Senior Mobile Developer

• Speer Technologies is a dynamic technology hub based in Toronto, partnered with some of the largest technology incubators in the Greater Toronto Area. We are a team of passionate innovators and open-minded thinkers, dedicated to building groundbreaking technologies. Our products are on the path to receiving FDA and ADA approvals or provisional patents, with partnerships spanning Italy, Germany, California, and France.
• As a startup, we thrive on creativity, collaboration, and the drive to push boundaries. Our fast-paced environment offers exposure to a variety of programming languages, software, and work environments, ensuring a rich learning experience. We provide ample opportunities for personal and professional growth, all while fostering an inclusive and barrier-free workplace.
• Speer is an equal opportunity employer and is committed to providing an inclusive and barrier-free recruitment process. We will accommodate the needs of applicants under the Ontario Human Rights Code and the Accessibility for Ontarians with Disabilities Act (AODA) throughout all stages of the recruitment and selection process.
• Please advise Speer of any accommodations you may require to ensure your equal participation in the recruitment and selection process. Information received relating to accommodation measures will be addressed confidentially.

• Growth Opportunities: We offer the chance to grow with the company and take on new responsibilities as we expand.
• Dynamic Environment: Our fast-paced startup environment ensures no two days are the same.
• Innovation: Be part of a team that's pushing the boundaries of technology and making a real impact.
• Inclusive Workplace: We are committed to creating an inclusive environment where all employees can thrive.

As a Senior Mobile Developer, you’ll play a leading role in shaping and delivering high-quality mobile solutions across iOS and Android platforms. You’ll be responsible for guiding technical decisions, mentoring junior developers, and collaborating closely with product and design teams to bring innovative ideas to life.

• Lead the design, development, and deployment of scalable cross-platform mobile applications using Swift, Kotlin, or React Native.
• Architect mobile application frameworks and shared component libraries across iOS, Android, and React Native environments.
• Oversee end-to-end delivery — from mobile UX/UI integration to backend API development.
• Collaborate with cross-functional teams to define mobile app strategies, technical requirements, and performance goals.
• Review code, enforce best practices, and mentor team members to improve technical excellence.
• Develop and integrate REST APIs and third-party SDKs to support dynamic mobile features.
• Optimize app performance, monitor crash analytics, and ensure top-tier reliability.
• Drive improvements to CI/CD workflows and release management for mobile apps (App Store / Play Store).

• Own and evolve the mobile architecture, ensuring scalability, maintainability, and security.
• Collaborate with backend teams to design robust, API-driven systems supporting mobile clients.
• Conduct and oversee peer code reviews, enforce test coverage, and implement continuous integration.
• Lead performance tuning and debugging efforts across both client and server environments.
• Stay at the forefront of emerging mobile technologies, frameworks, and design patterns, sharing insights with the team.
• Contribute to company-wide technical discussions and long-term product roadmap planning.

• 5+ years of professional experience in mobile development (iOS, Android, or cross-platform).
• 3+ years of experience using React Native, Swift, or Kotlin in production environments.
• Strong foundation in full stack development (Node.js, Express.js, MongoDB, Redis, React.js).
• Proven experience architecting complex mobile applications and integrating with scalable backend systems.
• Expertise in RESTful APIs, OAuth/JWT authentication, and third-party SDKs.
• Proficiency with Git, Agile development, and CI/CD pipelines.
• Experience deploying and maintaining apps in both App Store and Google Play environments.

• Experience with Jest, Cypress, or other testing libraries.
• Experience with mobile CI/CD tools like Fastlane, Bitrise, or GitHub Actions.
• Familiarity with containerization and cloud platforms (Docker, GCP, AWS).
• Previous work with service-oriented architecture (SOA) or microservices.
• Understanding of accessibility standards and performance optimization techniques.

• An Agile mindset with experience working in dynamic product teams.
• A spirit of collaboration and transparent communication.
• A passion for elegant UX and well-architected systems.
• High personal development standards, including documentation, testing, and clean code.
• A willingness to grow across the stack — from mobile interfaces to backend APIs.
• Team spirit and a sense of humour is always great!
• Fluency in French is an asset.

• Job Type: Full-Time
• Pay: $70,000–$100,000 a year
• Flexible Language Requirement: French not required
• Schedule: 8 hour shift, Monday to Friday, Overtime

• Dental care
• Paid time off
• Vision care
• Wellness program