Senior Software Engineer

Role description

Senior Software Engineers (Level 1 & Level 2)
Portsmouth (Hybrid – ~1 day per week in the office)

Build the Future of Payments with AI at the Core
HireQ Talent is partnering with a rapidly scaling international tech business entering a transformational growth phase. Already operating at global scale, the company is now investing heavily in greenfield development, including the creation of a next‑generation payment platform to support its expanding international operations.

At the heart of this evolution is the adoption of agentic AI, enabling smarter automation, enhanced decision‑making, and more intelligent, adaptive systems across their platform.

They’re now hiring two Senior Software Engineers to play a critical role in this journey:

Senior Software Engineer (Level 1)

– up to £75k

Senior Software Engineer (Level 2)

– up to £85k

This is a unique opportunity to combine cutting‑edge AI, fintech innovation, and large‑scale engineering, all while helping shape brand‑new systems from the ground up.

What You’ll Be Doing
You’ll help design, build, and scale the next generation of the platform:

Engineer greenfield solutions, including a brand‑new global payments platform

Work on systems leveraging agentic AI for automation and optimisation

Design and deliver scalable, high‑performance applications end‑to‑end

Contribute across the full stack using modern frameworks and cloud technologies

Tackle complex challenges across distributed, high‑volume systems

Drive improvements in performance, scalability, and resilience

Collaborate with product, data, and engineering teams to deliver impactful features

Support and mentor other engineers (particularly at Level 2)

Influence technical direction and architecture decisions

You’ll be working within a modern, cloud‑first ecosystem:

React

C# / ASP.NET

SQL

Distributed systems & scalable architecture

Exposure to AI‑driven / agent‑based systems

What They’re Looking For

Strong experience building scalable, production‑grade applications

Comfortable working across the full stack

Experience or interest in AI‑driven systems or intelligent automation

Ability to take ownership and deliver autonomously

A problem‑solving mindset with a focus on quality and performance

Strong collaboration and communication skills

Leadership and mentoring experience (especially for Level 2)

This is more than just another engineering role, it’s a chance to work at the intersection of AI, fintech, and global‑scale platforms.

Be part of building a brand‑new international payments platform

Work with agentic AI and modern, evolving technologies

Major investment in greenfield projects and innovation

Join at a key moment in the company’s growth journey

A culture that values ownership, ideas, and technical excellence

Build systems that operate at global scale

Competitive salary (Level 1 up to £75k | Level 2 up to £85k)

Equity in a scaling business

Modern kit + home office support

Ready to Build What’s Next?
If you’re excited by AI‑powered systems, greenfield development, and building impactful financial technology at scale, this is your opportunity.

#J-18808-Ljbffr