Senior Full-Stack Software Developer (Python/React)

Intact Financial Corporation; Toronto; Hybrid; CAD 119,000 - 145,000; Full time

Benefits offered by this job

Hybrid work model

Employee Share Purchase Plan (ESPP)

Wellbeing benefits

Job summary

Intact Financial Corporation is seeking a Senior Full-Stack Software Developer (Python/React) to join the AI Engineering team in a hybrid Canada role. You will build reliable, scalable AI-powered products across distributed systems, frontend and backend, cloud infra, information extraction, and LLM services.

You will design event-driven pipelines, develop frontend and backend components, optimize cloud models for quality, latency, and cost, and mentor squad members.

Qualifications

• Bachelor’s degree or equivalent in computing fields.
• 5+ years in significant software development.
• Strong Python, TypeScript, React, AWS, and REST API experience.
• Experience with distributed systems and event-driven architectures.

Responsibilities

• Design and evolve event-driven distributed systems with reliable failure handling.
• Develop frontend and backend components for AI-powered features.
• Build production LLM solutions with cloud model integration and cost control.
• Create information extraction pipelines (OCR, layout analysis, etc.).
• Own frontend foundations and monorepo tooling, TS architecture, builds.
• Design Terraform infrastructure and multi-environment layouts.
• Contribute to AWS architecture including networking, IAM, logging.
• Design CI/CD workflows with reusable pipelines and gates.
• Support automated UI testing and local cloud emulation environments.
• Establish observability with structured logging and metrics.

Skills

Python

TypeScript

React

AWS

REST APIs

Distributed systems

CI/CD

Terraform

LLM features

Observability

Education

Bachelor’s degree in computer engineering, computer science, or a related field

Tools

Terraform

Swagger/OpenAPI

Job description

Our employees are at the heart of everything we do. Together, we help people, businesses, and society prosper in good times and be resilient in bad times. Our employee promise represents Intact’s commitment to you in exchange for living our Values, striving to do your best work, being open to change and investing in your career. In return, we promise to provide support, opportunities and performance-led financial rewards at a workplace where you can shape the future, win as a team and grow with us. Pay at Intact is about much more than just salary. Flexible work arrangements and a hybrid work model Possibility to purchase up to 5 extra days off per year Multiple benefits offered to support physical and mental wellbeing, including telemedicine, Wellness account and much more Share plan & other savings: up to 12% of salary or even more (ask how you could earn guaranteed income for life) Salary range (but not limited to): 118,700 - 145,100 Annual bonus target, based on the base salary, with a potential payout of up to double the target (subject to personal and company performance): 12% As part of our commitment to Win As A Team, we share our success with employees through our annual bonus plan and Employee Share Purchase Plan (ESPP) – with Intact matching 50% of your net shares.

About the role

We’re looking for a Senior Full-Stack Software Developer (Python/React) to join our growing AI Engineering team and build reliable, scalable AI-powered products across distributed systems, frontend and backend development, cloud infrastructure, information extraction, and LLM services.

What you’ll do here:

• Design and evolve event-driven, distributed systems using queue-based pipelines, fan-out/fan-in, backpressure, idempotency, and reliable failure and retry handling.
• Develop and maintain frontend and backend components that support our algorithms and AI-powered features.
• Build production LLM solutions, including cloud model integration and optimization of quality, latency, and cost.
• Develop information extraction pipelines covering classification, OCR, document layout analysis, model-based extraction, prompt design, refinement, and validation.
• Own frontend foundations, including monorepo package management, build orchestration, shared React components, TypeScript architecture, and build performance.
• Design and maintain Terraform infrastructure, including reusable modules, remote state, provider pinning, and multi-environment layouts.
• Contribute to AWS architecture, including networking, load balancing, API gateways, IAM, encryption and key management, and log and metric delivery.
• Design CI/CD workflows with reusable pipelines, environment matrices, and production approval gates.
• Support component, integration, and automated UI testing, including local test environments using emulated cloud services.
• Establish observability through structured logging, custom metrics, and queries that trace failures across distributed pipelines.
• Optimize containerized services for performance and cost through appropriate sizing, concurrency tuning, and bottleneck analysis.
• Define development standards and technical strategies that promote quality, efficiency, resilience, maintainability, and sustainability.
• Collaborate on prioritization, resolve technical issues, improve team productivity, and mentor Squad members as a Technical Leader.

What you bring to the table:

• Bachelor’s degree in computer engineering, computer science, or a related field—or equivalent education and experience.
• At least five years of significant software development experience.
• Strong proficiency in Python, TypeScript, React, AWS, and REST APIs using Swagger/OpenAPI.
• Experience with distributed systems and event-driven architectures, including asynchronous processing, retries, idempotency, backpressure, and failure recovery.
• Experience with frontend architecture, monorepos, shared React component libraries, TypeScript type design, and build and bundle optimization.
• Experience with Terraform, including module design, remote state, provider pinning, and multi-environment infrastructure.
• Broad AWS knowledge covering networking, load balancing, API gateways, IAM, encryption, key management, logging, and metrics.
• Experience designing CI/CD systems with reusable workflows, environment matrices, and production approval processes.
• Production experience taking LLM- or model-backed features from prototype to reliable service, including cloud model integration and quality, latency, and cost management.
• Knowledge of AI, generative AI, RAG, MLOps, prompt design, OCR, document layout analysis, and information extraction.
• Experience with component, integration, and automated UI testing.
• Strong observability and troubleshooting skills, including structured logging, custom metrics, and tracing failures through distributed systems.
• Strong documentation and communication skills, with the ability to explain complex technical concepts clearly.
• No Canadian work experience required however must be eligible to work in Canada.
• For candidates located in Quebec, bilingualism is required considering the necessity to interact on a regular basis with English-speaking colleagues across the country.

Nice-to-have:

• Experience leading migrations involving a dependency manager, CI platform, or infrastructure layout.
• Experience designing local development and integration-test environments using emulated cloud services.
• Experience optimizing containerized services for cost and performance, including workload sizing, concurrency tuning, and bottleneck analysis.
• Experience mentoring developers or serving as a Technical Lead.

#LI-Hybrid

Il s'agit d'un nouveau rôle au sein de notre équipe en pleine croissance | This role is a new member of our growing team.

We are an equal opportunity employer At Intact, our Value of respect is founded on seeing diversity as a strength. We strive to create an accessible workplace where employees feel valued, included and encouraged to share their unique perspectives. We encourage applications from individuals who are members of equity-deserving groups, including but not limited to women, Indigenous peoples, persons with disabilities, Black people, and members of the 2SLGBTQI+ community. As part of Intact’s commitment to reconciliation, we acknowledge that we work, meet and travel across the land currently called Canada, originally inhabited by First Nations, Metis and Inuit people. This history extends through many centuries and continues to evolve today. We have policies to ensure equal access and participation for people with disabilities, including providing workplace adjustments (accommodations). A copy of applicable policies is available on request. Please note that Intact does not provide sponsorship or other support for immigration-related matters including but not limited to employer-specific closed work permits. Candidates must be eligible to work in Canada from the anticipated start date and throughout their employment and are solely responsible for maintaining their work eligibility.