Python Fullstack Developer

Company:  Mphasis
Location: London
Closing Date: 07/07/2026
Hours: Full Time
Type: Permanent

Job Description

We are seeking a highly skilled Senior GenAI Engineer/Python Fullstack Developer to join our team and lead the development of next-generation AI-powered solutions. This role is ideal for a hands-on engineer with strong expertise in Generative AI, Large Language Models (LLMs), Knowledge Graphs, MLOps, and Full-Stack Development.

You will play a key role in designing, building, and scaling enterprise-grade AI applications that drive business innovation and deliver real-world impact.


Key Responsibilities

AI & Application Development

  • Design, develop, and deploy scalable AI-powered full-stack applications using Python and modern frontend technologies.
  • Build and integrate Generative AI solutions leveraging frameworks such as LangChain, LangGraph, LangSmith, LlamaIndex, and RAGAS.
  • Develop robust backend services and APIs using FastAPI, Flask, and microservices architecture.
  • Build and maintain Human-in-the-Loop (HITL) systems to enable continuous model improvement through user feedback and validation.

Knowledge Graph & Advanced AI Solutions

  • Design, implement, and maintain enterprise Knowledge Graphs using graph databases such as Neo4j, Amazon Neptune, and GraphDB.
  • Work with semantic web technologies including RDF, OWL, and SPARQL.
  • Develop graph-based AI solutions using techniques such as:
  • Graph Neural Networks (GNNs)
  • Link Prediction
  • Node Embeddings
  • Graph Analytics

MLOps & AI Operations

  • Implement MLOps best practices for AI model deployment, monitoring, governance, and continuous integration/continuous deployment (CI/CD).
  • Ensure scalability, reliability, security, and performance of AI applications.
  • Develop testing frameworks, documentation, and operational support processes.

Collaboration & Innovation

  • Collaborate closely with Data Scientists, ML Engineers, Architects, Product Managers, and Engineering teams.
  • Drive innovation by evaluating and adopting emerging AI/ML technologies and frameworks.
  • Contribute to technical discussions, architecture decisions, and best practices.


Required Skills & Qualifications

Technical Skills

  • Strong proficiency in Python with experience in full-stack application development.
  • Hands-on experience building and deploying AI/ML applications using Large Language Models (LLMs).
  • Experience with:
  • LangChain
  • LangGraph
  • LangSmith
  • LlamaIndex
  • RAGAS
  • Strong understanding of Human-in-the-Loop AI systems.
  • Experience with SQL and NoSQL databases.
  • Experience working with cloud platforms:
  • AWS
  • Azure
  • Google Cloud Platform (GCP)
  • Knowledge of cloud-based AI/ML services and APIs.
  • Experience with:
  • RESTful APIs
  • Microservices Architecture
  • Docker
  • Kubernetes
  • Frontend development experience using:
  • ReactJS
  • Angular
  • Vue.js

Process & Methodology

  • Strong understanding of Software Development Life Cycle (SDLC).
  • Experience working in Agile and Scrum environments.
  • Ability to gather requirements and create technical specifications.


Preferred Qualifications

  • Master's degree in Computer Science, Information Technology, Artificial Intelligence, or a related field.
  • Research contributions in AI/ML, including publications, patents, or conference presentations.
  • Experience with advanced graph-based machine learning techniques.


Certifications (Preferred)

✔ AWS Cloud Certification

✔ AWS AI/ML Certification


What We're Looking For

  • Excellent problem-solving and analytical skills.
  • Strong communication and stakeholder management abilities.
  • Ability to work independently and collaboratively in a fast-paced environment.
  • Passion for innovation and emerging AI technologies.
  • Continuous learner with a growth mindset.
  • Positive attitude and strong ownership mindset.


Interested?

If you're passionate about building cutting-edge Generative AI solutions and want to work on transformative enterprise AI initiatives, we'd love to hear from you.

📩 Apply now or reach out directly to learn more.

  • #Hiring #GenAI #ArtificialIntelligence #LLM #MachineLearning #LangChain #LangGraph #KnowledgeGraphs #MLOps #PythonDeveloper #AIEngineer #AWS #FastAPI #Neo4j #TechJobs #CareerOpportunity
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