Software Developer - Mobile

Source Code; Toronto; On-site; CAD 80,000 - 100,000; Full time

Job summary

A leading software company is looking for a candidate with extensive experience in developing commercial-grade mobile applications for both iOS and Android platforms. The ideal applicant should possess proficiency in native languages like Objective-C and Swift for iOS, Java for Android, and should be familiar with React Native. Knowledge in OpenID protocols, decentralized identifiers, and compliance with digital identity standards is essential. This is a contract position with a potential for extension.

Qualifications

• Experience working on commercial grade mobile applications in native languages.
• Familiarity with OpenID for Verifiable Credential Issuance and Presentations.
• Knowledge with ISO/IEC 18013 standards.

Skills

Experience with iOS applications using Objective-C/Swift

Experience with Android applications using Java

React Native

Knowledge of Verifiable Credentials

Familiarity with OpenID protocols

Experience with decentralized identifiers

Knowledge of certificate standards

Understanding of device-bound keys for binding

Job description

Contract (1+ year, with high possibility of extension)

Must have

• Experience working with commercial grade mobile iOS and Android applications using native languages (Objective-C / Swift, Xcode or Java with Android Studio).
• React Native.
• Experience with OpenID for Verifiable Credential Issuance (OID4VCI 1.0) and OpenID for Verifiable Presentations (OID4VP); ability to issue both SD‑JWT‑VC and ISO mdoc credentials per high‑assurance interop profiles.
• Knowledge with ISO/IEC 18013‑5 (mdoc/mDL) and 18013‑7 (online presentation); familiarity with 23220‑4 operational protocols is an asset.
• Experience with W3C verifiable credential data model, and decentralized identifiers (DIDs), X.509 certificates (RFC 5280), zero-knowledge proofs, SD-JWT, JWT, JSON-LD
• Experience with JOSE/COSE, Oauth2 JWT/JWS , ECDSA/EdDSA , ECC/RSA , TLS , PKI , device‑bound keys for holder binding (e.g., SD‑JWT+KB (key binding) and mdoc transaction signing ).
• Ensure compliance with global digital identity standards and/or specifications such as W3C Verifiable Credentials , IETF, OIDF,PCTF , NIST , and eIDAS(ARF) .