Senior .NET API Developer - REST, Swagger, Security
Rubicon Path
A leading software development company in Toronto is seeking a Senior Software Developer specializing in API development. The ideal candidate will have at least 4 years of experience in C# and 3 years in .NET Core or .NET 5+. Responsibilities include translating technical specifications into applications and collaborating across teams. This role requires strong analytical and problem-solving skills and a proven ability to deliver results under tight deadlines. #J-18808-Ljbffr
- We are seeking an experienced Senior Software Developer - API to lead the technical design, development, security, and integration of enterprise-scale RESTful web services and API platforms. In this role, you will translate technical system specifications into robust, production...SeniorLong term contractContract workManual labor
$118k - $152k per year
...The Role Capco is seeking a Senior Software Engineer with strong expertise in C#, .NET, ASP.NET Core, and API development to join our Technology & Engineering practice in Toronto. In this role, you will design, develop, modernize, and maintain enterprise applications and...SeniorFull timeInternshipImmediate start- ...revolutionizing payment solution for commercial clients. We are seeking a Senior API Developer to build the robust and scalable APIs. As a key player, you'll... ...: Design, develop, and maintain scalable, high-performance REST and/or GraphQL APIs Collaborate with product managers,...SeniorInternshipFlexible hours
$55.5k - $120k per year
...specifications, writing Java code +APIs and managing the preparation... ...design, provides advice on security requirements and debugs business... ...and programming languages to develop high quality technology... ...) Ansible for automation RESTful API development SQL and relational...SuggestedContract workPart timeWork at officeRelocation2 days per week$105.09k - $186.5k per year
...organization, apply now. We are currently seeking a OnBase API Developer - Remote Canada Position We are looking for an... ...integrations between OnBase and other enterprise systems using REST/SOAP APIs, .NET/C#, SQL, and workflow/document management solutions....SuggestedTemporary workWork at officeRemote workFlexible hours$86.9 - $104.28 per hour
...RQ11442 - Software Developer - API - Senior Duration: 1 Year (254 Business Days) + 1 Possible Extension Location: 5 days onsite at 222... ...with Node.js and Next.js ~5+ Experience building and testing RESTful APIs ~2-3+ years of Multi-agent (Agentic AI), LLMops, MCP,...Senior$102.2k - $125k per year
...not equal boring. Not at TD, anyway. TD Securities is the wholesale banking arm of TD Bank Financial... ...in designing and integrating with REST APIs, gRPC endpoints. ~ Experience working with... ...career goals. Here at TD, we hire and develop the best. Training & Onboarding We will...SeniorFull timeWork from home- We are seeking a highly accomplished Senior Software Developer for an enterprise-level contract opportunity based in Toronto. In... ...alongside robust backend and web services leveraging .NET, C#, JEE, Microsoft SQL Server, and REST/SOAP web services. This position demands a seasoned...SeniorLong term contractContract work
$95k - $145k per year
...Permanent CGI is seeking an experienced Senior Full Stack Developer to join our growing Software... ...engineering fundamentals to deliver scalable, secure, and resilient applications across a variety... ...frameworks (such as Java Spring Boot, .NET 8 / ASP.NET Core, Node.js/NestJS,...SeniorPermanent employmentFull time$102.2k - $125k per year
...This Role We are looking for a Senior Engineer to join the... ...range of tasks associated with developing application and systems solutions... ...-wide projects built on the .NET stack. Teamwork and cooperation... ...vulnerabilities (and follow standard security practices). Proactively put...SeniorFull timeManual laborWork at officeWork from home- ...integration, and deployment of the developed changes across the environment... ...utilize technologies such as .NET, C#, JEE, Microsoft SQL Server,... ...and protocols (SOAP and REST) Skill Set Requirements:... ...ex, Azure SQL, Azure Functions, API Management, Streaming Analytics...SeniorFull timeContract work
$102.2k - $125k per year
...Inclusive Technology Team TD Securities offers a wide range of capital... .... We do this by designing, developing, and enhancing java based microservices... ...various capacity (junior to senior developer) Actively... ...of Microservices and Composite API architectures. Experience in...SeniorLong term contractWork from home$81.6k - $115.2k per year
...Job Description: CUSTOMER Develop new solutions as required for... ...applications, system infrastructure, security, integration, operability and... ...Foundational experience with .NET 8 or later, Python, or a... ...HTML5, and CSS Awareness of REST APIs, web services, and common...InternshipWork from homeShift work$45 per hour
Job Responsibility: : Requirements Management - ability to elicit, document and manage requirements from stakeholders. Agile Methodologies - Knowledge of agile frameworks and methodologies for project delivery. Process Mapping and Analysis - Understanding and mapping...Hourly payFull timeFixed term contract$104k - $215k per year
...reach across disciplines and borders to develop and lead global initiatives. We... ...& Sustainability team is seeking a Senior Manager to activate Deloitte’s Net-Zero by 2040 ambition across the global... ...Lead Tier 1 supplier engagement to secure measurable outcomes, including in-setting...SeniorPermanent employmentRemote workFlexible hours$70k - $150k per year
...looking for a passionate and innovative Senior GenAI Software Developer to join our growing team and help... ...cases and teams. Develop high-quality, secure, and maintainable code while adhering... ...solution architecture, system integrations, APIs, microservices, and cloud-based...SeniorContract workPart time- ...We are seeking an experienced Senior Software Developer to join our team in designing, building, testing, and deploying secure, high-performing cloud and web applications. In this role... ...delivery environment. Utilizing Microsoft .NET, C#, JavaScript, custom Web APIs, and...SeniorContract work
$94k - $127k per year
...API Management Platform team builds end to end API Management Platform for Restful, GraphQL and Async APIs. Platform provides following key... ...APIs ~3rd Party Application Developers to discover their API Usage... ...requirements, use cases and develop prototypes, or proof of...Full timeInternshipWork at office3 days per week$70 per hour
Role: Full Stack .NET Developer Rates: Up to $70.00 p/h INC. Location: Remote, GTA Based Structure: 6 month contract - We... ...applications using C#, ASP.NET Core and Entity Framework. Build secure, scalable RESTful APIs and services supporting healthcare interoperability...Full timeContract workRemote work- ...Clients achieve lifetime financial security and live healthier lives. Our... ...other security platforms, the team develops solutions using Splunk SOAR, Python, APIs, and related technologies. Our automation... ...of new systems. Act as a senior technical escalation point for the...SeniorRemplacementWork at officeWork from home
- We are seeking an experienced Senior Software Developer to lead the technical design, development, testing... ...web applications using Microsoft .NET technologies. In this role, you will be... ...requirements into structured, scalable, and secure software solutions. Leveraging hands-on...SeniorContract workWork at office
- We are seeking a highly accomplished Senior Software Developer - Full Stack for an enterprise-level contract opportunity... ...-lifecycle engineering experience, robust API and database optimization expertise, and a dedication to delivering secure, high-performance enterprise solutions....SeniorContract work
$65.5k - $99k per year
.... As part of the EY E-publishing technology team, the Back-End .Net Developer will help build and support the platforms that make this content... ...and SQL programming Other beneficial skills ASP.NET Web API, ASP.NET Web Forms, ASP.NET Core HTML, CSS, JavaScript Python...Shift workWeekend work$84.46k - $127k per year
...Senior Application Developer Join Livingston and grow your career in the constantly changing world... ...development projects and ensure consistency in security, performance, manageability, and... ...language(s) such as COBOL, VB.NET, JAVA, UML, Microsoft .Net, C#, SQL ,...SeniorLong term contractFull timeWork at officeFlexible hours- We are seeking a versatile Senior Software Developer to support core healthcare application enhancements,... ...building web applications using Microsoft .NET MVC in Azure alongside Python web... ...diverse cloud ecosystems, you will construct REST and GraphQL APIs, manage relational databases...SeniorContract workRemote work
$100k - $120k per year
...We're looking for an experienced developer to join TripArc as a Senior Software Developer. You'll work on a... ...help us modernize it: moving legacy .NET systems onto Azure-hosted microservices... ...~ Experience building and consuming RESTful APIs, and working with Entity Framework...SeniorCasual workInternshipWork at officeLocal areaShift work2 days per week$126.8k - $164.1k per year
...grow in all of it. About TD Securities – Global Equity Derivatives... ...Role We are looking for a Senior Engineer to join the Equity Derivatives... ...of tasks associated with developing application and systems... ...Develop and maintain backend APIs and services using C#. Work...SeniorLong term contractWork at officeWork from home$86.9 - $104.28 per hour
...RQ10573 - Software Developer - API - Senior ONSITE - Toronto ( 21 College Street) 11+ months Contract (250 Business Days)+ 6 Months Possible... ...Extensive experience in designing, building, and consuming REST APIs, including API documentation and testing, as well as in-...SeniorContract work- We are seeking a highly accomplished Senior Software Developer for an enterprise-level contract opportunity... ...), WebSphere Message Broker, IBM MQ, .NET technologies, and PowerShell automation... ...can deliver reliable messaging flows, secure APIs, and high-performance system...SeniorContract work
$95k - $145k per year
...Join Canada's largest IT Company as a Senior Java Developer, in our Financial Services Sector in Toronto... ..., performant, reliable, scalable, and secure. Provide technical coordination for... .../ Spring Boot / Spring Security RESTful APIs, OAuth Microservice architecture...SeniorFull timeWork at officeLocal areaRemote work
Do you want to receive more vacancies?
Subscribe and receive similar vacancies to Senior .NET API Developer - REST, Swagger, Security. Be the first to apply!
- junior software developer .net Toronto, ON
- full stack .net developer Toronto, ON
- developpeur net Toronto, ON
- c#.net software developer Toronto, ON
- .net developer Toronto, ON
- asp.net developer Toronto, ON
- microsoft .net developer Toronto, ON
- net developer visa sponsorship Toronto, ON
- net developer contract Toronto, ON
- net developer intern Toronto, ON
