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12 results for Senior Data Architect in Mississauga, ON

Senior IT Security Engineer
  • North York, ON
  • onsite
  • Permanent
  • 120000 - 130000 CAD / Yearly
  • <p><strong><u>This job posting is for a current vacancy with our client. Our client has multiple offices in Canada. This position is open to candidates in Toronto, Vancouver and Calgary.</u></strong></p><p><br></p><p>We are looking for a Senior Information Security Engineer to join a nationwide Technology team, and support a well-established insurance company. This role works closely with Infrastructure and Information Security leaders to strengthen the company’s security posture, ensure system reliability, and support the ongoing evolution of enterprise security practices.</p><p><br></p><p>In this position, you will play a key role in implementing and maintaining security systems, documenting policies and procedures, troubleshooting complex issues, and monitoring environments to ensure compliance, reliability, and availability.</p><p><br></p><p><strong>In this role, you will:</strong></p><p><br></p><ul><li>Support the implementation and maintenance of cybersecurity systems and controls.</li><li>Work with technologies including firewalls, vulnerability scanners, SIEM tools, and related platforms.</li><li>Assist with IT management infrastructure such as automated tasking, standard builds, monitoring systems, paging tools, patch deployment, and application deployment.</li><li>Serve as a senior member of the Vulnerability Management, Incident Management, and Security Configuration teams.</li><li>Troubleshoot and resolve Tier 3 technical issues.</li><li>Respond to, mitigate, and recover from assigned security events.</li><li>Conduct vulnerability testing, scanning, and documentation.</li><li>Monitor for security breaches and suspicious activity.</li><li>Provide mentorship, guidance, and knowledge transfer to other team members.</li><li>Maintain and update cybersecurity and IT documentation, including policies, procedures, and technical standards.</li></ul>
  • 2026-03-30T00:00:00Z
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>
  • 2026-04-04T00:00:00Z
Senior Full Stack Developer
  • Mississauga, ON
  • onsite
  • Permanent
  • 100000 - 115000 CAD / Yearly
  • <p>We are seeking a talented <strong>Senior Full Stack Developer</strong> 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>
  • 2026-04-09T00:00:00Z
Senior Auditor
  • North York, ON
  • onsite
  • Permanent
  • 75000 - 90000 CAD / Yearly
  • <p>We are looking for an experienced<strong> Senior Auditor </strong>to join a service-based organization in Ontario. In this role, you will help strengthen governance, improve internal controls, and support informed decision-making through well-executed audit work. The successful candidate will bring strong analytical judgement, a practical approach to risk assessment, and the ability to communicate findings clearly to stakeholders at multiple levels.</p><p><br></p><p><strong>Responsibilities</strong>:</p><p>• Lead internal audit assignments from initial scoping through fieldwork, assessment, and final reporting in partnership with the Manager, Internal Audit.</p><p>• Develop audit approaches that address key operational, financial, and compliance risks while aligning with established departmental expectations and industry standards.</p><p>• Examine processes, controls, and business systems to identify gaps, assess exposure, and recommend realistic improvements.</p><p>• Gather and evaluate supporting evidence, interpret results, and translate observations into meaningful insights for management.</p><p>• Prepare clear audit reports that explain issues, underlying causes, potential business effects, and recommended corrective actions for leadership and board-level audiences.</p><p>• Track outstanding audit issues and follow up with stakeholders to confirm that remediation plans are implemented within expected timelines.</p><p>• Contribute to ongoing risk management efforts by highlighting control weaknesses and advising on opportunities for continuous improvement.</p><p>• Support ad hoc financial and operational reviews as needed to address emerging concerns or priority business matters.</p>
  • 2026-04-20T00:00:00Z
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><br></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><br></p><p><strong>Key Responsibilities:</strong></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>
  • 2026-04-07T00:00:00Z
Senior Accountant
  • North York, ON
  • onsite
  • Permanent
  • 90000 - 120000 CAD / Yearly
  • <p>Robert Half is working closely with a client who is seeking an experienced Senior Accountant for a newly created, full-time, on-site role, reporting to the Controller. This position will play a key role in advancing financial reporting, strengthening internal controls, and supporting the organization’s expanding operational needs. There is also potential for growth into an Assistant Controller position.</p><p> </p><p><strong>Key Responsibilities:</strong></p><ul><li>Perform account reconciliations and maintain lead sheet tracking.</li><li>Prepare ad-hoc financial reports and analyses for leadership.</li><li>Oversee accounts receivable tracking, ensuring timely follow-up and reporting.</li><li>Support budgeting, including preparation, monitoring, and variance analysis.</li><li>Prepare detailed cost reports for internal and external stakeholders.</li><li>Track contract renewals and maintain related documentation.</li><li>Assist with month-end and year-end close processes.</li><li>Recommend and help implement improvements to financial processes and internal controls.</li></ul><p><strong>Additional Duties:</strong></p><ul><li>Complete HST reconciliations and ensure accurate, timely CRA remittances.</li><li>Track and pay vendors using the electronic payee banking system.</li><li>Prepare and manage cost-sharing invoices.</li><li>Reconcile charitable trust associated with annual events.</li><li>Review and reconcile staff gas receipts and grievance trust activities.</li><li>Assist with audit preparation, including schedules and documentation.</li></ul>
  • 2026-03-31T00:00:00Z
Senior Accountant
  • Welland, ON
  • onsite
  • Permanent
  • 85000 - 95000 CAD / Yearly
  • <p>We are seeking a <strong>Senior Accountant</strong> to join our client&#39;s Controlling team. Our client is a<strong> global, publicly traded manufacturing organization in the Niagara Region. </strong>This role plays a critical part in ensuring the financial integrity and statutory compliance of the Canadian legal entity. You will work closely with regional shared service teams, local business partners, and operations -- making this an ideal opportunity for a finance professional who thrives in a highly collaborative, onsite environment and is eager to learn, grow, and build a long-term career within a global organization. This is a hands-on role offering exposure to complex accounting matters, cross-border collaboration, and meaningful interaction with business and finance leadership.</p><p><br></p><p><strong>Why Join </strong></p><ul><li><strong>Onsite collaboration:</strong> Be part of a dynamic, in‑office finance team that values real-time problem solving, mentorship, and cross-functional partnership</li><li><strong>Career growth: </strong>Gain exposure to global operations, leadership teams, and complex accounting topics within a public company environment</li><li><strong>Learning &amp; development:</strong> Support for professional accounting designation, continuous learning, and hands-on experience with IFRS, statutory reporting, and audits</li><li><strong>Global impact: </strong>Collaborate with international colleagues and shared service teams while supporting Canadian entities within a global footprint</li></ul><p><strong>Key Responsibilities</strong></p><ul><li>Ensure accurate and timely financial accounting and reporting, including local statutory reporting</li><li>Execute and oversee period-end close processes, ensuring timeliness and accuracy</li><li>Review outputs prepared by shared service teams, ensuring completeness and accuracy</li><li>Perform and review balance sheet reconciliations and support action plans for open items</li><li>Provide input for judgmental journal entries during period-end processes</li><li>Oversee billing and customer invoicing activities performed by shared services</li><li>Act as a key interface between shared services and local business teams to resolve escalations and clarify financial transactions</li><li>Support resolution of escalated supplier inquiries</li><li>Provide ad hoc financial analysis and support to the business</li><li>Ensure full compliance with company control frameworks, accounting standards, and policies</li><li>Drive and support continuous improvement initiatives</li><li>Assist with preparation of corporate tax filings, including supporting schedules and working papers</li><li>Prepare tax returns and related documentation</li><li>Support external and internal audits through preparation of audit schedules and documentation</li></ul>
  • 2026-03-23T00:00:00Z
Senior Accountant
  • Mississauga, ON
  • onsite
  • Permanent
  • 80000 - 90000 CAD / Yearly
  • <p>Our client, in the Greater Toronto Are (GTA), is seeking a <strong>Senior Accountant</strong> with strong <strong>P&amp;C insurance</strong> experience to support financial reporting, reinsurance, and close processes while partnering with IT on finance automation initiatives.</p><p><br></p><p><strong>What You’ll Do</strong></p><ul><li>Lead month‑end, quarter‑end, and year‑end close activities</li><li>Prepare and review financial statements, reconciliations, and journal entries</li><li>Oversee underwriting and reinsurance system close timelines</li><li>Prepare reinsurance reports for internal stakeholders and reinsurers</li><li>Support audits, regulatory filings, and P&amp;C reporting</li><li>Partner with IT on finance systems and automation initiatives</li><li>Drive process improvements and strengthen internal controls</li></ul><p><br></p><p><br></p>
  • 2026-03-26T00:00:00Z
Senior Accountant
  • Toronto, ON
  • onsite
  • Permanent
  • 90000 - 110000 CAD / Yearly
  • <p>A respected and expanding organization in the mining sector is seeking a Senior Accountant for its Canadian office in Toronto. This position offers the opportunity to play a key role in financial reporting and analysis, while contributing to an experienced finance team within a dynamic industry.</p><p><br></p><p><strong>Key Responsibilities:</strong></p><ul><li>Prepare and review financial statements to ensure compliance with applicable standards (IFRS/ASPE).</li><li>Oversee month-end and year-end close processes, including journal entries, reconciliations, and accruals.</li><li>Lead the preparation and documentation for internal and external audits.</li><li>Assist in forecasting, budgeting, and variance analysis to support strategic decision-making.</li><li>Maintain and enhance internal controls and accounting procedures to ensure accuracy and compliance.</li><li>Support tax reporting and regulatory filings as needed.</li><li>Mentor junior accounting staff and provide guidance on best practices and technical issues.</li><li>Collaborate with cross-functional teams to ensure timely and accurate financial information.</li></ul><p><br></p>
  • 2026-03-27T00:00:00Z
Senior Tax Associate
  • North York, ON
  • onsite
  • Permanent
  • 100000 - 120000 CAD / Yearly
  • <p>We are looking for a dedicated <strong>Senior Tax Associate</strong> to join our dynamic team in Toronto, Ontario. In this role, you will leverage your expertise to manage complex tax compliance tasks, conduct research, and provide strategic guidance to clients. This is a great opportunity for someone with a strong background in tax accounting and software systems who pays close attention to detail.</p><p><br></p><p><strong>Responsibilities</strong>:</p><p>• Prepare and review tax returns for individuals, corporations, partnerships, and trusts, ensuring accuracy and compliance with regulations.</p><p>• Conduct comprehensive research on tax-related matters to provide informed recommendations and solutions.</p><p>• Utilize specialized accounting software, including CaseWare and CCH ProSystem Fx, to streamline tax processes and reporting.</p><p>• Collaborate with clients to address inquiries and resolve tax-related issues effectively.</p><p>• Assist with quarterly and annual tax filings, ensuring all deadlines are met.</p><p>• Stay updated on changes in state and federal tax laws to maintain compliance and deliver informed advice.</p><p>• Provide mentorship and guidance to less experienced team members, fostering growth within the department.</p><p>• Analyze financial data and documents to identify tax-saving opportunities and ensure proper reporting.</p><p>• Support LLP clients with tailored tax services and solutions.</p>
  • 2026-04-07T00:00:00Z
Senior Analyst, Performance & Reporting (Capital Markets)
  • Toronto, ON
  • onsite
  • Temporary
  • 47.5 - 55 CAD / Hourly
  • <p><strong>Senior Analyst, Capital Markets Performance &amp; Reporting (12-Month Contract)</strong></p><p><br></p><p>We are seeking a highly motivated <strong>Senior Performance Analyst</strong> to join a Capital Markets Finance team within a leading institutional investment environment. This role focuses on performance measurement, attribution, and reporting across complex credit and multi-asset portfolios within capital markets, while supporting the evolution toward more dynamic and digitized reporting solutions.</p><p><br></p><p>This is a 12-month fixed-term contract based in downtown Toronto.</p><p>Work model: 4-days onsite required.</p><p><br></p><p><strong>Key Responsibilities</strong></p><ul><li>Own the <strong>end-to-end daily performance reporting</strong> process for credit-focused investment portfolios, ensuring accuracy and timeliness</li><li>Analyze and validate <strong>security-level performance data</strong>, including accruals, valuations, and P&amp;L, and ensure proper aggregation across portfolios</li><li>Investigate and resolve <strong>data discrepancies across multiple systems</strong>, working closely with technology and operations teams</li><li>Deliver <strong>performance attribution analysis</strong>, identifying key drivers of returns and providing meaningful insights to stakeholders</li><li>Build, maintain, and enhance <strong>interactive dashboards and reporting tools using Power BI</strong></li><li>Utilize <strong>SQL</strong> to extract, transform, and manage large datasets for reporting and analysis</li><li>Leverage <strong>advanced Excel</strong> for complex financial modeling, reconciliation, and data analysis</li><li>Interpret and communicate results across various <strong>capital markets products</strong>, including credit, fixed income, and equity portfolios</li><li>Partner with stakeholders across <strong>finance, risk, operations, and investment teams</strong> to support evolving reporting needs</li><li>Contribute to <strong>process improvements and automation initiatives</strong>, enhancing scalability and data quality</li><li>Monitor <strong>market trends and macroeconomic developments</strong>, assessing impact on portfolio performance</li></ul>
  • 2026-04-21T00:00:00Z
Sr. Analyst, Performance, Reporting & Attribution
  • Toronto, ON
  • onsite
  • Permanent
  • 100000 - 130000 CAD / Yearly
  • <p>Robert Half Canada is seeking a Senior Analyst for a leading Capital Markets organization. This role will support the Investment Finance &amp; Operations team in delivering accurate and insightful performance measurement, attribution, and reporting for multi-asset class portfolios.</p><p><br></p><p><strong>Key Responsibilities:</strong></p><ul><li>Prepare and analyze performance and attribution reports at business unit, strategy, and asset class levels.</li><li>Create exposure reports by asset class, geography, currency, and sector to enable effective portfolio oversight.</li><li>Develop and present data-driven insights using PowerPoint and Power BI dashboards for stakeholders and senior leaders.</li><li>Support digitization and automation of reporting, enhancing scalability and accuracy.</li><li>Deliver actionable analysis to senior management on performance drivers and portfolio positioning.</li><li>Foster partnerships with Capital Markets, Risk, and Finance groups to ensure alignment with evolving strategies.</li><li>Monitor market trends and macroeconomic factors impacting investment performance.</li><li>Stay current with industry performance measurement standards, including GIPS.</li><li>Identify and implement process improvements and actively participate in team projects and cultural initiatives.</li></ul><p><br></p>
  • 2026-04-01T00:00:00Z