Senior Software Engineer

Tempest Vane Partners; England; On-site; GBP 70,000 - 90,000; Full time

Benefits offered by this job

Ownership of impactful systems

Exposure to modern architecture

Competitive compensation

Job summary

A leading investment firm in the United Kingdom is seeking a Mid-Senior Level Engineer to design and build distributed cloud-native services integral to investment workflows. This role offers competitive compensation and an environment that fosters clean design and scalability. Ideal candidates will have over 8 years of experience, strong expertise in C# or Java, Python proficiency, and familiarity with cloud technologies, preferably AWS. Experience in financial markets is a plus but not required.

Qualifications

• 8+ years of experience building and maintaining production systems.
• Deep knowledge of C# or Java and strong experience in Python.
• Experience with cloud infrastructure (preferably AWS).

Responsibilities

• Design and build distributed, cloud-native services for equity workflows.
• Develop high-performance backend systems focused on reliability.
• Build APIs using gRPC and contribute to web interfaces in React.

Skills

C#

Python

Java

gRPC

React

AWS

Tools

Snowflake

ClickHouse

Job description

Our client is a globally recognised investment firm where engineering is treated as a strategic advantage. Their equity platform is powered by a proprietary technology stack built in-house and used directly by investors to research ideas, construct portfolios and manage risk in real time.

Engineers sit close to the problem space, solving complex data, performance and scale challenges rather than working on generic internal tooling.

London, England, United Kingdom

What You’ll Get

• Ownership of systems that directly influence investment decisions
• Exposure to modern, cloud-native architecture in a high-performance environment
• The ability to work across the full stack, from backend services to user-facing applications
• A culture that values clean design, scalability and engineering judgement
• Competitive compensation aligned to impact, not tenure

What You’ll Do

• Design and build distributed, cloud-native services supporting large-scale equity workflows
• Develop high-performance backend systems using C#, Python and Go, with a strong focus on reliability and throughput
• Build and evolve APIs and service-to-service communication using gRPC
• Contribute to modern web interfaces built with React, used daily by investment professionals
• Work with large, complex datasets using analytical and columnar data stores such as Snowflake and ClickHouse
• Collaborate closely with users to iterate quickly while maintaining production-grade standards

What You’ll Need

• Significant experience building and maintaining production systems (8+ years)
• Deep knowledge of an object-oriented language (C# or Java) and strong Python experience
• Experience working with cloud infrastructure (AWS preferred)
• Comfort designing scalable systems and making architectural trade-offs
• Financial markets experience is beneficial but not essential, curiosity and problem-solving matter more
• A pragmatic, low-ego approach to engineering in a collaborative environment

Seniority level

• Mid-Senior level

Employment type

• Full-time

Job function

• Information Technology