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Senior Software Developer Jobs in Caledon, ON (NOW HIRING)

RQ10970 - Sr. Software Developer

Toronto, ON · On-site

CA$88.54 - CA$106.25/hr

RQ10970 - Sr. Software Developer 10+ month contract (210 business days) - possible extensnion ONISTE 5 days - Toronto Must Have: HM is looking for a Strong Power BI Develope r- 10+ years overall

As a Senior Mobile Software Developer, you are primarily responsible for owning the end-to-end mobile experience - architecting, building, and maintaining efficient, reliable, and scalable mobile ...

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We are seeking an experienced Senior Software Developer (Full Stack) with 7+ years of commercial software engineering experience. In this key on-site role in Mississauga, you will lead the ...

Work is performed under the supervision, guidance, and direction of more senior software developers and is commensurate with level of ability Compensation & Benefits * Pay Rate: $36.54 - $50.24

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Senior Software Developer information

What is a senior software developer?

Senior Software Developers are experienced professionals who design, develop, and maintain complex software applications. They often lead development teams, mentor junior developers, and make critical architectural decisions. Their responsibilities include writing high-quality code, troubleshooting technical issues, and ensuring that software projects meet performance and security standards. With deep expertise in programming languages and software engineering principles, they play a key role in delivering successful technology solutions for organizations.

What does a senior software developer do?

As a Senior Software Developer, you’ll typically be responsible for leading complex development projects, designing technical solutions, and mentoring junior team members. Daily tasks often include writing and reviewing code, participating in architecture discussions, collaborating with cross-functional teams (such as QA, product management, and DevOps), and troubleshooting high-level technical issues. You may also be involved in setting coding standards, conducting code reviews, and helping to plan sprints or project roadmaps.

What skills and qualifications are needed to thrive as a senior software developer?

To thrive as a Senior Software Developer, you need deep expertise in programming languages, software architecture, and problem-solving, typically backed by a bachelor’s degree in computer science or a related field. Proficiency with development frameworks, version control systems like Git, and cloud platforms such as AWS or Azure is standard, and certifications in these areas can be beneficial. Leadership, strong communication, and mentoring abilities set standout candidates apart in this role. These skills ensure that complex projects are delivered efficiently, code quality is maintained, and junior team members are effectively guided for overall team success.

What is the difference between Senior Software Developer vs Software Engineer?

AspectSenior Software DeveloperSoftware Engineer
CredentialsBachelor's degree in CS or related field; experience often 5+ yearsBachelor's or higher in CS or related field; similar experience levels
Work EnvironmentCollaborates on complex projects, mentors juniors, leads technical effortsDesigns, develops, tests software; may work on specific modules or systems
Industry UsageCommonly used in tech companies, startups, and enterprise firmsWidely used across industries, often interchangeable with developer roles

The main difference is that Senior Software Developers typically have more experience, leadership responsibilities, and focus on complex project oversight, while Software Engineers may focus more on designing and implementing software solutions. Both roles require similar credentials and are integral in software development teams, but Senior Software Developers often take on mentorship and strategic tasks.

What are the most commonly searched types of Software Developer jobs in Caledon, ON?

The most popular types of Software Developer jobs in Caledon, ON are:

What cities near Caledon, ON are hiring for Senior Software Developer jobs?

Cities near Caledon, ON with the most Senior Software Developer job openings:

Infographic showing various Senior Software Developer job openings in Caledon, ON as of August 2026, with employment types broken down into 1% As Needed, 87% Full Time, 8% Part Time, and 4% Contract. Highlights an 87% Physical, 4% Hybrid, and 9% Remote job distribution.

RQ10970 - Sr. Software Developer

Source Code

Toronto, ON • On-site

CA$88.54 - CA$106.25/hr

Contractor

This job post has expired today. Applications are no longer accepted.


Job description

RQ10970 - Sr. Software Developer

10+ month contract (210 business days) - possible extensnion

ONISTE 5 days - Toronto

Must Have:

HM is looking for a Strong Power BI Develope r- 10+ years overall 

  • Strong expertise in Power BI Desktop and Power BI Service
  • Advanced knowledge of DAX (Data Analysis Expressions)
  • Proficiency in Power Query (M Language) for data transformation
  • Strong SQL skills for querying and managing data
  • Experience in data modeling (Star Schema, Fact & Dimension tables)
  • Ability to create interactive dashboards and reports
  • Knowledge of ETL processes and data integration
  • Experience connecting to multiple data sources (databases, APIs, cloud platforms)
  • Understanding of performance optimization for reports and datasets
  • Implementation of Row-Level Security (RLS) and data governance
  • Familiarity with Microsoft Fabric, Azure, and cloud analytics platforms
  • Knowledge of data warehousing and BI best practices
  • Relevant certifications such as PL-300 Power BI Data Analyst

Nice to have:

  • Prior OPS or Public sector Exp.

Description:

An advanced Programmer/Developer is required to develop BI solutions using Microsoft Power BI for varying business needs, following all applicable GO-ITS standards and industry best practices while adhering to the existing technological solution framework. The successful candidate will work with various technology teams to translate business needs and work through the analysis and lead the development phases.

Develop BI solutions using Microsoft Power BI for varying business needs, following all applicable GO-ITS standards and industry best practices while adhering to the existing technological solution framework. The successful candidate will work with various technology teams to translate business needs and work through the analysis and lead the development phases.

Deliverable:

EYIA IT Solution development EYIA, Allocation:100%

The above resources will also support CSC release and infrastructure solutions support project activities, urgent priorities, changing needs, or time-sensitive infrastructure upgrades, or other project activities supporting any CSC platforms overseen by the Cluster where annual work is required.

General Skills:

· Ensure seamless integration of new and existing systems, applications, and platforms.

· Evaluate and recommend technology stacks, platforms, and tools to support business goals.

· Design systems with a focus on security, compliance, and data privacy standards.

· Work closely with stakeholders such as business units, development teams, IT infrastructure teams to ensure alignment with project goals.

· Ensure solutions are scalable, reliable, and can be optimized for future growth.

· Provide technical support and participate in the development, package creation, code merge, testing and release activities.

· Primary interface between technical teams (Dev, QA) and business stakeholders, focusing on requirements clarification and UAT.

· Develop and manage solutions using Power BI, Oracle, MS-SQL, Visual Studio, SSIS, Attunity, ODAC, .NET framework, GIT and SQL-based reporting tools.

Desirable Skills:

  • Knowledge and understanding of Information Management principles, concepts, policies and practices
  • Ability to translate business and data requirements into specifications sufficient for designing appropriate technology solutions
  • Experience with a wide range of methods, tools and techniques for business analysis such as: business functional modelling, business event modelling, business process mapping
  • Experience in structured, object oriented and agile methodologies for user requirements
  • Knowledge and understanding of Accessibility for Ontarians with Disability Act (AODA) and related regulations and standards
  • Provides a comprehensive range of I&IT business analysis services for clients with diverse business and technological needs.
  • Experience in the use of Computer Aided Software Engineering (CASE) tools to document conceptual requirements and scope
  • Awareness of emerging I&IT trends and technologies
  • Prepares and advises on business analysis policies, processes, best practices and standards to promote a comprehensive and consistent business analysis practice within the organization.

AI Disclaimer: Source Code may use artificial intelligence (AI) tools to assist in certain aspects of its recruiting and business operations.

Note: The higher end of the range is intended for absolutely exceptional candidates who meet all must-have requirements and most or all nice-to-have qualifications. The client will evaluate candidates based on both rate expectations and overall skill set when shortlisting.

INCORPORATED RATE RANGE (7.25 billable hours per day)

  • $88.54/hr - $106.25/hr Inc.

T4 RATE RANGE (7.25 billable hours per day)

  • $70.83/hr - $85.00/hr T4