Posted 2 days ago
Software Developer
@ Teckhorizon Inc
Toronto, Ontario
SIGNALS
Overview
Teckhorizon Inc is hiring a contract Intermediate Software Developer to design, build, secure, test and maintain scalable web applications and backend services. The work centres on C#, .NET, RESTful APIs, SQL Server and Azure DevOps, performed onsite with technical and functional project teams.
Responsibilities:
- Build and maintain RESTful Web APIs with C# and .NET Core / .NET 6
- Integrate APIs with SQL Server using Entity Framework Core or Dapper
- Implement API authentication, authorization and secure data transfer
- Write clean code, unit and integration tests, and programming specifications
- Troubleshoot issues across the development lifecycle
Requirements summary:
- 3 to 5 years designing large-scale web applications and backend services
- 3 to 5 years with C# and .NET on relational databases
- At least 3 years with ASP.NET Core Web API and microservices
- At least 2 years with Azure DevOps and CI/CD pipelines
- Knowledge of OAuth 2.0, JWT, OpenID Connect and SSL/TLS
Tools & skills
Source and dates
Source type not verified · apify-linkedin
- Employer posting date
- 2026-11-11
- First seen by our source
- 2026-11-14
- Source record updated
- 2026-11-14
These dates describe the source record, not a live verification that the employer is still hiring. Check the original posting.
Job details
| Seniority | Mid level |
| Department | Software development |
| Experience | 3+ years |
| Travel | air: none · ground: none |
| Work setting | Office |
| Position | Mostly sitting |
| Physical demands | physical low · computer high |
| Languages | English |
Summary and details written by AI from the posting; the employer’s posting is the authority.
Teckhorizon Inc
| Field | Value |
|---|---|
| Open jobs on Jobsy | 7 |
Job description
Position Overview
The client is seeking an Intermediate Software Developer to design, develop, secure, test, and maintain scalable web applications and backend services. The successful candidate will have strong hands-on experience with C#, .NET, RESTful APIs, SQL Server, and Azure DevOps, and will work onsite with technical and functional project teams.
Key Responsibilities
Core Development Experience
The client is seeking an Intermediate Software Developer to design, develop, secure, test, and maintain scalable web applications and backend services. The successful candidate will have strong hands-on experience with C#, .NET, RESTful APIs, SQL Server, and Azure DevOps, and will work onsite with technical and functional project teams.
Key Responsibilities
- Translate technical system specifications into working, tested applications and APIs.
- Design, build, and maintain efficient, high-performing RESTful Web APIs using C# and .NET Core / .NET 6 or later.
- Write clean, maintainable code, prepare detailed programming specifications, and perform unit and integration testing.
- Integrate Web APIs with relational databases, particularly Microsoft SQL Server, using Entity Framework Core or Dapper.
- Troubleshoot and resolve technical issues throughout the software development lifecycle, including implementation, conversion, and migration.
- Implement API security standards, including authentication, authorization, and secure data-transfer protocols.
- Collaborate with technical and functional team members to support application design, development, deployment, and maintenance.
Core Development Experience
- 3 5 years of experience designing and developing large-scale, multi-client web applications and backend services.
- 3 5 years of hands-on experience with C# and .NET ( .NET Core / .NET 6 or later), working with relational databases such as SQL Server.
- At least 3 years of dedicated experience designing, developing, securing, and integrating RESTful Web APIs using ASP.NET Core Web API.
- Demonstrated experience with microservices architecture, API authentication protocols such as OAuth 2.0 and JWT, and ORMs such as Entity Framework Core or Dapper.
- At least 2 years of hands-on experience using Azure DevOps for work item management, source-code repositories, and CI/CD deployment pipelines.
- Strong understanding of HTTP/HTTPS, REST standards, API routing, and versioning.
- Knowledge of API security mechanisms, including OAuth 2.0, JWT, OpenID Connect, and SSL/TLS certificates.
- Solid understanding of object-oriented programming, SOLID principles, design patterns, refactoring, and clean-code practices.
- Experience with API testing and documentation tools such as Swagger/OpenAPI, Postman, and xUnit or NUnit.
- Strong knowledge of relational database design, query optimization, indexing, and stored procedures.
- Experience with application design, coding, testing, debugging, documentation, deployment, and troubleshooting.
- Familiarity with Agile/Scrum and structured software development methodologies.
- Ability to work collaboratively with IT professionals and multidisciplinary teams throughout the software development lifecycle.
- Strong analytical, problem-solving, and decision-making skills.
- Excellent written and verbal communication, interpersonal, and collaboration skills.
- Ability to gather and document information from business stakeholders and subject matter experts.
- Ability to develop and present ideas, explain technical concepts, and contribute to effective solutions.
- Ability to work under pressure, adapt to change, and deliver quality work within aggressive timelines.
- A dependable team player with a demonstrated record of meeting deadlines.
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