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Senior Applications ​/ Software Architect Level 3 to support secure application architecture, software integration, and

Job in Ottawa, Ontario, Canada
Listing for: S I Systems
Full Time position
Listed on 2026-08-09
Job specializations:
  • Software Development
    Software Architect, DevOps, Backend Developer, Database Engineering
Salary/Wage Range or Industry Benchmark: 110000 - 150000 CAD Yearly CAD 110000.00 150000.00 YEAR
Job Description & How to Apply Below

Senior Applications / Software Architect Level 3 to support secure application architecture, software integration, and data management initiatives within complex defence and security environments

Our public sector client is seeking a Senior Applications / Software Architect Level 3 to support secure application architecture, software integration, and data management initiatives within complex defence and security environments
.

This role supports the design, development, integration, and sustainment of software solutions operating within secure and classified environments. The position focuses on application architecture, data integration, secure network operations, systems interoperability, application deployment, and information management across multiple enterprise and operational platforms.

Responsibilities

  • Design and implement application and software architectures supporting enterprise and operational information systems
  • Develop integration solutions for structured and unstructured data sources across multiple platforms and environments
  • Design and maintain scalable services supporting data storage, processing, auditing, monitoring, and security requirements
  • Define and implement access control strategies, authentication mechanisms, and secure data management practices
  • Develop data ingestion, transformation, and integration services supporting real-time and batch processing requirements
  • Design, develop, and maintain application programming interfaces (APIs), middleware components, and data exchange services
  • Develop dashboards, reporting solutions, user interfaces, and visualization capabilities to support operational and business requirements
  • Develop and maintain application source code, automation scripts, workflows, and deployment pipelines across development, testing, and production environments
  • Support software release management, configuration management, and continuous integration/continuous delivery (CI/CD) processes
  • Analyze, troubleshoot, and resolve complex technical issues involving operating systems, virtualization technologies, enterprise infrastructure, networked applications, and secure computing environments
  • Produce technical architecture documentation, solution designs, implementation plans, and operational support documentation
  • Collaborate with stakeholders, technical teams, and solution architects to ensure interoperability, scalability, security, and performance requirements are achieved
  • Support technology modernization initiatives, architecture reviews, and system integration activities
  • Provide technical guidance and recommendations regarding software architecture, integration strategies, operational risks, and emerging technologies

Must Haves

  • Applications/Software Architect - 10+ years
  • Programming Operating Systems &
    Tactical Data Links (secure/unsecured)

Nice to Have

  • Experience developing enterprise architecture frameworks, technical roadmaps, and solution strategies for government organizations or large enterprises
  • Experience supporting the installation, integration, or upgrade of hardware and software infrastructure
  • Experience configuring and integrating enterprise technologies in collaboration with vendors and technical teams
  • Experience developing, implementing, or testing disaster recovery and business continuity solutions
  • Experience preparing work plans, technical schedules, project documentation, and progress reports
  • Experience working within cybersecurity, secure communications, or classified environments

Our public sector client is seeking a Senior Applications / Software Architect Level 3 to support secure application architecture, software integration, and data management initiatives within complex defence and security environments
.

This role supports the design, development, integration, and sustainment of software solutions operating within secure and classified environments. The position focuses on application architecture, data integration, secure network operations, systems interoperability, application deployment, and information management across multiple enterprise and operational platforms.

Responsibilities

  • Design and implement application and software architectures supporting enterprise and operational information systems
  • Develop integration solutions for structured and unstructured data sources across multiple platforms and environments
  • Design and maintain scalable services supporting data storage, processing, auditing, monitoring, and security requirements
  • Define and implement access control strategies, authentication mechanisms, and secure data management practices
  • Develop data ingestion, transformation, and integration services supporting real-time and batch processing requirements
  • Design, develop, and maintain application programming interfaces (APIs), middleware components, and data exchange services
  • Develop dashboards, reporting solutions, user interfaces, and visualization capabilities to support operational and business requirements
  • Develop and maintain application source code, automation…
Position Requirements
10+ Years work experience
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