Python developer • etobicoke on
We are seeking a Senior Python API Engineer with strong experience in the payments, fintech, or banking domain to design, develop, and scale cloud-native backend services and APIs.In this role, you... Voir plus
About Fulfil Fulfil is the modern ERP for commerce.Built to power the fastest-growing eCommerce brands, our platform brings together order management, inventory, accounting, and more, turning compl... Voir plus
Python developer Python and experience in any image processing applications.Bachelor's or Master's degree in computer science, Biomedical engineering or related field or equivalent work experience.... Voir plus
Grow your career with an innovative global bank in Mississauga, ON as a Python Developer.Contract role with strong possibility of extension or conversion to full-time employment.Will require workin... Voir plus
Pay at Intact is about much more than just salary.Multiple benefits offered to support.Wellness account and much more.Share plan & other savings: up to.Employee Share Purchase Plan (ESPP) – with In... Voir plus
We are seeking a hands-on, self-directed Senior Python Developer to support delivery within the Total Fund Management Portfolio Management Technology team.This role demands high autonomy, ownership... Voir plus
Are you an experience Senior Software Developer with a curiosity into cybersecurity? Design and build applications for our world class team of Global Security professionals and take a career step i... Voir plus
Are you an experience Senior Software Developer with a curiosity into cybersecurity? Design and build applications for our world class team of Global Security professionals and take a career step i... Voir plus
Python and modern backend frameworks to join the team.This role is ideal for someone passionate about building scalable, secure, and high-performance APIs and services that power data-driven soluti... Voir plus
Citi, the leading global bank, has approximately 200 million customer accounts and does business in more than 160 countries and jurisdictions.Citi provides consumers, corporations, governments, and... Voir plus
Role: Senior FullStack (Python) Developer .Rates: $150k - $180k per year .We have a great new opportunity to support one of our online marketplace clients in a full-time capacity!.Please see below... Voir plus
We are seeking a seasoned Engineering Manager who remains a technologist at heart.This is a "player-coach" role designed for a senior back-end engineer who has successfully transitioned into leader... Voir plus
Design, develop, and maintain Python-based data orchestration workflows.Build and optimize ETL pipelines for structured and unstructured data.Integrate data from multiple sources ensuring scalabili... Voir plus
Salary: $140,000 - 190,000 per year.Minimum 8 years of extensive experience in software or data engineering within production settings.Advanced proficiency in Java or Python, focusing on performanc... Voir plus
Role Name: JAVA Spring Boot Python Engineer.Looking for a Senior Developer to work deploy and manage web API based applications who are passionate about their work and embraces the ideals of the so... Voir plus
Job Description: Role Descriptions:.GitHub Copilot & AI-Assisted Development.Data Engineering & Processing.Collaboration & Stakeholder Engagement.Model Monitoring & Optimization.Mor... Voir plus
Title: Senior ETL/Python Developer.Location: Toronto, ON - Hybrid (4 Days WFO).Job Overview: We're seeking an experienced ETL Pipeline Developer proficient in Python to design, implement, and m... Voir plus
We are seeking a highly accomplished and hands-on Java / Python Full Stack Developer for an enterprise-level contract opportunity based in Toronto.In this role, you will operate as a technical lead... Voir plus
Join a purpose driven winning team, committed to results, in an inclusive and high-performing culture.Business group: Global Treasury Technology.Project: Supporting multiple projects, partially app... Voir plus
Deloitte is seeking an experienced GenAI & Python Specialist to join our dynamic Operate team on a 1‑year fixed term employment basis.In this role, you will design, build, and scale Generative AI s... Voir plus
Position Description:
We are seeking a Senior Python API Engineer with strong experience in the payments, fintech, or banking domain to design, develop, and scale cloud-native backend services and APIs. In this role, you will leverage Python to build high-performance, secure, and resilient microservices that enable seamless integration across internal platforms, third-party partners, and payment ecosystems.
You will be responsible for designing and implementing RESTful and event-driven APIs, developing scalable backend solutions, and contributing to architecture decisions that support mission-critical financial systems. The ideal candidate has deep expertise in Python, distributed systems, API design, and cloud-native development on AWS, with a strong understanding of reliability, security, and performance best practices.
Working within a collaborative, cross-functional environment, you will help deliver robust solutions that support high-volume transaction processing, real-time integrations, and evolving business needs. This role is ideal for an engineer who enjoys solving complex technical challenges, mentoring team members, and driving engineering excellence through modern software development practices.
Your future duties and responsibilities:
Design, develop, and maintain scalable backend systems and APIs using Python
Build and implement cloud-native solutions on AWS to support payment processing and related services
Define and enforce API design standards to ensure consistency, usability, and performance
Develop event-driven architectures using streaming and messaging technologies (e.g., Kafka, AWS SQS)
Collaborate with cross-functional stakeholders to translate business requirements into technical solutions
Contribute to system architecture and design, ensuring scalability, resilience, and performance
Implement monitoring, observability, and alerting solutions (e.g., Datadog, Prometheus)
Manage and automate infrastructure using Infrastructure as Code tools such as Terraform
Deploy and maintain services in Kubernetes-based environments
Integrate with internal and external systems while maintaining strong security and reliability standards
Participate in code reviews, testing, and continuous improvement of engineering practices
Required qualifications to be successful in this role:
7–12 years of experience in software engineering, with a focus on backend/API development
Strong experience in the payments or banking domain
Proficiency in Python and building production-grade backend systems
Experience designing and implementing RESTful APIs and integration solutions
Hands-on experience with AWS cloud services
Experience with Kubernetes deployments and containerized applications
Familiarity with Infrastructure as Code (Terraform)
Experience working with event-driven architectures and messaging systems (Kafka, AWS SQS, or similar)
Knowledge of observability and monitoring tools such as Datadog or Prometheus
Demonstrated ability to design scalable and resilient systems
Preferred Skills
Experience working with high-volume or real-time financial systems
Strong understanding of system performance optimization and reliability engineering
Exposure to secure API design and compliance considerations in financial environments
"CGI is providing a reasonable estimate of the pay range for this role. The determination of this range includes factors such as skill set level, geographic market, experience and training, and licenses and certifications. Compensation decisions depend on the facts and circumstances of each case. A reasonable estimate of the current range is $95,–$,. This role is an existing vacancy."
#LI-AV1
Skills:
