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Senior Software Engineer Jobs in London, ON (NOW HIRING)

Voices

Senior Software Engineer

London, ON · Hybrid

  • Medical

  • Dental

  • PTO

Senior Software Engineer Location: Ontario (Hybrid - See "Hybrid Work Details" section below for more information) Position Type: Full-Time Vacancy Status: This posting is for an existing vacancy.

Voices

Senior Software Engineer

London, ON · Hybrid

Senior Software Engineer Location: Ontario (Hybrid - See "Hybrid Work Details" section below for more information) Position Type: Full-Time Vacancy Status: This posting is for an existing vacancy.

Voices

Senior Software Engineer

London, ON · Hybrid

  • Medical

  • Dental

  • PTO

Senior Software Engineer Location: Ontario (Hybrid - See "Hybrid Work Details" section below for more information) Position Type: Full-Time Vacancy Status: This posting is for an existing vacancy.

Proton

Senior Software Engineer (Inbox Desktop)

London, ON · On-site

  • Medical

  • Retirement

  • PTO

We are looking for a Senior Software Engineer to take the technical ownership of the Proton Mail Desktop App on Windows and Linux platforms. Currently, we use many languages and frameworks in the ...

CARFAX

Senior Software Engineer - Dev Ops

London, ON

  • Medical

  • Retirement

Join Team CARFAX as a Senior Software Engineer - Dev Ops We are looking for a seasoned Senior Software Engineer - Dev Ops to join our platform team and take an active role in designing, scaling, and ...

CARFAX

Senior Software Engineer - Dev Ops

London, ON · On-site

  • Medical

  • Retirement

Join Team CARFAX as a Senior Software Engineer - Dev Ops We are looking for a seasoned Senior Software Engineer - Dev Ops to join our platform team and take an active role in designing, scaling, and ...

Td

Senior Software Engineer (Mainframe)

London, ON

CA$81K - CA$115K/yr

Adhere to enterprise engineering frameworks, software development methodologies, release processes, and control standards applicable to mainframe development and delivery. * Actively identify and ...

Td

Software Engineer III

London, ON

CA$125K - CA$154K/yr

  • Medical

  • Retirement

  • PTO

We are seeking a skilled Senior Software Engineer with expertise in Java with expertise in Node JS , Java, Spring Boot, REST API, Kafka , SQL Server Database, Cloud, Azure & AI tools . This ideal ...

Td

Software Engineer II

London, ON

CA$81K - CA$115K/yr

You translate architecture and product requirements into quality software, working independently on complex components while partnering with senior engineers, Architecture, Security, Infrastructure ...

New

Td

Software Engineer I

London, ON · On-site

CA$69K - CA$98K/yr

Develop or contribute to software solutions for engineering projects within the assigned application or platform area. * Create, maintain, and support high-quality, maintainable code aligned with ...

Td

Software Engineer II (AI Integration)

London, ON · On-site +1

CA$96K - CA$115K/yr

This role combines software engineering, data science, and machine learning expertise to develop scalable AI systems in production environments. Key Responsibilities * 3-5 years total experince

DV Trading

Senior AI Engineer

London, ON · On-site

The Senior AI Engineer defines how the firm builds production agent systems and ships reference ... software engineering; strong Python - Production LLM-powered agent systems shipped (not demos ...

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All JobsSoftware Engineer JobsSenior Software Engineer JobsSenior Software Engineer Jobs in London, ON

Senior Software Engineer information

See London, ON salary details

$57.4K

$106.9K

$152.3K

How much do senior software engineer jobs pay per year?

As of Aug 14, 2026, the average yearly pay for senior software engineer in London, ON is $106,891.00, according to ZipRecruiter salary data. Most workers in this role earn between $88,906.00 and $120,843.00 per year, depending on experience, location, and employer.

What is a senior software engineer?

A senior software engineer designs, codes, tests, and maintains computer software. While these are your primary responsibilities as a senior software engineer, you may also have supervisory duties. These include overseeing a team of junior software engineers or developers. The senior software engineer title is sometimes used interchangeably with senior developer, and positions for both may share similar job duties and responsibilities. In general, software engineers are distinguished from developers in that software engineers apply engineering principles to software development.

What are some common challenges senior software engineers face when mentoring junior team members?

Senior Software Engineers often mentor junior colleagues, which can be incredibly rewarding but also presents challenges. Balancing mentorship with project deadlines can be demanding, as it requires strong time management and communication skills. Additionally, adapting explanations to different learning styles and levels of experience can be tricky. However, effective mentorship helps build a stronger team and can lead to enhanced leadership opportunities for the senior engineer.

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

AspectSenior Software EngineerSoftware Developer
CredentialsBachelor's or higher in CS or related field; experience often 5+ yearsBachelor's in CS or related field; entry to mid-level experience
Work EnvironmentDesigning complex systems, leading projects, mentoringWriting code, developing features, debugging
Industry UsageUsed across tech companies, startups, enterpriseCommon in software firms, startups, freelance work
Search & ComparisonOften compared for experience level, responsibilitiesCompared for entry-level to mid-level roles

The main difference between a Senior Software Engineer and a Software Developer lies in experience, responsibilities, and scope. Senior Software Engineers typically have more experience, lead projects, and mentor others, while Software Developers focus on coding and feature development. Both roles are essential in tech companies, but the Senior Software Engineer position involves higher-level planning and leadership.

What are the key skills and qualifications needed to thrive as a senior software engineer, and why are they important?

To thrive as a Senior Software Engineer, you need advanced programming skills, deep understanding of software architecture, and several years of experience in software development, often supported by a relevant degree. Familiarity with tools like Git, CI/CD pipelines, cloud platforms, and expertise in technologies such as Java, Python, or JavaScript are typically required. Leadership, problem-solving, and effective communication are crucial soft skills for mentoring teams and collaborating across departments. These skills ensure the delivery of robust, scalable solutions and drive successful project outcomes in complex technical environments.
More about Senior Software Engineer jobs

What are the most commonly searched types of Software Engineer jobs in London, ON?

The most popular types of Software Engineer jobs in London, ON are:

What are popular job titles related to Senior Software Engineer jobs in London, ON?

For Senior Software Engineer jobs in London, ON, the most frequently searched job titles are:

What cities near London, ON are hiring for Senior Software Engineer jobs?

Cities near London, ON with the most Senior Software Engineer job openings:

Senior Software Engineer jobs near you
Infographic showing various Senior Software Engineer job openings in London, ON as of August 2026, with employment types broken down into 100% Full Time. Highlights an 74% In-person, 21% Hybrid, and 5% Remote job distribution, with an average salary of $106,891 per year, or $51.4 per hour.

Senior Software Engineer

Voices

London, ON • Hybrid

Full-time

Medical, Dental, PTO

Re-posted 11 days ago

Job description

Senior Software Engineer
 
Location: Ontario (Hybrid - See “Hybrid Work Details” section below for more information)
Position Type: Full-Time 
Vacancy Status: This posting is for an existing vacancy.
 
About Us
Voices is the trusted voice partner for brands, tech and voice talent. Voices helps scale real voice solutions, across traditional voiceover, Voice AI, and ethically sourced voice data. For more than two decades, the biggest and most beloved brands have trusted Voices to find their voices and bring their projects to life.
 
Why join us? We’re on a mission to shape the future of voice, and we’re building a team that’s curious, collaborative, and passionate about making great ideas heard.
 
About the Role  
As a Senior Software Engineer, you’ll join a high-performing development organization working in cross-functional teams to design, build, and evolve modern full-stack systems that power critical workflows for our customers and internal teams. In this role, you’ll take ownership of complex technical initiatives and contribute to system architecture and design decisions within a modern cloud-based environment, helping ensure our platform remains scalable, reliable, and maintainable as it grows. You’ll apply strong full-stack engineering expertise to solve complex technical problems and deliver solutions that balance immediate business needs with long-term technical sustainability.
 
We value thoughtful engineering, steady delivery, and continuous improvement. You’ll collaborate closely with Product, Infrastructure, QA, and Support to ensure solutions are technically sound and aligned with business goals, while proactively identifying opportunities to improve architecture, tooling, and development practices. You’ll report to the Senior Manager, Application Development and be part of a team that values high standards, ownership, and pragmatic problem solving.
 
Responsibilities  
In this role, you’ll take ownership of the following key areas:
 
Application & System Development
  • Design, build, and evolve customer-facing and internal applications using modern full-stack technologies, ensuring scalability, maintainability, and long-term sustainability.
  • Lead the design and extension of applications built on modern frameworks, contributing to architectural decisions and technical direction.
  • Design and maintain internal APIs and third-party integrations (e.g., Salesforce and cloud services), ensuring reliability, performance, and secure data exchange.
  • Drive the delivery of complex product initiatives, owning solutions from technical discovery and design through implementation, deployment, and post-release evaluation.
  • Identify and address technical debt, performance challenges, and structural improvements within the systems you support.
 
Quality, Testing & Security
  • Establish and uphold high standards for automated testing (unit and integration), ensuring long-term code quality and system reliability.
  • Apply and advocate for accessibility (AODA, WCAG) and security (OWASP) best practices across projects.
  • Analyze and optimize system performance, proactively identifying bottlenecks and recommending architectural or design improvements.
  • Provide technical leadership in diagnosing complex defects and production issues, partnering with Product and Support to drive durable resolutions.
 
Engineering Practices & Delivery
  • Contribute to release planning and technical scoping, providing clear assessments of trade-offs, complexity, risk, and long-term impact.
  • Improve development workflows, tooling, and CI/CD processes to increase team efficiency and delivery confidence.
  • Participate in and elevate code review practices, providing thoughtful feedback that strengthens overall code quality and engineering standards.
  • Use AI-assisted development tools responsibly to improve productivity, maintainability, and documentation quality.
 
Documentation & Technical Collaboration
  • Document architectural decisions, APIs, and significant implementation details to support knowledge sharing and long-term maintainability.
  • Contribute to and help evolve shared libraries, internal frameworks, and design systems to ensure consistency and reusability across teams.
  • Collaborate across teams to align on technical patterns, integration strategies, and system design approaches.
 
What You Bring
We’re looking for someone who brings some or all of the following:
  • You want to ship regularly and take pride in delivering meaningful, end-to-end solutions. You approach development with curiosity, ownership, and a commitment to continuous improvement.
  • You write high-quality, maintainable code and understand the long-term impact of design decisions. Your work is well-structured, testable, documented, and backed by comprehensive automated tests that support long-term maintainability and reliability.
  • You’re comfortable working across a varied technical stack - including technologies such as PHP, JavaScript, Node.js, Python, and modern CSS - and modern architectural patterns (e.g., MVC, reactive frameworks, APIs, distributed services), and can reason about system design trade-offs.
  • You have experience designing and evolving application architecture, balancing immediate business needs with scalability, reliability, and maintainability.
  • You have experience writing and maintaining build, migration, and automation scripts to support development and deployments.
  • You have experience designing and operating applications within cloud-based environments, with a strong understanding of distributed systems patterns such as queues, background jobs, caching, and object storage.
  • You are confident diagnosing complex issues, analyzing root causes, and implementing durable solutions in production environments.
  • You can clearly articulate technical decisions, trade-offs, and risks, and collaborate effectively with cross-functional partners to drive alignment and informed decision-making.
  • You are comfortable breaking down complex initiatives into actionable steps, estimating effort, and driving work to completion with accountability.
  • You are skilled in developing full-stack solutions from scratch, creating systems that are reusable, performant, secure, and accessible.
  • You actively contribute to technical discussions, design reviews, and code reviews, helping strengthen engineering standards and shared understanding across the team.
  • You are self-motivated and capable of operating with a high degree of autonomy, taking initiative while collaborating effectively with your team.
  • You enjoy learning, solving challenging problems, and continuously strengthening your technical craft.
  • You have 5+ years experience in software engineering (with expertise in web development), and proficiency with the software development lifecycle (SDLC).
  • You earned a BS or MS in Computer Science, Software Engineering, or have the equivalent work experience.
 
Perks & Benefits
In addition to competitive compensation, we offer a range of perks that support your growth, wellbeing, and day-to-day flexibility. Here’s what you can look forward to: 
  • Generous Vacation: We offer 15 days of annual vacation (pro-rated for your first year), plus additional paid leave during our scheduled summer and winter holiday closures.
  • Personal Time: Take care of what matters with 5 paid personal days and 3 unpaid personal days annually
  • Comprehensive Health Coverage: Access to health and dental benefits after just 3 months of employment
  • Hybrid Flexibility: Enjoy the best of both worlds with our hybrid work environment
  • Performance Bonus Program: Recognizing your impact with bonus opportunities tied to company and individual performance
  • Learning & Development Support: We invest in your growth with a dedicated L&D budget and coverage for platforms like LinkedIn Learning, Udemy, Codecademy, and more
  • Community Impact: We empower you to give back with 8 hours of paid volunteer time annually, allowing you to support the causes and nonprofits that matter most to you.
  • A Great Team: Work with genuinely kind, smart, and talented people who love what they do (and know how to have fun doing it).
 
Hybrid Work Details: We are a hybrid workplace, allowing employees to work remotely from home. However, this position requires one in-office day per month on pre-set dates, during which all company employees are expected to attend. Our office is located at 100 Dundas Street, London, Ontario. Additionally, you may be asked to come into the office as needed with reasonable notice.
 
Compensation  
Salary Range:  $100,000 - $125,000
A typical hire for this role generally falls between the minimum and midpoint of the range based on skills, experience, qualifications and internal equity. Employees grow through the range based on performance and demonstrated competencies.
 
Additional Notes
  • All interviewed candidates will receive notification within 45 days of final interviews.
  • Our Use of AI in Recruitment: We use an AI tool in our applicant tracking system (Jobvite) to check how well a candidate’s experience aligns with the job requirements. This feature, called Talent Match, may label an application as a match or leave it unlabelled. It does not make decisions or reject candidates. Every application is reviewed by our People Operations team.
 
Our Commitment to Equity & Accessibility
Voices is an equal opportunity employer committed to fostering an inclusive and accessible workplace. We welcome applications from individuals of all backgrounds and experiences.
If you require accommodation during the recruitment process, please let us know, and we will work with you to meet your needs.
 
Apply Online
If this sounds like a role where you’d thrive, we’d love to hear from you. Interested candidates are encouraged to send their cover letter and résumé by completing the online application.  By doing so, your resume is guaranteed to be reviewed.
 
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