42 jobs found for Senior software developer in Toronto, Ontario

We are seeking a highly accomplished Senior Software Developer for an enterprise-level contract opportunity based in Toronto. In this role, you will take on a premier full-stack Java engineering, cloud microservices architecture, and technical team leadership capacity, specializing in designing, building, and deploying complex enterprise and public-facing applications.As a Senior Software Developer, you will bridge the gap between technical architecture sp

We are seeking an experienced Senior Software Developer specializing in enterprise CRM solutions to lead the technical design, configuration, development, integration, and enhancement of mission-critical systems. In this role, you will be responsible for evaluating existing system performance and capacity, gathering complex business and technical requirements, and translating architectural specifications into robust, tested software applications. Leveragin

We are seeking a highly accomplished Senior Software Developer for an enterprise-level contract opportunity based in Toronto. In this role, you will take on a premier frontend architecture, digital portal development, and technical delivery capacity, specializing in designing and building scalable, public-facing digital registration and permit solutions.As a Senior Software Developer, you will bridge the gap between user-centered interface design, middlewa

We are looking for a Senior Software Developer, Data to join our Data team in the Engineering Department! The Senior Software Developer, Data is a senior-level individual contributor, reporting to the Team Lead, Data. In this role you will own the systems and infrastructure that the Data team depends on to operate effectively — including warehouse infrastructure, CI/CD automation, developer environments, data quality frameworks, and the data catalog.Workin

We are seeking a highly experienced Senior Software Developer to lead the development, modernization, and integration of enterprise web-based software applications. In this role, you will work across all phases of the Software Development Life Cycle (SDLC) within a Microsoft .NET framework. You will be responsible for translating complex functional specifications into scalable technical designs, developing backend and front-end code, optimizing database ar

We are seeking an experienced Senior Software Developer specializing in Oracle Siebel CRM to lead the design, development, configuration, integration, and technical testing of enterprise applications. In this role, you will translate complex technical system specifications into robust, production-ready software solutions. Leveraging over a decade of hands-on expertise in Siebel Tools, Siebel Open UI, EAI/EIM, and web services, you will drive end-to-end int

We are seeking a versatile Senior Software Developer to support core healthcare application enhancements, application modernization, and digital platform transformations across multi-cloud environments. In this role, you will be responsible for end-to-end full-stack development, designing and building web applications using Microsoft .NET MVC in Azure alongside Python web frameworks (Django) in AWS. Working across diverse cloud ecosystems, you will constru

We are seeking a dedicated and technically driven Senior Software Developer for a contract opportunity based in Toronto. In this role, you will take on an impactful AI/ML engineering, large language model (LLM) pipeline, and model inference capacity, specializing in executing batch inferences, evaluating model outputs, and managing reproducible data science workflows.Operating fully onsite in Toronto, you will work closely with engineering teams to run and

We are seeking a highly accomplished Senior Software Developer for an enterprise-level contract opportunity based in Toronto. In this role, you will take on a premier full-stack engineering and technical leadership capacity, specializing in the analysis, design, development, and integration of large-scale, multi-tier systems.As a principal software developer, you will bridge the gap between business requirements, solution architecture, and hands-on applica

We are seeking a highly accomplished Senior Software Developer for an enterprise-level contract opportunity based in Toronto. In this role, you will take on a premier software engineering, enterprise integration, and system sustainment capacity, specializing in maintaining, enhancing, and scaling mission-critical web applications and integration architectures.As a Senior Software Developer, you will bridge the gap between core backend application developme

We are seeking an experienced Senior Software Developer to lead the front-end design, development, and integration of a modern, public-facing online registration and workflow portal. In this role, you will be responsible for translating complex business processes into highly responsive, intuitive, and accessible user interfaces using React, Next.js, and TypeScript. You will build resilient client-side architectures, integrate front-end components with back

We are seeking a highly accomplished Senior Software Developer for an enterprise-level contract opportunity based in Toronto. In this role, you will take on a premier full-stack and mobile software engineering capacity, specializing in the architecture, design, and implementation of complex interactive applications across multi-platform enterprise environments.Operating fully onsite in Toronto, you will bridge the gap between business requirements, cross-p

We are seeking an experienced Senior Software Developer to provide team leadership, technical guidance, and full-lifecycle application development for complex enterprise solutions. In this role, you will lead development activities, mentor software developers, and ensure solution alignment with approved architectural standards, security requirements, and delivery objectives. Utilizing Java, cloud-based microservices architecture, and Microsoft Azure, you w

We are seeking an experienced Senior Software Developer to lead the technical design, development, testing, and sustainment of enterprise-grade web applications using Microsoft .NET technologies. In this role, you will be responsible for translating complex business and technical requirements into structured, scalable, and secure software solutions. Leveraging hands-on expertise with C#, ASP.NET, Web APIs, Microsoft Azure services, and SQL Server, you will

We are seeking an experienced Senior Software Developer to lead the technical design, development, systems re-engineering, and implementation of large-scale enterprise web applications. In this role, you will bridge technical analysis, business process modeling, and full-lifecycle Java software development. You will translate system requirements and specifications into scalable, secure, and production-tested solutions. Leveraging expertise in Java, REST/SO

We are seeking a highly accomplished Senior Software Developer for an enterprise contract opportunity based in Toronto. In this role, you will take on a premier full-stack software engineering, application architecture, and technical delivery capacity, specializing in the design, development, and enhancement of scalable, multi-tier enterprise solutions.As a Senior Software Developer, you will bridge the gap between business requirements, complex backend ar

We are seeking an experienced Senior Software Developer specializing in enterprise Siebel CRM to lead complex technical configuration, application design, system integration, and reporting solutions. In this role, you will be responsible for translating technical specifications into robust, production-tested software applications. Leveraging deep expertise in Siebel Tools, Open UI architecture, Enterprise Integration Manager (EIM), Enterprise Application I

We are seeking a highly accomplished Senior Software Developer - ETL for an enterprise-level contract opportunity based in Toronto. In this role, you will take on a premier data engineering, ETL development, and business intelligence capacity, specializing in designing, building, and optimizing modern data lakehouse architectures and semantic reporting models.As a Senior Software Developer - ETL, you will bridge the gap between complex source datasets, ent

Our Toronto based client is looking for a Senior Software Developer – Java Kafka GCP to join their growing team.Work Model: Hybrid – 3 days/week in officeHours: 37.5 hours/week12 month contractAre you a hands-on Java engineer who loves building high-performance, scalable technology that actually matters?We’re looking for a Senior Software Developer to join a team building a next-generation data platform for a Cash Equities business — a critical platform

We are seeking an experienced Senior Software Developer - CRM to lead the technical configuration, design, development, and integration of enterprise Oracle Siebel CRM solutions. In this role, you will translate complex technical specifications into scalable, thoroughly tested CRM applications, custom Open UI interfaces, and cross-platform integrations. Leveraging deep expertise in Siebel Tools, Open UI architecture (Presentation Models and Physical Render

We are seeking an experienced Senior Software Developer - ETL to lead and oversee the end-to-end data and document migration strategy for enterprise modernization initiatives. In this role, you will be responsible for analyzing, profiling, cleansing, and transforming legacy data structures and document attachments into modernized cloud database solutions. Leveraging advanced ETL tools, complex SQL development, and relational database expertise across Oracl

We are seeking an experienced Senior Software Developer - ETL to lead the technical design, development, and sustainment of scalable, production-grade data pipelines, reusable data services, and integration frameworks. In this role, you will enable enterprise artificial intelligence, analytics, and business intelligence initiatives by transforming raw structured and unstructured data into governed, high-quality, and AI-ready assets. Leveraging advanced Pyt

We are seeking a seasoned Senior Software Developer - Full Stack to lead the technical design, development, integration, and maintenance of large-scale enterprise web applications and platform services. In this role, you will be responsible for creating reusable platform components and building microservices across user-interface, API, workflow, integration, and data-access layers. Leveraging deep hands-on Java expertise, relational database technologies,

We are seeking a seasoned Senior Software Developer - Full Stack to lead the technical design, development, integration, and maintenance of large-scale enterprise web applications and platform services. In this role, you will be responsible for creating reusable platform components and building microservices across user-interface, API, workflow, integration, and data-access layers. Leveraging deep hands-on Java expertise, relational database technologies,

We are seeking an experienced Senior Software Developer - ERP / Case Management with specialized expertise in Oracle PeopleSoft Human Capital Management (HCM) to deliver digital solutions across large-scale enterprise environments. In this role, you will work within an Agile, multi-disciplinary team to design, build, test, and maintain digital workflows, self-service capabilities, and business process automation solutions. Leveraging deep technical experti

We are seeking an experienced Senior Software Developer - Full Stack to lead the architecture, design, implementation, and integration of event-driven digital health applications. In this role, you will modernize application workflows by replacing legacy polling mechanisms with real-time, subscription-driven event architectures using FHIR Subscription and SubscriptionTopic models. Leveraging expertise across Java, Node.js, AWS serverless technologies, Reac

We are seeking an experienced Senior Software Developer - Full Stack to lead the maintenance, enhancement, and production support of a cloud-hosted enterprise web application and its integrated mobile field data capture platform. In this role, you will design, develop, and optimize end-to-end software solutions connecting core web repositories with geospatial mapping systems. Leveraging deep expertise in Java, Spring Boot, Angular, Microsoft Azure cloud se

We are seeking an experienced Senior Software Developer - Full Stack for a 6-month contract role based in Toronto (Hybrid: up to 3 days/week on-site). In this role, you will design, build, and support large-scale enterprise integration solutions, complex APIs, and containerized applications. You will collaborate closely with cross-functional teams and stakeholders to translate business requirements into robust, scalable enterprise systems while ensuring hi

We are seeking an experienced Senior Software Developer - Front End to lead the front-end customization, user interface design, and web mapping development for enterprise spatial applications. In this role, you will translate complex technical systems specifications into responsive, accessible, and user-friendly web interfaces. Utilizing advanced GIS SDKs, JavaScript/TypeScript, and modern front-end frameworks, you will build and extend custom web map view

We are seeking an experienced Senior Software Developer - Front End to lead the design, development, testing, and maintenance of accessible, responsive, and user-facing capabilities for enterprise web applications. In this role, you will translate approved wireframes, user stories, and design specifications into reusable, component-based front-end applications. Utilizing modern JavaScript and TypeScript frameworks, you will integrate user interfaces with R