Machine Learning/ AI Engineer – Agentic Systems

NLP PEOPLE; City Of London; On-site; GBP 70,000 - 90,000; Full time

Job summary

A leading AI video platform in the UK is looking for a Senior AI/ML Engineer to design and deploy AI agents using the OpenAI Agents SDK. The ideal candidate has 6+ years of experience in software engineering with a strong background in Python and experience with agent frameworks. Join a cross-functional team to build innovative solutions that transform education and content creation.

Qualifications

• 6+ years of experience in software engineering, with 3+ years in ML/AI engineering or NLP.
• Strong Python skills with experience in building production systems.
• Experience with agentic frameworks such as OpenAI Agents SDK.

Responsibilities

• Design, build, and deploy AI agents using frameworks like OpenAI Agents SDK.
• Own architectural components within the Copilot project.
• Collaborate with researchers and engineers on integrating LLMs.

Skills

Python

AI/ML Engineering

Software Engineering

Real-time multi-agent applications

OpenAI Agents SDK

Education

Background in Computer Science or Software Engineering

Tools

AWS

GCP

Docker

Job description

Overview

Welcome to the video first world. From your everyday PowerPoint presentations to Hollywood movies, AI will transform the way we create and consume content. Today, people want to watch and listen, not read — both at home and at work. If you’re reading this and nodding, check out our brand video.

Despite the clear preference for video, communication and knowledge sharing in the business environment are still dominated by text, largely because high-quality video production remains complex and challenging to scale—until now…

Meet Synthesia. We’re on a mission to make video easy for everyone. Born in an AI lab, our AI video communications platform simplifies the entire video production process, making it easy for everyone, regardless of skill level, to create, collaborate, and share high-quality videos. We enable large organizations to communicate and share knowledge through video quickly and efficiently. We’re trusted by leading brands and have a growing community of users.

What you’ll do at Synthesia

• Design, build, and deploy production-grade AI agents using frameworks such as OpenAI Agents SDK
• Own architectural components within the Copilot project, ensuring modular, scalable, and maintainable designs
• Implement new features quickly to improve user experience and unblock the team as we iterate
• Collaborate closely with researchers and engineers to integrate LLMs into complex, multi-agent systems
• Write clean, efficient, and tested code following best engineering practices
• Optimize and maintain agent pipelines from prototype to production
• Spread good practices around scalable agentic system design and AI software engineering

Who you are

• You have a background in Computer Science, Software Engineering, or a related field.
• You have 6+ years of experience in software engineering with at least 3+ years of experience in ML/AI engineering or NLP-related software development.
• You are an engineer at heart, you enjoy building working systems more than writing research papers.
• You have strong Python skills and experience in building and maintaining production systems.
• You have hands-on experience with agentic frameworks such as OpenAI Agents SDK, LangChain, CrewAI, or LangGraph.
• You’ve built and deployed real time multi-agent applications that are deployed to and tested by real users.
• You communicate clearly and work well in small, fast-paced teams.

Nice to have

• Experience using or fine-tuning LLMs (directly or via APIs).
• Comfort with cloud environments (AWS, GCP) and Docker.

Collaboration

• You’ll work closely with the Copilot Team, a cross-functional group of engineers and researchers.
• You’ll own key architectural aspects of the system while collaborating daily on design, implementation, and deployment.
• Success means empowering others with your engineering expertise and improving how the whole team builds and scales agents.

Why join us?

We’re building the future of AI-driven learning. Our instructional design agents are transforming how educational content is created—from course outlines and writing to visuals, interactivity, and immersive roleplay scenarios. You’ll work alongside world-class engineers and researchers to make high-quality education creation accessible to everyone.

Company

Synthesia

Language requirements

Specific requirements

Educational level

Level of experience (years)

Senior (5+ years of experience)

Tagged as: Industry, Machine Learning, NLP, United Kingdom