Unix/Linux Developer – Application Modernization

Capco is looking for a Unix/Linux Developer to support a major application modernization initiative focused on upgrading legacy applications, Unix scripts and their supporting technology.

This is a hands-on development role where you’ll modernize and refactor legacy Unix scripts, build automation and help applications transition successfully into modern containerized environments. You’ll work across Unix/Linux, Docker, OpenShift, Kubernetes and AWS, ensuring scripts and application components continue to function reliably as the underlying technology evolves.

You’ll work closely with development and technology teams to solve modernization challenges, improve automation and support the successful migration of established applications to more modern, maintainable environments.

• →Upgrade, refactor and modernize legacy Unix scripts and associated application components to support wider application modernization.
• →Develop and maintain automation using Bash, PowerShell, Python and Groovy, reducing repetitive operational tasks and improving delivery efficiency.
• →Support the containerization and deployment of applications using Docker and Docker Swarm across OpenShift Container Platform (OCP) and Kubernetes environments.
• →Work with AWS and DevOps tooling to support application builds, deployments and migrations into modern environments.
• →Develop and troubleshoot solutions across Linux and Windows environments, working with application technologies including JBoss, Apache Tomcat, Nginx and HAProxy.

• 5–6 years of Unix/Linux development experience, including experience upgrading and refactoring legacy Unix scripts as part of application modernization.
• Hands-on experience with Docker and containerization, including application deployment to OpenShift Container Platform (OCP) and Kubernetes clusters.
• Experience working with AWS and DevOps practices to support application development, deployment and modernization.
• Proficiency in scripting and automation using Bash, PowerShell, Python and Groovy.
• Experience working across Linux environments including RHEL, CentOS and Ubuntu, alongside MS Windows host environments.

• Experience supporting Java application modernization or migrations involving legacy Java 6/8 applications.
• Experience working with application servers and technologies including JBoss, Apache Tomcat, Nginx and HAProxy.
• Experience with Docker Swarm alongside Docker and Kubernetes.
• Experience troubleshooting application dependencies and script-related issues during complex modernization or migration programmes.
• Experience supporting application development or modernization within financial services or other complex enterprise environments.

We’re committed to making our recruitment process accessible and straightforward for everyone. If you need any adjustments at any stage, just let us know – we’ll be happy to help. We value each person’s unique perspective and contribution. At Capco, we believe that being yourself is your greatest strength. Our #BeYourselfAtWork culture encourages individuality and collaboration – a mindset that shapes how we work with clients and each other every day.

At Capco, we use artificial intelligence (AI) tools to support and enhance several parts of talent acquisition. This includes using AI-enabled features within LinkedIn to help source potential candidates, speeding up routine recruitment communications such as emails and creating compelling and brand-aligned job postings that accurately reflect role requirements, and AI-scheduling applications to improve the efficiency of interview coordination.

AI is used as a support tool only. All hiring decisions are made by talent acquisition and hiring teams.

We are currently hiring for this role due to an existing or newly created vacancy within our organization. This position is open as part of our ongoing business needs, and we are actively reviewing applications to fill this role with a qualified candidate who can make an immediate impact.