Senior Software Engineer

London Stock Exchange; Nottingham; On-site; GBP 85,000 - 120,000; Full time

Job summary

London Stock Exchange is seeking a Senior Software Engineer in the FX group. You will collaborate across the organisation to craft and implement the technical strategy for a set of engineering products, focusing on robust software solutions and AI-driven improvements.

You will lead design and epic planning, mentor peers, and drive delivery with Architects, Product, and QA. Strong C++ experience and a track record of handling complex challenges are essential.

Qualifications

• Strong experience in software development and delivery.
• Proficiency in at least one programming language (C++ preferred).
• Experience with GitLab CI or AWS equivalents.
• Experience with Terraform/Helm, Kafka, Azure PaaS or Kubernetes is a plus.

Responsibilities

• Collaborate across the organisation to implement technical strategy for FX engineering products.
• Lead design, epic planning, and break work into stories with Product and QA.
• Advise on design and implementation as a domain expert.
• Deliver high-quality solutions and mentor team members.

Skills

C++

Java

Software development

Technical leadership

Tools

GitLab CI

REST

WebSocket

Terraform

Helm

Kafka

Azure PaaS

Kubernetes

Redis

SQL Server

Job description

• The successful candidate will collaborate with colleagues across the organisation to build and implement the technical strategy for a set of Engineering Products within our FX group
• They will ensure business requirements are applied and lean on their experience of software engineering and development lifecycles to lead change in exciting software challenges and customer solutions
• The Workflows Engineering team are recruiting a C++ Senior Software Engineer to play a crucial role in our organisation
• The successful candidate will become part of an engineering team addressing complex challenges and taking these to resolution
• This provides a phenomenal opportunity for individuals who enjoy solving a variety of problems and who relish the chance to lead the resolution of exciting and new challenges on a regular basis
• In an era of rapidly evolving AI capabilities, we’re seeking engineers who bring experience with established development tools and technologies, alongside the vision and ambition to integrate them into modern, AI-first ways of working and delivering value
• Act as a subject matter expert, advising on design, development, and implementation
• Deliver high-quality solutions through expert coding and tooling
• Own workload while fostering an open, inclusive team culture
• Serve as a domain point of contact, with deep expertise and awareness of cross-domain dependencies
• Align work to technology/domain strategy, contributing where relevant
• Build understanding of the market and LSEG's commercial position
• Lead projects with minimal direction, supporting team delivery and delegating as needed
• Partner with architects to design and implement solutions
• Lead design and Epic planning, breaking work into stories with Product and QA
• Apply and adapt engineering patterns to deliver robust solutions
• Build strong stakeholder relationships across teams and external partners
• Communicate complex technical concepts clearly to different audiences
• Continuously develop technical and industry expertise (e.g. certifications)

Strong experience in software development and deliveryStrong proficiency in at least one programming language (C++ preferred; Java/others a plus)GitLab CI (or AWS equivalents)Exposure to one or more of: Business/Technical Analysis, QA, Delivery Management, or Emerging Tech & GovernanceSQL (Oracle / SQL Server)REST / WebSocketExperience in 3+ of:Terraform / HelmKafka (event-driven messaging)Azure PaaS (Event Hub, Azure SQL, Kubernetes, Azure Cache, etc.)Basic understanding of trading systems and financial marketsRedisFamiliarity with financial messaging protocols (preferably FIX)