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Added 3 months ago
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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
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Senior Software Engineer
Treewalk
Canada
- Full-time
We're building custom internal systems at the cutting edge of agentic AI in the accounting and finance space. The Senior Software Engineer will be the hands-on architect and builder of the…
Added 3 months ago
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Regulatory Operations Test Engineer
LTM
Ontario · Ontario, Canada
- $100,000 to $110,000 USD / year
- Full-time
Data Analysis: SQL Expertise Develop and Execute Test Plans Create and implement detailed test plans to ensure software and systems meet regulatory standards specific to the insurance…
Added 6 months ago
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Software Engineer, Product / Mobile
Bree
Toronto, Ontario
- Full-time
Have worked with AWS serverless (Lambda/SQS) or equivalent event-driven systems.
Added 2 months ago
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AI Solutions Engineer
Thales
Ottawa, ON
- Full-time
The AI Solutions Engineer will bridge the gap between traditional mission-critical software engineering and next-generation autonomous decision support in the context of Land C4ISR under…
Added 2 months ago
MT
Principal DSP Firmware Engineer
Microchip Technology Inc.
Ottawa, ON · Canada - Ottawa - March Road
- Full-time
Knowledge of embedded software or firmware, real-time operating systems (RTOS), and hardware/software interactions.
Added 1 month ago
AI and Data - Manager - AI Engineer
EY
Toronto, ON
As AI Engineer, you will design and build production-grade AI and agentic AI solutions that solve real business problems for EY's clients. You are the core builder on the delivery team,…
Added 2 months ago
C
Sr. AI Engineer – Agentic Systems
Chubb
Toronto, ON
- Full-time
The profile can come from either direction: a software engineer who has moved into AI systems, or an AI engineer with strong systems fundamentals. Either way we expect engineering…
Added 1 month ago
AI and Data - Senior Consultant - AI/ML Engineer
EY
Toronto, ON · Montreal, QC
Strong understanding of testing methodologies and frameworks for AI systems, including bias testing, performance testing, and security testing.
Added 3 months ago
MI
MultiX Innovations - CTO / Technical Co-Founder
MultiX Innovations
Remote, Canada
- Full-time
- Remote
…standard, not reinventing it. Already purpose built for easy integration /…
Added 3 months ago
ST
Design Release Engineer – Wiring (Junior)
SEGULA Technologies
Windsor, Ontario
- Volunteer
We are seeking a motivated Design Release Engineer (DRE) – Wiring to support the design, development, and release of wiring harness systems for NAFTA vehicle applications.
Added 3 months ago
SG
Lead Penetration Test Engineer
S&P Global
Toronto, Ontario
- $135,000 to $180,000 CAD / year
- Full-time
…users from modern security threats. Our mission is to safeguard systems and data by developing innovative solutions to the industry’s most complex security challenges. We are passionate…
Added 4 months ago
SI
St Staff R&D Engineer
Synopsys Inc
Waterloo, Ontario
- Full-time
You have built production software systems over many years, the kind that engineers rely on daily, not prototypes that look good in demos. Full stack development is second nature to you:…
Added 2 months ago
Sr. Software Engineer (Hardware)
Dialpad
Vancouver, BC
As a Software Engineer, you’ll be responsible for developing and maintaining features to enhance customers’ day-to-day communication experience. You’ll work closely with customers and…
Added 2 months ago
XO
Staff Software Engineer
XTRACT ONE
Toronto, ON
- Full-time
Xtract One is currently looking for a "Staff Software Engineer" to join our team!
Added 2 months ago
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Senior Software Engineer, Applied AI (Netherlands)
Justworks
Toronto, ON
- €143,000 to €184,000 EUR / year
We are seeking a Senior Software Engineer with a strong passion for building AI-native systems in a product environment. The ideal candidate will be able to take ownership of large segments…
Added 2 months ago
Senior Software Engineer, Applied AI (Spain)
Justworks
Toronto, ON
We are seeking a Senior Software Engineer with a strong passion for building AI-native systems in a product environment. The ideal candidate will be able to take ownership of large segments…
Added 2 months ago
AM
SoC DFX Scan / ATPG Engineer
Advanced Micro Devices, Inc
Ottawa, ON
- Full-time
…experiences - from AI and data centers, to PCs, gaming and embedded systems. Grounded in a culture of innovation and collaboration, we believe real progress comes from bold ideas, human…
Added 2 months ago
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Engineer III, Cloud - Platform (Toronto, Hybrid)
CrowdStrike
Toronto, ON · ON
- Full-time
The skills to meet your commitments on time and produce high quality software that is unit tested, code reviewed, and checked in regularly for continuous integration
Added 2 months ago
ME
Intermediate Embedded Firmware Designer
MAD Elevator Inc
Mississauga, ON
- $100,000 to $120,000 CAD / year
…communication devices. You'll design, develop, and maintain embedded software applications for Linux-based communication and IoT products while collaborating closely with the Embedded Linux…
Added 2 months ago
End Investor Growth Engineer
Purpose Unlimited
Toronto, ON
As Growth Engineer, you are the marketing technical backbone of the end investor growth squad - the person who builds and maintains the systems that let a small team reach and engage a much…
Added 1 month ago
A
Intermediate Pavement Engineer - Airport runways, Taxiways, and Aprons
AECOM
Mississauga, ON
- $81,702.24 to $131,702.24 CAD / year
- Full-time
AECOM is seeking an Airside Civil/Intermediate Pavement Engineer – Airport Project to join our team. This position is based on-site, out of Mississauga.
Added 2 months ago
AF
Controls Engineer
Armstrong Fluid Technology
Toronto, ON
- Full-time
The Control Engineer will bring a standardized product development mindset to everything we build: control solutions that are repeatable and reliable across every unit we manufacture, and…
Added 3 months ago
A
System Firmware Technical Engineer (1 yr contract)
AMD
Markham, Ontario
- $156,000 to $234,000 USD / year
- Full-time
Deep understanding of embedded systems, platform architecture, and complex system integration.
Added 3 months ago
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Applied AI, Forward Deployed Machine Learning Engineer
Mistral
Montreal, Quebec
- Full-time
You have 2+ years as a technical individual contributor (data scientist or software engineer) on AI-based products

Fulfil

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

Remote, Canada

Remote

$160,000 to $180,000 CAD / year · Full-time

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Job details

Pay: $160,000 to $180,000 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) 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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