Senior Python Backend Engineer — Real-Time Data for Trading

Mustard Systems Ltd.; Greater London; Hybrid; GBP 95,000 - 130,000; Full time

Benefits offered by this job

Hybrid working environment

Competitive salary with bonus

Enhanced pension matching

Health insurance and life assurance

Sabbatical after five years

33 days annual leave

Job summary

Mustard Systems Ltd. in London builds data-driven trading software using Python, Go and JavaScript/TypeScript to deliver real-time insights. The role emphasizes fast delivery, ownership of features, and collaboration with traders and quants to solve real business problems.

You will design and implement low-latency data feeds, enhance system visibility, and work across teams in an agile environment. Hybrid work and a competitive compensation package are offered.

Qualifications

• Strong background in software development with Python experience.
• Degree in Computer Science or numerical subject from a top university.
• Excellent communication skills for conveying complex ideas to technical and non-technical audiences.
• Good decision-making with trade-offs in implementation and architecture.
• Experience with web scraping and reverse engineering, including anti-bot tooling.
• Minimum 3 years of software development experience.

Responsibilities

• Design and build features aligned with business goals and deliver high-quality code.
• Review and test code to ensure functionality, performance, and quality.
• Own your team’s software in production, maintaining stability and addressing issues.
• Collaborate with other development teams and traders to design optimal solutions.
• Participate in out-of-hours support for software systems.

Skills

Python

Web scraping

Reverse engineering

Go

JavaScript/TypeScript

Linux

Communication skills

Decision making

Education

Bachelor's degree in Computer Science or numerical subject

Tools

RabbitMQ

Kafka

PostgreSQL

Redis

OpenTelemetry

Prometheus

Grafana

Zabbix

Job description

Mustard Systems Ltd. in London builds data-driven trading software using Python, Go and JavaScript/TypeScript to deliver real-time insights. The role emphasizes fast delivery, ownership of features, and collaboration with traders and quants to solve real business problems.

You will design and implement low-latency data feeds, enhance system visibility, and work across teams in an agile environment. Hybrid work and a competitive compensation package are offered.