Senior Software Engineer

TRIA; Greater London, Cheltenham; Hybrid; GBP 90,000 - 130,000; Full time

Benefits offered by this job

Greenfield project

Autonomy and ownership

Cloud-native tech exposure

Global engineering team

Architectural impact

Job summary

TRIA is seeking a Senior Developer to join a growing fintech team building a brand-new cloud-native trading platform. You will work in a highly collaborative global engineering function to design, develop and deliver advanced features using AWS, Terraform and .NET.

The role provides significant influence over architecture, engineering standards and technical direction, with hands-on coding across a greenfield stack and collaboration with PMs and leadership across the UK and global offices.

Qualifications

• Experience with cloud-native systems and AWS cloud technologies.
• Strong grasp of software architecture and design patterns.
• Experience contributing to technical strategy and architectural decisions.

Responsibilities

• Design, develop and deliver functionalities for a cloud-native trading platform.
• Help shape architecture, engineering standards and technical direction.

Skills

AWS

Terraform

.NET

Cloud architecture

Hands-on coding

Job description

Hybrid working - 1 day per month in London or Cheltenham

This is an exciting opportunity for a Senior Developer to join a growing financial technology business and play a key role in supporting a brand-new cloud-native trading platform from the ground up.

Working within a highly collaborative global engineering function, you'll help design, develop and deliver the functionalities for a next-generation financial trading product using modern technologies including AWS, Terraform and .NET. This is a greenfield environment where you'll have significant influence over architecture, engineering standards and technical direction.

You'll work closely with Product Managers, Engineers and Technical Leadership across the UK, Australia, Singapore, Canada and New York, contributing to strategic technology decisions while remaining hands‑on with development and cloud engineering.

This role would suit someone who thrives in a fast-paced, product‑focused environment, enjoys solving complex technical challenges and is passionate about building scalable trading technology in the cloud.

The right person will be a Developer / Senior Engineer with experience working within financial trading and must have foundational understanding capital markets, order lifecycles and trading interfaces.

As well as:

• Hands-on experience with AWS cloud technologies
• Experience using Terraform and Infrastructure as Code principles
• A strong understanding of software architecture, design patterns and scalable cloud‑native systems
• Experience contributing to technical strategy and architectural decision‑making
• A proactive and collaborative approach to problem solving

What's on offer

• Opportunity to work on a genuinely greenfield trading platform
• High levels of technical ownership and autonomy
• Exposure to modern cloud‑native technologies and architecture
• Collaborative global engineering environment
• Opportunity to influence architecture, engineering standards and product direction