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Sr Software Developer Jobs in Vaughan, ON (NOW HIRING)

TMX Group

Senior Software Developer

Toronto, ON · Hybrid

We are looking for a Senior Software Developer who loves writing code but also enjoys thinking about how the entire system fits together. You will be a key player in our core development team ...

Geotab

Senior Software Developer - Mobile

Oakville, ON · On-site

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 ...

Clio

Senior Software Developer (Toronto)

Toronto, ON · Hybrid

CA$144K - CA$195K/yr

We are currently seeking a Senior Software Developer to join our rapidly growing Engineering team. This role is for someone who is passionate about building innovative solutions and being exposed to ...

Turing

Remote Senior Software Developer

Toronto, ON · Remote

CA$200 - CA$300/hr

As a Software Engineering evaluator, you will create cutting-edge datasets for training, benchmarking, and advancing large language models, collaborating closely with researchers. This includes ...

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Sr Software Developer information

What is a Sr software developer?

Sr Software Developers are experienced professionals responsible for designing, developing, and maintaining complex software applications. They typically lead technical teams, make architectural decisions, and mentor junior developers. Their role often involves collaborating with stakeholders to define requirements, ensuring code quality, and staying updated with emerging technologies. Senior developers play a crucial part in the software development lifecycle, helping to deliver robust and scalable solutions.

What are the key skills and qualifications needed to thrive as a Sr software developer?

To thrive as a Sr Software Developer, you need advanced proficiency in programming languages (such as Java, Python, or C#), software architecture, and a bachelor's or master’s degree in computer science or a related field. Familiarity with development tools like Git, integrated development environments (IDEs), cloud platforms, and relevant certifications (e.g., AWS Certified Developer) are typically expected. Strong problem-solving, leadership, collaboration, and communication skills help you mentor junior developers and work effectively within teams. These abilities are crucial to building robust software solutions, driving technical excellence, and ensuring successful project delivery.

What are some typical challenges Sr software developers face when leading project teams, and how can they effectively manage them?

Sr Software Developers often encounter challenges such as balancing coding responsibilities with mentoring junior team members, aligning technical solutions with business goals, and managing project timelines across cross-functional teams. Effective management involves clear communication, setting realistic expectations, and fostering a collaborative environment where team members can share ideas and resolve issues quickly. Leveraging agile methodologies and regular code reviews can also help maintain project momentum and ensure high-quality deliverables.

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

AspectSr Software DeveloperSoftware Engineer
Required CredentialsBachelor's degree in CS or related field; experience often preferredBachelor's or higher in CS or related field; certifications optional
Work EnvironmentDevelops software, collaborates with teams, and mentors junior staffDesigns, develops, tests, and maintains software applications
Employer & Industry UsageUsed across tech companies, startups, and enterprise firmsCommon in software development firms, tech companies, and IT departments

Both roles involve software development, but Sr Software Developers typically have more experience, leadership responsibilities, and mentorship duties. Software Engineers focus on designing and building software solutions, often with a broader scope. The roles overlap significantly, but the seniority and leadership aspect distinguish the Sr Software Developer from a general Software Engineer.

What do senior software developers do?

Senior software developers design, develop, and maintain software applications, often leading projects and mentoring junior team members. They analyze requirements, write code, perform testing, and ensure the quality and performance of software systems, typically using programming languages like Java, Python, or C++. They also collaborate with stakeholders and may oversee technical architecture and code reviews.

What cities near Vaughan, ON are hiring for Sr Software Developer jobs?

Cities near Vaughan, ON with the most Sr Software Developer job openings:

Sr Software Developer jobs near you
Infographic showing various Sr Software Developer job openings in Vaughan, ON as of August 2026, with employment types broken down into 94% Full Time, and 6% Contract. Highlights an 31% In-person, 38% Hybrid, and 31% Remote job distribution.

Senior Software Developer - IoT

Toronto, ON • On-site

Armstrong Fluid Technology
Water, Sewage, Waste, Steam, Air Heating and Cooling Systems • 1 - 5K employees
Learn more about Armstrong Fluid Technologyexternal

Full-time

Re-posted 28 days ago

Job description

Imagine working at the forefront of innovation in fluid-flow technology, with over 1400 colleagues across the globe, and contributing to a legacy of excellence that spans eight manufacturing facilities on four continents. Armstrong Fluid Technology is more than just a leader in our industry; we are a community of the brightest and most creative minds, driven by a shared mission to engineer the future and safeguard our planet.


As a member of our team, you'll dive into an environment that encourages learning and boundary-pushing every day. You'll be part of an agile and dynamic workplace where today's solutions are built for tomorrow's challenges.


The Senior Software Developer - Internet of Things (IoT), is responsible for designing and implementing secure, scalable, and reliable IoT solutions that integrate with cloud platforms like AWS or Azure. They will be responsible for designing and implementing key IoT systems.


This position is in Toronto, Canada with possible travel to our global operations in the USA, UK, Continental Europe, India, and China.


In addition to annual initiatives, the key accountabilities of this position are:
Key Accountabilities:

  • Design and implement end-to-end IoT solutions using AWS or Azure cloud platforms.
  • Design and implement fault-tolerant systems and services that run at large scales and high availability guarantees.
  • Actively participate in the design and implementation of IoT devices, edge devices and cloud infrastructure.
  • Develop and maintain technical documentation, including architecture diagrams and design documents.
  • Collaborate with cross-functional experts, including software development, data analytics, and cybersecurity teams, to deliver IoT solutions.
  • Keep up to date with the latest trends and technologies in IoT and cloud platforms.
  • Mentor other developers in software development best practices and processes.
  • Advise the leadership team on technical direction.


What We're Looking For

To thrive in this role, you should bring:


Role Requirements

Education

  • Bachelor's or Master's degree in Computer Science or a related field.
  • AWS and/or Azure certifications considered a plus.

Experience

  • Minimum of 5 years of experience in designing and implementing secure and scalable IoT solutions preferably in an industrial setting.
  • Minimum of 2 years of experience in AI software development.
  • Minimum of 10 years of experience in software development.

Skills:

  • Modern design patterns and microservice based architectures.
  • AI driven software development.
  • Containers, Kubernetes, message queues and all other related technologies.
  • Test Driven Development
  • Ability to match deep technology value with potential business value and partners.
  • Ability to break down complex problems in a simplified way, conduct root cause analysis and provide clear, well-thought-out recommendations.
  • Strong expertise in cloud platforms such as AWS and Azure, including IoT services and features.
  • Familiarity with IoT protocols such as MQTT, CoAP and HTTP.
  • Experience with edge computing technologies and protocols such as OPC UA, Modbus, BACnet, and CAN bus.
  • Knowledgeable about Containerization technologies like Docker and Kubernetes.
  • Expertise in microservices serverless architectures.


Why Armstrong Fluid Technology?

By joining us, you'll become part of a global community dedicated to pushing the boundaries of fluid-flow technology. You'll have endless opportunities to learn, grow, and make a significant impact on the world. Together, we'll build tomorrow's solutions today.

Apply