Full-Stack Developer
- Spain
- Contract
- ICT
Our client, an international IT service provider, is seeking a Full-Stack Developer to join them as a contractor, with the option to work fully remote in line with CET or on site in Spain. Starting at an initial 6 month contract, multiple extensions are expected and there is great, long-term potential.
Responsibilities:
- Implement an AI workflow to automate business processes by interacting with popular large language model (LLM) models, such as OpenAI, Mistral, and leveraging their tools' calling and structured output capabilities.
- Interact with relational databases, such as Microsoft SQL, and utilise Object Relational Mapping (ORM) libraries and REST APIs, written in .NET.
- Monitor the development progress.
- Ensure that the code developed adheres to organization’s coding standards.
- Ensure the project deliverables meet business objectives.
- Requires extensive experience in Web application development
- Expertise using modern TypeScript and JavaScript, and have experience with React.js and, ideally, Next.js.
- Experience with .NET Technologies
- Experience or familiar with Artificial Intelligence development tools (such as Cursor, Windsurf, Visual Studio Copilot) and interaction with LLM Models API with structured output and tool Calling.
- Strong experience with various front-end web application development frameworks
- Broad knowledge of SQL Databases and back-end integrations.
#LI-AM1
QCS Staffing have been great at fully getting to know our business and understanding what we are looking for, not just in the vacancy but also in the type of person that would suit the business. Their knowledge of the technology industry is fantastic and they are more than happy to reject a vacancy if they feel it is not their specialism to ensure that we don’t waste anyone’s time. It has enabled us to recruit some fantastic employees and continue to grow the relationship between our business and QCS Staffing.
We found QCS a refreshing change from the norm, offering invaluable support throughout any hiring process. Most importantly a strong network within the data centre world meant they were able to find us some top talent! Would thoroughly recommend QCS to anyone looking to change and simplify the way they recruit talent!
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