448,176+ Citi Senior Developer Pythonjava Jobs in Canada — Top Companies Hiring June 2026

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Senior Frontend Engineer UX Driven, Agile, Toronto

A technology solutions company located in Toronto, ON, is seeking a Senior Front End Developer for a full-time role. The ideal candidate will have over 5 years of web application development experience, familiarity with REST APIs, and a strong understanding of Agile methodologies. You will work closely with UX d ...

Senior iOS Engineer Build Scalable, Elegant Apps

A technology services company is seeking an iOS App Developer in Calgary, AB, offering a hybrid work setup. The ideal candidate should have deep expertise in iOS and Swift, strong CS fundamentals, and should be proficient in UIKit and Swift UI. This mid-senior level contract position is perfect for someone keen ...

Senior Full Stack Engineer — React/TypeScript, AWS, Remote

A leading educational technology company in Canada is seeking a Senior Full Stack Software Developer to design and maintain cloud‑based applications. This high-impact role requires deep expertise in React and involves working across the full technology stack, shaping architecture and raising engineering standard ...

Senior Dynamics 365 CE Architect & Integrations

A leading energy solutions firm in Mississauga seeks a Senior Dynamics 365 CE Developer with extensive experience in Microsoft Dynamics 365. This role involves developing and customizing solutions, collaborating with architects and analysts, and improving the user experience through innovative integrations. Cand ...

Senior Frontend Engineer UX Driven, Agile, Toronto

A technology solutions company located in Toronto, ON, is seeking a Senior Front End Developer for a full-time role. The ideal candidate will have over 5 years of web application development experience, familiarity with REST APIs, and a strong understanding of Agile methodologies. You will work closely with UX d ...

Senior Java Engineer Spring Boot & Microservices

A leading global financial institution is seeking a highly motivated Senior Java Developer to join their Wholesale Credit Risk Technology team. The role entails implementing projects using Java, Spring Boot, and Microservices, while collaborating with both onshore and offshore teams. Candidates should have at le ...

Senior Software Engineer — Cloud, Azure & Dynamics 365

A leading consulting firm in Toronto is seeking a Senior Software Developer to work in a hybrid model, requiring 3 days onsite and 2 days remote. Ideal candidates should have over 10 years of experience in software development, knowledge of relational databases, and expertise in cloud computing technologies like ...

Senior SRE Software Engineer: Scale & Reliability Leader

A leading global tech company is seeking a Senior Software Developer for its Site Reliability Engineering team. This role involves optimizing large-scale systems for reliability and performance. Candidates should have a Bachelor's degree in Computer Science or Engineering with 5+ years of software development ex ...

Senior UI Architect – Rates Trading Tech Lead

A major financial services firm in Toronto seeks a Senior Application Developer to enhance its Rates trading systems. Candidates must have at least 6 years of experience in building client-side applications, especially with Angular and ReactJS. The role involves UI development, project delivery, and continuous p ...

Senior Java Full Stack Engineer: Cloud, Microservices, CI/CD

A leading software development firm is seeking a Senior Full Stack Java Developer in Montreal to help build a secure and scalable cloud-based settlement platform. You'll work in an agile team, contributing to architectural design and development, while mentoring junior developers. The ideal candidate has over 5 ...

Senior Node.js Engineer Toronto (Hybrid: 2 Days Onsite)

A leading software development company in Toronto is looking for a Senior NodeJS Developer to join their team. The ideal candidate should have over 7 years of experience in Node.JS development. This role involves integration testing and the creation of test data for new services. The position requires strong ski ...

Senior Dynamics 365 CRM Engineer – Onsite Oshawa

A leading technology firm is seeking a Senior CRM Developer with strong experience in Microsoft Dynamics 365 (D365) to support their public sector client. The candidate should possess at least 5 years in CRM development, with proficiency in C#, .NET, ASP.NET, and MS SQL Server. Responsibilities include designing ...

Senior iOS Engineer — Tech Lead & Architecture

A leading bank in the Americas is seeking a Senior iOS Developer to join their Toronto team. The ideal candidate will have over 5 years of iOS development experience using Swift 5 and XCTest, with strong knowledge in UIKit and Auto Layout. Responsibilities include analyzing complex requirements, providing techni ...

Senior React Native Mobile Architect – Remote

A leading healthcare technology company in Montreal is seeking a Senior Mobile Developer to create high-quality mobile applications using React Native. You will manage mobile releases, lead architectural decisions, and collaborate with cross-functional teams. The ideal candidate has at least 10 years of mobile d ...

Senior Staff AI First Software Architect

A leading financial software company in Toronto seeks a Senior Staff/Principal Software Developer. This hybrid role requires expertise in full-stack development and AI technologies. You'll drive significant tech initiatives and collaborate cross-functionally to create solutions for customer problems. A competiti ...

Remote Senior Full Stack Engineer — Observability DX (Equity)

A leading tech firm in Canada seeks a Senior Full Stack Engineer to revolutionize observability through an open-source platform. The role involves shaping key features, collaboratively engaging with the developer community, and tackling technical challenges in building high-performance systems. Candidates should ...

Remote Senior Fullstack Engineer React/Node at Scale

A forward-thinking tech company seeks a mid-senior level developer to work on impactful projects in a fully remote setting. The ideal candidate will have expertise in technologies such as React, Node, and SQL. This full-time role offers flexible hours, health benefits, and opportunities for professional developm ...

Senior JavaScript Full Stack Lead — React/Node

A tech company in Ottawa is seeking a Senior JavaScript Full Stack Developer to lead the design and delivery of key initiatives for its domain and hosting platform. This role involves extensive collaboration with cross-functional teams to develop scalable solutions using React and Node.js. Ideal candidates will ...

Senior Java & Angular Tech Lead

A leading provider of registration solutions in Toronto seeks a Mid-Senior level software developer to design and develop applications using Java, J2EE, and various technologies. The successful candidate will provide technical leadership and must have at least 6 years of experience in systems development. The ro ...

Senior CRM Architect Enterprise Data & Cloud

A leading international university is seeking a Senior CRM Developer to design, configure, and support their enterprise CRM platform. The role requires strong experience in Salesforce Apex and Java, alongside a background in Information Technology. Candidates should have at least seven years of experience, inclu ...

Senior .NET Software Engineer: Scale with SQL & React

A leading technology firm in Toronto is looking for a Mid-Senior level .NET Developer to join their team. The role involves designing and developing .NET applications, optimizing SQL databases, and creating front-end components using React. Candidates should have over 5 years of experience in software developmen ...

Senior Full Stack Engineer – AI Driven Web Apps, Equity & PTO

A leading indoor mapping platform is searching for a Senior Software Developer to lead the development of innovative software products. This role emphasizes collaboration with internal teams to define project priorities and drive feature initiatives. The ideal candidate will have solid experience with TypeScript ...

Senior Full Stack Engineer Java/Angular & BPM (Hybrid)

A software development company in Ontario seeks a Senior Full Stack Developer to translate technical specifications into working applications. The ideal candidate will have over 10 years of experience, strong skills in Java services, and proficiency in modern UI frameworks like AngularJS and NodeJS. You will wor ...

Senior Backend Engineer PHP/Laravel & Microservices

A leading meal solutions company in Toronto is seeking a Senior Back-End Developer to join their IT team. In this role, you will design and develop high-quality code, enhance user experiences, and work with various technologies, including PHP and TypeScript. The ideal candidate will have over 7 years of programm ...

Senior Java Microservices Engineer GKE on GCP

A technology solutions firm in Toronto is seeking a full-stack Java developer for a contract position. The ideal candidate will have at least 10 years of Java and Spring Boot experience and substantial hands-on expertise with Kubernetes on Google Cloud Platform. Responsibilities include designing and deploying m ...

Senior Java Full Stack Engineer: Cloud and Microservices

A leading technology firm in Montreal is looking for a Senior Full Stack Java Developer to join their team focusing on building a secure, cloud-based settlement platform. You will work in an agile environment collaborating with various stakeholders, ensuring high-quality software delivery. The ideal candidate ha ...

Senior Full Stack Software Engineer – Remote Health Tech

A healthcare technology company is seeking a Senior Software Developer with extensive experience in full-stack engineering. In this role, you will create scalable and efficient systems, collaborating closely with cross-functional teams. Applicants should have at least 5 years of experience and strong proficiency ...

Senior Full Stack Software Engineer – Remote Health Tech

A healthcare technology company is seeking a Senior Software Developer with extensive experience in full-stack engineering. In this role, you will create scalable and efficient systems, collaborating closely with cross-functional teams. Applicants should have at least 5 years of experience and strong proficiency ...

Senior Front End Engineer Health Tech, On Site

A leading healthcare technology company is seeking a Senior Front End Developer to join their dynamic team in Sunnyvale, CA. In this role, you will be responsible for developing user-friendly web applications using React and React Native. Ideal candidates will have a strong background in front-end development wi ...

Senior AI Backend Engineer — Real Time Event Platform

A tech company specializing in event-driven architecture is seeking a Senior Software Developer to join their AI team. The role involves leading technical projects, creating robust APIs, and collaborating across functions to enhance product offerings. Candidates should have over 7 years of experience, strong bac ...

Senior Full Stack Software Engineer – Remote Health Tech

A healthcare technology company is seeking a Senior Software Developer with extensive experience in full-stack engineering. In this role, you will create scalable and efficient systems, collaborating closely with cross-functional teams. Applicants should have at least 5 years of experience and strong proficiency ...

Senior Full Stack Engineer — React/TypeScript, AWS, Remote

A leading educational technology company in Canada is seeking a Senior Full Stack Software Developer to design and maintain cloud‑based applications. This high-impact role requires deep expertise in React and involves working across the full technology stack, shaping architecture and raising engineering standard ...

Senior Full Stack Engineer — React/TypeScript, AWS, Remote

A leading educational technology company in Canada is seeking a Senior Full Stack Software Developer to design and maintain cloud‑based applications. This high-impact role requires deep expertise in React and involves working across the full technology stack, shaping architecture and raising engineering standard ...

Senior Full Stack Software Engineer – Remote Health Tech

A healthcare technology company is seeking a Senior Software Developer with extensive experience in full-stack engineering. In this role, you will create scalable and efficient systems, collaborating closely with cross-functional teams. Applicants should have at least 5 years of experience and strong proficiency ...

Senior Cloud Software Engineer – Cloud Native

A leading cybersecurity company is seeking a Senior Software Developer to join its FortiClient Cloud team in Burnaby, Canada. The role involves designing and developing cloud applications using modern technologies. Ideal candidates should have a minimum of 5 years relevant experience, strong skills in Python and ...

Senior Software Engineer: Compliance & Multi Region

A leading Asset and Work Intelligence platform in Montreal is seeking a Senior Software Developer to excel in compliance and multi-region deployments. The role requires a strong background in full-stack development, particularly in TypeScript and React Native, as well as expertise in AWS and infrastructure as co ...

Senior DevOps Engineer: Cloud, Security & AI Ready

A leading nuclear innovation firm in Canada is seeking a Senior DevOps Developer to design and maintain secure cloud infrastructure. The role involves optimizing CI/CD pipelines and managing containerization efforts. You will work closely with engineering teams to implement DevSecOps best practices and ensure sy ...

Senior iOS Architect & Mentor — SwiftUI, Performance

A leading technology company in Canada is seeking a Senior iOS Developer to architect and build scalable iOS applications. The ideal candidate will possess strong computer science fundamentals, deep expertise in iOS development, and the ability to mentor others. This role emphasizes collaboration and the use of ...

Senior Java VOIP/SIP Engineer 911 Systems Hybrid Montreal

A technology leader in emergency communications is looking for a Senior Java Developer to create and maintain VOIP/SIP solutions. This role requires 8+ years of experience in software development, particularly in Java. The chosen candidate will work with cross-functional teams to deliver critical systems for eme ...

Senior Full Stack Lead for AI Risk Solutions

A leading tech solutions provider is seeking a Senior Full Stack Developer in Toronto to support the development of a new full-stack application within the Risk domain. The role involves integrating frontend and backend components, collaborating with UI developers, and leading the technical direction. Candidates ...

Senior Backend Engineer Python/Node, Scalable APIs

A leading software company in Toronto is seeking a Senior Software Developer to join their Autodesk Construction Cloud team. The role involves designing and maintaining RESTful APIs and backend services using Node.js and Python. Ideal candidates will have over 3 years of experience in backend development, a stro ...

Senior DevOps Engineer: Cloud, Security & AI Ready

A leading nuclear innovation firm in Canada is seeking a Senior DevOps Developer to design and maintain secure cloud infrastructure. The role involves optimizing CI/CD pipelines and managing containerization efforts. You will work closely with engineering teams to implement DevSecOps best practices and ensure sy ...

Senior Java Backend Engineer Microservices & Cloud

A leading technology firm in Peel Region, Mississauga is looking for a Senior Java Developer. This role involves leading the implementation of application systems in coordination with the Technology team. The ideal candidate will have 8-12 years of experience in Java backend development, proficiency in Python an ...

Senior Backend Engineer for AI Driven Innovation

A leading Canadian business advisory firm is seeking a Senior Back-End Developer to join their innovative development team in Calgary. The successful candidate will design scalable back-end services using .NET and Azure, lead architecture for new initiatives, and collaborate with cross-functional teams. Strong e ...

Senior .NET Backend Engineer – API & Event Driven Systems

A leading sports technology company is seeking a Senior .NET Backend Developer to join its backend team. In this role, you will design and maintain backend systems using .NET. Key responsibilities include developing APIs, applying Clean Architecture principles, and collaborating with cross-functional teams. Idea ...

Staff Backend Platform Engineer Scheduling & Automation

A leading virtual care provider in Montreal seeks a Staff Platform Developer to provide technical leadership and advance the architecture of their scheduling and automation platform. This is a senior role focusing on backend engineering and system design, where you'll guide teams and set standards. Ideal candida ...

Senior .NET Architect – Cloud & Distributed Systems

A leading nuclear technology firm is looking for a Senior .NET Developer to own and design mission-critical software systems that drive digital transformation in the nuclear industry. This role will require strong ownership of architectural decisions, cloud-native application design, and leadership in a collabor ...

Remote Senior Java Lead | Enterprise Web Apps

A consulting firm in Ontario is seeking a Senior Enterprise Java Developer to lead and mentor project teams. The position is remote and requires over 8 years of professional experience in Java development, with a focus on high-performance web applications. The ideal candidate should have strong communication ski ...

Senior iOS Lead: Strategy, Features & Mentorship

A leading tech company in Calgary, Alberta, is seeking a Senior iOS Developer to significantly impact its flagship trading platforms. The ideal candidate will be passionate about building innovative and user-focused software, possess expertise in Swift and iOS SDK, and have over 7 years of experience in developm ...

Backend Architect, Cloud & IoT for Senior Care (Hybrid)

A Montreal-based startup is seeking a backend developer to enhance its cloud infrastructure supporting IoT devices for senior care. The candidate will design, deploy, and maintain robust backend solutions, ensuring seamless integration with the hardware team. Responsibilities include developing cloud APIs and Io ...

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