---
title: 'Contracts Manager at Antithesis'
canonical: 'https://feeny.ai/job/contracts-manager-antithesis-vienna-b93vh94h94et'
type: 'job'
last_seen: '2026-11-08'
---

# Contracts Manager at Antithesis

- **Company:** Antithesis
- **Location:** Vienna, VA
- **Employment:** full-time
- **Work type:** onsite
- **Posted:** 2026-10-26
- **Last confirmed live:** 2026-11-08
- **Apply:** https://jobs.ashbyhq.com/antithesis/a96f41e9-7e99-453b-acb4-24bdecada06b

## Job description

## The role

Antithesis is looking for a Contracts Manager to help us move quickly and thoughtfully as we scale. In this role, you will own day-to-day contract review and negotiation across a wide range of commercial matters, with a particular focus on helping internal teams close business efficiently while managing legal and operational risk. This is a practical, high-judgment role for someone who is comfortable working directly with cross-functional partners, translating legal issues into clear business guidance, and improving the systems and processes that support contract review at scale.

## What you'll do

- Review, draft, and negotiate a broad range of commercial agreements, including NDAs, vendor agreements, customer-facing agreements, and other operational contracts
- Partner closely with sales, finance, and leadership teams to provide clear, actionable guidance during contract review
- Identify legal, business, and operational risks in proposed agreements and recommend practical paths forward
- Support all aspects of the Legal department as needed in a dynamic, rapidly growing organization.
- Help maintain and improve contract templates, fallback language, playbooks, and internal review processes
- Support contract intake and triage so requests are routed appropriately and handled efficiently
- Advise internal stakeholders on approval requirements, escalation points, and contracting best practices
- Track recurring issues in negotiations and help turn them into better standards, tools, and workflows
- Contribute to the buildout of a legal function that is trusted, responsive, and business-minded

## What you bring

- Bachelor’s degree
- 5+ years of commercial transactions experience, preferably in a fast-paced environment
- Strong judgment about risk, materiality, and when to escalate
- Ability to explain contract issues in plain English to non-lawyers
- Experience with Ironclad is a plus
- Excellent drafting, issue-spotting, and negotiation skills
- A highly organized working style and the ability to manage multiple matters at once
- Comfort working in a fast-moving environment where priorities can shift quickly
- A service-oriented mindset and a bias toward solving problems, not just identifying them

You may be a great fit if

- You like building structure where there is ambiguity
- You care about helping teams move fast without cutting corners
- You are equally comfortable redlining agreements and improving the process behind them
- You know how to be precise without being rigid
- You have a strong instinct for when a contract issue is routine, when it is strategic, and when it needs escalation

This role is fully onsite in Vienna, VA.

## 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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