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Full Stack Developer

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Barclays

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Location:
United Kingdom , London

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Category:
IT - Software Development

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Contract Type:
Not provided

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Salary:

Not provided
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Job Description:

We are seeking a Full Stack Developer to join our Cross Markets team. In this role, you will ensure the development and delivery of high-quality software solutions using programming languages, frameworks and tools while collaborating with peers.

Job Responsibility:

  • Development and delivery of high-quality software solutions by using industry aligned programming languages, frameworks, and tools
  • Ensuring that code is scalable, maintainable, and optimized for performance
  • Cross-functional collaboration with product managers, designers, and other engineers to define software requirements, devise solution strategies, and ensure seamless integration and alignment with business objectives
  • Collaboration with peers, participate in code reviews, and promote a culture of code quality and knowledge sharing
  • Stay informed of industry technology trends and innovations and actively contribute to the organization's technology communities to foster a culture of technical excellence and growth
  • Adherence to secure coding practices to mitigate vulnerabilities, protect sensitive data, and ensure secure software solutions
  • Implementation of effective unit testing practices to ensure proper code design, readability, and reliability

Requirements:

  • Experience in building AI/ML software
  • Strong expertise in machine learning, neural network algorithms and generative AI applications
  • Proficient in programming languages like Python, and libraries such as TensorFlow, PyTorch, NumPy, LangChain, FastApi and LangGraph
  • Experience with RAG applications, server deployment, cloud computing environments, and API development
  • Good understanding of software engineering best practices

Nice to have:

  • Strong Python programming skills, with practical experience writing clean, production-ready code
  • Solid foundation with LLMs, including prompt engineering, fine-tuning, or retrieval-augmented generation (RAG)
  • Experience using structured prompt-engineering and evaluation tools (e.g., LangSmith, PromptLayer)
  • Familiarity with data science libraries and pipelines (e.g., pandas, spaCy)
  • Proficiency in working with SQL Server or other relational databases
  • Experience with Python web frameworks (e.g., FastAPI, Django) and RESTful APIs
What we offer:
  • Competitive holiday allowance
  • Life assurance
  • Private medical care
  • Pension contribution

Additional Information:

Job Posted:
May 04, 2026

Employment Type:
Fulltime
Work Type:
On-site work
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