Senior Dotnet Developer

Lorven Technologies Inc.; Mississauga; Hybrid; CAD 120,000 - 160,000; Part time

Job summary

Lorven Technologies Inc. in Mississauga, Ontario, is seeking a senior software engineer with 7+ years of multi-team production experience to own end-to-end delivery of scalable back-end and front-end systems.

The role requires deep .NET/C#, React expertise, and strong Azure and database skills, with a focus on microservices, containers, and CI/CD in a hybrid setup. The successful candidate will drive architectural decisions, mentor teams, and advocate for best practices in testing,

Qualifications

• 7+ years of professional software engineering in a multi-team, production environment.
• .NET Framework / .NET Core / C# – expert-level APIs, microservices and back-end systems; SOLID.
• React front-end with scalable architecture; state management and performance focus.
• Java or Kotlin familiarity; read and reason about codebases beyond primary stack.
• Azure services: ACA, Web Apps, Service Bus, PostgreSQL, Key Vault, Application Gateway, VNets, Private Endpoints.
• SQL Server & PostgreSQL - relational design, indexing, performance tuning.
• RESTful API design for scalable, secure APIs.
• Microservices architecture and distributed systems concepts.
• Docker containers and containerized deployment expertise.
• CI/CD pipelines using Azure DevOps / GitHub Actions.
• Agile/Scrum lifecycle and SDLC understanding.
• Proven use of AI-assisted development tools in daily workflows.

Responsibilities

• Design and deliver scalable, fault-tolerant services across microservices platform.
• Own end-to-end delivery from requirements to deployment and support.
• Lead technical design discussions and architecture decisions.
• Refactor to reduce technical debt and improve maintainability and performance.
• Troubleshoot complex production issues with urgency and structured problem-solving.
• Collaborate with Product, QA, and stakeholders to clarify requirements and drive solutions.
• Champion engineering best practices: testing, CI/CD, security, observability, docs.
• Leverage AI developer tools to accelerate development and output.
• Perform other duties as assigned.

Skills

C#/.NET

React

Java/Kotlin

Azure

Databases (SQL Server, PostgreSQL)

RESTful APIs

Microservices

Containers (Docker)

CI/CD

Agile/Scrum

AI-assisted dev tools

Tools

Azure DevOps

GitHub Actions

Job description

Location: Mississauga, ON L4W 5K9, Canada - Hybrid role 3 days onsite a week

Duration: 12 Months

Contract role

Responsibilities

• Design, and deliver highly scalable, fault-tolerant services and features across our microservices platform.
• Take end-to-end technical ownership — from requirements through deployment, monitoring, and production support.
• Lead technical design discussions and contribute meaningfully to architecture decisions, technology choices, and engineering standards.
• Proactively identify and address technical debt — refactor and improve maintainability, performance, and reliability of the codebase.
• Troubleshoot and resolve complex production issues with urgency and structured problem-solving.
• Collaborate with Product, QA, and stakeholders to clarify requirements, surface risks early, and drive solutions to completion with minimal supervision.
• Champion engineering best practices — testing, CI/CD, security, observability, and documentation.
• Leverage AI developer tools (e.g., GitHub Copilot, Claude, Cursor) effectively to accelerate development and improve engineering output.
• Perform other duties as assigned.

Required Qualifications

• 7+ years of professional software engineering experience in a multi-team, production environment.
• .NET Framework / .NET Core / C# – expert-level experience designing and building APIs, microservices, and back-end systems; strong grasp of design patterns and SOLID principles.
• React – Experience building scalable, maintainable front-end applications; strong understanding of state management, performance optimization, and component architecture.
• Good grasp of JVM-based language fundamentals (Java or Kotlin); able to read, reason about, and contribute to codebases beyond the primary stack when the need arises.
• Microsoft Azure – solid working knowledge of Azure services with hands‑on experience across one or more of the following: Azure Container Apps (ACA), App Services (Web Apps), Azure Service Bus, Managed PostgreSQL, Key Vault, Application Gateway, Virtual Networks (VNet) & Subnets, Private Endpoints, and Private DNS Zones; experience deploying and operating production workloads in Azure.
• Databases (SQL Server & PostgreSQL) – expert-level experience with relational database design, complex query optimization, indexing strategies, and performance tuning.
• RESTful API design – proven ability to design, build, version, and secure APIs at scale.
• Strong understanding of microservices architecture, distributed systems, and integration patterns.
• Containers (Docker) – strong hands‑on experience; comfortable with containerized application design, networking, and deployment.
• Experience with CI/CD pipelines (Azure DevOps, GitHub Actions, or equivalent).
• Solid understanding of Agile / Scrum practices and the full software development lifecycle.
• Demonstrated and effective use of AI-assisted development tools as part of everyday engineering workflow.

Nice-to-Have Skills

• Experience with Kubernetes or Azure Container Apps for container orchestration.
• Familiarity with event-driven architecture and message brokers (e.g., Azure Service Bus, RabbitMQ, Kafka).
• Experience with observability tooling — logging, metrics, and distributed tracing (e.g., Application Insights, OpenTelemetry).
• Background in e-commerce, marketplace, or transaction-heavy platform environments.
• Experience with Test-Driven Development (TDD) and pair programming practices.
• Ability to learn and adapt to newer patterns and technologies as the landscape evolves.