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11 results for Senior Application Developer Java in Toronto, ON

Senior Full Stack Developer
  • Mississauga, ON
  • onsite
  • Permanent
  • 100000 - 115000 CAD / Yearly
  • <p>We are seeking a talented Senior Full Stack Developer to join our client&#39;s team in Mississauga, Ontario. </p><p><br></p><p>The successful candidate will work closely with the business to identify and define the best solutions to address challenges faced by both our customers and internal operations. The Senior Developer will translate functional and non‑functional requirements into clear designs and implementation strategies, ensuring the effective delivery of business applications. They will be responsible for the quality of all deliverables, ensuring that solutions are reliable, fit for purpose, and built to be supportable and maintainable over the long term.</p><p><br></p><p><strong>Technical Skills</strong></p><ul><li><strong>Programming:</strong> J2EE, JPA, Java Web Services (RESTful), Spring Framework, Angular, Maven</li><li><strong>Tools:</strong> Jira, Confluence, GitHub</li><li><strong>Databases:</strong> Relational database systems (ideally Oracle), PL/SQL, SQL Query development</li><li><strong>Operating Systems:</strong> Linux, HP‑UX or other UNIX variants, Windows</li><li><strong>Architecture:</strong> Experience in multi‑platform distributed environments, web‑based architectures, and microservices</li><li><strong>Design:</strong> Familiarity with standard design patterns and UML</li><li><strong>DevOps:</strong> Experience with CI/CD automation processes</li></ul>
  • 2026-03-05T00:00:00Z
CAN - Software Developer: III (Senior)
  • Mississauga, ON
  • onsite
  • Temporary
  • 45 - 60 CAD / Hourly
  • Our client is seeking an experienced Software Developer to support and enhance existing NPC applications. This role involves a mix of application development, configuration updates, and database work, with a strong emphasis on hands-on coding and SQL Server development. The ideal candidate is technically strong, analytical, and comfortable working both independently and as part of a collaborative team. <br> This is an active contract to permanent opportunity with a pay range of $45 - $60/hour (CAD) and a hybrid schedule (3 days onsite in downtown Toronto). <br> Key Responsibilities Develop and maintain NPC applications through: Application code changes Configuration updates Database changes and stored procedure development Perform approximately 70% application development and 30% database work Write, modify, and optimize SQL Server stored procedures Collaborate with team members to analyze requirements and troubleshoot issues Ensure high-quality, maintainable, and well-documented code Participate in code reviews and version control practices <br> Must-Have Qualifications (4+ years) Strong experience with C# (7.0) Hands-on experience with ASP.NET WebForms (Framework 4.7) Strong SQL skills Experience with SQL Server 2019, including stored procedures Familiarity with GitHub or other version control systems Strong analytical and problem-solving skills Ability to work both independently and collaboratively Excellent verbal and written communication skills <br> Good-to-Have Qualifications (3+ years) Experience with AWS Experience building or consuming Web APIs Knowledge of XML Exposure to React.js Strong JavaScript skills Nice-to-Have System or application integration experience Relevant technical certifications This posting represents a current vacancy with our client. If this opportunity aligns with your experience, I’d be happy to connect and discuss further.   Our specialized recruiting professionals apply their expertise and utilize our proprietary AI to find you great job matches faster.
  • 2026-03-03T00:00:00Z
Senior Application Security Engineer (Offensive Security)
  • Toronto, ON
  • onsite
  • Permanent
  • 120000 - 140000 CAD / Yearly
  • <p>This is a hybrid opportunity (2–3 days per week onsite) based in Downtown Toronto.</p><p>Are you ready to help shape and grow an innovative Offensive Security team?</p><p>We are seeking an experienced cybersecurity professional who specializes in offensive security, application testing, and threat management within modern technology stacks—including low code/no code platforms and AI/ML pipelines.</p><p>In this strategic role, you will lead efforts to identify vulnerabilities, simulate adversarial threats, and enhance the organization&#39;s security posture across its cloud, application, and AI/ML environments. Candidates with proven success building offensive security teams, driving penetration testing and incident response programs, and securing AI/ML workflows are encouraged to apply.</p><p>Key Responsibilities:</p><ul><li>Lead and execute penetration tests on low code/no code platforms, uncovering misconfigurations and privilege escalation issues.</li><li>Conduct targeted assessments of AI/ML pipelines, models, and data flows to identify security gaps.</li><li>Evaluate CI/CD integrations and MLOps environments with a focus on risk mitigation.</li><li>Analyze web and mobile applications for vulnerabilities, including insecure APIs and injection threats.</li><li>Perform threat modeling and code analysis to support vulnerability remediation.</li><li>Monitor and respond to security incidents using SIEM technologies such as Splunk and Azure Sentinel.</li><li>Develop use cases that anticipate emerging threats, especially those related to AI/ML attack vectors.</li><li>Utilize industry-standard tools—Burp Suite, OWASP ZAP, Checkmarx, Veracode, Snyk—for comprehensive vulnerability assessments.</li><li>Conduct offensive API testing and simulate real-world adversarial scenarios.</li></ul><p><br></p>
  • 2026-03-03T00:00:00Z
Software Developer
  • Hamilton, ON
  • onsite
  • Permanent
  • 75000 - 85000 CAD / Yearly
  • <p>Robert Half is looking to hire a Software Developer for a client that is rapidly expanding in the West GTA Area. This is an exciting full time / permanent opportunity that is offering growth, stability and excellent career growth / advancement opportunities. Please take a look at the summarized information below and apply if you are a good fit!</p><p><br></p><p><strong>Role:</strong> Software Developer</p><p><strong>Type:</strong> Full time / Permanent</p><p><strong>Location:</strong> West GTA Region</p><p><strong>Compensation: </strong>$75k to $85k + Bonus + 3 Weeks vacation (Additional PTO) + Full Benefits (Medical, Dental and Vision) + RRSP Match 3% (5% after maxed) + Education Reimbursement Program + Full WFH Hardware</p><p><br></p><p><strong>Requirements:</strong></p><ul><li>5 to 8 years experience with Software Development (C# .NET)</li><li>React or Angular (Some Front End)</li><li>Proficiency in object-oriented languages and JavaScript technologies.</li><li>Strong knowledge of relational databases, including querying and performance optimization.</li><li>Solid working knowledge of current Internet technologies, web services, and secure web processing.</li><li>Familiarity with continuous integration and automated build pipelines is an asset.</li><li>Financial services or insurance industry experience is preferred.</li><li>Microsoft Visual Studio</li><li>MS SQL</li><li>Asset: AWS or Azure</li></ul>
  • 2026-02-18T00:00:00Z
Senior Quality Engineer
  • Mississauga, ON
  • onsite
  • Temporary
  • 35 - 50 CAD / Hourly
  • <p>This job posting is for a current contract vacancy with our client, based in Toronto, Ontario, with a hybrid work model. We are seeking a Senior Quality Engineer with strong hands-on experience in Tosca automation and manual testing. This role focuses on designing and executing robust test coverage across UI, APIs, and data, while partnering closely with Product Owners and development teams to ensure quality delivery. </p><p><strong> </strong></p><p><strong>Key Responsibilities: </strong></p><p>·      Design, create, execute, and maintain manual and automated test cases aligned to acceptance criteria. </p><p>·      Develop, enhance, and optimize Tosca automation frameworks and reusable modules. Execute functional, regression, API, database, and performance tests. </p><p>·      Own regression test strategy and coverage for assigned applications. </p><p>·      Validate backend services, integrations, and complex data flows. </p><p>·      Manage test planning, execution, and reporting using qTest. </p><p>·      Log, triage, and validate defects using Azure DevOps. </p><p>·      Provide test estimates, risk assessments, and quality recommendations. </p><p>·      Act as a QA point of contact within Agile teams. </p><p>·      Participate in and contribute to Agile ceremonies. </p><p>·      Deliver clear test metrics, status reporting, and release readiness assessments. </p>
  • 2026-03-03T00:00:00Z
Senior Data Architect
  • Mississauga, ON
  • remote
  • Temporary
  • 100 - 150 CAD / Hourly
  • <p>Our client is seeking a Senior IT Architect to lead a large-scale data migration from Dell ECS–based on-prem environments to AWS cloud for a major international banking client. This role focuses on architecture, security, and technical leadership for a complex, regulated migration program and is not an application development role.</p><p><br></p><p>What You’ll Be Doing</p><ul><li>Lead the end-to-end data migration architecture and execution (3TB+ of data)</li><li>Design and deliver migration strategies from Dell ECS to AWS</li><li>Own technical architecture decisions, including migration approach, tooling, cutover, and rollback planning</li><li>Ensure security, compliance, and data integrity throughout the migration lifecycle</li><li>Collaborate with a cross-functional team (approximately 6 people, including a Project Manager)</li><li>Act as the technical lead, guiding engineers and aligning with security and stakeholder teams</li></ul><p>Required Skills &amp; Experience</p><ul><li>Senior-level experience as an IT Architect</li><li>Proven experience leading large-scale enterprise data migrations</li><li>Strong hands-on experience with Dell ECS (Elastic Cloud Storage) — mandatory</li><li>Broader Dell platform experience, including:</li><li>Dell storage and Data Domain</li><li>Networking and supporting platforms</li><li>Strong experience designing and migrating data to AWS cloud</li><li>Solid understanding of:</li><li>Secure data transfer, encryption, and access controls</li><li>Enterprise-scale storage and networking concepts</li><li>Experience working in regulated environments (banking or financial services experience is a strong asset)</li><li>Strong leadership, communication, and stakeholder management skills</li></ul><p>Nice to Have</p><ul><li>Banking or financial services experience</li><li>Experience supporting large international enterprise clients</li><li>AWS or Dell certifications</li></ul><p><br></p>
  • 2026-02-23T00:00:00Z
CAN - Software Developer: IV (Lead)
  • Mississauga, ON
  • onsite
  • Temporary
  • 60 - 75 CAD / Hourly
  • About the Role We’re looking for a solution-driven Dynamics 365 detail oriented to take ownership of the development side of Microsoft Dynamics 365. This isn’t a pure analyst or developer role — it’s ideal for someone who enjoys designing end-to-end solutions, collaborating across teams, and leading technical delivery in a lean, agile environment. You’ll partner closely with business stakeholders and the functional consultant to translate requirements into scalable, high-impact D365 solutions that support the Revenue Operations (RevOps) team. The environment is cloud-based D365, with a focus on Field Operations and Project Operations modules.     Key Responsibilities Lead solution design, configuration, and development for Microsoft Dynamics 365. Analyze business needs and design the right technical approach using Power Platform tools. Collaborate with stakeholders to define roadmaps, priorities, and solution delivery plans. Support integrations between D365 and other enterprise systems (Salesforce experience a plus). Drive implementation and continuous optimization of Field and Project Operations modules.     Top 3 Must-Haves Solutioning expertise with tools such as Power Automate, Logic Apps, and custom plug-ins. Strong configuration and functional knowledge across D365 modules. Proven ability to lead technical design and collaborate effectively with both business and IT teams.  
  • 2026-03-03T00:00:00Z
Front End Developer
  • Etobicoke, ON
  • onsite
  • Temporary
  • 40 - 50 CAD / Hourly
  • <p>We are looking for a <strong>Senior Front-End Developer</strong> for a 4–12+ week contract to help build a <strong>real-time, high-performance B2B platform</strong>. The client prefers a hybrid setup with the first week in-office, but strong fully remote candidates are welcome. You will transform UI designs into interactive, data-driven components that drive engagement and retention.</p><p><br></p><p><strong>Responsibilities:</strong></p><ul><li>Build and refine <strong>real-time UI components</strong> for live bidding and dashboards</li><li>Develop <strong>bid ladders, countdown timers, live indicators, and quick-action CTAs</strong></li><li>Implement <strong>WebSocket-driven updates</strong> and optimize React state management</li><li>Design <strong>micro-interactions and motion effects</strong> for smooth user experiences</li><li>Collaborate with Product, Marketing, and Operations teams</li><li>Support QA, performance testing, and release cycles</li></ul><p><br></p>
  • 2026-02-12T00:00:00Z
CAN - Software Engineer: IV (Lead)
  • Mississauga, ON
  • onsite
  • Temporary
  • 65 - 80 CAD / Hourly
  • We are seeking a Full Stack .NET Developer to design, build, and support enterprise-scale, data-driven applications that power critical business operations. This role is ideal for a hands-on engineer who thrives in a collaborative, large-enterprise environment and enjoys working across the full application stack. This Software Engineer is to join our client&#39;s team in Downtown Toronto, Ontario, 2 days a week in office. This is a long-term contract position, offering an excellent opportunity to work on innovative projects within a collaborative and dynamic environment. <br> Key Responsibilities Design, develop, and support full stack applications using C# and modern .NET (.NET Core / .NET 6+) Build and maintain scalable, secure APIs and backend services Develop front-end components using modern JavaScript frameworks (Angular, React, or equivalent) Design and optimize data models, queries, and database interactions for performance and reliability Partner with product owners, architects, data teams, and business stakeholders to deliver enterprise solutions Participate in architecture reviews, code reviews, and technical design discussions Ensure solutions align with Compass Group security, compliance, and architectural standards Support production systems, including troubleshooting and performance optimization Contribute to continuous improvement of development standards, tooling, and best practices.
  • 2026-02-25T00:00:00Z
Senior Fraud Analyst
  • North York, ON
  • onsite
  • Permanent
  • 90000 - 110000 CAD / Yearly
  • <p>Our client is looking to hire a Senior Fraud Analyst in the Greater Toronto area. The roe will work closely with stakeholders to set up the appropriate framework to mitigate fraud, build out capabilities, tools, and methods for preventing fraud. </p><p><br></p><p>Responsibilities Include: </p><p><br></p><p>• The ideal candidate would partner with stakeholders across the organization to ensure a strong approach to fraud management. </p><p>• Analyze trends and discover patterns to identify potential fraud risks and make strong recommendations. </p><p>• Recommend and assist with implementation of improvements to boost fraud detection and prevention capabilities across the organization. </p><p>• Work closely with Operations, Credit, Risk to address fraud related issues and recommend improvements to existing controls and processes to mitigate risks. </p>
  • 2026-02-26T00:00:00Z
AI Staff Software Engineer
  • North York, ON
  • onsite
  • Permanent
  • 120000 - 140000 CAD / Yearly
  • We are looking for an experienced AI Staff Software Engineer to join our team in Toronto, Ontario. In this role, you will lead the development and deployment of advanced AI systems, ensuring their integration across multiple platforms and teams. The ideal candidate will have deep expertise in AI technologies, strong problem-solving skills, and an ability to drive technical innovation in ambiguous environments.<br><br>Responsibilities:<br>• Design and implement cutting-edge AI systems with a focus on agentic AI technologies and workflows.<br>• Develop robust backend systems, APIs, and data pipelines to support scalable AI solutions.<br>• Collaborate with multidisciplinary teams to align technical strategies and ensure seamless integration across products.<br>• Lead the development of AI models and infrastructure, including planning, memory, tool usage, and evaluation.<br>• Optimize cloud infrastructure to enhance system reliability and performance.<br>• Translate complex problems into actionable solutions, delivering autonomous systems that meet business objectives.<br>• Mentor and guide engineering teams through advanced AI workflows and development processes.<br>• Drive technical innovation while ensuring the stability and scalability of deployed systems.<br>• Implement and manage workflow engines, asynchronous processing, queues, and streaming systems.<br>• Influence technical direction and foster collaboration across teams without formal authority.
  • 2026-02-13T00:00:00Z