Senior AI/ML Engineer

Methodfi; Remote; GBP 80,000 - GBP 100,000; Full time

Job summary

A forward-thinking technology firm in the United Kingdom is looking for an experienced Backend engineer to join their Linea AI team. The successful candidate will design and scale distributed systems, solve complex scaling challenges, and engineer secure software capable of processing untrusted data at scale. Candidates should have over 6 years of backend experience with strong skills in Python and/or Go. This is an opportunity to work on high-impact innovation projects and make significant contributions to the future of data security.

Qualifications

• 6+ years of experience building and scaling backend systems.
• Experience with large-scale foundational models and transformer-based architectures.
• Comfortable in remote, fast-paced environments.

Responsibilities

• Design and scale distributed systems to process large graph datasets.
• Productionize AI systems partnering with research and product teams.
• Engineer secure-by-design software for large-scale internet-facing systems.

Skills

Python

Go

Deep analysis

AI systems

Microservices

Data processing

Tools

Kubernetes

Docker

Redis

LangChain

BigQuery

Job description

About the role

We’re looking for an experienced Backend engineer to help drive and evolve our product, focusing on high-impact innovation projects as part of our Linea AI team. You will be working on cutting-edge technology and ideas and bringing AI prototypes to production. You will work closely with Labs team to operationalize and scale AI prototypes across many customers.

What you’ll do

• Design and scale distributed systems: Architect, build, and optimize highly scalable and fault-tolerant systems that process large graph datasets at enterprise scale, handling billions of events in real time from tens of thousands of endpoints with sub-second latency.
• Solve complex scaling challenges: Tackle real-world performance and reliability problems through deep analysis, profiling, and systematic troubleshooting in high-throughput distributed environments.
• Build with modern infrastructure: Develop and evolve a microservices-based architecture using technologies such as Go, Kubernetes, Docker, and Redis, in a continuously improving production stack.
• Engineer secure-by-design software: Write hardened, security-first code capable of safely processing untrusted data, resisting real-world attack vectors, and operating reliably across large-scale, internet-facing systems.
• Productionize AI systems: Partner with research and product teams to operationalize AI prototypes, turning experimental models into robust, scalable, and production-ready services.

Who you are

• Proven Backend Expertise: 6+ years of experience building and scaling backend systems, with strong proficiency in Python and/or Go, powering production applications used at scale.
• Full-Stack Impact: Demonstrated track record of designing and delivering full-stack applications that are actively used in real-world, high-traffic environments.
• Generative AI & ML at Scale: Hands-on production experience with large-scale foundational models and transformer-based architectures, including deploying, monitoring, and iterating on GenAI systems.
• Agent & Workflow Systems: At least 1 year of experience building AI agents and orchestration workflows using frameworks such as LangChain, LangGraph, Genkit, or similar technologies.
• ML Systems & Data Pipelines: Experience delivering machine learning systems at scale, including robust model evaluation, continuous quality improvement pipelines, and data processing using columnar databases and large messaging systems (e.g., Pub/Sub, Kafka).
• Ownership & Innovation Mindset: Comfortable working in remote, fast-paced environments, with an entrepreneurial mindset-driven to solve complex, real-world problems through innovation and breakthrough technology.

Good to have

• Security & Product Domain Experience: Background building products in data security, DLP, or application security environments.
• Cloud Data & AI Workflows: Experience with GCS and BigQuery, and familiarity with LangGraph or similar frameworks for AI agent orchestration.
• LLM Evaluation & Quality Systems: Hands-on experience designing or operating LLM evaluation pipelines, including automated testing, monitoring, and continuous quality improvement.

Joining Cyberhaven is a chance to revolutionize data security. Traditional tools fall short, but we’ve reimagined protection with AI-enabled data lineage that analyzes billions of workflows to understand data, detect risk, and stop threats. Backed by $250M from leading investors like Khosla and Redpoint, our team includes leaders who built industry-defining technologies at CrowdStrike, Palo Alto Networks, Meta, Google, and more. This role lets you shape the future of data security, alongside experts driven to help customers protect their most valuable information.

Cyberhaven is committed to creating a diverse environment and is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, gender, gender identity or expression, sexual orientation, national origin, genetics, disability, age, or veteran status.