Reasonable AI

Research

ForwardDeployedEngineer(FDE)

£120–170k ~AI est. London, England, United Kingdom FULL TIME
Market Sentiment
HIGH DEMAND

Neural analysis suggests this role is
optimal for Mid+ candidates.

The Brief

“Forward Deployed Engineer (FDE) at Reasonable AI. Skills: Applied AI research, Formal verification, Software engineering. Lead discovery in customer meetings. Own technical scoping”

Industry & Context.

Research
Problems you'll solve

Diagnose system fit; Identify capability gaps; Elicit specifications

Eligibility Requirements

Customer and team travel, In-person frequently

What They're Looking For.

Must Have

High-accountability engineering culture, Systems languages like Rust, JVM languages like Java/Kotlin, Cloud-native languages like Go, Formal methods or verification domain expertise, Specification-aware programming understanding, Proof assistants and verification tools understanding, Experience building relationships with senior engineers, Genuine interest in commercial side, Comfort with early-stage work

Nice to Have

Contribute to formal verification projects, Contribute to program synthesis projects, Run production back-end services, Accountable for distributed systems

What You'll Do.

Lead discovery in customer meetings

Own technical scoping

Bring research depth to conversations

Diagnose system fit for verification

Design initial customer solutions

Translate observations into deployments

Identify capability gaps

Feed signals into R&D

Elicit real specifications

Build trust with partners

Translate between partners and frontier

How You'll Work.

Team & Collaboration

Customer meetings; Design partner whiteboard; Cross-functional teams

Communication Scope

Customer meetings; Partner conversations

Full Job Description

[Reasonable](https://reasonable.io/) is the applied AI research company building formal verification for post-human software development. Correctness guarantees for software developed by humans and machines are no longer impractical or prohibitively expensive. Code generated by AI can be provably correct, rather than plausibly functional. At Reasonable, we are doing the research, training the models, and developing the products required to make this a reality. Achieving this creates a new paradigm for high accountability software development and unlocks the full potential of AI for professional engineers. We’re a compact, talent-dense technical team, with deep domain expertise in machine learning, formal verification and mathematical models of program semantics. Join us to develop the next frontier of formal reasoning and software engineering. Proof follows function. **The Role** As a founding Forward Deployed Engineer (FDE), you will help shape how we solve problems for our partners, and set the patterns that will be inherited by the customer-facing hires that follow. Working alongside Ferenc and Craig, you’ll be at a design partner’s whiteboard as much as you’re in our codebase. The role is just as much discovery and translation as it is development and deployment. Your work will be instrumental in figuring out how formal verification should fit into the rapidly evolving stack and workflow of the most sophisticated engineering teams on the planet. **You Will** * **Lead discovery** by joining early customer meetings, owning technical scoping, and bringing research depth to prospective partner conversations * **Diagnose** which of a prospective partner’s systems are fit for verification and proof of concept (POC) work. POCs must solve real and replicable problems. * **Design POCs** and initial customer solutions with us, translating observations and requirements into tightly scoped deployments a small team can deliver rapidly * **Identify capability gaps** which rec

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