Senior Software Engineer, Unified Platform – Platform Services

Company: DRW
Apply for the Senior Software Engineer, Unified Platform – Platform Services
Location: London
Job Description:

Overview

As a Senior Software Engineer at DRW, you will own and deliver core platform services that power our Unified Platform. You’ll translate high-level requirements into scalable solutions, balancing reliability, performance, and maintainability. You’ll work across languages and architectures, evolving legacy code and enabling rapid feature delivery. You’ll collaborate with cross-functional teams to shape platform strategy and participate in production support. This role offers impact through building scalable infrastructure that accelerates business decisions.

Responsibilities

  • Architect and deliver complex features end-to-end with minimal oversight
  • Turn high-level requirements into solutions, drawing on a deep understanding of the business
  • Maintain a constant focus on testing, reliability, scalability, and maintainability
  • Design systems, model data, and write code across a variety of languages and technologies
  • Evolve legacy code alongside greenfield development
  • Learn and promote new technologies with a focus on best practices
  • Engage in on-call and production support activities
  • Contribute to system and architecture design discussions
  • Challenge ideas and participate in defining the path forward

Key requirements

  • 7+ years of server-side development experience in Java, Ruby, Python, Clojure, or C#
  • Strong understanding of system and architecture design principles, especially distributed systems
  • Ability to own projects, define requirements, and lead their development
  • Excellent problem-solving skills, with the capacity to work on both software development and support tasks
  • Strong communication and interpersonal skills
  • strong communication
  • problem-solving
  • ownership of projects
  • Java, Ruby, Python, Clojure, or C#
  • distributed systems design
  • IAM concepts (RBAC/ABAC, OAuth 2.0/OIDC, SCIM)

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Posted: November 6th, 2026