backend Developer for an early-stage sports and casino sweepstakes company in Toronto, on a full-time contract, hybrid with a Yorkville office and reporting to the CTO. The role owns architecture for systems that ingest, transform and serve customer and trading data, building real-time pipelines and APIs mostly in Python. Requires 3+ years of backend experience, end-to-end data system design, daily AI coding tool use, and AWS and Kubernetes knowledge.
Responsibilities:
- Own architecture for customer and trading data systems
- Build real-time data pipelines and APIs
- Develop data normalization algorithms
- Maintain order flow management systems and dashboards
- Automate repetitive work across teams
Requirements summary:
- 3+ years backend development with strong Python
- Proven end-to-end data system design
- Daily use of AI coding tools
- Working knowledge of AWS and Kubernetes
- Experience with robust API integrations
- Self-starter in a fast-moving startup
Tools & skills
Source and dates
Source type not verified · apify-linkedin
- Employer posting date
- 2026-10-14
- First seen by our source
- 2026-11-15
- Source record updated
- 2026-11-15
These dates describe the source record, not a live verification that the employer is still hiring. Check the original posting.
Job details
| Seniority | Lead |
| Department | Software development |
| Experience | 3+ years |
| Hours per week | 40 (estimated) |
| Travel | air: none · ground: none |
| Work setting | Office, Home |
| Position | Mostly sitting |
| Physical demands | physical low · computer high |
| Languages | English |
| Perks mentioned | Free or discounted meals, Home office allowance |
Summary and details written by AI from the posting; the employer’s posting is the authority.
Toast
| Field | Value |
|---|---|
| Open jobs on Jobsy | 28 |
Job description
Job Description
Toast is recruiting on behalf of an early-stage sports and casino sweepstakes company for a Principal Backend Developer based in Toronto (hybrid), reporting directly to the CTO. This is a full-time contract role. The platform was originally built and funded by a quantitative sports betting fund over six years ago, and today the team is modernizing bookmaking with tools that optimize operations and drive efficiency. Their newest product is a sports and casino sweepstakes platform that is in early development and moving quickly toward an ambitious vision. The team is small, made up of sports fans and builders, and this hire will own the architecture behind the systems that ingest, transform, and serve customer and trading data.
Responsibilities
Toast is recruiting on behalf of an early-stage sports and casino sweepstakes company for a Principal Backend Developer based in Toronto (hybrid), reporting directly to the CTO. This is a full-time contract role. The platform was originally built and funded by a quantitative sports betting fund over six years ago, and today the team is modernizing bookmaking with tools that optimize operations and drive efficiency. Their newest product is a sports and casino sweepstakes platform that is in early development and moving quickly toward an ambitious vision. The team is small, made up of sports fans and builders, and this hire will own the architecture behind the systems that ingest, transform, and serve customer and trading data.
Responsibilities
- Own the architecture and design of systems that ingest, transform, and serve customer and trading data
- Build high-performance, real-time data pipelines and the APIs that power them
- Develop data normalization algorithms and keep integrations running seamlessly
- Maintain and improve order flow management systems and dashboards
- Automate repetitive work to reduce manual effort across teams
- Use AI-assisted development as the default workflow, choosing the right tool for each problem with most of the codebase in Python
- Treat system architecture and design as a top engineering priority and help set standards as the product grows
- 3+ years of backend software development experience with a strong understanding of Python
- Proven experience designing and building an end-to-end system that consumes, transforms, and serves data, with the ability to walk through its architecture and tradeoffs
- Daily use of AI coding tools, with the judgment to review and own what they produce
- Working knowledge of AWS and Kubernetes
- Experience building and maintaining robust API integrations
- A self-starter who works autonomously and thrives in a fast-moving startup environment
- Experience with streaming systems such as Kafka or Kinesis would be a plus
- Sports betting or iGaming experience is considered an asset
- Experience with CRM system integration would be a plus
- Full-time contract compensation for a principal-level backend role
- Workstation stipend to set up your ideal home and office setup
- Hybrid flexibility with a central Yorkville office in Toronto
- Team lunches and dinners, darts tournaments, and live sports on TV
- Real ownership from day one, with direct influence on product direction as one of the earliest engineers on a brand new platform
- Build the data backbone of a product that is modernizing how bookmaking operates, turning six years of quantitative sports betting infrastructure into tools that cut manual work and power real-time trading decisions
- Shape engineering standards on an AI-forward team where architecture and design come first
- Application Review
- Vetting Call
- Profile Creation
- Client Submission
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