Principal Kotlin Engineer

ZipRecruiter; London; On-site; GBP 70,000 - 100,000; Full time

Job summary

Join a global investment bank as a Senior Software Engineer, contributing to a modernization initiative. This role involves designing scalable backend services using Java and Kotlin, with a focus on TDD and DevOps practices. The ideal candidate has over 5 years of experience and strong communication skills.

Qualifications

• 5+ years of professional experience in Java development.
• Proven commercial experience with Kotlin in production environments.
• Strong understanding of software engineering principles and design patterns.

Responsibilities

• Design, develop, and maintain robust, scalable backend services using Java and Kotlin.
• Collaborate with cross-functional teams to shape system architecture.
• Engage in continuous integration and deployment processes.

Skills

Java

Kotlin

Test Driven Development (TDD)

DevOps

Agile Methodologies

Tools

Docker

Kubernetes

Job description

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