Backend engineering (C#/.NET, Go, Java, Python) jobs in Canada

Senior Software Engineer - Cloud Partner Integrations

ClickHouse · Posted Nov 9, 2026

Open

Canada
Senior
8+ years

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Senior Software Engineer - Cloud Partner Integrations

ClickHouse · Posted Nov 9, 2026

Open

Canada
Senior
8+ years

Apply with Referso

Engineering Lead Post Booking Optimization - Toronto, ON

Flight Centre · Posted Nov 5, 2026

Open

Toronto, Ontario, Canada
Full-time
$110K–$145K per year
7+ years

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Lead the technical solution behind Post Booking Optimization, designing and building systems that monitor hotel reservations and air itineraries to secure better rates and fares for corporate travel programs.

Compensation

For this position, we anticipate offering an annual salary of $110,000 - $145,000. Base salary is dependent on relevant factors, including experience, geographic location, and job requirements.

Responsibilities

Own the end-to-end solution design for Post Booking Optimization across hotel and air
Own and maintain the architectural blueprint
Oversee the build and construction – design reviews, technical quality, and confidence that what is delivered matches what was designed
Act as the technical counterpart for engineering teams that contribute to Post Booking Optimization but sit outside the program
Drive integrations across partner platforms, including hotel and air content sources, mid-office, ticketing, and invoicing

Requirements

Degree in Technology, Engineering, or a related field preferred

Skills

software engineering architecture backend engineering distributed systems

Engineering Manager, Developer Infrastructure

Fullscript · Posted Nov 3, 2026

Open

Remote, Canada
Remote
Full-time · Manager

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We’re looking for a hands-on Engineering Manager to lead our backend infrastructure team. This role combines people leadership, technical direction, and project execution.

Responsibilities

Lead, coach, and develop engineers through clear expectations, regular feedback, career development, and performance management
Build a team culture grounded in ownership, collaboration, learning, and technical excellence
Own the team’s roadmap, balancing immediate developer needs, foundational improvements, and long-term application health
Guide technical direction for our Rails monolith, improving code structure, maintainability, scalability, reliability, and security
Lead foundational upgrades across Ruby, Rails, and related frameworks, coordinating migration and release plans with affected teams

Requirements

Nice to have: high-scale web applications
Nice to have: CI pipelines
Nice to have: test suites
Nice to have: feature flag systems
Nice to have: infrastructure-as-code

Skills

Ruby on Rails backend engineering software engineering management

Senior / Staff Engineer, Applied AI (Float Intelligence)

Float · Posted Nov 3, 2026

Open

Toronto, Ontario, Canada
Hybrid
Full-time · Senior
5+ years

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Building an agent that works as a chief financial officer for Canadian businesses. This involves building the foundation for AI agents, including the harness (memory, skills, tools, evals, observability) and the delivery interfaces.

Compensation

Competitive compensation, equity options, and benefits

Responsibilities

Ship agents that save customers real money and time. Take them from the first prototype to production at scale.
Build the unified harness: Context management, capabilities and tool use, evaluation, monitoring and observability.
Make agent actions safe to trust with a company’s money: Permissions, approvals, audit trails.
Define what good looks like and measure it: Offline evals, production monitoring of agent decisions.
Build the interfaces agents are delivered through: Chat, generative UI, and multiple channels.

Requirements

Nice to have: Experience as a founder
Nice to have: Founding engineer
Nice to have: Early engineer on a major initiative
Nice to have: Fintech experience
Nice to have: Payments experience

Skills

Applied AI LLM-backed systems Full-stack product engineering

Senior Backend Engineer, Integrations

Movable Ink · Posted Nov 3, 2026

Open

Toronto, Ontario, Canada
Full-time · Senior
CA$140K–CA$180K per year
6+ years

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A Senior Software Developer focused on building and maintaining integrations between systems and third-party APIs (email, mobile and push) to scale content personalization.

Compensation

The base pay range for this position is $140,000-$180,000 CAD/ year, which can include additional bonus depending on the position ultimately offered

Responsibilities

Contribute to Integration Architecture: technical vision, system boundaries, and architecture for services that integrate with 3rd party vendors.
Lead by Example: be a hands-on technical leader who contributes directly to high-impact work through design, implementation, code review, debugging, and production support.
Design and implement patterns that make it easy to add new integrations.
Collaborate with product and engineering teams to implement complex projects that require comprehensive and in-depth analysis.
Partner with the Engineering Manager and Product to turn ambiguous goals into clear technical plans, milestones, and incremental delivery paths.

Skills

backend engineering distributed services architectural judgment asynchronous processing

Senior Software Engineer - Cloud Partner Integrations

Senior Software Engineer - Cloud Partner Integrations

Responsibilities

Requirements

Skills

Benefits

Engineering Lead Post Booking Optimization - Toronto, ON

Compensation

Responsibilities

Requirements

Skills

Engineering Manager, Developer Infrastructure

Responsibilities

Requirements

Skills

Senior / Staff Engineer, Applied AI (Float Intelligence)

Compensation

Responsibilities

Requirements

Skills

Senior Backend Engineer, Integrations

Compensation

Responsibilities

Skills

Benefits

Benefits

Benefits

Benefits