Senior Systems Developer

Gainham Recruitment
Full-time , , United Kingdom, , , United Kingdom IT & Technology
Posted:
March 02, 2026
Location:
, , United Kingdom, , , United Kingdom, United-Kingdom

Job Description

Senior Systems Developer

A dynamic global Fintech company is seeking a Senior Systems Developer to join their team. This is a fully remote role and the position is open to both contractors and PAYE candidates. It is a full time role and the firm is based both in and out of the UK.

Hours: Monday - Friday 9am - 5.00pm

Salary Range: £60,000 - £80,000 per annum

Responsibilities to include:

  • Design and implement large-scale, high throughput event-driven systems for financial transaction processing and telecommunications infrastructure

Requirements:

  • Advanced proficiency in C programming, deep understanding of POSIX standards and system calls, expert level Linux / Unix
  • Extensive experience with TCP / IP socket programming
  • Experience with ISO 8583 message processing and codec implementation
  • Advanced Makefil development skills
  • Advanced proficiency in data structure impl...

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Job Overview

Job Type: Full-time
Location: , , United Kingdom, United-Kingdom
Posted: March 02, 2026
Deadline: April 11, 2026