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

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Mechanical Engineer Co-Op

Hamilton, ON · On-site

CA$23 - CA$26/hr

Work directly with and support Senior personal along with overseeing and directing junior members ... works independently SOFTWARE PROFICIENCIES · AutoCAD · Revit · EQuest or IES EDUCATION ...

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Senior Software Developer information

See Cornwall, ON salary details

$50.8K

$111.1K

$157.4K

How much do senior software developer jobs pay per year?

As of Jun 13, 2026, the average yearly pay for senior software developer in Cornwall, ON is $111,112.00, according to ZipRecruiter salary data. Most workers in this role earn between $91,992.00 and $125,883.00 per year, depending on experience, location, and employer.

What is the average salary of a senior software developer?

The average salary of a senior software developer typically ranges from $100,000 to $150,000 annually, depending on experience, location, and industry. Factors such as proficiency in programming languages, experience with cloud platforms, and certifications can influence compensation levels.

What are the key skills and qualifications needed to thrive as a Senior Software Developer, and why are they important?

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 L1, L2, L3, and L4 developer?

In the context of a Senior Software Developer role, L1, L2, L3, and L4 typically refer to different levels of experience and responsibility within an organization, with L1 being entry-level and L4 being senior or lead positions. These levels often correspond to increasing technical skills, project management capabilities, and leadership responsibilities, and are used to structure career progression and compensation. The specific definitions can vary by company, but generally, higher levels require more advanced coding, problem-solving, and mentorship skills.

What Is a Senior Software Developer?

Senior software developers have several years of experience in the software industry. They have proven successful in exceeding client expectations when developing programs and have provided excellent support in the managing of those applications. They have worked their way up from junior software developer positions and have mastered a variety of coding languages and programs. Senior software developers train and oversee a team of junior software developers.

What kinds of projects and responsibilities can a Senior Software Developer expect to handle on a daily basis?

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.

Can I make 200k a year as a software engineer?

Senior software developers in high-cost-of-living areas or with specialized skills such as cloud computing, machine learning, or leadership roles can earn $200,000 or more annually. Compensation varies based on experience, location, company size, and industry, with some senior roles reaching or exceeding this level through bonuses and stock options.

What are Senior Software Developers?

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 engineers make $500,000?

Senior software engineers, especially those with specialized skills in areas like machine learning, cloud computing, or cybersecurity, can earn $500,000 or more annually, often through a combination of base salary, bonuses, and stock options. Such compensation typically requires extensive experience, advanced technical expertise, and work at large tech companies or startups with high growth potential.

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 popular job titles related to Senior Software Developer jobs in Cornwall, ON? For Senior Software Developer jobs in Cornwall, ON, the most frequently searched job titles are:
What cities near Cornwall, ON are hiring for Senior Software Developer jobs? Cities near Cornwall, ON with the most Senior Software Developer job openings:
Infographic showing various Senior Software Developer job openings in Cornwall, ON as of June 2026, with employment types broken down into 91% Full Time, 7% Part Time, and 2% Contract. Highlights an 87% Physical, 5% Hybrid, and 8% Remote job distribution, with an average salary of $111,112 per year, or $53.4 per hour.
Sr. Specialist, Project Engineering

Sr. Specialist, Project Engineering

L3Harris Technologies

Hamilton, ON • On-site

CA$102K - CA$152K/yr

Full-time

This job post has expired 2 days ago. Applications are no longer accepted.


Job description

L3Harris is dedicated to recruiting and developing high-performing talent who are passionate about what they do. Our employees are unified in a shared dedication to our customers’ mission and quest for professional growth. L3Harris provides an inclusive, engaging environment designed to empower employees and promote work-life success. Fundamental to our culture is an unwavering focus on values, dedication to our communities, and commitment to excellence in everything we do.

L3Harris is the Trusted Disruptor in defense tech. With customers’ mission-critical needs always in mind, our employees deliver end-to-end technology solutions connecting the space, air, land, sea and cyber domains in the interest of national security.

Sr. Specialist, Project Engineering 

Reference #: 35761

Waterdown, Ontario

About L3HARRIS WESCAM

As a subsidiary of L3Harris Technologies and within the Communications & Spectrum Dominance (CSD) Segment, the WESCAM division develops the most advanced optical sensor and targeting systems for global defense and military sectors, national security, search & rescue and airborne law enforcement agencies. From long-range covert surveillance missions to search and rescue operations, our MX-series systems, and the mission systems solutions they produce stabilized high-magnification electro-optical and infrared images from airborne, marine and ground based platforms, enabling our customers to see first and act first.

Primary Responsibilities

  • Provide project leadership and technical guidance for internally and externally funded product developments
  • Coordinate, prepare-for and lead presentation of design stage gate packages
  • Align cross-functional development team to execute the New Product Introduction (NPI) company standard process
  • Responsible for presenting to various levels of cross-functional leadership in design reviews and business meetings
  • Develop and maintain project risk registers including mitigation plans, drive closure of risk actions
  • Responsible for providing project forecasts and maintaining adherence to project budgets and schedules
  • Use of JIRA and other project tools for Earn Value Management reporting
  • Maintain project schedules to align with integrated master schedule milestones and customer contract deliverable 
  • Participate in and support the bids and proposal/sales process by providing engineering inputs including feasibility, NRE, risks and schedule estimates for new products or features
  • Lead project scrums, closely involved in material shortage and build meetings
  • Understand and communicate cause and effect of changes affecting schedule, quality and cost
  • Coordinate engineering changes and lead Enterprise Change Assessment (ECA) technical pillar through the change process
  • Lead department strategic goal alignment projects as needed
  • Understand and comply with the company Quality Management System

Preferred Skills

  • Excellent working knowledge of Microsoft Office including MS Project
  • Strong technical communication skills, both written and verbal
  • Excellent project organization and planning skills
  • Strong interpersonal skills, capable of maintaining and growing relationships with stakeholders
  • Understanding of electro/mechanical/optical/video systems
  • Knowledge/experience using Atlassian Confluence/JIRA
  • Working knowledge of root cause analysis or reliability techniques (5 Why, Cause Map, 8D, FMEA)
  • A sense of urgency; dynamic, resourceful, innovative and takes initiative
  • Working knowledge of mechanical design, bill of material structures and mechanical design terminology
  • Working knowledge of electrical circuit design, circuit board assemblies and electrical design terminology
  • Working knowledge of feedback control systems, video standards, grounding/bonding practices and motors/potentiometers/encoders and other electro-mechanical devices
  • Working knowledge of optical assemblies, cameras and laser devices is an asset
  • Knowledge of AS9100 Quality Standard
  • Engineering degree and experience in aerospace industry preferred
  • Experience designing mechanical, electrical, electro-optical, software/firmware systems/subsystems
  • Experience presenting technical project content to senior leadership stakeholders
  • Well-rounded project management background with experience in a highly technical environment
  • PMP Certification is an asset
  • P.Eng license is an asset

Experience & Education Requirements

  • Bachelor’s Degree and minimum 6 years of prior relevant experience. Graduate Degree and a minimum of 4 years of prior related experience and in lieu of a degree, minimum of 10 years of prior related experience.

*This posting is for a current vacancy.  In the province of Ontario, Canada, the pay range for this position will be $102,000 to $152,000 

#LI-RK2

At L3Harris, we foster an inclusive and equitable workplace. L3Harris is committed to treating all employees and applicants for employment with respect and dignity and maintaining a workplace that is free from unlawful discrimination. For applicants with disabilities, we will provide you with accommodation so that you have what you need in order to be at your best.

L3Harris performs background checks prior to employment as all applicants must be eligible for registration with the Controlled Goods Program and obtain and maintain a positive security assessment. Some positions may require a government of Canada “Reliability” status and/or Level 2 (Secret) security clearance. In addition, L3Harris performs pre-employment substance abuse testing where required.