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Senior Software Engineer, Web

London, United Kingdom💼 Full-time🗓 2026-07-08 → 2026-07-31

Core

Design, implement, and maintain high-performance web software handling millions of daily requests for market data and trading command/control interfaces.

Role type

Senior Software Engineer, Web

Builds

Full-stack web applications for financial market infrastructure and trading venues

Domain

Financial Technology / Market Infrastructure

Deliverable

production ML models | product features

Required skills

Python, JavaScript, Django, React, SQL, Linux, HTML/CSS, Unit Testing, Full-stack development

Preferred skills

MVC frameworks, Modern web standards, Apache, PostgreSQL, UI/UX design

Technologies

Python, JavaScript, Django, React, NextJS, ExtJS, HTML5, CSS3, Linux, Apache, PostgreSQL, SQL

Responsibilities

Design end-to-end full-stack solutions; Implement automated unit tests and resolve systemic issues; Mentor other engineers; Participate in sprint planning and peer code reviews; Write technical specifications and documentation; Support production operations and weekend testing.

Seniority

Senior, hands-on IC

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