Senior Software Developer

 

Description:

Senior Software Developer – Hybrid (London)

A software company in London is looking for a Senior Developer to join their engineering team. They operate in a fast-paced environment where engineers prioritise quick delivery, practical problem-solving, and real-world impact over perfect code. It’s an outcome-driven culture with plenty of autonomy, where developers take ownership across the full lifecycle of their work.

What You’ll Work On

  • Building integrations with new data and liquidity sources using advanced web-scraping and reverse-engineering techniques.
  • Developing and maintaining low-latency, real-time data feeds to support internal strategies.
  • Improving system visibility and observability to help identify integration issues and areas for optimisation.
  • Working as part of an agile team with a flexible, evolving roadmap driven by new information and opportunities.
  • Taking full responsibility for software from design through to development, testing, review, deployment, and production support.

Key Responsibilities

  • Design & Deliver Features: Build features aligned with business goals, writing high-quality, maintainable, and performant code.
  • Code Quality: Review and test contributions from peers to ensure functionality, maintainability, and performance standards.
  • Production Ownership: Support services in production, ensuring stability and responding quickly to issues.
  • Cross-Team Collaboration: Work closely with fellow engineering teams, as well as internal stakeholders, to design and deliver effective technical solutions.
  • Out-of-hours support as part of a rotating schedule.

Tech Stack

  • Languages: Python
  • Messaging: RabbitMQ, Kafka
  • Storage: PostgreSQL, Redis
  • Environment: Linux
  • Observability: OpenTelemetry, Prometheus, Grafana, Zabbix
  • Cloud: AWS

Requirements

Must-haves

  • Strong software development background with solid Python experience.
  • Degree in Computer Science or a similar numerical subject.
  • Excellent communication skills with the ability to explain complex ideas clearly.
  • Strong decision-making skills, particularly around trade-offs in architecture and implementation.
  • Experience with web-scraping / reverse-engineering, including navigating bot-protection tooling.

Nice-to-haves

  • Experience building event-driven systems.
  • Comfortable working in Linux/Unix environments.
  • Experience contributing to cloud migration projects (AWS ideal).

Organization Open Source
Industry IT / Telecom / Software Jobs
Occupational Category Senior Software Developer
Job Location London,UK
Shift Type Morning
Job Type Full Time
Gender No Preference
Career Level Experienced Professional
Experience 3 Years
Posted at 2026-04-06 4:00 pm
Expires on 2026-05-21