Senior Software Engineer

Senior Software Engineer – Hybrid (1–2 days per week onsite)

The Opportunity

An opportunity to join one of the most exciting early-stage AI companies operating at the intersection of enterprise SaaS, data, and corporate travel.

The client is the AI-powered Mission Control for Corporate Travel — enabling global enterprises to manage $50M–$1B travel budgets with real-time data, accountability, and cost optimisation.

Backed by Series A funding and signing enterprise contracts bi-weekly (mid-to-high six figures on 3-year deals), this is a rare opportunity to join at just 25 employees — right at the inflection point of serious scale.

The Why? (Top 3 Reasons to Join)

1️⃣ Massive Impact at the Perfect Time

With just 25 employees split between Europe and the US, you’ll join at a stage where every line of code materially impacts enterprise customers managing over $4B in spend.

2️⃣ Enterprise Traction, Startup Energy

Trusted by world-leading companies representing over $4T in market value. Contracts are closing every two weeks. Product-market fit is proven — now it’s about scale.

3️⃣ Real Ownership, Real Visibility

You’ll own features end-to-end and demo your work to the entire company every Friday. Your contributions will be visible, valued, and directly tied to growth.

The What..

The client is looking for a Senior Software Engineer (4–7 years’ experience) to join their founding engineering team.

This is for builders.

  • People who thrive in ambiguity.
  • People who enjoy shipping fast.
  • People who want ownership, not tickets.

You’ll design, build, and deploy full-stack features across:

  • Frontend
  • Backend
  • Infrastructure

You’ll work closely with product and leadership to scale a high-performance B2B SaaS platform supporting enterprise clients across travel, fintech, and global corporates.

What They’re Looking For

Seniority

  • 4–7 years’ experience in full-stack software engineering within B2B SaaS environments.
  • Experience
  • Startup experience — comfortable with velocity and ambiguity
  • Experience building from scratch
  • Travel tech or fintech experience preferred

Technical Skills

  • Strong full-stack capability
  • React / TypeScript (frontend)
  • Node.js or Python (backend)
  • Experience with data pipelines, ETL, and analytics systems
  • Comfortable owning features autonomously

Who Thrives Here

  • Autonomous builders
  • Engineers who enjoy demoing their work
  • Individuals comfortable self-managing their workload
  • People excited by fast growth and real responsibility

And finally... Who are we?

FORT – Future of Recruiting Technologists is a specialist technical search consultancy connecting exceptional engineers with transformative technology businesses.

We go beyond skills — focusing on ambition, trajectory, and cultural alignment to ensure long-term success for both candidate and client.

Our values are built on:

Continual Development. Compassion. Consistency.

Job Details

Company
FORT
Location
Greater London, England, United Kingdom
Posted