AI Engineer

Greater Giving, Inc.; Greater London; On-site; GBP 90,000 - 150,000; Full time

Benefits offered by this job

Medical coverage

Bonus/equity potential

Wellness Week

Family inclusion (FLEX)

Paid time off

Job summary

Greater Giving, Inc. is seeking an AI Engineer to join the AI Innovation & Technology team in London.

You will explore emerging AI technologies, prototype ideas, and translate promising innovations into production-ready solutions that drive measurable business impact. You will work across Generative AI, Agentic AI, ML, and LLMs, evaluating capabilities, conducting research, and helping identify high-value use cases.

Qualifications

• 5+ years in AI/ML/Data Science or related fields.
• Strong Python skills with PyTorch/TensorFlow and Hugging Face.
• Experience delivering AI proof-of-concepts to production.
• Expertise in deep learning, NLP, LLMs, embeddings, and vector databases.
• Familiarity with agentic AI and orchestration frameworks.
• Experience deploying AI on Azure/AWS/GCP.
• Excellent communication and collaboration skills.
• Hands-on, curious mindset with willingness to experiment.
• Experience with multimodal AI, AI governance, or MLOps.

Responsibilities

• Assess, design, build, deploy ML/AI models and foundational models for real-world applications.
• Research emerging AI technologies, prototype capabilities, and run proof-of-concepts.
• Collaborate with business and tech teams to identify high-value use cases.
• Drive a culture of innovation through experimentation, knowledge sharing, and continuous learning.
• Define best practices, technical standards, and reusable patterns for AI development.
• Develop agentic AI workflows using orchestration frameworks such as LangChain, or similar.
• Develop and maintain AI system blueprints, ensure integration with existing infrastructure, and optimize performance and scalability.
• Ensure compliance, observability, and scalability are embedded in design decisions.
• Ensure AI solutions comply with organizational security, ethical guidelines, and regulatory standards.
• Collaborate with engineering, product, and business teams to identify and deliver high-impact AI opportunities.
• Stay at the forefront of advancements in AI, foundation models, and autonomous agents.

Skills

Python

PyTorch

TensorFlow

Hugging Face

LLM architectures

NLP

Agentic AI concepts

Cloud deployment (Azure/AWS/GCP)

Problem solving

Communication

Collaboration

Education

Advanced degree in AI/CS/DS

Tools

LangChain

Job description

Make your mark at one of the biggest names in payments. We're looking for an AI Engineer to join our AI Innovation & Technology team. You'll work at the forefront of AI, exploring emerging technologies, rapidly prototyping new ideas, and transforming promising innovations into production-ready solutions that create measurable business impact.

This role is ideal for someone who enjoys combining deep technical expertise with experimentation and discovery. You'll continuously evaluate new AI capabilities, conduct research and proof of concepts, and help identify opportunities where AI can unlock new customer and business value. You'll work across Generative AI, Agentic AI, Machine Learning, and LLMs, helping deliver innovative capabilities that create real business value.

Location: London, United Kingdom

What you’ll own

• Assess, Design, build, optimize and deploy ML/AI models, Foundational models for real-world applications
• Continuously research and evaluate emerging AI technologies, models, prototype new AI capabilities, and run proof-of-concepts.
• Collaborate with business and technology teams to identify high-value use cases.
• Drive a culture of innovation through experimentation, knowledge sharing, and continuous learning.
• Help define best practices, technical standards, and reusable patterns for AI development across the organization.
• Develop agentic AI workflows using orchestration frameworks such as LangChain, or similar.
• Develop and maintain AI system blueprints, ensure integration with existing infrastructure, and optimize performance and scalability.
• Ensure compliance, observability, and scalability are embedded in design decisions. Drive best practices for AI model deployment, monitoring, and continual improvement.
• Ensure AI solutions comply with organizational security, ethical guidelines, and regulatory standards.
• Collaborate with engineering, product, and business teams to identify and deliver high-impact AI opportunities.
• Stay at the forefront of advancements in AI, foundation models, and autonomous agents.

What you’ll bring

• 5+ years of experience in AI, Machine Learning, Data Science, or related fields.
• Strong Python skills and experience with frameworks such as PyTorch, TensorFlow, and Hugging Face.
• Experience taking AI proof-of-concepts from idea to production.
• Strong knowledge of deep learning, NLP, and LLM architectures and experience in fine-tuning LLMs or training domain-specific models, RAG, embeddings, and vector databases.
• Familiarity with agentic AI concepts and orchestration frameworks.
• Experience deploying AI solutions on cloud platforms such as Azure, AWS, or GCP.
• Strong problem-solving skills and a passion for innovation.
• Excellent communication and collaboration skills.
• A curious, hands‑on mindset with a desire to experiment, learn, and build.
• Experience with multimodal AI, AI governance, or MLOps.

Bonus Points

• Advanced degree in AI, Computer Science, Data Science, or related disciplines.
• Research, publications, patents, or open-source contributions in AI/ML.
• Knowledge of payments, fintech, or financial services.

My Health

We offer access to medical coverage that supports the health and wellbeing for you and your family.

My Money

In addition to base salary, you may be eligible for bonuses and/or equity awards, determined by role, level, impact, and our policies.

My Lifestyle

We have a dedicated Wellness Week each year – which includes an extra paid day off – so you can take time to relax, recharge and invest in your wellbeing.

My Family

FLEX, our family inclusion community, offers support for all Globalpayers at every stage, from raising families to caring for loved ones.

My Time Off

We offer paid time off and public holidays so you can rest, recharge and spend time on what matters most.