Senior Software Engineer — Build Scalable AI SaaS (Hybrid)
Senior Software Engineer — Build Scalable AI SaaS (Hybrid)

Senior Software Engineer — Build Scalable AI SaaS (Hybrid)

Full-Time 60000 - 80000 £ / year (est.) Home office (partial)
F

At a Glance

  • Tasks: Design, build, and deploy full-stack features for a cutting-edge AI SaaS platform.
  • Company: Join a fast-growing AI company transforming corporate travel management.
  • Benefits: Competitive salary, hybrid work model, and opportunities for professional growth.
  • Why this job: Make a massive impact in a small team and see your work valued every week.
  • Qualifications: 4–7 years in full-stack software engineering, preferably in B2B SaaS.
  • Other info: Dynamic startup environment with real responsibility and ownership.

The predicted salary is between 60000 - 80000 £ per year.

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)

  • 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. 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. 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
  • 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.

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.

Senior Software Engineer — Build Scalable AI SaaS (Hybrid) employer: FORT

Join a dynamic early-stage AI company where your contributions as a Senior Software Engineer will have a significant impact on enterprise clients managing substantial travel budgets. With a hybrid work model and a culture that values autonomy and innovation, you'll thrive in an environment that encourages ownership and rapid growth. This is a unique opportunity to be part of a small, agile team at the forefront of transforming corporate travel through cutting-edge technology.
F

Contact Detail:

FORT Recruiting Team

StudySmarter Expert Advice 🤫

We think this is how you could land Senior Software Engineer — Build Scalable AI SaaS (Hybrid)

Tip Number 1

Network like a pro! Reach out to people in your industry on LinkedIn or at tech meetups. A personal connection can often get you a foot in the door faster than any application.

Tip Number 2

Show off your skills! Create a portfolio or GitHub repository showcasing your projects. When you apply through our website, include links to your work so potential employers can see what you're capable of.

Tip Number 3

Prepare for interviews by practising common technical questions and coding challenges. We recommend doing mock interviews with friends or using online platforms to boost your confidence.

Tip Number 4

Follow up after interviews! A quick thank-you email can leave a lasting impression. It shows your enthusiasm for the role and keeps you on their radar as they make decisions.

We think you need these skills to ace Senior Software Engineer — Build Scalable AI SaaS (Hybrid)

Full-Stack Software Engineering
React
TypeScript
Node.js
Python
Data Pipelines
ETL
Analytics Systems
B2B SaaS Experience
Startup Experience
Ambiguity Management
Autonomous Work
Fast-Paced Development
Feature Ownership

Some tips for your application 🫡

Tailor Your CV: Make sure your CV reflects the skills and experiences that align with the Senior Software Engineer role. Highlight your full-stack capabilities, especially in React, TypeScript, Node.js, or Python, as these are key for us.

Craft a Compelling Cover Letter: Use your cover letter to tell us why you're excited about this opportunity. Share your passion for building scalable solutions and how your startup experience has prepared you for the fast-paced environment we thrive in.

Showcase Your Projects: Include links to any relevant projects or code samples in your application. We love seeing what you've built and how you approach problem-solving, so don’t hold back on sharing your work!

Apply Through Our Website: We encourage you to apply directly through our website. It’s the best way for us to receive your application and ensures you’re considered for this exciting opportunity to join our growing team.

How to prepare for a job interview at FORT

Know Your Tech Stack

Make sure you’re well-versed in the technologies mentioned in the job description, like React, TypeScript, Node.js, and Python. Brush up on your full-stack capabilities and be ready to discuss how you've used these technologies in past projects.

Showcase Your Problem-Solving Skills

Prepare to share specific examples of how you've tackled challenges in previous roles, especially in fast-paced environments. Highlight your experience with ambiguity and how you’ve thrived in startup settings, as this will resonate with the company’s culture.

Demonstrate Ownership

Since the role involves owning features end-to-end, come prepared to discuss instances where you took full responsibility for a project. Talk about how you managed your workload and delivered results, as this aligns with what they’re looking for in a candidate.

Engage with Their Mission

Familiarise yourself with the company's mission in corporate travel and AI. Be ready to discuss how your skills can contribute to their goals and how you see yourself making an impact in their growth journey. Showing genuine interest can set you apart!

Senior Software Engineer — Build Scalable AI SaaS (Hybrid)
FORT

Land your dream job quicker with Premium

You’re marked as a top applicant with our partner companies
Individual CV and cover letter feedback including tailoring to specific job roles
Be among the first applications for new jobs with our AI application
1:1 support and career advice from our career coaches
Go Premium

Money-back if you don't land a job in 6-months

>