Job Description

Posted 2 hours ago

IntaPeople are helping a fintech scale up in Cardiff City Centre to find a Senior Golang Software Engineer to join a small multidisciplinary team. You will design and build large-scale calculation services that powers their core platform.

This is a hybrid role with 3 set days in the office per week.

About you:

This person will be a subject matter expert for Golang within the company.  They have some Golang capabilities in the team already, so this person will expand on that as well as coach and mentor juniors and mid-level engineers on their Golang knowledge.

You’ll have experience building scalable backend systems, along with a solid understanding of data processing, performance optimisation, and system design

This is a highly regulated industry so a background in financial services or similar would be beneficial.

About the role:

Design and build high-performance services using Go (Golang)

Develop and optimise large-scale financial calculation engines

Build systems that handle and reconcile high volumes of capital, positions, and holdings accurately

Design systems with scalability, reliability, and low latency in mind

Work with complex, high-volume datasets and portfolio logic

Collaborate closely with frontend and backend teams to integrate services

Contribute to system design, performance improvements, and infrastructure decision

Benefits

25 days holiday (plus bank holidays), increasing with length of service

Access to our employee share incentive scheme

Extra day off for your birthday 

Hybrid / flexible working policy

Private medical insurance and Death-in-service benefit

Defined contribution pension scheme

‘Apply now’ to be considered or email a copy of your CV to set up a confidential chat (url removed)