Sign up to access all features of our service.
  • Job search
  • Favorites
  • Create a CV
    New
  • Salaries
  • Subscriptions

Senior C# Backend Developer

J M Group Inc

We're looking for a Senior C# Backend Developer with strong experience in C# and Visual Studio .

Skills Needed:

  • Demonstrated expert level skill in C and Visual Studio environment
  • Significant professional experience as a backend server-side developer and/or working on standalone desktop applications
  • This role is not suited for candidates with primary experience in web development GUI frontend design or those seeking a full stack position

Responsibilities :

  • Strong abilities in multithreaded programming data structures algorithms SQL robust code design and application optimization
  • Experience with Git source control is highly desirable
  • Proven experience in identifying detecting and refactoring underperforming code to improve application efficiency and performance
  • Familiarity with TDD and BDD concepts and a willingness to apply these methodologies to both new and existing codebases
  • In-depth understanding of theoretical and practical programming concepts demonstrating curiosity about the internal mechanisms of APIs and architectural choices eg understanding how a NET API works internally not just when to use it
  • Prior experience in finance trading or domain specific knowledge of asset classes rates FX fixed income structured products is beneficial but not mandatory
  • Technology Stack Exposure not limited to SQL Server gRPC nHibernate WinForms WCF REST API Swagger etc
  • Must be fluent in English with excellent verbal and written communication skills
  • Ability to work independently while fostering a collaborative environment willing to mentor others and maintain a positive non-arrogant professional
Vacancy posted 1 day ago
Similar jobs that could be interesting for youBased on the Senior C# Backend Developer in Canada vacancy
  •  ...About this team and role: As a Senior Software Engineer on the Ecosystem Services Team , you’ll build and own back-end systems...  ...Firefox outside the regular release cycle. Together with many other backend platforms across the organization, these services help deliver... 
    Senior
    Full time
    Remote work
    Worldwide

    Mozilla

    Canada
    a month ago
  •  ...As a Senior Software Engineer on the Ecosystem Services Team, you’ll build and own back-end systems and the integrations that keep...  ...Firefox outside the regular release cycle. Together with many other backend platforms across the organization, these services help deliver... 
    Senior
    Full time
    Immediate start
    Remote work
    Worldwide
    Home office

    Mozilla

    Canada
    a month ago
  •  ...technical design through production rollout. Design and implement backend architecture changes that support Coder's long-term scalability...  ...systems at a meaningful scale. Curiosity about the latest developer tooling. Our tech stack Backend: Go , Postgres ,... 
    Senior
    Full time

    Coder

    Canada
    27 days ago
  • $166.6k - $208.3k

     ...only meets but anticipates the needs of our customers. Our product engineering group is growing and we’re looking to hire senior backend engineers . We’re a team of pragmatic, product-minded engineers motivated by the desire to create lovable products that rescue... 
    Senior
    Full time

    Mercury

    Canada
    5 days ago
  • As a Senior Software Engineer on the Ecosystem Services Team, you’ll build and own back-end systems and the integrations that keep our services running, help maintain and evolve the cloud infrastructure the application runs on, and play an active role in keeping the service... 
    Senior
    Full time

    Mozilla

    Canada
    a month ago
  • $166.6k - $208.3k

     ...not only meets but anticipates the needs of our customers. Our product engineering group is growing and we’re looking to hire senior full-stack engineers . We’re a team of pragmatic, product-minded engineers motivated by the desire to create lovable products that... 
    Senior
    Full time

    Mercury

    Canada
    6 days ago
  •  ...About the Role We’re looking for a senior-level software engineer who leans backend and can take product problems from first principles through implementation...  ...a reliable, repeatable experimentation platform. Develop near-real-time ingestion and processing capabilities... 
    Senior
    Full time

    Northbeam

    Canada
    23 days ago
  • $75.9k - $141.9k

     ...Requirements: We are looking for 7-15+ years of experience in backend or full-stack development within enterprise environments. We...  ...microservices and APIs using Java, Node.js, and Python. We develop intuitive frontend applications with React or Angular. We... 
    Senior
    Full time

    BMO Financial

    Canada
    more than 2 months ago
  •  ...Experienced .Net Developer for WinForms applications. Six-month assignment with possibility of extension. C# development with SQL Server backend. Requirements: C# expertise .Net MVC knowledge WinForms programming Object-oriented design Open XML knowledge... 
    Contract work

    Arkansas Bureau of Legislative Research

    Canada
    15 hours ago
  • What You'll Do · You will be responsible for owning and delivering quarterly goals for your team, leading engineers on your team through ambiguity to solve open-ended problems, and ensuring that everyone is supported throughout delivery. · You will support your peers and...
    Senior
    Full time

    Affirm

    Canada
    a month ago
  •  ...Job Title: Backend Microservices Engineer Job Location: Mississauga, ON (3 days per week onsite) Job Duration: Full Time...  ...platforms with core enterprise systems. This role focuses on developing APIs and microservices for transaction orchestration, reconciliation... 
    Full time
    3 days per week

    Apptad Inc

    Canada
    2 days ago
  • $90k - $130k

     ...Requirements: We bring at least 2 years of experience in backend engineering, AI automation, or integrating complex systems....  ...experience using SQL databases. We have practical experience developing in live, non-simulated environments and managing multi-step system... 
    Full time

    Outlier AI

    Canada
    more than 2 months ago
  •  ...BeyondTrust is seeking a Software Engineer (Backend) for the team that develops our Password Safe product. The ideal candidate will have a solid background...  ...You’ll Do Develop service-oriented software using C# using .NET Demonstrated experience using agentic AI... 
    Full time
    Remote work

    Beyondtrust

    Canada
    a month ago
  •  ...your team through your writing and tech talks. You will help develop talent on your team by providing feedback and guidance, and...  ...have 8+ years of experience designing, developing and launching backend systems at scale using languages like Python or Kotlin. You... 
    Full time

    Affirm

    Canada
    a month ago
  • $90k - $130k

     ...year Requirements: We bring at least 2 years of experience in backend engineering, AI automation, or complex systems integration....  ...improves agent performance. We work with leading AI teams to develop large language models that can act as proactive, multi-step agents... 
    Senior
    Full time
    Work at office

    Outlier AI

    Canada
    more than 2 months ago
  • $115.2k - $194.4k

     ...platform for DevSecOps. GitLab enables organizations to increase developer productivity, improve operational efficiency, reduce security...  ...or services of GitLab. About the role As an Intermediate Backend Engineer, you will take backend features and improvements from... 
    Full time
    Contract work
    Remote work

    GitLab

    Canada
    7 days ago
  •  ...experiences. We're looking for an engineer who combines strong backend engineering fundamentals with modern machine learning expertise...  ...scalable backend services using Python, Node and .NET. Develop production-ready AI applications powered by Large Language Models... 
    Full time
    Remote work
    Flexible hours

    Seez

    Canada
    a month ago
  •  ...compliance, and unit economics. Provide deep technical mentorship to senior/staff engineers across Payments pods, upleveling system design...  ...‑entry, high‑volume payment systems) ~ Deep expertise in backend programming (e.g., Python , Go, Java) and cloud‑native... 
    Senior
    Full time

    Coinbase

    Canada
    a month ago
  • $75.9k - $141.9k

     ...complex technical concepts to both technical and non-technical audiences. ~ Practical experience utilizing AI-supported coding or developer productivity tools such as Microsoft Copilot or GitHub Copilot in daily development tasks. ~ Ability to critically assess and... 
    Senior
    Full time

    BMO Financial

    Canada
    more than 2 months ago
  •  ...off to human agents when needed. As a Senior Software Engineer, Frontend , you'll...  ...Integrate frontend applications with backend services using REST APIs, WebSockets, and...  ...engineering best practices. Improve developer productivity through testing, CI/CD, observability... 
    Senior
    Full time

    Cresta

    Canada
    a month ago
  •  ...us as we build the next evolution of our backend services to support Life360’s continued global...  ...and efficiency, enabling us to develop smarter solutions that significantly improve...  ...first principle. About the Job As a Senior Software Engineer II on our Ads team, you... 
    Senior
    Full time
    Flexible hours

    Life360

    Canada
    22 days ago
  •  ...setting code review and design standards, and advocating for them beyond your team through your writing and tech talks. You will help develop talent on your team by providing feedback and guidance, and leading by example. What We Look For You have 8+ years of... 
    Senior
    Full time

    Affirm

    Canada
    a month ago
  •  ...About the Role: As a frontend-focused Senior Software Engineer , you will own the design...  .... You'll also work in Go on the backend services and APIs that power those experiences...  ...autonomy, high-leadership position: you'll develop new features at scale, set the standard... 
    Senior
    Full time
    Casual work

    Sardine

    Canada
    24 days ago
  • $200k

     ...We need five years of recent experience developing TIBCO integration solutions, including building...  ...testing tools is a plus. Exposure to C#, ASP.NET, Visual Studio, and JavaScript...  ...XML AI More: We are hiring two Senior TIBCO Developers for a contract role... 
    Senior
    Hourly pay
    Full time
    Contract work

    TEKsystems c/o Allegis Group

    Canada
    more than 2 months ago
  •  ...this role you'll contribute to the frontend development harness, push it hard as a daily user, and champion it across the team. Develop and maintain complex, scalable user interfaces for web applications using React and TypeScript . Partner with your cross functional... 
    Senior
    Full time
    Work at office
    Remote work

    Capital Markets Gateway

    Canada
    21 days ago
  •  ...Information Technology Division is looking for an experienced .Net Developer to work as part of a team developing WinForms based applications...  ...The project involves creating WinForms based applications in a C#.Net environment using both a web portal and a traditional... 
    Senior
    Contract work
    Work at office

    Arkansas Bureau of Legislative Research

    Canada
    15 hours ago
  • $200.7k - $250.9k

     ...experience for everyone. Our Investments Team develops innovative solutions for founders...  ...startups. The Investments Team consists of backend and frontend engineers dedicated to...  ...surpass traditional expectations. As a Senior Software Engineer on the Investments... 
    Senior
    Full time

    Mercury

    Canada
    5 days ago
  •  ...some of the world's largest travel brands. We're looking for a senior full stack engineer to anchor this product, owning the...  ...the stack, including web chat front ends in React/TypeScript , backend services in Scala and Python , and infrastructure on GCP... 
    Senior
    Full time
    Work from home

    Hopper

    Canada
    15 days ago
  •  ...we serve our communities’ most vulnerable seniors through shared intention, pioneering...  ...identify and define business needs that require developed technology solutions. The Senior...  ...maintenance using any programming language like C# , .Net Core , Razor Pages ;... 
    Senior
    Full time

    WelbeHealth

    Canada
    20 days ago
  • $166.6k - $208.3k

     ...our Design System team, and the north star of this role. As a Senior Frontend Engineer on the Design Systems team, you will build...  ...product teams, helping them build better experiences faster. Develop a design system that's as ready for AI as it is for people, applying... 
    Senior
    Full time
    Shift work

    Mercury

    Canada
    2 days ago

Do you want to receive more vacancies?

Subscribe and receive similar vacancies to Senior C# Backend Developer. Be the first to apply!