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Principal Kotlin Engineer

London, Greater London, South East, England

Apply by 31 Jul 2025

£80000 - £120000 per annum

Job Ref.: BH-54485

Job Description


We are seeking a highly skilled Senior Software Engineer with strong expertise in Java and Kotlin to join our global investment bank as we embark on a major technology transformation program. This is a unique opportunity to work at the heart of a modernization initiative that will reshape our core platforms, enhance system resilience, and enable scalable innovation.

Key Responsibilities:
  • Design, develop, and maintain robust, scalable backend services using Java and Kotlin
  • Apply Test Driven Development (TDD) principles to ensure high code quality and test coverage
  • Collaborate with cross-functional teams to shape system architecture and drive engineering excellence
  • Translate complex technical concepts for both technical and non-technical stakeholders
  • Contribute to ideation sessions, design reviews, and planning discussions to solve real business problems
  • Engage in continuous integration and deployment processes, contributing to DevOps practices as needed
Qualifications:
  • 5+ years of professional experience in Java development
  • Proven commercial experience with Kotlin in production environments
  • Familiarity with Docker, Kubernetes, or other DevOps tools is a plus
  • Strong understanding of software engineering principles, design patterns, and agile methodologies
  • Excellent communication skills with the ability to present ideas clearly and concisely across teams and business units
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