---
title: 'Business Development Representative at Antithesis'
canonical: 'https://feeny.ai/job/business-development-representative-antithesis-london-rtkspzmp2mrj'
type: 'job'
last_seen: '2026-09-06'
---

# Business Development Representative at Antithesis

- **Company:** Antithesis
- **Location:** London, United Kingdom
- **Employment:** full-time
- **Work type:** onsite
- **Posted:** 2026-08-28
- **Last confirmed live:** 2026-09-06
- **Apply:** https://jobs.ashbyhq.com/antithesis/0e00cc5f-0581-440c-bcf2-1c7eaff45712/application

**Skills:** Salesforce, Microsoft Office products, Coding experience, SWE internship experience

> Antithesis is seeking a Business Development Representative in London to qualify leads, prospect for new customers, and drive sales campaigns. The role involves engaging engineering leaders with tailored technical messaging and collaborating with Account Executives to book qualified meetings.

## Job description

## About Us

We’re on a mission to redefine how modern distributed systems are tested and released. Our platform is trusted by engineering teams who demand rock-solid reliability, scalable performance, and deep technical visibility. Our platform doesn’t just assure system correctness and reliability, it exists because developers need something better. If you’ve ever experienced the pain of a production outage, had a bad week on-call, or had a release delayed by weeks because of one killer bug – you’ll understand exactly why we’re doing what we do. If you're passionate about developer-first products, system resilience, and correctness, we’d love to talk.

## About the Role

We are looking for a driven and resilient individual with strong communication skills, an ability to learn technical concepts quickly, and ideally some experience in sales development or engaging with engineering leaders. As a Business Development Representative, you will play an important role within the sales organization, qualifying and generating leads, prospecting for new customers, driving event engagement, and developing/executing sales campaigns.

## What You’ll Do

- Research and identify high-potential companies within Antithesis’s ICP
- Source and engage prospects through multi-channel outreach (LinkedIn, email, phone, events, X, etc)
- Craft tailored, technical messaging that resonates with engineering leaders (CTOs, Directors of Engineering, Founding Engineers, etc)
- Maintain a strong understanding of Antithesis’s platform and be able to validate a prospect company’s technical and business fit
- Maintain a strong understanding of Antithesis’s platform and be able to articulate its value in both technical and business terms
- Close collaboration with Account Executives to book and prepare qualified meetings, demos, proof-of-concept discussions
- Close collaboration with Marketing and RevOps to refine campaigns and event-driven outreach
- Stay current on industry trends in distributed systems, testing, and reliability to better engage technical prospects

Minimum Qualifications:

- Bachelor’s degree or equivalent
- Self-starter with developed interpersonal skills and organizational skills
- Creative thinker and willing learner
- Results-oriented and prepared to work in a fast-paced environment
- Ability to understand deeply technical concepts
- Team player

Preferred Qualifications:

- Ability to speak English and at least one other common language like French, Dutch, Danish, Swedish, German, Spanish, Italian, etc
- Computer Science or Information Systems degree
- SWE internship experience or coding experience
- 1+ years of sales experience or sales certification
- 1+ years cold calling experience
- 1+ years Salesforce experience
- 1+ years Microsoft Office products experience

Visa Sponsorship: We are unable to provide visa sponsorship or immigration support for this position. Candidates must be authorized to work in the applicable country without current or future sponsorship requirements.

## About Antithesis

## Company Overview
- **One-liner**: Antithesis provides an autonomous software testing platform that uses deterministic simulation and state space exploration to exhaustively find and reproduce bugs in complex, distributed systems.
- **Entity Type**: Private (Series A)
- **Headquarters**: Vienna, Virginia, United States (with satellite offices in London, UK and San Francisco, California)
- **Founded**: 2018
- **Founders**: Will (CEO), Ben (CTO), and Dave (co-founder) – full last names not publicly disclosed

## Core Business
- **Primary industry/industries**: Software testing, autonomous reliability, developer tools, infrastructure software
- **Target customers**: B2B, Enterprise – companies building complex distributed systems (e.g., databases, cloud infrastructure, fintech, blockchain)
- **Mission or purpose statement**: “De‑risk agentic development of critical systems” by exposing bugs without human review, false positives, or risking production.

## Products & Services
- **Antithesis Platform**: A SaaS/on‑prem platform that runs a customer’s complete system in a fully deterministic, ephemeral simulation. It exhaustively analyzes behavior using fuzzing and state space exploration, automatically exposes bugs, provides a root cause and perfect reproduction, and arms developers (including AI agents) with high‑signal correctness feedback.

## Market Standing
- **Valuation/Market Cap**: Not disclosed
- **Key Metric**: Total Funding – $182 M (latest round: $105 M Series A announced December 3, 2025)
- **Notable Investors/Partners**: Amplify Partners, Spark Capital, Tamarack Global, Patrick Collison, Sholto Douglas, and 31+ other investors. Customers include Jane Street, MongoDB, Confluent, and Tigris Data.
- **Growth Signals**: Launched out of stealth in 2024; 19 open job openings as of mid‑2026; customers report 40 × faster change verification, 10 × faster time‑to‑release, and discovery of severe bugs missed by all other testing.

## Competitive Advantages
- **Deterministic replay** of every bug found – eliminates the “cannot reproduce” problem.
- **Exhaustive state space exploration** that catches unknown unknowns without false positives.
- **Runs the entire system** (not unit/integration tests) – simulates production‑like conditions.
- **Already trusted by elite engineering teams** (e.g., quantitative trading firm Jane Street, leading database companies) – a strong reference moat.

## Strategic Focus
- Accelerate product innovation and expand support for **agentic development** – help AI agents build bug‑free code by providing high‑signal correctness feedback.
- Broaden platform coverage across **databases, cloud infrastructure, fintech, blockchain**, and other critical system domains.
- Scale go‑to‑market and customer success teams to meet enterprise demand.

## Why Work Here
- **Culture**: “Collaborative, highly technical, and customer‑focused” – deep‑tech environment solving hard distributed‑systems problems.
- **Work policy**: In‑office daily (Vienna, London, or San Francisco) to facilitate tackling difficult challenges together.
- **Perks & engineering culture**: Well‑funded startup with a long‑term mindset; team includes veterans from FoundationDB, Apple, Google, and MongoDB; emphasis on autonomy, technical excellence, and fun.
- **Interview process**: Transparent and respectful – they publish a “No Ghost Policy” and welcome unsolicited applications from talented candidates.

## Sources
1. [antithesis.com – Careers](https://antithesis.com/company/careers/)
2. [antithesis.com – Homepage](https://antithesis.com/)
3. [antithesis.com – Leadership](https://antithesis.com/company/leadership/)
4. [cbinsights.com – Antithesis Company Profile](https://www.cbinsights.com/company/antithesis)
5. [theconsensus.dev – Antithesis Profile](https://theconsensus.dev/company/antithesis.html)

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