Lead Customer Success Engineer

Monolith AI; Greater London; On-site; GBP 70,000 - GBP 90,000; Full time

Job summary

A leading AI firm in Greater London is seeking a Lead Customer Success Engineer to enhance engineering processes through AI. This role involves owning the delivery for strategic customers by designing tailored solutions and managing project complexities. Ideal candidates will possess a strong technical background, experience in client-facing roles, and a passion for transforming AI into clear customer value. Occasional travel may be required, making this a dynamic position for those who thrive in collaborative and ambiguous environments.

Qualifications

• Significant experience leading complex, technical, client-facing projects.
• Ability to own ambiguity and make delivery decisions.
• Strong engineering or scientific background.

Responsibilities

• Act as primary owner of delivery for strategic customers.
• Design multi-product solutions delivering customer value.
• Manage delivery scope, timelines, dependencies, and risks.

Skills

Project leadership

Technical advisory

Customer communication

Solution design

Cross-functional collaboration

Education

Degree in Physics, Maths, or Engineering

Job description

Do you want to superpower engineering with AI? At Monolith AI, we help engineering teams turn complex test and simulation data into better decisions, faster. As we scale our customer delivery, we’re looking for a Lead Customer Success Engineer to act as a technical delivery lead on client engagements.

This role is for someone who enjoys owning complex, customer-facing delivery -designing end-to-end solutions, coordinating multiple workstreams, and translating technical execution into clear customer value.

What you’ll be doing

You will act as the primary owner of delivery for a set of strategic customers, combining technical depth with active project leadership.

You’ll be responsible for:

• Owning end-to-end customer delivery, acting as the single accountable lead within a client team
• Designing bespoke, multi-product solutions that deliver clear and measurable customer value
• Breaking down complex customer objectives into structured workstreams, milestones, and success metrics
• Actively managing delivery: scope, timelines, dependencies, risks, and trade-offs
• Coordinating execution across internal teams (product, data science, software, forward deploy)
• Translating technical progress into clear, customer-facing updates and reports
• Acting as a trusted technical advisor to senior customer stakeholders
• Getting hands-on where needed to unblock delivery or validate technical approaches

A bit about you

• You have significant experience leading complex, technical, client-facing projects
• You are comfortable owning ambiguity and making delivery and prioritisation decisions
• You have a strong engineering or scientific background and can go deep when required
• You enjoy designing solutions, not just executing predefined tasks
• You communicate clearly and confidently with both technical and non-technical stakeholders
• You work well autonomously but thrive in cross-functional environments
• You are happy to travel for up to ~30% of your work

It’s a bonus if you have

• Experience applying AI/ML or data science in an engineering context
• A Physics, Maths, or Engineering degree