16 results for Software Developer in St. Catharines, ON

Senior Software Engineer

Toronto, ON
onsite
Permanent
130000.00 - 150000.00 CAD / Yearly
This job posting is for a current vacancy with our client. This position is open to candidates in Vancouver, BC or Toronto, ON. A well-established organization in the financial industry is seeking a Senior Full-Stack Developer. As a Full Stack Developer, you will play a key role in shaping the future of critical business applications while helping modernize systems that have supported the business for decades. This is an opportunity for someone who enjoys variety, thrives in a collaborative environment, and wants exposure to both cutting-edge cloud technologies and complex enterprise systems. You will partner closely with developers, business stakeholders, and technical leaders to design, build, enhance, and support applications across a diverse technology landscape. From modern web applications and cloud-based solutions to legacy platforms and desktop tools, you'll have the opportunity to solve a wide range of technical challenges and influence how systems evolve over time. This role offers the chance to work across the full software development lifecycle, contribute to modernization initiatives, and help bring legacy applications into the modern era while ensuring they continue to support critical business functions. What you will do and how you will make an impact … <ul><li>Develop and support a diverse portfolio of business-critical applications across modern and legacy technology environments.</li><li>Enhance, maintain, and modernize enterprise applications that support core business operations using React and .NET Technologies.</li><li>Work across the full software development lifecycle, including design, development, testing, implementation, and support.</li><li>Collaborate closely with developers, business stakeholders, and technical leaders to deliver scalable and sustainable solutions.</li><li>Support both cloud-based applications and desktop applications used for high-volume operational processes.</li><li>Bring legacy applications into the modern era while ensuring stability and continuity for the business.</li><li>Contribute to architectural discussions and help shape the future direction of the application landscape.</li><li>Participate in a highly collaborative environment that emphasizes pair programming, knowledge sharing, and team-based problem solving.</li></ul>
2026-07-24T19:28:46Z

CAN - Software Developer: II (Intermediate)

Mississauga, ON
remote
Temporary
26.00 - 34.00 CAD / Hourly
We are looking for an intermediate Technical Developer to join a collaborative team in Mississauga, Ontario, supporting enterprise applications built with Microsoft Power Platform. This Long-term Contract opportunity is ideal for someone who enjoys creating practical business solutions, contributing to dashboard and automation initiatives, and working closely with cross-functional teams in a hybrid environment. The successful candidate will help enhance Power Apps, support Power BI reporting, and provide dependable application support while participating in Agile delivery practices. Responsibilities: • Develop, enhance, and maintain Power Apps solutions that support business operations in an enterprise setting. • Contribute to the design and improvement of Power Automate workflows to streamline manual activities and increase efficiency. • Support the creation, maintenance, and refinement of Power BI dashboards and reporting assets for business users. • Participate in daily scrum meetings and work collaboratively with team members to deliver project tasks on schedule. • Provide Level 1 and Level 2 support for Power Platform applications by investigating issues, resolving defects, and assisting users. • Respond to ad hoc requests related to application updates, reporting needs, and automation enhancements. • Help document solution changes, testing outcomes, and support activities to maintain consistency across the development lifecycle. • Work within established enterprise standards and governance practices when building and updating Power Platform solutions.
2026-08-07T13:18:40Z

Software Engineer (Java)

Toronto, ON
onsite
Permanent
100000.00 - 130000.00 CAD / Yearly
We are helping a growing and highly innovative financial services organization with a new Java Engineer to join their Payments Technology team. This is an exciting opportunity for a developer who enjoys solving complex problems, wearing multiple hats, and gaining exposure to a broad range of technologies, projects, and business functions. You'll work closely with senior leaders, product teams, operations, compliance, and engineering stakeholders to help build and enhance critical payment platforms supporting ACH, Wires, Real-Time Payments (RTP), FedNow, and other modern payment networks. We're looking for someone who is resourceful, entrepreneurial, curious, and excited by the opportunity to make a visible impact within a fast-moving environment. What you will do and how you will make an impact …<ul><li>You will play a key role in the development and evolution of modern payment processing platforms that support critical banking and financial transactions.</li></ul>In this position, you will:<ul><li>Design, develop, and maintain backend applications and APIs using Java and Spring Boot.</li><li>Work across the full software development lifecycle, from requirements gathering and design through implementation, testing, deployment, and production support.</li><li>Partner with Product, Operations, Compliance, QA, and engineering teams to deliver secure and scalable payment solutions.</li><li>Develop integrations with banking partners, third-party providers, and internal systems.</li><li>Support highly reliable, secure, and compliant transaction processing platforms.</li><li>Participate in architecture discussions, code reviews, troubleshooting, and continuous improvement initiatives.</li><li>Contribute to monitoring, observability, and operational excellence efforts alongside DevOps and production support teams.</li></ul>Why we are excited about you ... <ul><li>You thrive in environments where you can take ownership, solve problems independently, and continuously learn new technologies and business domains.</li><li>You are naturally curious and enjoy exploring how complex systems work.</li><li>You take initiative and can navigate ambiguity with confidence.</li><li>You understand financial services, and want exposure to modern payments technology.</li></ul>
2026-08-14T16:08:44Z

Senior Quality Assurance Engineer

Toronto, ON
onsite
Permanent
120000.00 - 140000.00 CAD / Yearly
This job posting is for a current vacancy with our client. Are you passionate about automation, software quality, and modern engineering practices? We are seeking a Senior Associate, Quality Assurance Automation Engineer to join a growing technology team focused on delivering highly reliable, secure, and scalable applications within a regulated environment. What you will do and how you will make an impact … As a key member of the engineering organization, you will design, develop, and maintain automated testing solutions that are embedded directly into modern CI/CD pipelines. You will work closely with software developers, DevOps professionals, and product teams to ensure that quality is built into every stage of the development process. A significant focus of this role will be supporting critical payment systems, including wire transfers, ACH transactions, and real-time payment capabilities. You will help validate both internally developed applications and several mission-critical third-party platforms that support payment processing and compliance functions. This role is ideal for someone who enjoys building automation from the ground up. The organization currently has a strong manual testing presence and is looking for an experienced engineer who can help accelerate the transition to automated testing. Initially, there will be some hands-on testing responsibilities, but the long-term goal is to increase automation coverage, improve testing efficiency, and support faster delivery of new features. <ul><li>Design, develop, and maintain automated test suites that are integrated into CI/CD pipelines and support rapid, high-quality software releases.</li><li>Build and enhance scalable automation frameworks for API, integration, end-to-end, and regression testing.</li><li>Implement automated quality gates that validate code changes, enforce testing standards, and prevent defects from reaching production.</li><li>Partner closely with software engineers, DevOps teams, and product stakeholders to ensure quality is embedded throughout the software development lifecycle.</li><li>Develop testing strategies for cloud-native applications running in AWS environments, ensuring reliable performance across multiple environments.</li><li>Validate application functionality, configurations, integrations, and feature flag implementations across development, testing, and production environments.</li><li>Establish and maintain test data, test environments, and automation best practices to support efficient software delivery.</li><li>Mentor and support junior QA and automation team members, helping to elevate technical capabilities and testing standards across the organization.</li></ul>
2026-08-13T14:13:40Z

SharePoint Developer

Kitchener, ON
onsite
Temporary
65.00 - 75.00 CAD / Hourly
We are looking for a SharePoint Developer to support and enhance collaboration tools for a team based in Kitchener, Ontario. This Long-term contract position focuses on administering SharePoint environments, improving document management practices, and helping users get the most from Microsoft 365 applications. The ideal candidate will combine strong technical knowledge with a practical, service-oriented approach to support, access management, and platform optimization. Responsibilities:• Administer SharePoint sites by maintaining structure, access levels, and user permissions to support secure and efficient collaboration.• Build and organize document libraries, lists, workflows, and team sites that align with operational needs and information management standards.• Deliver guidance and training sessions to employees on SharePoint functionality, effective usage methods, and sound document control practices.• Respond to user questions, diagnose platform issues, and resolve SharePoint-related problems in a timely manner.• Oversee key Microsoft 365 tools such as Teams, OneDrive, Outlook, and associated services to ensure reliable day-to-day use.• Handle user account updates, access requests, and permission changes while following established security requirements.• Monitor platform performance and recommend improvements that strengthen usability, governance, and collaboration across teams.
2026-08-10T17:18:39Z

Senior Cloud Engineer

Toronto, ON
onsite
Permanent
120000.00 - 140000.00 CAD / Yearly
This job posting is for a current vacancy with our client. Join a growing financial services organization that powers innovative payments, lending, and banking solutions. We are looking for a Senior Cloud Engineer to help design, build, and support a secure, scalable, and highly available cloud infrastructure. You will play a key role in modernizing cloud operations, improving system reliability, strengthening security controls, and enabling development teams to deliver applications efficiently and securely. What you will do and how you will make an impact … You will be responsible for maintaining and advancing the organization's cloud infrastructure while ensuring reliability, security, and operational excellence. <ul><li>Design, deploy, and manage scalable, secure AWS cloud environments using industry best practices.</li><li>Build and maintain Infrastructure-as-Code solutions using Terraform to automate provisioning and configuration management.</li><li>Implement and support cloud security controls, governance frameworks, auditing processes, and compliance requirements.</li><li>Collaborate with development teams to containerize applications and optimize deployment processes utilizing Docker and cloud-native technologies.</li><li>Monitor system health, performance, and availability while proactively identifying and resolving issues before they impact the business.</li><li>Lead incident response efforts, coordinate cross-functional teams during outages, and drive root cause analysis and remediation activities.</li><li>Develop automation tools, scripts, and operational workflows to improve efficiency and reduce manual effort.</li><li>Implement monitoring, alerting, and automated remediation solutions to ensure system reliability.</li><li>Support complex networking environments, including hybrid cloud architectures and AWS networking services.</li></ul>
2026-08-10T14:53:40Z

Lead Android Developer

Toronto, ON
remote
Temporary
50.00 - 70.00 CAD / Hourly
We are looking for an experienced Lead Android Developer to join a consumer-focused team building high-impact mobile experiences for users across Ontario. This long-term contract opportunity is fully remote and offers the chance to contribute to a widely used Android application while working closely with product, design, and engineering partners. The role centres on creating scalable features, improving performance and reliability, and delivering high-quality customer experiences in a fast-moving environment. Responsibilities:• Design, build, and enhance Android features for a high-traffic mobile application using modern development practices and Kotlin-based tooling.• Create engaging customer-facing experiences across key product journeys such as content discovery, purchasing flows, and live order visibility.• Develop and refine dynamic feed and recommendation-oriented interfaces that support personalized engagement within the Android app.• Partner with product managers, designers, and cross-functional teammates to translate business goals into well-executed mobile solutions.• Deliver production-ready code at a steady pace while supporting experiments that influence growth, engagement, and retention.• Strengthen application quality by improving performance, maintaining stability across a wide range of Android devices, and addressing challenges in low-connectivity conditions.• Investigate and resolve issues across owned features from initial diagnosis through implementation and validation.• Contribute to a clean, maintainable, and modular codebase that supports long-term scalability and efficient collaboration.• Work with internal development and deployment platforms, version control practices, and CI workflows to support reliable feature delivery.
2026-08-07T07:04:38Z

Infrastructure Engineer

Toronto, ON
onsite
Temporary
45.00 - 55.00 CAD / Hourly
We are looking for an Infrastructure Engineer to support a leading Financial Services organization in Toronto, Ontario. This Long-term Contract opportunity is well suited to a mid-level candidate who brings strong hands-on experience across cloud services, core infrastructure, networking, and operational support. The role combines project delivery with day-to-day administration, requiring someone who can strengthen platform reliability, contribute to technical improvements, and work effectively with both technical teams and business partners. This position follows a hybrid model with 1-2 days per week in the office. Responsibilities: • Oversee the administration, configuration, and ongoing support of cloud and infrastructure environments, including Microsoft 365 platforms, service management tools, and related enterprise systems. • Maintain and enhance network operations across LAN, WAN, firewall, and wireless infrastructure using technologies such as Cisco, Checkpoint, and Aruba. • Lead technical workstreams for infrastructure initiatives by planning implementations, assessing dependencies, and coordinating delivery with project managers, developers, database specialists, vendors, and other stakeholders. • Diagnose complex infrastructure issues, perform root cause analysis, and implement sustainable solutions to improve service stability and performance. • Prepare clear technical documentation for solution design, operational procedures, support activities, and project milestones throughout the delivery lifecycle. • Support governance, controls, and operational best practices by contributing to asset management, incident handling, change processes, and vendor coordination. • Participate in modernization efforts, remediation activities, system upgrades, and platform enhancements that improve resiliency, security, and business alignment. • Monitor infrastructure health, capacity, and alerting across core systems, and help develop recovery-focused approaches including disaster recovery readiness. • Apply security principles and sound engineering practices to infrastructure design, administration, and support activities. • Contribute to both business-as-usual operations and project-based assignments while managing priorities effectively in a fast-paced environment.
2026-07-21T19:28:42Z

Mobile Developer

Toronto, ON
onsite
Temporary
50.00 - 60.00 CAD / Hourly
We are looking for a Mobile Developer to support innovative mobile solutions within the hospitality industry in Toronto, Ontario. This long-term contract position is ideal for someone who enjoys building high-quality mobile applications, collaborating across technical teams, and creating user-focused mobile experiences. The successful candidate will contribute to both iOS and Android mobile features while helping deliver reliable, scalable applications. Responsibilities:• Design, build, and enhance mobile applications across iOS and Android platforms that deliver seamless and intuitive user experiences.• Collaborate with cross-functional teams to translate business needs into effective mobile features and technical solutions.• Develop, test, debug, and optimize mobile applications using modern mobile development frameworks and technologies.• Integrate mobile applications with backend services to support data flow, functionality, and overall system reliability.• Create user interface components that are visually clear, responsive, and aligned with usability best practices.• Partner closely with Product, Business, and Design stakeholders to gather requirements and deliver roadmap-driven features.• Track development tasks, priorities, and progress using Jira while contributing to an organized delivery process.• Support mobile compatibility and performance across both iOS and Android platforms.• Contribute to code quality initiatives, application architecture decisions, and ongoing enhancement of mobile development best practices.
2026-08-15T01:18:40Z

Senior DevOps Lead

Oakville, ON
onsite
Temporary
100.00 - 110.00 CAD / Hourly
We are looking for a Senior DevOps Lead to support a long-term contract opportunity in Oakville, Ontario within the energy and natural resources sector. This role is suited to a senior technical leader who can shape cloud and DevOps strategy, strengthen secure delivery practices, and guide architecture decisions across complex environments. The successful candidate will work closely with key stakeholders and technical leads while providing mentorship to team members and helping advance scalable, reliable platform operations. This is a 6 month contract role to start, hybrid (2 days in office) for our client in Oakville, Ontario. Responsibilities:• Define and drive the overall DevOps and cloud roadmap, with a strong emphasis on Azure-based solutions and enterprise delivery practices.• Lead the design and continuous improvement of CI/CD pipelines to enable efficient, secure, and dependable software releases.• Embed security considerations into build, deployment, and operational workflows to promote stronger governance across the delivery lifecycle.• Partner with internal stakeholders and existing technical leadership to align platform strategy with business and operational priorities.• Provide high-level architectural guidance for infrastructure, automation, and deployment models in complex cloud environments.• Mentor engineers and cross-functional team members by sharing best practices in DevOps, cloud operations, and modern delivery methods.• Oversee configuration management and deployment standards to improve consistency, traceability, and system stability.• Support large-scale environments by identifying opportunities to optimize performance, resilience, and operational efficiency.
2026-08-12T16:08:38Z

Senior Litigation Associate

Toronto, ON
onsite
Permanent
160000.00 - 195000.00 CAD / Yearly
We are looking for a skilled and driven Senior Litigation Associate to join our dynamic team in Toronto, Ontario. In this role, you will manage complex civil litigation cases while contributing to the growth and development of less experienced team members. This position offers an excellent opportunity to showcase your legal expertise and develop your career in a supportive and fast-paced environment. Responsibilities:• Manage all stages of litigated matters, including examinations for discovery, mediations, and motions.• Collaborate with senior counsel on intricate and high-profile cases, ensuring thorough preparation and execution.• Engage in business development initiatives to expand the firm's client base and elevate your detail oriented reputation.• Mentor and provide guidance to less experienced team members, fostering a collaborative and growth-oriented environment.• Achieve both billable and non-billable targets while maintaining a high level of service.• Utilize legal software and tools such as case management platforms and document management systems to streamline workflows.• Communicate effectively with clients, colleagues, and external parties to ensure clarity and a focus on detail.• Handle complaint administration and insurance defense matters with precision and attention to detail.• Coordinate with legal assistants and paralegals to balance a demanding workload efficiently.
2026-07-21T16:58:47Z

Web Developer

Thornhill, ON
remote
Temporary
57.00 - 66.00 CAD / Hourly
We are looking for an experienced Web Developer to support a non-profit organization in Thornhill, Ontario through a Long-term Contract engagement. This role is ideal for someone who can strengthen and maintain a WordPress-based web presence while improving functionality, user access, and site performance. The successful candidate will bring a practical mix of front-end and back-end web development experience, along with the ability to interpret user activity data and help enhance the overall online experience. Responsibilities: • Maintain and enhance the organization’s WordPress website to ensure reliable performance, usability, and content accessibility. • Administer, configure, and update WordPress plugins while monitoring compatibility, security, and overall site stability. • Support user sign-in functionality connected to organizational systems and troubleshoot access-related issues as needed. • Contribute PHP development support for website features, customizations, and ongoing technical improvements. • Review website usage data to identify traffic patterns, user behaviour, and opportunities to improve engagement. • Work with internal stakeholders to translate business needs into effective web solutions that align with organizational goals. • Track, investigate, and resolve website issues using structured bug management and development practices. • Participate in an Agile delivery environment, documenting progress and coordinating work through tools such as Jira.
2026-08-14T16:44:02Z

Employment and Labour Associate

Toronto, ON
onsite
Permanent
155000.00 - 195000.00 CAD / Yearly
We are looking for a skilled Employment and Labour Associate to join our legal team in Toronto, Ontario. This position is ideal for lawyers with 1-4 years of experience in labour and employment law or civil litigation who are eager to contribute to complex and impactful cases. We offer a competitive compensation package, hybrid work options, and the chance to engage in dynamic legal matters that shape the industry. Responsibilities:• Provide expert legal advice and advocacy in matters related to employment and labour law.• Represent clients in civil litigation cases, ensuring thorough preparation and strategic execution.• Conduct in-depth research and analysis to support case strategies and legal arguments.• Draft and review legal documents, including contracts, pleadings, and client correspondence.• Collaborate with colleagues and clients to develop tailored legal solutions.• Stay informed on developments in employment and labour law to ensure accurate and current advice.• Manage case files using case management and document management software.• Participate in client development initiatives to strengthen relationships and expand the firm’s reach.• Handle complaint resolution and claim administration with professionalism and efficiency.
2026-07-21T16:58:47Z

Tax Staff - Public

North York, ON
onsite
Permanent
100000.00 - 120000.00 CAD / Yearly
Join a Growing, Specialized Tax Practice in the North GTAOur client, a well-established and growing mid-sized public accounting firm in the North GTA, is seeking a Tax Accountant to join their highly regarded specialized Tax Practice.This is an excellent opportunity for a tax professional who wants to deepen their expertise, work on complex and interesting files, and collaborate with a high-performing team in a firm that values professional development and client impact. What You’ll Do<ul><li>Prepare and review a wide range of income tax returns (personal, corporate, and trust), ensuring accuracy and full compliance with Canadian tax regulations</li><li>Handle information returns and regulatory filings, keeping clients compliant and up to date</li><li>Assist with tax elections, objections, and dispute resolution, gaining exposure to more complex tax matters</li><li>Analyze CRA notices and statements of account, identifying issues and recommending next steps</li><li>Build strong relationships with clients by providing clear, timely, and professional tax guidance</li><li>Support tax planning and advisory engagements, helping clients optimize their financial outcomes</li><li>Act as a key liaison with tax authorities, managing inquiries and resolving issues on behalf of clients</li><li>Stay ahead of changes in Canadian tax legislation, applying new rules and guidance proactively</li><li>Collaborate closely with colleagues across the practice to deliver high-quality, timely client service</li><li>Leverage modern tax software and tools to drive efficiency and accuracy in all deliverables</li></ul>
2026-08-10T12:58:41Z

Payroll Manager

Mississauga, ON
onsite
Permanent
100000.00 - 120000.00 CAD / Yearly
Our client is seeking an experienced Payroll Manager to oversee and lead a high-performing, payroll team. This role will be responsible for ensuring accurate and compliant end-to-end payroll processing across multiple provinces, while providing leadership, mentorship, and strategic direction to a small team. This is a hands-on leadership role ideal for someone who enjoys both people management and being actively involved in payroll operations.Key Responsibilities<ul><li>Lead, coach, mentor, and develop a small team of Payroll Administrators</li><li>Foster a collaborative, high-performance team environment</li><li>Provide training and ongoing support to ensure continuous development</li><li>Oversee and review end-to-end payroll processing for a high-volume, multi-province, unionized environment</li><li>Approve payroll to ensure accuracy, compliance, and timeliness</li><li>Act as a backup for full-cycle payroll when required</li><li>Lead all year-end payroll activities including reconciliations and reporting</li><li>Ensure compliance with federal and provincial payroll legislation, including union requirements</li><li>Support internal and external payroll audits</li><li>Prepare and analyze payroll reports for internal stakeholders</li><li>Leverage Excel to manage and interpret large data sets</li><li>Work closely with Finance and HR to ensure alignment on payroll processes and reporting</li><li>Communicate payroll policies, updates, and changes clearly across all levels of the organization</li><li>Participate in and lead payroll-related projects such as upgrades or M& A activities</li><li>Support the integration of newly acquired employees into the payroll system, ensuring accurate onboarding, data validation, and alignment with internal payroll processes and policies</li><li>Partner with HR and Finance during acquisitions to ensure a smooth transition, including payroll setup, compliance, and employee communication</li><li>Identify opportunities to improve payroll processes and efficiencies</li></ul>
2026-07-29T20:54:05Z

Accounting Clerk

Toronto, ON
onsite
Temporary
22.00 - 25.00 CAD / Hourly
We are looking for an Accounting Clerk to join our team in Toronto, Ontario on a Long-term Contract basis. This position is well suited to someone who enjoys combining administrative support with hands-on accounting tasks, while working closely with multiple internal teams. The role will focus on moving financial data between systems, checking accuracy, and supporting day-to-day accounting coordination in a collaborative, detail-focused environment. Responsibilities: • Transfer financial records and supporting data from one platform into the company’s system using provided templates and established procedures. • Assist with importing trial balances and related accounting information while working alongside subject matter experts to ensure completeness and accuracy. • Compare records across systems and investigate discrepancies to help confirm that data has been entered and mapped correctly. • Provide administrative and accounting support for project activities tied to divisional data integration and record maintenance. • Use Excel to review, organize, and validate financial information before and after uploads. • Communicate with finance staff, engineers, and other departments to gather information, clarify details, and keep tasks moving forward. • Maintain accurate documentation of imported data, validation steps, and follow-up items for tracking purposes. • Support billing, invoice-related tasks, and general accounting clerical duties as required.
2026-08-11T15:53:40Z