Freelance Dot Net Backend Developer Jobs in Toronto, ON

We are looking for a highly skilled Senior .NET Backend Developer to join our backend team. In this role, you will be responsible for designing, developing, and maintaining robust and scalable backend systems using .NET technologies. The ideal candidate has a deep understanding of software architecture, clean coding practices, and experience building high-performance APIs and event-driven services.

Key Responsibilities

• Design, develop, and maintain backend services using .NET and C#
• Apply Clean Architecture principles to ensure maintainable and scalable codebases
• Implement and consume RESTful APIs
• Work with Entity Framework (EF) for data persistence and complex data modeling
• Design and build event-driven systems using messaging technologies like RabbitMQ
• Apply strong software architecture principles to guide system design and service interactions
• Write unit tests and contribute to overall test automation practices
• Integrate and manage distributed caching mechanisms (e.g., Redis, NCache) to improve performance
• Develop efficient SQL queries and work closely with SQL Server
• Collaborate with cross-functional teams, including frontend, DevOps, and QA
• Participate in code reviews, architecture discussions, and mentoring junior developers

Required Skills and Qualifications

• 5+ years of experience in backend development using .NET / .NET Core
• Strong experience with Entity Framework (EF)
• Solid understanding of event-driven architecture and experience with RabbitMQ (or similar)
• Hands-on experience applying Clean Architecture and SOLID principles
• Strong grasp of general software architecture concepts (e.g., layered architecture, DDD)
• Proficiency in unit testing frameworks (e.g., xUnit, NUnit, Moq)
• Familiarity with distributed caching systems such as Redis or NCache
• Experience building and consuming RESTful APIs
• Strong skills in SQL Server development and optimization
• Experience working with version control systems like Git

Nice to Have / Preferred

• Experience with Elasticsearch and integrating it into .NET applications
• Experience with microservices architecture
• Familiarity with CI/CD pipelines and DevOps practices
• Knowledge of containerization tools like Docker
• Experience with cloud platforms (e.g., Azure)

What We Offer

• Competitive salary based on your level of experience.
• A benefits package that includes an extensive health insurance package, as well annual vacation, sick and personal days.
• A remote and hybrid work environment and flexible work arrangements to promote work-life balance.
• A collaborative and supportive work culture.
• Opportunities for professional growth and development.
  

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Description du poste

Nousrecherchons un(e)Developpeur(euse) BackendSenior .NEThautement qualifie(e) pour rejoindre notreequipe backend. Dansce role, vousserez responsable dela conception, dudeveloppement et dela maintenance desystemes backend robustesetevolutifs utilisant lestechnologies .NET. Lecandidat ideal possedeune comprehension approfondiede l'architecture logicielle, des pratiques dedeveloppement de codepropre et del'experience dans lacreation d'API hauteperformance et deservices orientes evenements.

Responsabilites principales

• Concevoir, developper etmaintenir des servicesbackend utilisant .NETet C#.
• Appliquer les principesdeClean Architectureafin de garantirdes bases decode maintenables etevolutives.
• Implementer et utiliserdes API RESTful.
• Travailler avecEntity Framework (EF)pour la persistancedes donnees etla modelisation dedonnees complexes.
• Concevoir et developperdes systemes orientesevenements utilisant destechnologiesde messagerie tellesqueRabbitMQ.
• Appliquer de solidesprincipes d'architecturelogicielle pour guiderla conception dessystemes et lesinteractions entre lesservices.
• Ecrire des testsunitaires et contribueraux pratiques globalesd'automatisationdes tests.
• Integrer et gererdes mecanismes demise en cachedistribuee (par exempleRedis, NCache) afin d'ameliorer lesperformances.
• Developper des requetesSQL efficaces ettravailleren collaboration avecSQL Server.
• Collaborer avec desequipes interfonctionnelles, notamment les equipesfrontend, DevOps etassurance qualite (QA).
• Participer aux revisionsde code, auxdiscussions d'architectureet au mentoratdes developpeurs juniors.

Competences et qualificationsrequises

• Plus de5 ans d'experienceen developpement backendutilisant.NET / .NET Core.
• Solide experience avecEntity Framework (EF).
• Bonne comprehension del'architecture orienteeevenements et experienceavecRabbitMQ(ou une technologiesimilaire).
• Experience pratique dansl'application deClean Architectureet des principesSOLID.
• Bonne maitrise desconcepts generaux d'architecturelogicielle (par exemplearchitecture en couches,DDD).
• Maitrise des frameworksde tests unitaires(par exemplexUnit, NUnit, Moq).
• Familiarite avec lessystemes de miseen cache distribueetels queRedisouNCache.
• Experience dansla creation etl'utilisation d'API RESTful.
• Solides competences endeveloppement et optimisationSQL Server.
• Experience avec lessystemes de controlede version telsqueGit.

Atouts supplementaires / Preferences

• Experience avecElasticsearchet son integrationdans des applications.NET.
• Experience avec unearchitecture basee surlesmicroservices.
• Familiarite avec lespipelinesCI/CDet les pratiquesDevOps.
• Connaissance des outilsde conteneurisation telsqueDocker.
• Experience avec lesplateformes cloud (parexempleAzure).

Ce que nousoffrons

• Salaire competitif basesur votre niveaud'experience.
• Ensemble complet d'avantagessociaux comprenant uneassurance sante etendueainsi que desvacances annuelles, desconges de maladieet desjournees personnelles.
• Environnement de travailhybride a distanceet arrangements detravail flexibles afinde favoriser unbon equilibre entrevie professionnelle etvie personnelle.
• Culture de travailcollaborative et axeesur le soutien.
• Possibilites de croissance et de developpement professionnel.