Full Stack Developer (Expert) – Java & Cloud Migration

Are you a seasoned technology professional who loves solving complex problems leading teams and turning legacy systems into modern high-performing solutions Were looking for a Full Stack Developer (Expert) to help drive an exciting mainframe modernisation initiative migrating legacy applications into modern Java and cloud-based environments.

This is your opportunity to combine technical expertise strategic thinking Agile leadership and cloud innovation while working on complex enterprise-level systems.

What Youll Be Doing:

• Lead the modernisation and migration of legacy mainframe applications to modern Java-based solutions.
  
• Help design and refine migration strategies for converting COBOL and PL/1 applications into Java.
  
• Analyse existing systems identify dependencies assess risks and develop practical migration plans.
  
• Work with cloud and infrastructure teams to map legacy components to suitable cloud services.
  
• Drive the delivery of complex projects keeping timelines budgets quality and business requirements on track.
  
• Lead and support Agile feature teams encouraging collaboration transparency and continuous improvement.
  
• Work closely with stakeholders Product Owners developers testers and external suppliers to turn business requirements into workable solutions.
  
• Oversee system integration testing parallel runs implementation and quality assurance.
  
• Ensure solutions meet performance security data integrity and compliance requirements.
  
• Troubleshoot complex technical issues and provide second-level support when required.
  
• Champion DevOps automation modular architecture and efficient development practices.
  
• Keep documentation up to date and share knowledge through coaching training and knowledge-transfer sessions.
  
• Monitor migrated applications and continuously improve cloud performance cost and efficiency.
  

Youll need a strong technical foundation combined with the confidence to guide teams and make important architectural and delivery decisions.

Essential technical experience:

• Strong Java development skills including object-oriented programming multithreading collections generics and exception handling.
  
• Extensive experience with Java frameworks particularly Spring Spring MVC and Spring Boot.
  
• At least 10 years experience in IT Software Development or DevOps with 10 years in a relevant programming language.
  
• Strong project delivery and project management capabilities.
  
• Experience with Agile methodologies and managing work across multiple Agile teams.
  
• Knowledge of system integration requirements analysis technical planning and solution design.
  
• Experience coordinating development and support environments.
  
• Proficiency in Agile tools such as Jira Confluence X-Ray and Bitbucket.
  
• Experience with DevOps transition management and problem incident and change management.
  
• Resource planning budget management and technical team leadership experience.
  
• Previous exposure to a finance function either directly or through supporting a finance-focused team.
  

Additional technical experience that will give you an edge:

• AWS or Azure cloud architecture and services.
  
• Serverless development including AWS Lambda.
  
• Kafka streaming services and publish/subscribe (Pub/Sub) technologies.
  
• Docker Kubernetes and OpenShift.
  
• Mainframe technologies and databases including COBOL PL/1 DB2 IMS and J2EE.
  
• Mainframe-to-Java code conversion tools such as Astadia Heirloom or BlueAge.
  
• Cloud-based architecture for legacy application migration.
  
• Testing frameworks such as JUnit or TestNG along with automated and integration testing.
  
• Hibernate or other ORM frameworks.
  
• Modern front-end technologies such as Angular React or .
  
• Performance optimisation debugging high availability and security best practices.
  

Qualifications & Certifications

• A relevant IT Business or Engineering qualification.
  
• At least one recognised advanced Scrum or Agile certification such as Professional Scrum Master II Advanced Certified ScrumMaster Certified SAFe Advanced Scrum Master Leading SAFe Agilist or Scaled Professional Scrum.
  
• A Scrum Master certification and project management qualification would be advantageous.
  

• Work on a complex global-scale technology modernisation initiative.
  
• Collaborate with international teams and experienced technology professionals.
  
• Enjoy a flexible working model combining remote and on-site work.
  
• Benefit from a flexible working arrangement of 1960 hours over a 12-month period.
  
• Be part of a fast-paced energetic environment that values innovation and teamwork.
  
• Gain exposure to modern cloud technologies enterprise architecture and large-scale migration projects.