GraceMark Solutions

C#.Net Fullstack engineer ( 50% front end and 50% backend)

GraceMark Solutions  •  Toronto, CA (Onsite)  •  3 months ago
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Job Description

CANADA CANDIDATES ONLY

Duration: Long term contract

No. of Positions: 3

Key Areas: C#.Net, C# Backend, Azure, Next.JS, React.JS, Node.JS

We're looking for an engineer with hands‑on, production experience integrating LLM APIs (OpenAI, Azure OpenAI, Anthropic). You should be able to design end‑to‑end AI pipelines, including:

  • Streaming responses
  • Advanced prompt engineering
  • Output evaluation and hallucination mitigation
  • Human‑in‑the‑loop workflows
  • Document‑processing and retrieval‑augmented pipelines

Daily use of AI‑assisted development tools (Copilot, Claude Code, Cursor) is expected.

NET Backend Development

Strong experience building backend services in NET (C#), including:

  • API and microservice design
  • Async processing and streaming endpoints
  • Integrating .NET services with LLM providers
  • Clean architecture and modern .NET patterns

Experience pairing Next.js frontends with .NET backends is a plus.

Architectural Strength

Ability to design and explain system‑level architecture, trade‑offs, and long‑term implications. Experience building distributed, scalable systems is important.

Event‑Driven / Messaging Systems

Practical experience with event‑driven workflows using Azure Service Bus, RabbitMQ, or similar. Familiarity with asynchronous processing, retries, and distributed coordination.

Cosmos DB / NoSQL

Comfort designing document‑oriented data models, including partitioning, indexing, and performance tuning in Cosmos DB or equivalent NoSQL stores.

Next.js (App Router)

Hands‑on experience with modern Next.js features:

  • App Router
  • Server Components
  • Server Actions
  • Streaming UI patterns
GraceMark Solutions

About GraceMark Solutions

Gracemark is a minority-owned staffing, recruitment, and global payroll firm. We provide professional contractors worldwide, temporary staffing, international payroll solutions, and recruitment services across the US, Canada, Latam, Europe, Africa, and Asia. We work with expanding brands and MSP/VMS providers to support their local and international projects in 145 countries. We aim to produce agile and pragmatic results to become a valuable solutions provider for our clients and partners. For over a decade, many of the world's most respected companies have turned to our global workforce solutions to gain speed to market, improve compliance and supercharge their business strategies.

Contact us at corpmark@gracemarksolutions.com

Industry
HR & Recruiting
Company Size
51-200 employees
Headquarters
Pompano Beach, Florida
Year Founded
2012
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