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Added 1 month ago
PC
Spécialiste DevOps / DevOps Specialist
Portage CyberTech
Gatineau, QC
- Full-time
Langages de script et d’automatisation tels que Python, Bash, PowerShell ou équivalents.
Added 2 months ago
G
Software Engineer, Full Stack
Gigi
Toronto, ON
- Full-time
We're hiring an AI Builder - a full stack software engineer - to join our engineering team in Toronto and own end-to-end feature development for Gigi, our AI agent.
Added 3 months ago
MH
Senior Full-Stack Automation Engineer - Gravity
MedMe Health
Remote, Canada
- $115,000 to $176,000 USD / year
- Full-time
- Remote
We are a lean, fast-moving pod. Because demand is outpacing our capacity, we need an engineer who doesn't just write code, but naturally takes extreme ownership - someone who can step up,…
Added 3 months ago
B
Senior Data Engineer
BrainStation
Toronto, Ontario
- $120,000 to $145,000 USD / year
- Full-time
As a Senior Data Engineer you’ll be tasked with designing, building, and maintaining scalable data platforms and pipelines. Your deep knowledge of data platforms such as Azure Fabric,…
Added 3 months ago
B
Data Engineer
BrainStation
Toronto, Ontario
- $90,000 to $125,000 USD / year
- Full-time
As a Data Engineer you’ll be tasked with designing, building, and maintaining scalable data platforms and pipelines. Your deep knowledge of data platforms such as Azure Fabric, Databricks,…
Added 3 months ago
FH
Senior Software Engineer - Fullstack
Function Health
Canada
- Full-time
Experience with Python, GCP & FastAPI a plus for future initiatives.
Added 3 months ago
PI
Data Platform Engineer
Princeton IT Services, Inc
Toronto, Ontario
- Full-time
Design and develop Snowflake-native applications including Snowpark (Python), stored procedures, tasks, streams, and dynamic tables to support day-end processing engines that run natively…
Added 3 months ago
PI
Backend Engineer
Princeton IT Services, Inc
Toronto, Ontario
- Full-time
Job Title: Backend Engineer Python (API & Platform Engineering)
Added 3 months ago
PI
Data Engineer
Princeton IT Services, Inc
Toronto, Ontario
- Full-time
We are building a modern data platform centered on Snowflake and are seeking a Snowflake-focused Data Engineer to design, build, and operationalize Snowflake-native solutions. This role…
Added 2 months ago
F
Data Engineer
Financeit
Remote, Canada
- Full-time
- Remote
We are looking for a skilled and detail-oriented Data Engineer to join our growing data team. In this role, you will be responsible for building and maintaining the data pipelines, models,…
Added 2 months ago
S
Senior DevOps Engineer
SimCorp
Toronto, ON
- Full-time
We are looking for a Senior DevOps Engineer to join our team at SimCorp. This role is pivotal in ensuring the seamless delivery, integration, and reliability of our cloud-based solutions.…
Added 4 months ago
ID
Sr Data Engineer -
iLink Digital
ON · East Toronto (Studio District), Ontario
- Full-time
We are seeking a highly skilled Databricks Engineer with
Added 2 months ago
AM
Lead SMU Validation Engineer - Data Center GPU
Advanced Micro Devices, Inc
Markham, ON
- Full-time
As an Lead SMU (System Management Unit) Validation Engineer in the Data Center and GPU Accelerated Processing Division, you will drive SMU hardware and power-management validation for AMD…
Added 1 month ago
Machine Learning Engineer, Safety and Customer Care AI
Lyft
Toronto, ON
As a Machine Learning Engineer on the SCC team, you will fine-tune and align models and build AI Agents that power how riders and drivers get help. Your work spans the full loop:…
Added 2 months ago
Q
DSP Systems Engineer, Staff
Qualcomm
Toronto, ON
- Full-time
We're looking for a Staff DSP Systems Engineer who brings strong technical fundamentals, a methodical approach to problem solving, and a genuine passion for high-speed signal processing.…
Added 1 month ago
Data Engineer
Lyft
Toronto, ON
As a Data Engineer on the SCC team, you will have ownership over the data modeling and pipelines that power SCC’s Associate and AI Agent Platform . Your efforts will be critical to the…
Added 2 months ago
C
Research Software Engineer (hybrid Montreal)
Calliere
Montreal, QC · Old Montreal, Quebec
- Full-time
Stand up quick analyses in Python/Jupyter to gauge signal quality, then convert what you learn into concrete system improvements.
Added 2 months ago
MT
Ingénieur principal en analogique/ Principal Engineer - Analog Design
Microchip Technology Inc.
Montreal, QC · Canada - Montreal
- Full-time
The Timing and Communication Group (TCG) at Microchip has an open vacancy for principal analog design engineer.
Added 2 months 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 2 months ago
Senior Principal Site Reliability Engineer
Questrade Financial Group
Toronto, ON
We’re looking for our next Senior Principal Site Reliability Engineer. Could It Be You?
Added 3 months ago
T
Principal AI Engineer - Tangerine
Tangerine
Toronto, Ontario
- Full-time
Extensive experience in Python and its core data science libraries (e.g., Scikit-learn, Pandas, NumPy, Matplotlib/Seaborn)
Added 3 months ago
F
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 3 months ago
F
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 4 months ago
T
Senior Software Engineer
Treewalk
Canada
- Full-time
…AI in the accounting and finance space. The Senior Software Engineer will be the hands-on architect and builder of the new systems shaping our business - and the technical counterpart to…
Added 3 months ago
BC
Senior Cloud Engineer - Google Cloud Platform (GCP)
BDO Canada
Toronto, Ontario
- Full-time
BDO Digital is looking for a Senior GCP Cloud Engineer to join their growing team. The individual will own the following responsibilities:

Fulfil

Senior Software Engineer (SDE II - Python) - Hybrid/Toronto

Remote, Canada

Remote

$180,000 to $200,000 CAD / year · Full-time

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Job details

Pay: $180,000 to $200,000 CAD / year
Job type: Full-time
Workplace: Remote
Posting language: English
Posted: Jul 14, 2026

Original job description

About the Role 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 Lead for Integrations. While we have a small team in Toronto today, you will be one of the early senior engineering hires here. 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: Toronto, ON (in-office during onboarding; hybrid 3 days/week in office after) Type: Full-Time Expected Start Date: Immediately Compensation: $180,000 - $200,000 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 improve systems.

Requirements

The role requires 4-6 years of experience in 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
Technical Design
Problem Solving
Customer Support

Remote locations

Toronto, Canada

Remote locations (standardized)

Toronto, Ontario, Canada

Visa sponsorship

Not detected in the job text

Keywords

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

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