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Citi Logo Citi · IT - Software Development

Lead .NET Developer

Canada, Mississauga 145100.00 - 217700.00 USD / Year · Job Posted May 05, 2026
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Job Description

The Applications Development Technology Senior Lead Analyst is a senior level position responsible for architecting, designing and building enterprise CRM application systems using .NET software stack, SQL, Kafka and Elasticsearch. This role is expecting hands-on software development, with primary focus on .NET

Job Responsibility

  • Architecture & design: Lead solution design (application layering, APIs, integration patterns, data structures) and produce clear technical architecture and designs aligned to enterprise standards
  • Hands-on full-stack delivery: Design, build, test, and deploy features across .NET services, and data layers
  • remain actively involved in coding for critical components
  • Event-driven integration: Build and operate Kafka-based event streaming patterns (producers/consumers, topics, schema/versioning, retry/idempotency) to support scalable integrations
  • Search and indexing: Implement Elasticsearch-based indexing and query patterns for high-volume search and retrieval use cases
  • ensure relevancy, performance, and operability
  • Data engineering on SQL: Design efficient relational schemas and write/tune complex SQL
  • drive performance optimization and data consistency across services
  • Engineering excellence: Establish best practices for code reviews, automated testing, secure coding, CI/CD, and observability
  • reduce defects and improve release confidence
  • Technical leadership: Mentor developers, unblock delivery teams, and influence cross-functional stakeholders
  • drive pragmatic tradeoffs across scope, timeline, and quality
  • Production ownership: Partner with DevOps/SRE and support teams to ensure stable releases, effective monitoring, rapid incident triage, and continuous improvement

Requirements

  • 10+ years of professional software engineering experience delivering enterprise applications, with significant recent hands-on coding responsibility
  • Strong experience building backend services using .NET (C#), including API design, integration patterns, security considerations, and performance tuning
  • Advanced SQL skills, including schema design, complex query authoring, and performance optimization
  • Hands-on experience with Kafka for event streaming and asynchronous integration
  • Hands-on experience with Elasticsearch (indexing, querying, mapping strategies, performance and troubleshooting)
  • Strong engineering fundamentals (OO design, data structures, clean code, testability) and disciplined delivery practices (code reviews, CI/CD)
  • Ability to communicate design decisions clearly and partner effectively with product, architecture, and operations stakeholders
  • Bachelor's degree/University degree or equivalent experience

Nice to have

  • CRM functional knowledge (e.g., lead/opportunity management, customer onboarding, case/service workflows, activities/interactions) and experience delivering CRM-adjacent capabilities
  • Experience with distributed systems patterns (caching, circuit breakers, backpressure, resiliency) and observability (logging/metrics/tracing)
  • Experience with containerized deployments (Docker/Kubernetes/OpenShift) and cloud or hybrid environments
  • Experience with automated testing practices across unit, integration, and end-to-end tests
  • Master's degree preferred
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