25 of 25 LangChain Jobs in the South East

Full Stack Engineer

Hiring Organisation
Response Informatics
Location
South East London, London, United Kingdom
Employment Type
Contract
solutions using OpenAI, Azure OpenAI, Anthropic, Gemini, Llama, Mistral, HuggingFace, and emerging AI platforms. Hands-on experience with AI orchestration and agent frameworks including LangChain, LangGraph, Semantic Kernel, LlamaIndex, CrewAI, and AutoGen. Strong knowledge of Prompt Engineering, RAG, Vector Databases (Pinecone, Weaviate, Chroma, FAISS, Azure AI Search), Model Fine-Tuning ...

Lead AI Engineer

Hiring Organisation
Hackajob Ltd
Location
Crawley, West Sussex, South East, United Kingdom
Employment Type
Permanent, Work From Home
technologies. Requirements Experience AI Orchestration & Development: Expert-level experience building complex LLM-powered systems and multi-agent workflows using frameworks like LangGraph, LangChain, AutoGen, or ADK. Artificial Intelligence & Machine Learning: Deep practical understanding of machine learning algorithms, natural language processing (NLP) techniques, and the optimization of large language models ...

Dev Ops Lead – Virtual Assistant and Automation

Location
Sunbury-on-Thames, England, United Kingdom
models into real-world systems Experience with LLMs, RAG, vector search, conversational AI, or unstructured data pipelines Familiarity with AI tooling/frameworks (e.g. LangChain, LlamaIndex, Haystack, Hugging Face, CrewAI) Experience leading SaaS/cloud-based HR or enterprise platforms Skilled at using data and analytics to identify outcomes ...

Principal Data Scientist - AI, MLOps & GenAI Lead

Hiring Organisation
Hackajob Ltd
Location
Crawley, West Sussex, South East, United Kingdom
Employment Type
Permanent, Work From Home
technologies. Requirements Experience AI Orchestration & Development: Expert-level experience building complex LLM-powered systems and multi-agent workflows using frameworks like LangGraph, LangChain, AutoGen, or ADK. Artificial Intelligence & Machine Learning: Deep practical understanding of machine learning algorithms, natural language processing (NLP) techniques, and the optimization of large language models ...

Lead Data Scientist - AI

Location
Crawley, England, United Kingdom
technologies. Requirements Experience AI Orchestration & Development Expert-level experience building complex LLM-powered systems and multi-agent workflows using frameworks like LangGraph, LangChain, AutoGen, or ADK. Artificial Intelligence & Machine Learning Deep practical understanding of machine learning algorithms, natural language processing (NLP) techniques, and the optimization of large language models ...

Senior AI Consultant - Agentic AI & Generative AI

Location
Brighton, England, United Kingdom
architecture, TDD and code quality tooling. Desirable: RAG pipelines, MCP, LLM integration (OpenAI, Gemini, Hugging Face models), LangSmith, TruLens, and agentic frameworks such as LangChain, CrewAI, Autogen, OpenAI Agents and Google ADK. You won’t need every technology on this list. A strong engineering foundation, a good cross-section ...

Senior AI Engineer (BioTech/Pharma)

Location
Oxford, England, United Kingdom
Senior Python engineer with strong production software engineering experience. Commercial experience building LLM, agentic AI or multi-agent systems. Hands‐on experience with LangGraph, LangChain, Haystack or similar frameworks. Proven ability to deploy AI/ML systems into production environments. Strong knowledge of inference, latency, performance, data pipelines, memory ...

Artificial Intelligence Engineer

Location
Wokingham, England, United Kingdom
deploying LLM-based applications, Generative AI solutions, and Agentic AI systems. Experience working with multi-agent architectures and AI orchestration frameworks such as LangChain, Semantic Kernel, or AutoGen. Hands-on experience with Model Context Protocol (MCP) implementations. Strong understanding of vector databases and technologies such as Pinecone, Weaviate, FAISS ...

AI Engineer

Hiring Organisation
Halian Technology Limited
Location
Wokingham, Berkshire, South East, United Kingdom
Employment Type
Permanent
deploying LLM-based applications, Generative AI solutions, and Agentic AI systems. Experience working with multi-agent architectures and AI orchestration frameworks such as LangChain, Semantic Kernel, or AutoGen. Hands-on experience with Model Context Protocol (MCP) implementations. Strong understanding of vector databases and technologies such as Pinecone, Weaviate, FAISS ...

Automation & Platform Engineer

Location
Abingdon, England, United Kingdom
related certifications. TM Forum Open API certification. Nice-to-Have Qualifications Experience with Google Vertex AI, Gemini APIs, BigQuery, or similar platforms. Experience with LangChain, LangGraph, MCP, or agentic AI execution frameworks. Experience with ServiceNow, Netcracker, Amdocs, Ericsson, Nokia, Cisco NSO, Juniper Paragon, or similar orchestration platforms. Experience building secure ...

AI/ML Security Architect

Location
Reading, England, United Kingdom
genuine AI/LLM security experience. Exposure to technologies such as GCP/Vertex AI/Gemini, AWS Bedrock, Azure OpenAI, Anthropic Claude or LangChain/LangGraph would be particularly relevant. This is a cutting-edge opportunity which will shape how AI is securely adopted across a large-scale global ...

Python Developer

Location
Reading, England, United Kingdom
automated testing with pytest Experience supporting and improving large, established production codebases, with a strong understanding of secure software development Experience with LangChain, RAG, vector databases, Azure, Entra ID, OAuth/OIDC, Redis, Terraform, Helm, Prometheus, Grafana or OpenTelemetry would be valuable but is not essential. Current SC clearance ...

Senior Data Scientist - LeapSpace

Location
Slough, England, United Kingdom
Evaluation methodologies for ML/IR/GenAI Advanced programming skills in Python Experience with modern ML/NLP frameworks (e.g., PyTorch, Hugging Face, LangChain, LangGraph, Haystack) Experience working with Databricks or similar distributed data/ML platforms Strong understanding of experimentation design and statistical analysis Preferred qualifications Batchelor ...

AI/ML Researcher

Hiring Organisation
Hackajob Ltd
Location
Chelmsford, Essex, South East, United Kingdom
Employment Type
Permanent, Work From Home
will need to be a proficient programmer in Python, with extensive experience in the use of libraries, tools (docker, git) and frameworks (e.g. LangChain/LangGraph or similar) to support efficient development. Typical Responsibilities: Propose and lead novel research in given topic areas. Lead technical delivery of small project teams. ...

Senior Prompt Engineer - AI - Full-time

Location
Reading, England, United Kingdom
Claude, Llama, Mistral, Nova (or similar). Advanced programming skills in Python and/or Java. Experience with AI orchestration frameworks such as LangChain and LlamaIndex. Hands-on experience with prompt evaluation and monitoring tools, such as LangSmith, Fiddler, InspectAI, and OpenAI Evals. What's Offered Competitive salary ...

Lead Prompt Engineer for Scalable AI Workflows

Location
Reading, England, United Kingdom
role demands 5+ years in software engineering with 2+ years in production prompt engineering, expert Python/Java, and hands-on use of LangChain, LangSmith, and OpenAI Evals. Hybrid UK-based position with equity. #J-18808-Ljbffr ...

Senior AI Engineer

Hiring Organisation
MarkIT Placements
Location
Didcot, Oxfordshire, South East, United Kingdom
Employment Type
Contract, Work From Home
Contract Rate
From £700 to £900 per day
maintainable at scale. What You'll Be Doing Design and build multi-agent AI systems from the ground up, using frameworks such as LangGraph, LangChain, Haystack or similar where appropriate. Develop orchestration, state management and tool-calling infrastructure required to make agentic systems reliable in production. Integrate large language models … shipping multi-agent or agentic AI systems into production . Strong Python development skills and excellent software engineering fundamentals. Hands-on experience with LangGraph, LangChain, Haystack or similar AI/LLM frameworks , together with the ability to work below the framework level when necessary. Experience designing and deploying AI/ ...

Senior AI Agent Engineer - Agentic Applications

Location
Wokingham, England, United Kingdom
deploy intelligent systems using Large Language Models (LLMs). The ideal candidate will have a background in AI applications, particularly those utilizing frameworks like LangChain and Crew AI. Responsibilities include developing AI workflows, collaborating with teams, and optimizing AI systems in production environments. This role offers competitive compensation ...

Research Engineer - LLMs & Generative Audio

Location
Slough, England, United Kingdom
rapidly in a greenfield environment Key Details Salary: Up to ~£120k base Working model: Hybrid (3+ days/week in London) Stack: Python, HuggingFace, LangChain, RAG, multimodal AI, TTS/STT, evaluation frameworks Sponsorship: To be confirmed #J-18808-Ljbffr ...

Martech Engineer

Hiring Organisation
Harnham - Data & Analytics Recruitment
Location
London, South East England, United Kingdom
Employment Type
Full-Time
Salary
£50,000 - £55,000 per annum
cloud solutions, ideally within GCP * Familiarity with serverless architectures and API development * Experience working with AI tools, LLM applications, or agentic frameworks such as LangChain or CrewAI * Knowledge of front-end technologies such as React * Experience working within a digital agency, marketing technology, or consulting environment * Understanding of digital marketing ...

Martech Engineer

Hiring Organisation
Harnham - Data & Analytics Recruitment
Location
London, South East England, United Kingdom
Employment Type
Full-Time
Salary
£45,000 - £55,000 per annum
applications Familiarity with cloud platforms, ideally Google Cloud Platform (GCP) Experience integrating AI capabilities into products and workflows Knowledge of agentic frameworks such as LangChain, CrewAI, or similar Exposure to front-end development frameworks such as React Excellent communication skills with the ability to explain technical concepts clearly Experience working ...

Lead AI Agent Engineer

Location
Wokingham, England, United Kingdom
develop, and deploy LLM-based systems, agentic applications and complex AI workflows using generative AI models (Claude, OpenAI, Gemini, etc.) and relevant frameworks (e.g., LangChain, LangGraph, Crew AI, or similar). Deploy, operate, and iterate on AI systems in production environments, including performance tuning and cost optimization. Design and build … workflows, demonstrating an understanding of concepts like planning, memory, tool usage, and multi-agent systems. Familiarity with AI workflow orchestration and agentic frameworks (e.g., LangChain, LangGraph, Crew AI, Haystack, or similar). Practical experience with RAG architectures, embeddings, vector databases, and semantic search. Experience working with Model Context Protocol ...

Martech Engineer

Hiring Organisation
Harnham - Data & Analytics Recruitment
Location
London, South East England, United Kingdom
Employment Type
Full-Time
Salary
£50,000 - £55,000 per annum
communicate effectively with technical and non-technical stakeholders Desirable: BigQuery or similar data warehousing tools ETL/ELT platforms AI frameworks such as LangChain or CrewAI React or modern JavaScript frameworks What They Offer Up to £55,000 salary Bonus scheme Hybrid working Wellbeing allowance Enhanced parental leave Study ...

Martech Engineer

Hiring Organisation
Harnham - Data & Analytics Recruitment
Location
London, South East England, United Kingdom
Employment Type
Full-Time
Salary
£50,000 - £55,000 per annum
integrations Understanding of digital marketing channels such as SEO, Paid Search, Content, or Paid Social Desirable: BigQuery Funnel, Adverity, or similar ETL tools React LangChain, CrewAI, or AI workflow automation What They Offer Up to £55,000 salary Company bonus Hybrid working Exposure to AI, automation, and data-focused projects ...

Martech Engineer

Hiring Organisation
Harnham - Data & Analytics Recruitment
Location
London, South East England, United Kingdom
Employment Type
Full-Time
Salary
£45,000 - £55,000 per annum
platforms such as Funnel or Adverity Experience pulling and transforming data through APIs Hands-on experience integrating AI into tools and workflows, including LangChain or CrewAI Agency experience The role is hybrid, with two days a week in either London or Brighton (London preferred) , and offers ...