Talent.com
Back End Developer
Back End DeveloperRobert Half • Mississauga, ON, CA
Back End Developer

Back End Developer

Robert Half • Mississauga, ON, CA
9 hours ago
Job type
  • Permanent
  • Temporary
  • Quick Apply
Job description

We are looking for a Senior Backend Developer to join a growing engineering team focused exclusively on building a new, enterprise-grade product. This is a product-only role (no client delivery or consulting work), where you’ll play a key part in translating architectural vision into robust, production-ready backend services. If you have the below requirements, please apply today!

What You’ll Do

  • Implement backend services under architectural guidance, contributing to foundational platform components
  • Build scalable, cloud-native services following established patterns, standards, and best practices
  • Develop calculation-heavy, deterministic business logic with a strong emphasis on correctness and repeatability
  • Design and optimize data pipelines and processing workflows
  • Maintain a high bar for code quality, testing, performance, and reliability
  • Collaborate closely with the Principal Architect on technical design decisions and implementation strategies
  • Write and maintain comprehensive unit and integration tests to support auditability and long-term maintainability

Key Challenges You’ll Tackle

  • Developing financial-grade, audit-sensitive systems
  • Handling complex data processing and transformation pipelines
  • Building performance-critical, deterministic logic
  • Creating foundational backend services that scale to enterprise-level customers
  • Required Skills & Experience

    Backend Development

  • 3–8+ years of experience in backend software development
  • Strong proficiency in .NET / C# (required)
  • Experience with strongly-typed, compiled languages
  • Frameworks & APIs

  • ASP.NET Core
  • Entity Framework Core
  • Background workers and async processing pipelines
  • RESTful API design and implementation
  • Databases

  • Strong experience with relational databases such as SQL Server / Azure SQL or PostgreSQL
  • Solid understanding of query optimization, indexing, and performance tuning
  • Cloud & Engineering Practices

  • Cloud-native development experience (Azure strongly preferred)
  • Experience building and supporting data pipelines
  • Strong testing discipline (unit, integration)
  • Performance profiling and optimization experience
  • Nice to Have

  • Message queues and asynchronous messaging
  • Docker and containerized workloads
  • CI / CD pipelines
  • Event-driven architectures
  • This job posting is for a current vacancy with our client.
  • Our specialized recruiting professionals apply their expertise and utilize our proprietary AI to find you great job matches faster.
  • backend
  • .net
  • C#
  • microservices
  • testing
  • azure
  • SQL
  • asp.net
  • API
  • Robert Half is the world’s first and largest specialized talent solutions firm that connects highly qualified job seekers to opportunities at great companies. We offer contract, temporary and permanent placement solutions for finance and accounting, technology, marketing and creative, legal, and administrative and customer support roles.

    Robert Half works to put you in the best position to succeed. We provide access to top jobs, competitive compensation and benefits, and free online training. Stay on top of every opportunity - whenever you choose - even on the go. Download the Robert Half app and get 1-tap apply, notifications of AI-matched jobs, and much more.

    This job posting is for a current vacancy with our client.

    Our specialized recruiting professionals apply their expertise and utilize our proprietary AI to find you great job matches faster.

    Questions? Call your local office at 1.888.490.4429. All applicants applying for Canadian job openings must be authorized to work in Canada.

    Only job postings for jobs located in Quebec appear in French.

    © 2025 Robert Half. By clicking “Apply,” you’re agreeing to Robert Half’s Terms of Use and Privacy Notice .

    Create a job alert for this search

    Back End Developer • Mississauga, ON, CA

    Similar jobs
    Hair Stylist - Bradford Smart Centre

    Hair Stylist - Bradford Smart Centre

    Great Clips • Bradford West Gwillimbury, ON, Canada
    Full-time +1
    Join a locally owned Great Clips® salon, the worlds largest salon brand, and be one of the GREATS! Whether youre new to the industry or have years behind the chair…great opportunities await!! < / ...Show more
    Last updated: 6 hours ago • Promoted • New!
    Lead Developer / Architect (Full Stack)

    Lead Developer / Architect (Full Stack)

    PHD Solutions • Burlington, ON, Canada
    Full-time +1
    Lead Developer / Architect (Full Stack) • Burlington, ON • Full-time, permanent role (Monday – Friday, with flex hours), Remote working is a possibility. Salary : $110,000 - $135,000 commensura...Show more
    Last updated: 30+ days ago • Promoted
    Data Architect (Azure)

    Data Architect (Azure)

    goeasy • Mississauga, ON, Canada
    Full-time
    Join one of Canada’s fastest-growing companies and be part of something extraordinary – welcome to .At goeasy, our people and culture are at the heart of everything we do,...Show more
    Last updated: 30+ days ago • Promoted
    ERP Program Data Migration Lead x2 (ID : 52809)

    ERP Program Data Migration Lead x2 (ID : 52809)

    Vaco by Highspring • King City, ON, CA
    Full-time
    Our client is a leading Canadian energy organization with a strong presence across Ontario.They operate critical infrastructure that supports millions of customers and drives economic growth.Our cl...Show more
    Last updated: 7 days ago • Promoted
    Online Jobs - Earn Up to $1,500 a Month

    Online Jobs - Earn Up to $1,500 a Month

    Free Cash by Almedia • Vaughan
    Full-time
    Receive a $5 welcome bonus when you complete your first offer!Make money in your spare time by completing online tasks : . Take paid surveys (5-15 minutes each).Test new mobile games and apps.Share yo...Show more
    Last updated: 30+ days ago • Promoted
    Dotnet Developer

    Dotnet Developer

    freelance.ca • Vaughan, Canada
    Temporary
    Our client is one of the world’s leading Scientific Test and Measurement organizations.As Senior C# Developer, you’d on our client’s next-generation OS platform, focused on designing innovative fea...Show more
    Last updated: 9 days ago • Promoted
    Senior Front-End, Web Applications (Hybrid)

    Senior Front-End, Web Applications (Hybrid)

    Survalent • Brampton, ON, Canada
    Full-time +1
    Senior Front-End, Web Applications Brampton (Hybrid) Survalent is a fast-growing software development company building modern, scalable, and mission-critical web applications for enterprise clients...Show more
    Last updated: 28 days ago • Promoted
    Business Development Manager

    Business Development Manager

    Groupe Morneau • Bolton, ON, Canada
    Full-time
    At Morneau, we’ll go places together and explore new career horizons filled with exciting opportunities.Elaborate a vast knowledge of strategic challenges related to the target clientele and provid...Show more
    Last updated: 7 days ago • Promoted
    Full Stack Engineer

    Full Stack Engineer

    GEI Consultants • Concord, ON, Canada
    Full-time
    The Full Stack Engineer is responsible for front-end development and back-end interconnection of solutions that support AI-powered applications and integrations across GEI.This role builds user-fac...Show more
    Last updated: 22 days ago • Promoted
    C++ Developer

    C++ Developer

    Staffinity Inc • L0G, ON, Canada
    Full-time +1
    We are your trusted bilingual recruiting, short and long-term staffing service provider.Our primary goal has been matching sought-after employers with talented candidates.We are your source to get ...Show more
    Last updated: 7 days ago • Promoted
    Eve looking for a babysitter or nanny in Bolton

    Eve looking for a babysitter or nanny in Bolton

    Sitly • Bolton, CA
    Part-time
    Young farm / working couple with a delightful happy little girl who is just learning to walk and talk.We need an extra loving, attentive care giver to free up Mom to clear up that to-do list and hav...Show more
    Last updated: 6 days ago • Promoted
    Full stack Developer - Hays

    Full stack Developer - Hays

    Hays • mississauga, on, ca
    Full-time
    Extensive experience (8+ years) with Java and a variety of technologies including distributed systems, microservices architecture. Proven track record of working on large and complex software system...Show more
    Last updated: 30+ days ago • Promoted
    AD Marketing, New Product Launches & Life Cycle Management, Oncology

    AD Marketing, New Product Launches & Life Cycle Management, Oncology

    Jazz Pharmaceuticals • Bolton, Ontario, Canada
    Full-time
    If you are a current Jazz employee please apply via the Internal Career site.Jazz Pharmaceuticals is a global biopharma company whose purpose is to innovate to transform the lives of patients and ...Show more
    Last updated: 30+ days ago • Promoted
    Millwright

    Millwright

    Cargill • Bolton, ON, CA
    Full-time
    Week 1 : Monday, Tuesday, Friday, Saturday.Week 2 : Sunday, Wednesday, Thursday.Must hold an Ontario or Inter-Provincial 433A Millwright Certificate. As a Maintenance Millwright at Cargill, you will b...Show more
    Last updated: 30+ days ago • Promoted
    Software Engineer - Android

    Software Engineer - Android

    Hygiena LLC • Mississauga, ON, Canada
    Full-time
    Hygiena provides rapid microbiology diagnostic tests and solutions for mission-critical, time-sensitive processes around the world. Hygiena’s proprietary diagnostic technologies enable custome...Show more
    Last updated: 30+ days ago • Promoted
    Senior Back-end Engineer

    Senior Back-end Engineer

    Prophix • Etobicoke, ON, Canada
    Full-time
    See what you can do with Prophix®.Prophix helps finance teams work with greater flexibility and confidence through Prophix One™, our Financial Performance Platform.We bring planning, repo...Show more
    Last updated: 30+ days ago • Promoted
    FRONT-END DEVELOPER

    FRONT-END DEVELOPER

    Finlink Group • Maple, ON, Canada
    Full-time
    Bring ideas to life with code that feels as smooth as it looks.We’re searching for a talented Front-End Developer who’s passionate about building sleek, scalable, and intuitive web appl...Show more
    Last updated: 30+ days ago • Promoted
    Product Owner

    Product Owner

    mobileLIVE • Brampton, ON, Canada
    Full-time
    LIVE is one of the fastest-growing IT Services and Consulting companies in Canada and serves some of the most iconic brands, including Google, Loblaws, Staples, Telus, Bell, Rogers, CIBC, BMO...Show more
    Last updated: 30+ days ago • Promoted