Full Stack Software Engineer

Full Stack Software Engineer

Location: London (5 days onsite)

Salary: £70,000-£140,000 + Bonus + Benefits

We’re working with a leading financial markets firm looking to hire multiple Full Stack Software Engineers to help build and support business-critical front-office applications.

This is an opportunity to work across the full software lifecycle, owning features from initial requirements through to production, while collaborating closely with end users in a fast-paced engineering environment.

This role is ideal for engineers who enjoy variety, ownership and solving complex technical challenges rather than being confined to a single part of the stack.

What you’ll be doing

• Building full stack applications used by front-office teams.
• Designing and delivering features from concept through to production.
• Working across frontend, backend and database technologies.
• Supporting production applications and resolving technical issues.
• Investigating incidents, performing root cause analysis and improving application reliability.
• Collaborating closely with product teams and business users to deliver high-impact solutions.

What we’re looking for

• Commercial experience as a Full Stack Software Engineer.
• Happy working across frontend and backend technologies.
• Strong engineering fundamentals and system design skills.
• Experience supporting production applications.
• Comfortable taking ownership throughout the software lifecycle.
• Experience working within financial services or other business-critical environments is highly desirable.
• Exposure to modern cloud technologies and containerised environments is beneficial.

Technical Environment

Experience with some of the following is beneficial (the environment is Python/React.js but we’re open to candidates from a variety of tech backgrounds).

• Python
• React
• TypeScript
• Go
• Java
• C++
• C#
• SQL
• Kubernetes
• Cloud platforms

You don’t need experience with every technology. Strong engineering ability and a willingness to learn are valued more than matching a specific tech stack.

What’s on offer

• Join a growing engineering team
• Broad technical ownership across a variety of business-critical systems.
• Modern engineering practices, including AI-assisted development.
• Excellent career progression opportunities.
• Competitive salary, bonus and comprehensive benefits package.