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# Application Modernisation Consultant (Mainframe, Gen, COBOL, Java, .NET)

- **Company:** Txp.
- **Location:** Birmingham, UK
- **Contract:** Permanent contract
- **Skills:** Java (Programming Language), .NET Framework, Data Analysis, Microsoft Azure, Batch Processing, Customer Information Control System (CICS), Cloud Computing, COBOL (Programming Language), Databases, Continuous Integration, IBM DB2, DevOps, Github, Design of User Interfaces, Job Control Language (JCL), Interactive System Productivity Facility (ISPF), Mainframes, Online Transaction Processing, Software Engineering, Scripting, Enterprise Software Applications, Spring-boot, Containerization, AngularJS, Legacy Systems, Jenkins
- **Published:** October 13, 2026
- **Apply:** https://www.careerboard.com/gb/en/find-jobs-in-United-Kingdom/-BCE718492067256D6E/

## About the Role

We're interested in hearing from technology professionals who have experience in application modernisation, migration, conversion or platform transformation projects.

You'll bring experience in some of the following:

 * Cobol, CICS, IMS-DC and DB2 environments
 * Mainframe technologies and tooling including ISPF, SCLM, SPUFI and JCL
 * Java, Spring Boot, .NET, Angular or cloud-native technologies
 * Legacy application development and support
 * Application migration, re-platforming or modernisation programmes
 * Automation tooling, Scripting or development
 * CI/CD and DevOps tools such as Azure DevOps, Jenkins or GitHub Actions

Most importantly, you'll be a strong problem solver who enjoys tackling complex technical challenges and working collaboratively to deliver successful client outcomes.

## Description

At TXP, we're specialists in solving complex technology challenges. As demand for Legacy modernisation continues to grow, we're expanding our team and are looking for an experienced Legacy Conversion Consultant to support major application transformation programmes across both public and private sector clients.

This is a unique opportunity to combine deep technical expertise with innovative automation technology, helping organisations move away from Legacy platforms and embrace modern architectures.

You'll work with TXP's proprietary migration tooling to analyse, convert and validate enterprise applications, while helping shape the future of our conversion methodologies and automation capabilities.

What you'll be doing
As a Legacy Conversion Consultant, you'll play a key role in delivering complex migration and modernisation projects, including:

 * Analysing and assessing Legacy applications, primarily developed in Gen.
 * Executing application migrations using TXP's automated conversion tooling.
 * Supporting the migration of applications to:
 + Native Cobol environments (CICS, IMS-DC and DB2)
 + Modern platforms including Java, Spring Boot, .NET, Angular and cloud technologies
 * Defining migration approaches for databases, online transactions, batch processing and user interfaces.
 * Validating converted applications to ensure quality, performance and functional equivalence.
 * Collaborating with architects and technical teams to develop migration strategies and delivery roadmaps.
 * Supporting proposals, Statements of Work and technical solution design activities.
 * Contributing to the continuous improvement of TXP's migration tooling and delivery methodologies.