Commercial Contracts Manager - 12m FTC

Who are PortSwigger:

PortSwigger is a company built around a simple belief: security should empower people, not slow them down. We create world-class tooling that helps security teams and developers uncover and fix real vulnerabilities, the kind that actually matter. Our products are crafted with care, backed by deep research, and shaped by a relentless drive to make the web safer for everyone.

We’re a successful, engineering-led organisation where small squads are empowered to take forward work in a suitable way, high-leverage work. Curiosity fuels us, craftsmanship defines us, and mutual support keeps us growing together. Here, you’ll have real agency, clear direction, and the freedom to push boundaries, supported by thoughtful coaching and a culture that values learning as much as delivery.

Finance Tribe: 

The Finance tribe keeps PortSwigger commercially healthy and future-fit. Beyond core accounting, compliance, planning and analysis, we’re the guardians of commercial performance and the enablers of strategic investment — providing robust financial controls, accurate reporting and risk stewardship so the business can scale with confidence. We partner closely with Product, Growth and Technology to turn data into clear commercial insight: forecasting and scenario planning that surface opportunities, guide investment in product and people, and give leaders the information they need to make timely, high-quality decisions.

What you’ll be doing:

Manage the end-to-end lifecycle of commercial contracts

Review, redline, and coordinate negotiation of MSAs, DPAs, NDAs, Order Forms, and partner agreements

Work directly with customer legal and procurement teams to resolve contractual issues efficiently

Partner with Sales and Customer Success to structure deals aligned with internal policies and customer needs

Collaborate with Legal, Finance, Product, and Security to review and approve contract terms

Identify and escalate contractual risks appropriately using established playbooks

Improve and scale contracting processes, templates, and workflows

Support sales enablement on common contractual topics

Maintain accurate contract tracking, execution, and storage with strong version control

Triage and manage supplier/vendor contracts

Analyse contracting workflows to identify bottlenecks and drive improvements

Requirements: 

3+ years’ experience in contracts, legal operations, or similar

Experience in SaaS or high-growth environments

Strong understanding of commercial agreements, including data protection and IP

Confident working with Sales, Legal, and cross-functional teams

Highly organised and able to manage multiple priorities

Pragmatic and focused on outcomes over process for its own sake

Curious and motivated to improve systems and workflows

Benefits: 

At PortSwigger, we believe people should be paid what they’re truly worth — not just what we could get away with or what the market dictates. That’s why we pay generously above normal market levels, based on each person’s individual skills and contribution.

Our approach works: 95% of Swiggers say they’re mostly or completely satisfied with their pay and benefits.

Alongside a strong base salary, we offer share options and a comprehensive benefits package designed to support both your work and life.

Want to know more? Explore our reward philosophy.