Applications Architect Senior

Job Title: Applications Architect - Senior
Client: Government Services Integration Cluster
Ministry: Ministry of Public and Business Service Delivery and Procurement

Location: 222 Jarvis Street Toronto Ontario
Work Model: Onsite 5 days a week

Key Responsibilities
Lead the design development and delivery of enterprise grade iOS and Android applications using native (Swift Objective C Java) and hybrid (React Native TypeScript) technologies.
Architect secure scalable mobile applications and oversee UI/UX implementation across multiple form factors localizations and OS specific patterns.
Guide teams in building high performance multithreaded apps leveraging device capabilities such as camera Bluetooth sensors storage and secure OS modules (Secure Enclave / TEE / Strongbox).
Implement and maintain code quality standards and robust testing practices to ensure high quality product delivery.
Experience with Apple and Google wallets or custom digital wallets such as add passes/credentials to a wallet and mobile verifier app for credentials.
Support publication and lifecycle management of apps in the Apple App Store or Google Play Store.
Lead development and maintenance of the secure mobile applications by applying OS level security guidelines secure coding practices and ongoing patching and vulnerability fixes.
Ensure comprehensive documentation of code processes system designs and mobile architecture to support long term maintainability.
Lead development of digital credential wallets and mobile identity solutions using W3C VC data models DIDs mDOC and related decentralized identity technologies.
Provide technical leadership on credential exchange cryptographic protocols (OIDC OAuth2 JWT/JWSCBOR/COSE ECDSA P-256Ed25519 TLS PKI) and standards compliance (PCTFODIFIETF NIST eIDAS).
Oversee integrations with backend services using REST SOAP event driven systems and cloud native architectures (Docker Kubernetes).
Lead Agile development teams facilitating sprint planning backlog refinement code reviews and technical design sessions.
Mentor developers and cultivate a strong engineering culture emphasizing user centered design accessibility performance and secure engineering.
Collaborate with product managers UX designers cybersecurity teams and platform architects to align mobile engineering work with enterprise roadmaps and strategic goals.
This position is listed as Onsite; the resource is expected to work between the standard working hours of 8:00-5:00 PM (excluding lunch breaks) every Monday to Friday inclusive at the identified OPS office location.

Mobile Development Leadership 60%

Architect and implement both native and hybrid mobile applications leveraging Swift Java React Native and TypeScript ensuring performance security and maintainability. Primarily the development is based on React Native and TypeScript.
Lead the design development and delivery of enterprise grade iOS and Android applications using native technologies (Objective-C / Swift Xcode or Java with Android Studio).
Oversee UI development to support different screen resolutions localization and OS specific UX patterns.
Guide teams in building mobile applications ensuring efficient use of device resources such as memory storage cameras Bluetooth sensors and secure OS capabilities.
Ensure delivery of high quality apps through continuous integration pipelines automated builds testing and deployment workflows.
Experience with Apple and Google wallets or custom digital wallets such as add credentials to a wallet and mobile verifier app for credentials.
Knowledge of using Secure Enclave TEE and/or Strongbox.
Support publication and lifecycle management of apps in the Apple App Store or Google Play Store.
Implement security fixes and patch updates to maintain the integrity and security posture of mobile applications.
Document code processes and procedures to support knowledge sharing and long term maintainability of mobile solutions.
Ensure compliance with secure coding practices mobile OS security guidelines and enterprise cyber standards.

Team Leadership Delivery & Agile Practices 20%

Lead multidisciplinary development teams using Agile methodologies including sprint planning backlog refinement estimation and technical ceremonies.
Review and develop technical documentation architecture artefacts developer guides and integration specifications.
Support team adoption of Agile engineering practices including automated testing test case development CI/CD integration and code quality processes.
Mentor and coach developers fostering a strong engineering culture focused on user centered design accessibility and secure coding.
Effectively manage competing priorities timelines and deliverables in a fast paced environment.
Collaborate with product UX cybersecurity and platform teams to ensure alignment with enterprise strategy and technical roadmaps.

Back End Integration & API Architecture 15%

Oversee integration of mobile applications with RESTful APIs and secure back end platforms developed in Java Python and similar stacks.
Provide guidance in developing solutions using distributed event driven architectures secure messaging systems and cloud native containerized environments (Docker Kubernetes).
Ensure robust back end interaction patterns including authentication authorization encryption and secure data exchange.

Digital Trust & Verifiable Credentials (VC) 5%

In-depth development experience with W3C verifiable credential data model ISO/IEC 18013-X ISO/IEC 23220-X (mDOC) decentralized identifiers (DIDs) X.509 certificates zero knowledge proof and OpenID4VC.
Oversee development of React Native based digital credentials wallets that use secure storage OS cryptography APIs and platform specific security modules.
Ensure compliance with global digital identity standards and/or specifications such as W3C Verifiable Credentials IETF OIDF PCTF NIST and eIDAS(ARF).
Provide development guidance on wallet and security protocols such as OIDC OIDF OpenID4VC/OpenID4VP W3C DC-API OAuth2 JWT/JWS(JOSE) TLS PKI CBOR/COSE ECDSA P-256Ed25519 SHA/SHA2 and RSA.
Lead teams in developing responsive mobile interfaces progressive web applications and secure integration with back end identity services.

Must have 5 years of experience with React Native

Must have at least 4 years of experience in a hands-on Lead Developer experience.

Must have strong team management and leadership skills - working with various stakeholders and organizing team members.

Please review the JD/skill sets for additional skill set