We are seeking a Senior Mobile Software Developer to design, secure, and maintain a high-stakes Digital Credential Wallet. This role is centered on building production-grade iOS and Android applications that adhere to global Digital Identity frameworks. You will implement cutting-edge verifiable credential flows, ensuring high-assurance interoperability with diverse systems. The ideal candidate has deep expertise in decentralized identity, mobile hardware security (Secure Enclave/TrustZone), and privacy-preserving protocols like SD-JWT and ISO mdoc.
...
Pay Rate: $505.05- $541.47/Diem
Advantages
- Leading-Edge Technology: Work at the forefront of the Decentralized Identity (DID) movement and the architecture of verifiable credentials.
- Hardware Security Focus: Exercise high-level skills in mobile hardware encryption and cryptographic update management.
- Standard-Setting Work: Influence how digital identities are verified across global jurisdictions through interoperable, open-source standards.
- Stability: Secure a long-term contract in a structured professional environment that values technical excellence and mobile security.
Responsibilities
- Mobile Engineering: Implement native and hybrid applications using Swift/Objective-C, Java/Android Studio, and React Native/TypeScript.
- Digital Trust Integration: Implement issuance and verification flows using W3C Verifiable Credentials, OpenID for Verifiable Credential Issuance (OID4VCI), and OpenID for Verifiable Presentations (OID4VP).
- Hardware-Level Security: Utilize device-bound keys and hardware-level encryption (HLE) via Apple Secure Enclave and Android TrustZone for holder binding.
- Privacy & Standards Compliance: Ensure credential flows support selective disclosure and privacy preservation using SD-JWT, SD-JWT-VC, and ISO/IEC 18013-5 (mdoc/mDL).
- Verification Design: Design presentation flows for in-person proximity and remote verification aligned with ISO/IEC 18013-7.
- Open Source Collaboration: Maintain and extend interoperable wallet components by integrating solutions from the Open Wallet Foundation (Credo/Bifold) and Hyperledger Indy.
- Status Management: Integrate token/credential status checks using IETF Token Status Lists (TSL) and map to web-based ecosystems where applicable.
Qualifications
Mobile Development:
- Commercial-grade experience with native iOS and Android languages.
- Strong experience developing multithreaded applications.
- Deep understanding of mobile OS architecture (User Interface, Memory Management, Cybersecurity).
- Must have apps published in the Apple App Store or Google Play Store.
- Experience with Apple and Google Wallets or custom digital wallet development.
Digital Trust and Verifiable Credentials:
- Developing mobile solutions with Open Wallet Foundation products (Credo/Bifold).
- Experience with Aca-Py and Hyperledger Indy technology stacks.
- Expertise in SD-JWT, mDOC, JSON-LD, and Anoncreds (AIP 1 and 2).
- Mastery of OID4VCI 1.0 and OID4VP for high-assurance interoperability.
Back End Integration:
- Proficiency in Java (Spring), Node.js, and Python (Django).
- Experience with API management tools and RESTful/SOAP services.
- Familiarity with Docker, Kubernetes, and event-driven systems.
Agile Collaboration:
- Experienced in Agile/Scrum ceremonies and technical documentation.
- User-focused/centered design mindset to solve complex mobile challenges.
Summary
If you are a Mobile Developer who thrives on technical complexity and is passionate about building the future of secure, private digital credentials, we encourage you to apply today!
Randstad Canada is committed to fostering a workforce reflective of all peoples of Canada. As a result, we are committed to developing and implementing strategies to increase the equity, diversity and inclusion within the workplace by examining our internal policies, practices, and systems throughout the entire lifecycle of our workforce, including its recruitment, retention and advancement for all employees. In addition to our deep commitment to respecting human rights, we are dedicated to positive actions to affect change to ensure everyone has full participation in the workforce free from any barriers, systemic or otherwise, especially equity-seeking groups who are usually underrepresented in Canada's workforce, including those who identify as women or non-binary/gender non-conforming; Indigenous or Aboriginal Peoples; persons with disabilities (visible or invisible) and; members of visible minorities, racialized groups and the LGBTQ2+ community.
Randstad Canada is committed to creating and maintaining an inclusive and accessible workplace for all its candidates and employees by supporting their accessibility and accommodation needs throughout the employment lifecycle. We ask that all job applications please identify any accommodation requirements by sending an email to accessibility@randstad.ca to ensure their ability to fully participate in the interview process.
This posting is for existing and upcoming vacancies.
show more
We are seeking a Senior Mobile Software Developer to design, secure, and maintain a high-stakes Digital Credential Wallet. This role is centered on building production-grade iOS and Android applications that adhere to global Digital Identity frameworks. You will implement cutting-edge verifiable credential flows, ensuring high-assurance interoperability with diverse systems. The ideal candidate has deep expertise in decentralized identity, mobile hardware security (Secure Enclave/TrustZone), and privacy-preserving protocols like SD-JWT and ISO mdoc.
Pay Rate: $505.05- $541.47/Diem
Advantages
- Leading-Edge Technology: Work at the forefront of the Decentralized Identity (DID) movement and the architecture of verifiable credentials.
- Hardware Security Focus: Exercise high-level skills in mobile hardware encryption and cryptographic update management.
- Standard-Setting Work: Influence how digital identities are verified across global jurisdictions through interoperable, open-source standards.
- Stability: Secure a long-term contract in a structured professional environment that values technical excellence and mobile security.
...
Responsibilities
- Mobile Engineering: Implement native and hybrid applications using Swift/Objective-C, Java/Android Studio, and React Native/TypeScript.
- Digital Trust Integration: Implement issuance and verification flows using W3C Verifiable Credentials, OpenID for Verifiable Credential Issuance (OID4VCI), and OpenID for Verifiable Presentations (OID4VP).
- Hardware-Level Security: Utilize device-bound keys and hardware-level encryption (HLE) via Apple Secure Enclave and Android TrustZone for holder binding.
- Privacy & Standards Compliance: Ensure credential flows support selective disclosure and privacy preservation using SD-JWT, SD-JWT-VC, and ISO/IEC 18013-5 (mdoc/mDL).
- Verification Design: Design presentation flows for in-person proximity and remote verification aligned with ISO/IEC 18013-7.
- Open Source Collaboration: Maintain and extend interoperable wallet components by integrating solutions from the Open Wallet Foundation (Credo/Bifold) and Hyperledger Indy.
- Status Management: Integrate token/credential status checks using IETF Token Status Lists (TSL) and map to web-based ecosystems where applicable.
Qualifications
Mobile Development:
- Commercial-grade experience with native iOS and Android languages.
- Strong experience developing multithreaded applications.
- Deep understanding of mobile OS architecture (User Interface, Memory Management, Cybersecurity).
- Must have apps published in the Apple App Store or Google Play Store.
- Experience with Apple and Google Wallets or custom digital wallet development.
Digital Trust and Verifiable Credentials:
- Developing mobile solutions with Open Wallet Foundation products (Credo/Bifold).
- Experience with Aca-Py and Hyperledger Indy technology stacks.
- Expertise in SD-JWT, mDOC, JSON-LD, and Anoncreds (AIP 1 and 2).
- Mastery of OID4VCI 1.0 and OID4VP for high-assurance interoperability.
Back End Integration:
- Proficiency in Java (Spring), Node.js, and Python (Django).
- Experience with API management tools and RESTful/SOAP services.
- Familiarity with Docker, Kubernetes, and event-driven systems.
Agile Collaboration:
- Experienced in Agile/Scrum ceremonies and technical documentation.
- User-focused/centered design mindset to solve complex mobile challenges.
Summary
If you are a Mobile Developer who thrives on technical complexity and is passionate about building the future of secure, private digital credentials, we encourage you to apply today!
Randstad Canada is committed to fostering a workforce reflective of all peoples of Canada. As a result, we are committed to developing and implementing strategies to increase the equity, diversity and inclusion within the workplace by examining our internal policies, practices, and systems throughout the entire lifecycle of our workforce, including its recruitment, retention and advancement for all employees. In addition to our deep commitment to respecting human rights, we are dedicated to positive actions to affect change to ensure everyone has full participation in the workforce free from any barriers, systemic or otherwise, especially equity-seeking groups who are usually underrepresented in Canada's workforce, including those who identify as women or non-binary/gender non-conforming; Indigenous or Aboriginal Peoples; persons with disabilities (visible or invisible) and; members of visible minorities, racialized groups and the LGBTQ2+ community.
Randstad Canada is committed to creating and maintaining an inclusive and accessible workplace for all its candidates and employees by supporting their accessibility and accommodation needs throughout the employment lifecycle. We ask that all job applications please identify any accommodation requirements by sending an email to accessibility@randstad.ca to ensure their ability to fully participate in the interview process.
This posting is for existing and upcoming vacancies.
show more
