Founding Account Executive

White Circle; Greater London; Hybrid; GBP 91,000 - 189,000; Full time

Benefits offered by this job

Equity

Health insurance

Flexible time off

401(k)

Learning and development

Team off-sites twice a year

Job summary

White Circle is an AI Safety company building the safety, reliability, and optimization layer for AI systems. We are seeking our first dedicated US sales hire to own high-intent deals and shape the sales motion from first principles.

You will build the pipeline, navigate technical buying committees, and close six-figure deals while helping craft the revenue playbook as we scale. Equity opportunities exist for high performers.

Qualifications

• 5+ years carrying a closing quota in B2B SaaS, with a track record of closing net-new mid-market or enterprise deals at $100k+ ACV
• Energised by founder-style selling: mapping buying committees, creating urgency, and closing without a fully built machine around you
• Technically literate - able to discuss complex technical products with technical buyers
• Able to operate effectively without established playbooks or processes
• Extensive cold calling experience
• Willingness to travel

Responsibilities

• Build pipeline by engaging executives and turning relationships into opportunities.
• Own six-figure sales cycles from first contact to signature and close.
• Help sharpen the ICP, narrative, proposals, ROI cases, pricing, and the sales playbook.

Skills

Closing high-value deals

B2B SaaS

Technical literacy

Account mapping

Travel willingness

Entrepreneurial selling

Job description

TL;DR: We are looking for our first dedicated US sales hire to build pipeline, close six-figure deals, and help create White Circle’s sales playbook from the ground up. You’ll own the full sales cycle end to end: open doors, navigate technical buying committees, create urgency, close the deal, and help shape the revenue organization as we scale.

About White Circle

We process over 100M+ API calls every month and have raised $11M from top funds, founders, and senior leaders at OpenAI, Anthropic, HuggingFace, Mistral, DeepMind, Datadog, Sentry, and others.

White Circle is an AI Safety company building the safety, reliability, and optimization layer for AI systems. At the core of our platform are policies - simple natural-language rules that define what an AI model should and shouldn’t do. We automatically test, enforce, and continuously improve these policies at scale.

We fine-tune and train our own LLMs so they run faster and cheaper than any open or proprietary model.

We’re at a multi-million-dollar run rate already, having signed customers like Lovable and multiple neobanks. You’ll be joining at the most exciting time - early enough that the equity can be life-changing, but at a point where demand has been proven.

We’re a small, highly focused team. If you want to work deeply on hard problems and build the category-defining company in AI safety – this role is for you.

What you'll do

This is our first dedicated US sales hire. You’ll own high-intent technical deals, shape the sales motion from first principles, and have a path to building or leading part of the revenue org as we scale.

• Build pipeline. You will build relationships with executives we can help. That means working referral networks, getting coffees, traveling to conferences, staying close to customers, picking up the phone and turning one good relationship into five more. You’ll do much more than sequencing prospects to death. The goal is to become the kind of person executives actually want to talk to and open doors for.

• Run deals. You will own six-figure sales cycles from first conversation to signature. You will understand the business problem, buying dynamics, political map, risks, and path to close. You will be clear about what needs to happen next, who owns it, and whether the deal has legs.

• Help crack the sales playbook. You will help sharpen the ICP, narrative, proposals, ROI cases, mutual action plans, pricing, etc. We have great traction, but the sales motion is not fully figured out. Ultimately, you’ll have a chance to lead a team if you want it and earn it.

Must-haves

• 5+ years carrying a closing quota in B2B SaaS, infrastructure, security, developer tools, or AI, with a track record of closing net-new mid-market or enterprise deals at $100k+ ACV

• Energised by founder-style selling: sourcing strategic accounts, mapping buying committees, creating urgency, and closing without a fully built machine around you

• Technically literate - can hold conversations about complex technical products and have credibility with technical buyers

• Can operate effectively without established playbooks or processes

• Extensive cold calling experience

• Readiness to travel

Strong nice-to-haves

• Have founded a company or built something from scratch

• Started in outbound/SDR and earned a closing role quickly

• Have been an early sales hire at a startup, especially a YC company

• Have experience as a software engineer, solutions engineer, sales engineer, or in another technical role

What success looks like after 12 months

• You’ve closed multiple large logos, adding $500k-$1m in revenue

• You’ll be on track to earn leadership through your performance, if desired

• You will have helped find message-market fit and contributed to the sales playbook

Compensation & benefits

• Competitive compensation package, including equity

• Flexible time off

• Health insurance

• Mental health support, including coverage for therapy when you need it

• 401(k) retirement plan

• Learning and development support for courses, conferences, and opportunities to grow your skills

• All the hardware, subscriptions, tools, and services you need

• Team off-sites twice a year: we’ve recently been to the Alps, Saint-Tropez, and Marbella

How we hire

1. Intro call (30 min)

2. Practical Sales Exercise with Head of Revenue (60 min)

3. Final conversation with our CEO (30 min)