Senior C# .NET Developer

6 days ago

Ottawa, Ontario, Canada Insight Global Full time $95,000 - $123,000 per year

We are seeking an experienced
Senior C#/.NET Developer
with
7+ years of professional software development experience
and a strong background in
cloud-native solutions
,
MQTT-based systems
, and
containerized deployments
. The ideal candidate will have hands-on experience building scalable, high-performance microservices and distributed applications using
C#/.NET
, deployed on
AWS
, and orchestrated with
Docker
and
Kubernetes
.

Key Responsibilities

  • Design, develop, and maintain
    C#/.NET applications
    and microservices.
  • Build scalable, event-driven architectures using
    MQTT messaging protocols
    .
  • Develop cloud-native services and infrastructure on
    AWS
    , leveraging services such as EC2, ECS/EKS, Lambda, S3, RDS, CloudWatch, and IoT Core (preferred).
  • Create and maintain
    Docker container images
    and manage application deployments in
    Kubernetes
    environments.
  • Participate in architectural discussions to design robust, maintainable, and secure systems.
  • Implement CI/CD pipelines using tools such as GitHub Actions, AWS CodePipeline, or Jenkins.
  • Collaborate closely with product managers, DevOps engineers, and QA teams to deliver high-quality, production-ready solutions.
  • Monitor, troubleshoot, and optimize application performance in cloud environments.
  • Follow best practices for coding, testing, automation, and documentation.

Required Qualifications

  • 7+ years
    of hands-on experience with
    C#/.NET (Core or later)
    .
  • Strong experience integrating and developing messaging solutions using
    MQTT
    .
  • Proven experience with
    AWS Cloud
    , including building and deploying distributed systems.
  • Solid understanding of
    Docker
    , containerization concepts, and writing production-ready Dockerfiles.
  • Experience deploying and managing workloads in
    Kubernetes
    (EKS preferred), including Helm charts or similar tools.
  • Strong knowledge of RESTful APIs, microservice architectures, and distributed systems.
  • Proficiency with SQL and NoSQL databases.
  • Experience with Git, CI/CD, automated testing frameworks, and modern DevOps practices.
  • Strong problem-solving skills and ability to work in a fast-paced, agile environment.

Preferred Qualifications

  • Experience with
    AWS IoT
    ,
    MQTT brokers
    , or industrial IoT systems.
  • Familiarity with
    Terraform
    ,
    CloudFormation
    , or other IaC tools.
  • Knowledge of event streaming systems such as Kafka or AWS SNS/SQS.
  • Exposure to modern frontend technologies (Angular, React, or Blazor) is a bonus.
  • Experience with application security, identity management, and OAuth/OpenID Connect.

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