2322 IT & Software Developer jobs in the UK
Requirements
Must:
- Expert-level Python developer (min. 5+ years professional experience)
- Strong experience building high-performance and low-latency applications
- Strong understanding of asynchronous programming, multiprocessing, and performance optimisation
- Experience managing and improving existing codebases
- Experience with Redis and general database performance considerations
- Competent with Azure cloud environments (VMs, deployment, monitoring, etc.)
- Comfortable working independently, making architectural decisions, and maintaining high code quality
- Excellent problem-solving skills and attention to detail
- Desirable Skills: Experience with algorithmic trading or market data systems
- Familiarity with Interactive Brokers TWS or other brokerage APIs
- Experience with distributed systems, message queues, or event-driven architectures
- Background in financial markets or fintech
Responsibilities
- Maintain, extend, and optimise an existing Python-based trading application
- Add new features and improve current capabilities with a focus on performance, reliability and clean architecture
- Work with Redis, Azure VMs, and Anaconda environments
- Ensure the application runs efficiently and accurately, including tasks requiring millisecond-level precision
- Troubleshoot production issues and improve system observability
- Collaborate directly with the founder to shape technical direction and priorities
- Integrate or work with market data and order-routing systems
- Be available for system monitoring and troubleshooting during key market hours (8pm to 9pm)
Description
We are looking for an experienced Senior Python Software Engineer to take ownership of an established trading-related application and drive its ongoing development. This is an excellent opportunity for someone who enjoys autonomy, technical responsibility, and working on low-latency, high-performance applications. We offer a competitive salary negotiable based on experience, a hybrid work model primarily remote with some in-office collaboration days each month, and a yearly bonus based on company performance. You will have the chance to take significant ownership of a live, production-grade system in a lean environment with minimal bureaucracy, allowing for direct impact.
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You can find System Engineer salaries in the UK here.
How many System Engineer jobs are in the UK?
Currently, there are 2322 System openings. Check also: Linux jobs, Windows jobs, Network jobs - all with salary brackets.
Is the UK a good place for System Engineers?
The UK is one of the best countries to work as a System Engineer. It has a vibrant startup community, growing tech hubs and, most important: lots of interesting jobs for people who work in tech.
Which companies are hiring for System Engineer jobs in the UK?
Bluefruit Software Limited, Mas & Pas Limited, Ctrl Alt, Floor Giants, United Oilseeds Marketing Ltd, Interface, Accenture among others, are currently hiring for System roles in the UK.
The company with most openings is Experis as they are hiring for 86 different System Engineer jobs in the UK. They are probably quite committed to find good System Engineers.
The company with most openings is Experis as they are hiring for 86 different System Engineer jobs in the UK. They are probably quite committed to find good System Engineers.