13 results for Software Developer in Mississauga, ON

Web Developer

Thornhill, ON
remote
Temporary
57 - 66 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.
2026-08-14T00:00:00Z

Software Engineer (Java)

Toronto, ON
onsite
Permanent
100000 - 130000 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>
2026-08-14T00:00:00Z

Mobile Developer

North York, ON
onsite
Temporary
50 - 60 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.
2026-08-15T00:00:00Z

Application Developer Team Lead

Mississauga, ON
onsite
Permanent
125000 - 150000 CAD / Yearly
Our client is seeking a hands-on Application Development Team Lead to lead a small team of developers while remaining actively involved in the design, development, and delivery of enterprise applications. This is a player-coach opportunity ideal for a Senior Developer or Technical Lead looking to grow into a management role while staying close to the technology. Responsibilities<ul><li>Lead, mentor, and support a team of software developers.</li><li>Design, develop, and maintain enterprise applications using modern Microsoft technologies.</li><li>Build and support APIs, integrations, and cloud-based solutions.</li><li>Collaborate with business stakeholders to gather requirements and deliver technical solutions.</li><li>Participate in architecture, development, testing, deployment, and production support activities.</li><li>Drive Agile delivery, DevOps best practices, and continuous improvement initiatives.</li><li>Contribute to automation, reporting, and data-driven projects.</li></ul>
2026-08-20T00:00:00Z

Senior Software Engineer

North York, ON
onsite
Permanent
130000 - 150000 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>
2026-07-24T00:00:00Z

Salesforce Developer

Toronto, ON
onsite
Permanent
73000 - 110000 CAD / Yearly
We are looking for a Salesforce Developer to support a non-profit organization in Toronto, Ontario by building and enhancing reliable CRM solutions that strengthen day-to-day operations and stakeholder engagement. In this role, you will collaborate with technical and business teams to design, develop, and maintain scalable Salesforce functionality while ensuring quality, usability, and performance. This opportunity is well suited to someone who enjoys solving complex development challenges, improving existing systems, and contributing to mission-driven work through thoughtful technology delivery. Responsibilities: • Design, build, and maintain Salesforce features, custom components, and backend integrations that support organizational programs and internal operations. • Translate business needs into technical solutions by working closely with stakeholders, documenting requirements, and recommending practical system enhancements. • Develop and support custom code using relevant programming languages and web technologies to extend platform capabilities and improve user experience. • Investigate defects, troubleshoot application issues, and implement sustainable fixes while tracking work through established ticketing and bug management processes. • Manage source code and deployment activities using version control and collaborative development practices to promote code quality and release stability. • Create and execute testing activities to validate new functionality, confirm system performance, and reduce the risk of production issues. • Contribute to ongoing platform improvements, including updates to existing workflows, integrations, and data handling processes when business changes require system adjustments. • Prepare technical documentation and share knowledge with team members to support maintainability, continuity, and effective adoption of solutions.
2026-08-19T00:00:00Z

SharePoint Developer

Kitchener, ON
onsite
Temporary
65 - 75 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.
2026-08-10T00:00:00Z

CAN - Software Developer: II (Intermediate)

Mississauga, ON
onsite
Temporary
26 - 34 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.
2026-08-12T00:00:00Z

Senior Full Stack Developer

Mississauga, ON
onsite
Permanent
100000 - 115000 CAD / Yearly
We are seeking a talented Senior Full Stack Developer to join our client's team in Mississauga, Ontario. 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. Technical Skills<ul><li>Programming: J2EE, JPA, Java Web Services (RESTful), Spring Framework, Angular, Maven</li><li>Tools: Jira, Confluence, GitHub</li><li>Databases: Relational database systems (ideally Oracle), PL/SQL, SQL Query development</li><li>Operating Systems: Linux, HP‑UX or other UNIX variants, Windows</li><li>Architecture: Experience in multi‑platform distributed environments, web‑based architectures, and microservices</li><li>Design: Familiarity with standard design patterns and UML</li><li>DevOps: Experience with CI/CD automation processes</li></ul>
2026-08-18T00:00:00Z

Lead Android Developer

Toronto, ON
remote
Temporary
50 - 70 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.
2026-08-10T00:00:00Z

CAN - Software Engineer: II (Intermediate)

Mississauga, ON
onsite
Temporary
35 - 45 CAD / Hourly
We are looking for an intermediate-level Database Developer to join a collaborative analytics team in Mississauga, Ontario on a Contract basis. In this role, you will help shape reliable data solutions that support finance operations and business performance across multiple service environments. This opportunity is ideal for someone who enjoys working closely with stakeholders, improving data structures, and ensuring information is accurate, accessible, and ready for reporting. Responsibilities: • Design and refine data models that support analytics, financial workflows, and operational reporting needs. • Build, maintain, and optimize SQL-based data solutions to ensure dependable and efficient access to business information. • Partner with finance stakeholders to support the onboarding of payment vendors and organize data for downstream business use. • Work with cross-functional team members, including analytics, quality assurance, project management, and ingestion teams, to deliver well-structured data outputs. • Manage datasets within cloud data platforms such as Snowflake and help maintain clear, consistent data pipelines. • Use version control practices through GitHub to track changes, support collaboration, and maintain code quality. • Participate in regular team ceremonies, share progress updates, and contribute to collaborative problem-solving discussions. • Review stakeholder requests carefully, ask thoughtful questions, and provide informed feedback to help define practical data solutions.
2026-08-20T00:00:00Z

Data Engineer

Guelph, ON
onsite
Permanent
90000 - 110000 CAD / Yearly
Robert Half is looking to hire a Data Engineer for a current opening with an organization that is rapidly expanding. Please take a look at the summarized information below and apply if you are a good fit! Role: Data EngineerLocation: KW RegionIndustry: ConfidentialCompensation: $90k to $110k + Bonus + Vacation / PTO + Strong Benefits + Great work culture!Requirements:• Data engineering and pipelines: Hands-on experience with Microsoft Fabric, Lakehouse, Data Factory, Dataflows Gen2, notebook development, enterprise data integration, pipeline orchestration, and cloud-based analytics architectures. • SQL and data modelling: Proficiency in data transformation, dimensional models, KPI implementation, curated datasets, performance tuning, and optimization. • Python-based development: Utilization of Python for data processing, workflow automation, validation, quality controls, and operational data engineering. • Reporting and governance enablement: Support for Power BI semantic models, curated datasets, data governance, lineage, operational documentation, and reliable and auditable data operations. • Strategic fit: Alignment with enterprise reporting modernization, Microsoft Fabric expansion, and stronger data governance and analytics capabilities.
2026-08-20T00:00:00Z

Senior Cloud Engineer

Toronto, ON
onsite
Permanent
120000 - 140000 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>
2026-08-10T00:00:00Z