Software Developer - Mobile - Senior

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Ref: RQ10456 Contract – 12 Months (Extension Possible) Onsite – Toronto (222 Jarvis Street)
Posted Date: 2026-02-13
Location: Onsite – Toronto (222 Jarvis Street)
Public Sector Experience: Required – OPS / Public Sector
Contract End Date: 2027-03-31 *
Rate: $93/hour

The Software Developer – Mobile – Senior will design, develop, secure, and maintain Ontario’s Digital Credential Wallet for iOS and Android within the Government Services Integration Cluster. The resource will work onsite 5 days per week and support secure, standards-based mobile identity and digital credential solutions.

Responsibilities
  • Design, implement, test, and deploy production-grade iOS and Android applications using native and hybrid technologies.
  • Develop secure credential issuance, storage, presentation, and verification flows using W3C Verifiable Credentials and related protocols.
  • Integrate SD-JWT, SD-JWT-VC, ISO/IEC mdoc (mDL), and selective disclosure mechanisms.
  • Implement wallet integrations including Apple Wallet, Google Wallet, or custom digital wallets.
  • Leverage device capabilities such as Secure Enclave, TrustZone, camera, Bluetooth, and secure storage.
  • Support backend integrations using REST APIs, Node.js, Java, and cloud-native architectures.
  • Apply security patches, OS upgrades, and cryptographic updates in compliance with global digital identity standards.
  • Participate in Agile ceremonies and contribute to documentation, testing, and CI/CD processes.
Must Have Skills
  • Extensive experience developing commercial-grade iOS and Android applications using Swift, Objective-C, Java, React Native, and TypeScript.
  • Published mobile applications in Apple App Store or Google Play Store.
  • Strong knowledge of mobile OS architecture, multithreading, and secure mobile development practices.
  • Experience with digital wallet implementations and secure element technologies such as Secure Enclave or TrustZone.
  • Hands-on experience with W3C Verifiable Credentials, DIDs, SD-JWT, ISO mdoc, and related digital identity protocols.
  • Experience integrating with RESTful APIs and backend platforms using Node.js, Java, or Python.
  • Strong understanding of cryptographic protocols including OAuth2, JWT/JWS, JOSE/COSE, TLS, PKI, ECDSA, and RSA.
  • Experience working in Agile environments with CI/CD pipelines and automated testing.
* Final role details, responsibilities, and terms will be confirmed with shortlisted candidates. Compensation may vary based on experience. Errors and omissions excepted.