Full Stack Engineer (Capital Markets or Fintech)

Signify Technology; Greater London; On-site; GBP 90,000 - 130,000; Full time

Job summary

Signify Technology is partnering with a leading financial markets operator in London to hire a Senior Software Engineer for Web development. You will design and build full stack web solutions, from frontend visuals to backend APIs and SQL databases, owning features end-to-end.

The role emphasizes code quality, testing, automation, and strong UX, within a fast-paced, high‑traffic environment. You will mentor junior engineers, contribute to sprint planning and collaborate with stakeholders across

Qualifications

• 5+ years building high‑performance, data‑driven web applications.
• Experience with MVC frameworks, Django preferred.
• Comfortable working in a fast‑paced, deadline‑driven financial markets environment.
• Strong communicator able to work across technical and non-technical stakeholders.

Responsibilities

• Design and build full stack web solutions from front end visualisations through to backend APIs and SQL database implementation.
• Own features end to end, contribute to sprint planning and mentor junior engineers.
• Act as subject matter expert across one or more systems; focus on code quality, testing, automation and user experience.

Skills

High-performance web apps

MVC frameworks

Strong communicator

Tools

Django

Job description

Senior Software Engineer, Web, Global Exchange Operator

London 4x Days per week in office

We are working exclusively with one of the world's largest exchange operators, a business at the centre of global financial markets. They are looking for a Senior Software Engineer to join their web engineering team, building and maintaining the primary interface for command and control of three European equities venues, trade reporting and SI technology services. These are high-traffic, high-stakes systems handling millions of requests per day.

The Role

You will design and build full stack web solutions from front end visualisations through to backend APIs and SQL database implementation. This is a hands‑on senior role where you will own features end to end, contribute to sprint planning, mentor junior engineers and act as subject matter expert across one or more systems. The team cares deeply about code quality, testing, automation and user experience.

CSS3PostgreSQL andSQL, Apache, unit testing and full stack web testing

What They Are Looking For

• 5+ years building high‑performance, data‑driven web applications
• Experience with MVC frameworks, Django preferred
• Comfortable working in a fast‑paced, deadline‑driven financial markets environment
• Strong communicator able to work across technical and non-technical stakeholders