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Senior Software Programmer Jobs in Waterloo, ON (NOW HIRING)

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 ...

Agfa

Senior Software Developer Cloud

Waterloo, ON · On-site

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 ...

Dialpad

Sr. SDET

Kitchener, ON · On-site

Your role As a Senior Software Developer in Test (SDET) in the Contact Center QA team, you're both a skilled developer who builds elegant, scalable test frameworks and a quality advocate who leads a ...

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Senior Software Programmer information

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

AspectSenior Software ProgrammerSoftware Developer
CredentialsBachelor's degree in CS or related field; experience often 5+ yearsBachelor's degree in CS or related field; entry to mid-level experience
Work EnvironmentCollaborates on complex projects, mentors junior staffDesigns, develops, and maintains software applications
Industry UsageCommon in tech, finance, healthcare sectorsWidely used across various industries
Search/Comparison IntentUnderstanding senior-level roles and responsibilitiesEntry to mid-level development roles

The main difference between a Senior Software Programmer and a Software Developer lies in experience, responsibilities, and scope. Senior Software Programmers typically have more experience, take on complex projects, and mentor others, whereas Software Developers focus on designing and building software applications at an entry or mid-level. Both roles require similar educational backgrounds but differ in seniority and project complexity.

What cities near Waterloo, ON are hiring for Senior Software Programmer jobs?

Cities near Waterloo, ON with the most Senior Software Programmer job openings:

Infographic showing various Senior Software Programmer job openings in Waterloo, ON as of August 2026, with employment types broken down into 77% Full Time, 20% Part Time, and 3% Contract. Highlights an 85% Physical, 4% Hybrid, and 11% Remote job distribution.

Senior Software Engineer / Software Developer (React Native)

Waterloo, ON

PlayStation Global
Manufacturing • 1 - 5K employees
Learn more about PlayStation Globalexternal

Full-time

Re-posted 17 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