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Sr Software Engineer Jobs in Waterloo, ON (NOW HIRING)

Sonova

Senior Software Developer

Kitchener, ON · Hybrid

Kitchener, Ontario - Hybrid Senior Software Developer Join Sonova's Manufacturing Software team and help develop the sophisticated solutions that power our production while enabling data-driven ...

Pagefreezer

Senior Software Developer (Remote)

Waterloo, ON · Remote

CA$110K - CA$145K/yr

What You'll Do as a Senior Software Developer * Design & Scale Robust Architecture: Develop and maintain systems using sound architectural principles, ensuring high availability, resource efficiency ...

BinSentry

Senior Software Developer - HD

Kitchener, ON · On-site

CA$100K - CA$140K/yr

As we scale up, we are looking for a Senior Software Developer to help us build the software that is changing the face of the feed industry. This is a new vacancy due to growing business needs. Job ...

OpenText

Sr Software Developer

Waterloo, ON

CA$86K - CA$130K/yr

As a Sr Software Developer, you will: * Provide strong leadership for the team, wielding technical and business influence beyond team boundaries. * Drive multi-team initiatives spanning diverse ...

Agfa

Senior Software Developer Cloud

Waterloo, ON

We are seeking a Senior Software Developer to join our Waterloo team. As a vital member of our team, you will be involved in the full software development lifecycle, including design, implementation ...

Targeted Talent

Senior C++ Software Engineer

Kitchener, ON · Remote

$120K - $150K/yr

We are looking for an experienced Senior C++ Software Engineer for our client. This is a permanent position that is remote . Our client is a B.C based tech company enjoying substantial growth. The ...

Targeted Talent

Senior C++ Software Engineer

Waterloo, ON · Remote

$120K - $150K/yr

We are looking for an experienced Senior C++ Software Engineer for our client. This is a permanent position that is remote . Our client is a B.C based tech company enjoying substantial growth. The ...

Targeted Talent

Senior C++ Software Engineer

Kitchener, ON · Remote

$120K - $150K/yr

We are looking for an experienced Senior C++ Software Engineer for our client. This is a permanent position that is remote . Our client is a B.C based tech company enjoying substantial growth. The ...

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Sr Software Engineer information

What are the key skills and qualifications needed to thrive as a Sr Software Engineer?

To thrive as a Sr Software Engineer, you need advanced programming skills, a strong grasp of software design principles, and typically a degree in computer science or a related field. Expertise with development frameworks, version control systems like Git, and familiarity with cloud platforms or containerization tools is often required. Exceptional problem-solving abilities, clear communication, and leadership skills set top performers apart in collaborative environments. These competencies ensure the efficient delivery of high-quality software solutions and effective mentorship within development teams.

What are some common challenges Sr Software Engineers face when leading technical projects?

Sr Software Engineers often encounter challenges such as balancing hands-on coding with mentoring less experienced team members, managing shifting project requirements, and ensuring timely delivery while maintaining high code quality. They are frequently responsible for making critical architectural decisions and resolving complex technical issues that arise during the development process. Additionally, effective communication with cross-functional teams and stakeholders is key to aligning technical solutions with business goals.

What is a Sr Software Engineer?

Sr Software Engineers are experienced professionals who design, develop, and maintain complex software systems. They often lead technical projects, mentor junior team members, and collaborate with stakeholders to ensure software meets business needs. In addition to coding, they are responsible for making architectural decisions, reviewing code, and ensuring best practices are followed. Sr Software Engineers typically have several years of industry experience and deep expertise in specific programming languages or technologies.

What cities near Waterloo, ON are hiring for Sr Software Engineer jobs?

Cities near Waterloo, ON with the most Sr Software Engineer job openings:

Sr Software Engineer jobs near you
Infographic showing various Sr Software Engineer job openings in Waterloo, ON as of August 2026, with employment types broken down into 1% Internship, 81% Full Time, 14% Part Time, 1% Temporary, and 3% Contract. Highlights an 85% Physical, 4% Hybrid, and 11% Remote job distribution.

Senior Software Engineer / Software Developer (React Native)

PlayStation Global

Waterloo, ON

Full-time

Posted 20 days ago

Job description

Senior Software Engineer / Software Developer (React Native) 

Build what's next for players.

We're a startup inside Sony PlayStation. Fast-moving, experimental, and highly ambitious. Backed by the scale, resources, and trust of Sony Interactive Entertainment. We're building new mobile and web experiences that help gamers connect, discover, and play together in better ways. This is a rare opportunity to design at startup speed and drive huge impact inside the largest gaming company in the world.

We are seeking a Senior Software Engineer / Software Developer specializing in React Native and high-performance frontend development for mobile platforms. In this role, you will define the architecture, frameworks, and technical best practices.

You will collaborate closely with engineers, product, and design teams to deliver best-in-class user interfaces that are performant, accessible, and delightful at scale. As a Senior Engineer, you will provide technical leadership across teams, mentor engineers, and push the boundaries of what's possible in cross-platform frontend development.

Responsibilities

  • Define and evolve the frontend architecture for client applications on mobile using React Native and modern JavaScript/TypeScript.
  • Drive performance optimizations and best practices for rendering, startup time, and UI responsiveness.
  • Design and integrate custom native modules (Native Android or Native iOS) and optimize cross-platform interoperability.
  • Partner with product managers, designers, and researchers to translate user experience requirements into elegant, maintainable solutions.
  • Establish coding standards, testing strategies, and development patterns that raise the quality bar for frontend engineering.
  • Mentor engineers and act as a multiplier for frontend development expertise across the broader team.
  • Investigate new frontend technologies, frameworks, and performance techniques, and guide their adoption when appropriate.
  • Represent frontend/OS needs in technical and architectural discussions.

Requirements

  • 5+ years of software development experience, with significant experience building React Native apps or high-performance JavaScript/TypeScript applications.
  • BS/MS degree in Computer Science or equivalent.
  • Expertise in native Android development (Kotlin/Java/Gradle) and shipping applications to the Google Play Store.
  • Strong expertise in frontend performance profiling, optimization, and debugging.
  • Passion for delivering world-class user interfaces with exceptional performance.
  • Deep understanding of cross-platform architecture and how to bridge between JS and native modules.
  • Proven track record of delivering production-quality mobile or desktop applications with React Native.
  • Experience designing scalable frontend architectures and reusable UI frameworks.
  • Strong collaboration skills and ability to work closely with native engineers, designers, and product managers.
  • Demonstrated technical leadership: leading projects, mentoring engineers, or setting engineering strategy.

Bonus

  • A track record of building social, community, gaming, or other consumer products.
  • Familiarity with VoIP, call dialing and ringing flows in Android/React Native
  • Experience with accessibility, internationalization, and UI testing frameworks. 
  • Familiarity with CI/CD pipelines and modern build systems for frontend development.
  • Previous experience at an early-stage startup or on a zero-to-one product team.

Apply