senior java api developer jobs in Toronto

Deliver end-to-end features with Java, Spring Boot, React, and TypeScript at Agilno, through a hybrid GTA or Pacific remote arrangement. Agilno seeks a Senior Java Developer for software spanning web, mobile, Microsoft Office applications, and integration partners. Your focus will remain backend architecture and development, with frontend contributions...

Build Java applications with Spring Boot and AWS while supporting Nasdaq’s securities technology through a Wednesday-to-Sunday hybrid schedule. Deliver cloud-ready software across office and remote coverage. As a Software Developer, you will create professional web-based and back-end server applications for demanding financial securities customers. The...

Build high-performance Java applications for real-time data streaming in Toronto’s hybrid model, working three days weekly in the office. This Senior Software Developer contract supports a next-generation Cash Equities data platform. You will work with Core Java, Kafka, GCP, and scalable data pipelines. The platform serves as a central data store and...

Build scalable Java applications at Propel in hybrid Toronto, applying Spring Boot and REST expertise to fintech software development. Full-time technology work. As a Senior Software Developer, you will create reliable applications for Propel’s AI-driven fintech platform. The work emphasizes Java, object-oriented programming, clean code, and software...

Senior Full Stack Java Developer work in Toronto, using REST APIs and Oracle databases to build and support web applications. This 125-day senior assignment requires seven to ten years of experience in programming and analysis. You will translate systems specifications into tested applications while supporting front-end and back-end integration. The work...

Modernize business-critical Java platforms and help shape the next generation of financial markets technology.The Role Capco is looking for a Senior Java Developer to join a major technology modernization initiative focused on upgrading business-critical legacy applications and their supporting technology. This is a hands-on back-end engineering role for...

Build Java trading systems in Toronto while applying strong troubleshooting skills and AI-powered development tools in a hybrid work environment. As a Senior Software Developer with EqlipseTrading, you will develop, test, and maintain applications supporting electronic trading. The work combines Java programming, Python, SQL, production analysis, customer...

Advance your career in Toronto with a full-time opportunity as a Senior Java Developer specializing in API and MQ related to Capital Markets. Your expertise will shape the future of trading applications.This position requires a minimum of 8 years of hands-on experience, particularly in Java API, MQ, and adapter technologies using Oracle databases. Candidates...

Build scalable enterprise applications onsite in Toronto using Java, Spring Boot, React, and Angular across full-stack delivery. Lead secure APIs and responsive interfaces. This senior contract role spans application architecture, technical delivery, and full-lifecycle software development. You will connect business requirements with backend architectures,...

Tata Consultancy Services (TCS) is an equal opportunity employer, and embraces diversity in race, nationality, ethnicity, gender, age, physical ability, neurodiversity, and sexual orientation, to create a workforce that reflects the societies we operate in. Our continued commitment to Culture and Diversity is reflected in our people stories across our...

Lead Java and React development in a hybrid setting while guiding junior developers and resolving complex technical issues. This contract role offers $59.00-$64.00 per hour.As a Senior Full Stack Developer, you will lead key projects across backend and front-end development. You will use Java, React, Angular, and object-oriented design while delivering...

Design scalable Java and Spring Boot services from the Greater Toronto Area, working primarily remotely with on-site collaboration as required. Build backend solutions for complex enterprise workflows. This full-time, two-month contract supports an application modernization initiative in transportation and logistics. As a Senior Java Developer, you will...

Build Java applications with Spring Boot and AWS at Nasdaq while supporting reliable cloud-ready delivery on a Wednesday-to-Sunday schedule. This Software Developer role contributes to web-based and back-end server applications for financial securities customers. You will collaborate with development, QA, DevOps, and operations teams using iterative...

Java Developer for an enterprise contract opportunity based in Brampton, ON. In this role, you will take on a key backend software engineering, cloud-native application architecture, and systems integration capacity, specializing in designing, developing, and deploying resilient services and data processing pipelines. Operating within a hybrid model in...

Deliver end-to-end features with Java, Spring Boot, React, and TypeScript at Agilno, through a hybrid GTA or Pacific remote arrangement.Agilno seeks a Senior Java Developer for software spanning web, mobile, Microsoft Office applications, and integration partners. Your focus will remain backend architecture and development, with frontend contributions...

Lead technical innovation as a Senior Full Stack Developer specializing in Java. Engage with cross-functional teams to design and deploy database applications, ensuring optimal solutions and compliance. This role requires collaboration with Systems Architects and Software Team Leads to navigate complex projects and enhance existing applications. You'll be...

Build scalable Java applications at Propel in hybrid Toronto, applying Spring Boot and REST expertise to fintech software development. Full-time technology work.As a Senior Software Developer, you will create reliable applications for Propel’s AI-driven fintech platform. The work emphasizes Java, object-oriented programming, clean code, and software...

Build Java trading systems in Toronto while applying strong troubleshooting skills and AI-powered development tools in a hybrid work environment.As a Senior Software Developer with EqlipseTrading, you will develop, test, and maintain applications supporting electronic trading. The work combines Java programming, Python, SQL, production analysis, customer...

Location: Toronto, ON (Hybrid) Company: Cogency Employment: Full-Time About Cogency Cogency is a Toronto-based consulting and technology services firm specializing in enterprise digital transformation across the Banking, Financial Services, and Insurance (BFSI) sector. We partner with leading organizations to modernize platforms, enhance operational...

We are looking for a Senior Java Developer with LLM expertise to lead the technical design, development and integration of core banking application systems for a major financial services client.This role bridges high-scale microservices architecture with GenAI. You will help the bank build scalable, resilient, API-driven ecosystems that embed LLMs, agentic...