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Added 9 days ago
Senior Machine Learning / AI Engineer
INETCO Systems Ltd.
Vancouver, BC
Full-time
We are looking for a Senior Machine Learning / AI Engineer to help design, build, test and deploy machine learning and AI-based systems for our BullzAI product line.
Added 1 day ago
Senior Software Engineer- Applied AI
Morningstar
Toronto, ON
Full-time
We are seeking a Senior Software Engineer to build the applied systems that bring AI capabilities into production: the data pipelines, LLM integrations, agentic workflows, tool interfaces,…
Added 3 months ago
Senior Full Stack AI Engineer
Ombud
Quinte West, Ontario
Code review and technical mentorship within a small, senior engineering team.
Added 1 month ago
Senior Consultant, ML/AI Engineer, Data & AI
KPMG
Calgary, AB · Vancouver, BC · ON · Toronto, Ontario
Full-time
Are you a technically strong and business‑oriented Machine Learning / AI Engineer with a passion for building and scaling intelligent solutions? Our team is looking for a hands‑on engineer…
Added 5 months ago
Senior Consultant, ML/AI Engineer, Data & AI
KPMG
Vancouver, BC
Full-time
Are you a technically strong and business‑oriented Machine Learning / AI Engineer with a passion for building and scaling intelligent solutions? Our team is looking for a hands‑on engineer…
Added 12 days ago
Senior Software Engineer - Evisort AI (Python/Typescript)
Workday
Remote, Canada
Full-time · Remote
Evisort Engineering is growing! As a Senior Backend Software Engineer, you'll join a collaborative, cross-functional team working to enhance and expand our AI-driven contract management…
Added 1 month ago
Senior Lead Systems Engineer, AI & Automation
Braze
Toronto, ON
Full-time
We're looking for a Senior Lead Systems Engineer who's passionate about building the next generation of enterprise technology through automation, software engineering, AI, and intelligent…
Added 1 month ago
Senior Lead Systems Engineer, AI & Automation
Braze
Toronto, ON
We're looking for a Senior Lead Systems Engineer who's passionate about building the next generation of enterprise technology through automation, software engineering, AI, and intelligent…
Added 5 months ago
Senior Data Engineer - Gen AI
LTM
Ontario · Ontario, Canada
$100,000 to $110,000 USD / year
Full-time
o Strong programming proficiency in Python is a must including extensive experience with libraries such as Pandas NumPy scikitlearn PyTorch TensorFlow Transformers FastAPI Seaborn LangChain…
Added 19 days ago
Senior Backend Engineer .NET & Python
PosiTrace
Vancouver, BC
$110,000 to $145,000 CAD / year
Full-time
We're migrating toward MACH (Microservices, API-first, Cloud-native, Headless) and need a senior backend engineer to co-own that evolution.
Added 3 months ago
Senior Machine Learning Engineer, AI Generation Engine
SandboxAQ
Remote, Canada
$119,000 to $210,000 CAD / year
Full-time · Remote
…AI, chemistry, cybersecurity, physics, mathematics, medicine, engineering, and other specialties. The company emerged from Alphabet Inc. as an independent, growth capital-backed company in…
Added 18 days ago
Senior Manager, Data Engineer, Applied AI Data Ingestion & Integration
BMO
Toronto, ON · FCP
Full-time
…cloud-native capabilities and AI solutions. Our team combines engineering excellence with cutting-edge AI to deliver scalable, secure, and responsible solutions that power business…
Added 6 days ago
Senior Machine Learning Engineer –AI & Agentic Systems
Project X
Toronto, ON
Full-time
Advanced Python development with strong production software-engineering practices (testing, CI/CD, Git)
Added 2 days ago
Senior Forward-Deployed AI Engineer
Bell
Toronto, ON
Strong software engineering foundation, including Python, APIs, and integration with production enterprise systems.
Added 2 months ago
Senior Software Engineer (SDE II - Python) - Hybrid/Toronto
Fulfil
Remote, Canada
$180,000 to $200,000 CAD / year
Full-time · Remote
Fulfil is hiring a Senior Software Engineer (Python Backend) in Toronto to become a key technical partner for our North American customers, our India-based engineering team, and our Product…
Added 2 months ago
Senior Software Engineer (SDE II - Python) - Remote/Canada
Fulfil
Remote, Canada
$160,000 to $180,000 CAD / year
Full-time · Remote
Fulfil is hiring a Senior Software Engineer (Python) for a Remote role (Canada) Toronto to become a key technical partner for our North American customers, our India-based engineering team,…
Added 27 days ago
Senior Artificial Intelligence Platform Engineer, AI Platform & Fabrics
BMO
Toronto, ON · BMOPLACE
Full-time
…AI safe, governed, and scalable. We are seeking experienced Senior Engineers to help build and operate the core infrastructure that governs how AI runs at BMO: the AI Gateway, Policy…
Added 17 days ago
Senior Software Engineer, Full-Stack Applications - AI Innovation Teams
Fitch Group
Toronto, ON
…and we're building teams that combine exceptional full-stack engineers with world-class ML engineers. As a Senior Software Engineer, you'll own critical components of the applications and…
Added 2 months ago
Senior DevOps Engineer, for AI-based Systems
Oncoustics
Toronto, Ontario
Full-time
…institutional investors and have deep partnerships in place with several major ultrasound and pharmaceutical players. We are looking to hire a Senior DevOps Engineer to join our team and…
Added 6 days ago
Senior Quality Engineer – Test Automation, AI Testing & Java/Python
Astra-North Infoteck Inc. ~ Conquering today’s challenges, achieving tomorrow’s vision!
Toronto, ON
Full-time
Quality Engineer – Test Automation, Java/Python & GenAI
Added 1 month ago
Senior Staff Backline Engineer - Data & AI
Databricks
Vancouver, BC
The Backline Engineering Team serves as the critical bridge between Frontline Support and Engineering. We handle complex technical issues and escalations across the Data and AI ecosystem.…
Added 17 days ago
Software Engineer, Professional Senior (Android + NFC/RFID +AI )
Zebra Technologies
Mississauga, ON
Full-time
The Engineering Customer Response Team (ECRT) is seeking a Senior Software Engineer to provide world-class technical support to global enterprise customers for the Android Operating System,…
Added 16 days ago
AI Inference Core - Senior SW Engineer for Platform & DevOps
Cerebras
Toronto, ON
Full-time
We value strong systems fundamentals, independent problem solving, and sound engineering judgment more than familiarity with any particular infrastructure product.
Added 1 day ago
Senior Software Engineer – Full Stack (AI First)
Precisely International Jobs
Canada
We are seeking an experienced and technically strong Senior Software Engineer to join our Master Data Management (MDM) product line within Precisely’s Data Integrity Suite. In this role,…
Added 1 month ago
Senior Software Engineer, Full-Stack Applications (Python & React)
Fitch Group
Toronto, ON
…that support core business capabilities, partnering closely with engineers, product managers, and business stakeholders. We are looking for a highly experienced software engineer with deep…

Fulfil

Senior Software Engineer (SDE II - Python) - Remote/Canada

Remote, Canada

Pay: $160,000 to $180,000 CAD / year
Job type: Full-time
Workplace: Remote
Posting language: English
Posted: Jul 14, 2026

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Original job description

About the Role Fulfil is hiring a Senior Software Engineer (Python) for a Remote role (Canada) Toronto to become a key technical partner for our North American customers, our India-based engineering team, and our Product Lead for Integrations. While we have a small team in Toronto today, you will be one of the early senior engineering hires in Canada. Your impact will be outsized, and you’ll help shape how Fulfil builds, supports, and scales engineering in North America. You will own integrations (3PLs, carriers, sales channels, and merchant-specific operational logic) end-to-end: scoping, designing, building, reviewing, deploying, supporting, and improving production systems used by high-growth commerce brands. You will work across product engineering, integrations, support, implementation, and customer-facing technical problem-solving. Fulfil does not operate with a traditional product management layer, so our best engineers are expected to think deeply about the customer problem, make sound product judgments, and build solutions that scale. This is a high-autonomy role for someone who wants to be close to the business, the code, and the customer. Why Fulfil Fulfil is a technical founder-led, bootstrapped company in our 11th year of operations. We're a small team of exceptional engineers powering millions of orders for brands like HexClad, Ridge Wallet, and Caraway. No red tape. No product managers. No layers of approval. You'll own critical systems, make architectural decisions, and work directly with merchants- sometimes in their warehouses too. You'll ship to production in your first two weeks. You'll work directly with our Product Support team, who talk to merchants daily. They bring you real problems, you propose solutions, you ship. No PRDs. No one translating customer pain through three layers of abstraction. At a large company, senior engineers write docs and attend meetings. Here, you'll design systems that process millions of transactions monthly and ship them yourself. The Team The Integrations team connects Fulfil to Shopify, Amazon, marketplaces, 3PLs, carriers, and EDI. We process thousands of orders per minute. Mission: integrations are reliable, scalable, debuggable by customers, and fast to build. Location: Remote Canada (some in person travel during onboarding) Type: Full-Time Expected Start Date: Immediately Compensation: $160,000 - $180,000 CAD What You’ll Do Build Production-Grade Integrations: Design, build, and maintain Python integrations across commerce, logistics, finance, and fulfillment workflows, including 3PLs, carriers, sales channels, and merchant-specific operational logic. Own the Full Lifecycle: Take work from customer problem to technical design, implementation, code review, deployment, production support, and continuous improvement. At Fulfil, raising the PR is not the finish line. Solve Real Customer Problems: Work directly with customers, support, and implementation teams to diagnose issues, understand operational workflows, and identify product gaps. You’ll translate messy real-world problems into durable technical solutions. Raise the Engineering Bar: Partner with our India-based engineering team on architecture, code quality, reviews, reliability, and maintainability. “It works” is not enough; the code needs to be understandable, supportable, and scalable. Scale North American Engineering Coverage: Help create stronger EST technical coverage for merchant escalations, integration support, and customer-facing discovery as Fulfil builds its Toronto engineering presence. Turn Patterns Into Product: Identify recurring integration needs and customer pain points, then turn one-off solutions into scalable product capabilities. Use AI Thoughtfully: Use AI tools as a force multiplier for engineering velocity while maintaining strong judgment, review discipline, and code quality. Work Close to Leadership: Collaborate with technical leadership, including our founder/CEO, on product and engineering decisions where the best answer is not always obvious. A Typical Week Monday: Lead design review for re-architecting the integration framework. Goal: reduce time-to-build from weeks to days. Tuesday: Build the core framework. Test by migrating an existing carrier integration. Validate it handles 2000 shipments/minute. Wednesday: Call with a merchant's technical team. They're setting up EDI with a major retailer. Design the solution together. Thursday: Code review for two SDE-IIs on new channel integrations. Guide them on idempotency, retry patterns, rate limiting. Friday: Ship the new framework. Watch an SDE-II build a new 3PL integration in 3 days instead of 3 weeks. What You'll Own Order processing architecture: allocation, routing, splitting Inventory system reliability at scale WMS scalability for high-SKU warehouses Technical direction (with Product Lead) Mentoring engineers What We're Looking For 4-6 years building backend systems Systems that process millions of transactions Expert Python, large codebases Deep PostgreSQL: partitioning, query planning, performance Strong debugging across services Clear communication with technical and non-technical people Tech Stack Python, PostgreSQL, Redis, Celery, RabbitMQ, SQLAlchemy, Kubernetes, pytest, Claude Code

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More about this job

Responsibilities

You will design, build, and maintain Python integrations across various workflows, owning the full lifecycle from customer problem to production support. Additionally, you will work closely with customers and teams to diagnose issues and translate them into technical solutions.

Requirements

The role requires 4-6 years of experience building backend systems, with expertise in Python and PostgreSQL. Strong debugging skills and clear communication with both technical and non-technical stakeholders are essential.

Skills

Python
PostgreSQL
Redis
Celery
RabbitMQ
SQLAlchemy
Kubernetes
pytest
Debugging
Communication
Integration
Architecture
Code Quality
Scalability
Technical Design
Problem Solving

Remote locations

Canada

Remote locations (standardized)

Canada

Visa sponsorship

Not detected in the job text

Keywords

Python
PostgreSQL
Redis
Celery
RabbitMQ
SQLAlchemy
Kubernetes
pytest
Debugging
Integration
Architecture
Code Quality
Scalability
Technical Design
Problem Solving
E-commerce
Logistics

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