CareerPlan

Senior Software Engineer, Web

UKFull-time2026-10-09 → 2026-11-08
Hybrid

Core

Design, implement, extend, and maintain web software functionality for high-volume market-data websites and exchange-related systems.

Role type

Senior full-stack software engineer (market data)

Builds

End-to-end web solutions spanning frontend visualizations, backend APIs, and SQL database schemas

Domain

Financial technology / Market data

Deliverable

production ML models | product features

Required skills

Python, JavaScript, Django, React, NextJS, ExtJS, SQL, PostgreSQL, Linux/UNIX, HTML5, CSS3, unit testing, full-stack testing

Preferred skills

UI/UX design, project management, mentoring

Technologies

Django, React, NextJS, ExtJS, PostgreSQL, Apache, Linux

Responsibilities

Design and implement web software for high-volume market-data systems; Build frontend visualizations and backend APIs; Create automated unit tests and perform full-stack testing; Mentor software engineers; Act as project manager for multi-party features; Create technical specifications and customer documentation

Seniority

Senior, hands-on IC with mentorship responsibilities