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Developer Canada, Mississauga Jobs

193 Job Offers

Senior Java Developer
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Senior Java Developer sought in Mississauga, Canada, to lead applications systems analysis and programming. Requires 6-10 years’ experience, hands-on Java expertise, and API engineering skills. This role involves partnering with management to drive system enhancements and resolve complex problems...
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Canada , Mississauga
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120800.00 - 170800.00 USD / Year
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Citi
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Senior Full Stack Developer
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Join Citi in Mississauga as a Senior Full Stack Developer. You will build scalable microservices and React-based front-ends for a global client platform. This role requires 5-8 years of Java/Spring and ReactJS expertise. Shape the future of a large-scale, modern technology stack.
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Canada , Mississauga
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94300.00 - 141500.00 USD / Year
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Citi
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Lead Full Stack Java Developer
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Lead a team as a Senior Full Stack Java Developer in Mississauga. Utilize 6+ years of expertise in Java, Spring Boot, React, and Microservices to design robust applications. Drive innovation by integrating AI tools and modern cloud-native architectures. This role offers a chance to solve high-imp...
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Canada , Mississauga
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Salary
120800.00 - 170800.00 USD / Year
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Citi
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Senior Java Developer
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Join a leading team in Mississauga as a Senior Java Developer. Utilize your 5+ years of Java and Spring Boot expertise to build enterprise-scale applications and REST APIs. Collaborate with global teams on CI/CD, Kubernetes, and innovative financial services solutions. This is a key role in devel...
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Canada , Mississauga
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Salary
94300.00 - 141500.00 USD / Year
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Citi
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Senior Python Developer
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Lead Python development for innovative Credit Risk solutions at Citi in Mississauga. Utilize your 6+ years of Python/FastAPI expertise to design enterprise applications with LLM and RAG architectures. Collaborate with global teams on cutting-edge technology in the financial sector.
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Canada , Mississauga
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120800.00 - 170800.00 USD / Year
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Citi
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Until further notice
Senior Angular Frontend Developer
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Lead Angular development for high-impact applications at a senior level in Mississauga. This role requires expert proficiency in Angular 11+, TypeScript, and modern frontend design patterns. You will leverage 6-10 years of experience to analyze systems, lead projects, and drive technical excellence.
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Location
Canada , Mississauga
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120800.00 - 170800.00 USD / Year
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Citi
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Senior Java React Full Stack Developer
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Join Citi in Mississauga as a Senior Java React Full Stack Developer. Leverage 6+ years of experience with Java Spring Boot microservices and React.js/TypeScript frontends. Design scalable APIs and deploy on AWS/OpenShift, with a focus on innovative AI and LLM integration.
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Location
Canada , Mississauga
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Salary
94300.00 - 141500.00 USD / Year
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Citi
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Senior Application Full Stack Developer
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Seeking a Senior Full Stack Developer in Mississauga to lead high-volume, low-latency Java applications for Capital Markets. This role requires 5+ years in Java, Angular, and Oracle RDBMS, with Weblogic EJB expertise. You will design, develop, and provide L3 support for critical inventory managem...
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Canada , Mississauga
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94300.00 - 141500.00 USD / Year
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Citi
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Java Developer
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Join our Credit Risk Technology team in Mississauga as a Java Developer. You will build critical risk management systems using Java, Spring/Flink, and cloud platforms like AWS. This role requires 2-5 years' experience, proficiency with GenAI tools like GitHub Copilot, and strong SQL knowledge. Co...
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Canada , Mississauga
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Salary
79320.00 - 110680.00 USD / Year
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Citi
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Senior Java Technology Developer
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Lead the modernization of critical Credit Risk platforms as a Senior Java Developer in Toronto/Mississauga. This senior role requires deep expertise in Core Java, microservices, and cloud-native architectures. You will re-engineer monolithic systems, leveraging TDD and Agile methodologies.
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Canada , Mississauga; Toronto
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120800.00 - 170800.00 USD / Year
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Citi
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Senior Big Data Pyspark Developer
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Join our team in Mississauga as a Senior Big Data PySpark Developer. Leverage 5-6 years of experience with Java, Spring Boot, and Microservices. Build robust solutions using Angular, Kafka, and cloud platforms in a collaborative environment.
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Canada , Mississauga
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94300.00 - 141500.00 USD / Year
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Citi
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Application Development Technical Lead Analyst Developer
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Lead the development of robust, low-latency Java microservices for Citi's Fixed Income Post-Trade STP systems in Mississauga. You will design scalable backend services for trade data flow, ensuring accuracy and resilience. This role requires 5+ years of Java expertise with Spring, Kafka, and Open...
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Canada , Mississauga
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Salary
120800.00 - 170800.00 USD / Year
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Citi
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Front End Developer
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Join our team in Mississauga as a Front End Developer. You will build responsive, high-performance web interfaces using modern frameworks like React, Angular, or Vue. Collaborate with designers and backend teams to create exceptional user experiences. Strong skills in HTML, CSS, JavaScript, and T...
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Canada , Mississauga
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Salary
100000.00 USD / Year
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Full Stack Developer
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Join our team in Mississauga as a Full Stack Developer. You will build and maintain end-to-end web applications using modern JavaScript frameworks and backend technologies like Node.js or Java. We seek a skilled developer proficient in both frontend and backend, with experience in REST APIs and d...
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Canada , Mississauga
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160000.00 USD / Year
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Angular Developer
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Join our team in Mississauga, ON, as an Angular Developer. You will build dynamic web applications using Angular, TypeScript, and modern front-end technologies. Your role involves developing scalable components, integrating REST APIs, and ensuring optimal performance. We seek a skilled developer ...
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Canada , Mississauga
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Salary
109367.00 USD / Year
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Backend Java API Developer
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Join our team in Mississauga as a Backend Java API Developer. Utilize your 5-8 years of experience with Java, Spring Boot, and Microservices. You will design and implement robust API solutions, working with Kafka, MongoDB, and cloud technologies like OpenShift. This role offers a dynamic Agile en...
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Location
Canada , Mississauga
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Salary
94300.00 - 141500.00 USD / Year
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Citi
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Java Developer
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Join our Technology team in Mississauga as a Java Developer. This intermediate role requires 5-8 years of experience in systems analysis, software application programming, and project management. You will design, develop, and implement new applications to meet specific business needs. Utilize you...
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Location
Canada , Mississauga
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Salary
94300.00 - 141500.00 USD / Year
https://www.citi.com/ Logo
Citi
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Java Backend Developer
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Join our Technology team in Mississauga as a Java Backend Developer. This intermediate role requires 5-8 years of expertise in Java, Spring Boot, and RESTful APIs. You will design and implement scalable applications, working with both SQL and NoSQL databases. Contribute to the full development li...
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Canada , Mississauga
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Salary
94300.00 - 141500.00 USD / Year
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Citi
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Senior Java Developer
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Join Citi's acclaimed Technology team as a Senior Java Developer in Mississauga. Leverage your 4+ years of Java expertise with Spring Boot, Kafka, and Kubernetes to build critical financial systems. You will drive the full development lifecycle, from analysis to implementation, in a high-visibili...
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Location
Canada , Mississauga
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Salary
94300.00 - 141500.00 USD / Year
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Citi
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Until further notice
Senior Java Developer - Risk
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Seeking a Senior Java Developer for Risk Systems in Mississauga. This role focuses on building strategic, low-latency applications using Java, Microservices, and Cloud (AWS/OpenShift). Ideal candidates have 5+ years of Java, Spring Boot, and modern architecture experience. Join a global team to d...
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Location
Canada , Mississauga
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Salary
94300.00 - 141500.00 USD / Year
https://www.citi.com/ Logo
Citi
Expiration Date
Until further notice

About the Developer role

Discover the dynamic world of developer jobs, a cornerstone of the modern digital economy. Developers are the creative and technical masterminds behind the software, applications, and systems that power our daily lives. From the websites we browse to the mobile apps we use and the complex enterprise software running global businesses, developers are the architects of our digital future. This profession involves designing, coding, testing, and maintaining the software that drives innovation across every industry.

A developer's primary responsibility is the entire software development lifecycle. This begins with analyzing user needs and then designing robust software solutions to meet those requirements. The core of the role involves writing clean, efficient, and well-documented code in various programming languages. Developers build and maintain the backbone of applications, which includes creating and managing Application Programming Interfaces (APIs), backend services, and database structures. They are responsible for implementing key architectural patterns like microservices to ensure systems are scalable, reliable, and performant. A significant part of their work involves integrating different systems, such as connecting applications to databases, message queues, and third-party services.

Beyond initial creation, developers are tasked with continuous improvement and maintenance. This includes identifying and fixing bugs, optimizing applications for speed and stability, and implementing security best practices to protect against vulnerabilities. They conduct rigorous testing, including unit and integration tests, to ensure software quality. Furthermore, developers collaborate closely with other teams, such as frontend engineers, quality assurance (QA) specialists, and DevOps teams, to enable seamless continuous integration and deployment (CI/CD) pipelines. In many modern environments, developers also work on containerizing applications using tools like Docker and orchestrating them with platforms like Kubernetes. For senior and leadership roles, responsibilities expand to include mentoring junior team members, managing project timelines, making strategic technology decisions, and overseeing a team's output and professional development.

Typical skills and requirements for developer jobs are diverse. A strong foundation in computer science principles is essential. Proficiency in one or more programming languages (such as Go, Java, Python, JavaScript, or C#) is a fundamental requirement. Developers must understand software architecture, including concepts like RESTful APIs, microservices, and event-driven systems. Experience with databases (SQL and NoSQL), version control systems like Git, and operating systems is standard. As the field evolves, knowledge of cloud platforms (AWS, Azure, GCP), containerization, and infrastructure-as-code is increasingly valuable. Crucially, soft skills are just as important; problem-solving abilities, analytical thinking, clear communication, and the capacity to work collaboratively in a team are highly sought after. Most positions require a bachelor's degree in computer science or a related field, or equivalent practical experience. Whether you are an entry-level programmer or an experienced applications development manager, developer jobs offer a challenging and rewarding career path for those passionate about building the technology of tomorrow.