1 to 25 of 76 Mainframe Developer Jobs in the UK

Social network you want to login/join with: Mainframe Developer, Warrington, Cheshire Client: Ascendion Location: Warrington, Cheshire Job Category: Other EU work permit required: Yes Job Views: 9 Posted: 09.06.2025 Expiry Date: 24.07.2025 Job Description: Job Title: Mainframe Developer Job Description: Seeking a seasoned Mainframe Developer with expertise in IBM DB2 and core mainframe technologies. Design, develop, test, and maintain high-performance mainframe applications using COBOL, IMS, and z/OS. Manage and optimize data with IBM DB2 and troubleshoot production issues to ensure system reliability. About Us: Ascendion is a More ❯

Join to apply for the Assembler Mainframe Developer role at BMC Software 3 days ago Be among the first 25 applicants Description and Requirements We are seeking a skilled Assembler Mainframe Developer to join BMC Software. In this role, you will be responsible for developing, troubleshooting … and debugging mainframe software solutions, primarily using Assembler and C. You will work on designing, coding, and resolving defects in complex software solutions, conducting code reviews, and collaborating with global teams and clients. Responsibilities include: Developing and delivering products using Assembler and C Designing, coding, and resolving defects in … supporting features and applications Working directly with clients on complex issues Mentoring team members Requirements: 8+ years of experience with IBM assembler coding and mainframe development Proficiency in 64-bit and 31-bit Assembler programming Experience with REXX, Python (plus) Knowledge of mainframe environments (TSO/ISPF, JCL More ❯

Endeavour Recruitment are looking for 3 Mainframe Developers to join our client in Dublin on a permanent basis. This is an excellent opportunity to join a leading financial client. The Mainframe Developer will be part of a team that is designing, developing, testing and implementing CLOAS applications. … Producing requirements/technical specifications Production Support Liaising with multiple stakeholders, including other development/testing teams. Key skills and experience required of the Mainframe Developer .Net, C# COBOL (or another 3rd generation programming language) MS Office SQL IBM OS/390 (MVS) platform experience with Endevor/ More ❯

be among the first 25 applicants. Get AI-powered advice on this job and access more exclusive features. I have a job opening for Mainframe Developer at London, UK - Hybrid. If you are interested, please share your updated resume. Job Title: Mainframe Developer Location: London, UK More ❯

Get AI-powered advice on this job and more exclusive features. Are you an experienced Mainframe developer looking for a new engagement, either contract or permanent? I am partnering with a financial services client in Scotland who are looking for experienced Mainframe Developers to help maintain and … Employment type Contract Job function Job function Information Technology Referrals increase your chances of interviewing at Be-IT by 2x Get notified about new Mainframe Developer jobs in Scotland, United Kingdom . Glasgow, Scotland, United Kingdom 1 hour ago Glasgow, Scotland, United Kingdom 1 hour ago Edinburgh, Scotland More ❯

Mainframe Developer (RPG)- 400-450 Opportunity to kick start your contracting career 12 Month contract This opportunity is with a well-known Irish Technology company and they are looking for a talented RPG Mainframe Developer. You will be writing new code features and working closely with customers … and business analysts. As an RPG Developer, you will thrive in a tech-focused organization with access to the latest technologies and will Identify and implement integration tests, automating tests where appropriate. You will: Focus on the latest tech stack including Cobol and Java Benefit from remote flexibility Play More ❯

Mainframe Developer (RPG)- 400-450 Opportunity to kick start your contracting career 12 Month contract This opportunity is with a well-known Irish Technology company and they are looking for a talented RPG Mainframe Developer. You will be writing new code features and working closely with customers … and business analysts. As an RPG Developer, you will thrive in a tech-focused organization with access to the latest technologies and will Identify and implement integration tests, automating tests where appropriate. You will: Focus on the latest tech stack including Cobol and Java Benefit from remote flexibility Play More ❯

Social network you want to login/join with: Assembler Mainframe Developer, warrington, cheshire col-narrow-left Client: BMC Software Location: Job Category: Other - EU work permit required: Yes col-narrow-right Job Views: 9 Posted: 31.05.2025 Expiry Date: 15.07.2025 col-wide Job Description: BMC Software is looking … for a Senior Assembler Developer to join our dynamic development team! In this role, you will be a contributing member of the team responsible for designing, developing, troubleshooting, and debugging software programs. These include software tools, operating systems, application programming interfaces, user interfaces, and cross-platform communication solutions. The … Processing Environment. Extensive development experience using 64-bit Assembler and 31-bit Assembler programming languages. Experience with REXX, Python is a plus Experience with Mainframe environment (TSO/ISPF, JCL etc) , IBM Mainframe z/OS internals (JES2, SMS, HSM); z/OS communications TCP/IP and More ❯

Social network you want to login/join with: Assembler Mainframe Developer, northampton col-narrow-left Client: BMC Software Location: northampton, United Kingdom Job Category: Other - EU work permit required: Yes col-narrow-right Job Views: 3 Posted: 31.05.2025 Expiry Date: 15.07.2025 col-wide Job Description: BMC Software … is looking for a Senior Assembler Developer to join our dynamic development team! In this role, you will be a contributing member of the team responsible for designing, developing, troubleshooting, and debugging software programs. These include software tools, operating systems, application programming interfaces, user interfaces, and cross-platform communication … Processing Environment. Extensive development experience using 64-bit Assembler and 31-bit Assembler programming languages. Experience with REXX, Python is a plus Experience with Mainframe environment (TSO/ISPF, JCL etc) , IBM Mainframe z/OS internals (JES2, SMS, HSM); z/OS communications TCP/IP and More ❯

Social network you want to login/join with: Assembler Mainframe Developer, wakefield col-narrow-left Client: BMC Software Location: wakefield, United Kingdom Job Category: Other - EU work permit required: Yes col-narrow-right Job Views: 3 Posted: 31.05.2025 Expiry Date: 15.07.2025 col-wide Job Description: BMC Software … is looking for a Senior Assembler Developer to join our dynamic development team! In this role, you will be a contributing member of the team responsible for designing, developing, troubleshooting, and debugging software programs. These include software tools, operating systems, application programming interfaces, user interfaces, and cross-platform communication … Processing Environment. Extensive development experience using 64-bit Assembler and 31-bit Assembler programming languages. Experience with REXX, Python is a plus Experience with Mainframe environment (TSO/ISPF, JCL etc) , IBM Mainframe z/OS internals (JES2, SMS, HSM); z/OS communications TCP/IP and More ❯

Social network you want to login/join with: Assembler Mainframe Developer, southampton col-narrow-left Client: BMC Software Location: southampton, United Kingdom Job Category: Other - EU work permit required: Yes col-narrow-right Job Views: 3 Posted: 31.05.2025 Expiry Date: 15.07.2025 col-wide Job Description: BMC Software … is looking for a Senior Assembler Developer to join our dynamic development team! In this role, you will be a contributing member of the team responsible for designing, developing, troubleshooting, and debugging software programs. These include software tools, operating systems, application programming interfaces, user interfaces, and cross-platform communication … Processing Environment. Extensive development experience using 64-bit Assembler and 31-bit Assembler programming languages. Experience with REXX, Python is a plus Experience with Mainframe environment (TSO/ISPF, JCL etc) , IBM Mainframe z/OS internals (JES2, SMS, HSM); z/OS communications TCP/IP and More ❯

Social network you want to login/join with: Assembler Mainframe Developer, worcester col-narrow-left Client: BMC Software Location: worcester, United Kingdom Job Category: Other - EU work permit required: Yes col-narrow-right Job Views: 3 Posted: 31.05.2025 Expiry Date: 15.07.2025 col-wide Job Description: BMC Software … is looking for a Senior Assembler Developer to join our dynamic development team! In this role, you will be a contributing member of the team responsible for designing, developing, troubleshooting, and debugging software programs. These include software tools, operating systems, application programming interfaces, user interfaces, and cross-platform communication … Processing Environment. Extensive development experience using 64-bit Assembler and 31-bit Assembler programming languages. Experience with REXX, Python is a plus Experience with Mainframe environment (TSO/ISPF, JCL etc) , IBM Mainframe z/OS internals (JES2, SMS, HSM); z/OS communications TCP/IP and More ❯

Social network you want to login/join with: Assembler Mainframe Developer, birmingham col-narrow-left Client: BMC Software Location: birmingham, United Kingdom Job Category: Other - EU work permit required: Yes col-narrow-right Job Views: 3 Posted: 31.05.2025 Expiry Date: 15.07.2025 col-wide Job Description: BMC Software … is looking for a Senior Assembler Developer to join our dynamic development team! In this role, you will be a contributing member of the team responsible for designing, developing, troubleshooting, and debugging software programs. These include software tools, operating systems, application programming interfaces, user interfaces, and cross-platform communication … Processing Environment. Extensive development experience using 64-bit Assembler and 31-bit Assembler programming languages. Experience with REXX, Python is a plus Experience with Mainframe environment (TSO/ISPF, JCL etc) , IBM Mainframe z/OS internals (JES2, SMS, HSM); z/OS communications TCP/IP and More ❯

Social network you want to login/join with: Assembler Mainframe Developer, high wycombe col-narrow-left Client: BMC Software Location: high wycombe, United Kingdom Job Category: Other - EU work permit required: Yes col-narrow-right Job Views: 3 Posted: 31.05.2025 Expiry Date: 15.07.2025 col-wide Job Description … BMC Software is looking for a Senior Assembler Developer to join our dynamic development team! In this role, you will be a contributing member of the team responsible for designing, developing, troubleshooting, and debugging software programs. These include software tools, operating systems, application programming interfaces, user interfaces, and cross … Processing Environment. Extensive development experience using 64-bit Assembler and 31-bit Assembler programming languages. Experience with REXX, Python is a plus Experience with Mainframe environment (TSO/ISPF, JCL etc) , IBM Mainframe z/OS internals (JES2, SMS, HSM); z/OS communications TCP/IP and More ❯

Social network you want to login/join with: Assembler Mainframe Developer, swindon, wiltshire col-narrow-left Client: BMC Software Location: swindon, wiltshire, United Kingdom Job Category: Other - EU work permit required: Yes col-narrow-right Job Views: 3 Posted: 31.05.2025 Expiry Date: 15.07.2025 col-wide Job Description … BMC Software is looking for a Senior Assembler Developer to join our dynamic development team! In this role, you will be a contributing member of the team responsible for designing, developing, troubleshooting, and debugging software programs. These include software tools, operating systems, application programming interfaces, user interfaces, and cross … Processing Environment. Extensive development experience using 64-bit Assembler and 31-bit Assembler programming languages. Experience with REXX, Python is a plus Experience with Mainframe environment (TSO/ISPF, JCL etc) , IBM Mainframe z/OS internals (JES2, SMS, HSM); z/OS communications TCP/IP and More ❯

Social network you want to login/join with: Assembler Mainframe Developer, preston, lancashire col-narrow-left Client: BMC Software Location: preston, lancashire, United Kingdom Job Category: Other - EU work permit required: Yes col-narrow-right Job Views: 3 Posted: 31.05.2025 Expiry Date: 15.07.2025 col-wide Job Description … BMC Software is looking for a Senior Assembler Developer to join our dynamic development team! In this role, you will be a contributing member of the team responsible for designing, developing, troubleshooting, and debugging software programs. These include software tools, operating systems, application programming interfaces, user interfaces, and cross … Processing Environment. Extensive development experience using 64-bit Assembler and 31-bit Assembler programming languages. Experience with REXX, Python is a plus Experience with Mainframe environment (TSO/ISPF, JCL etc) , IBM Mainframe z/OS internals (JES2, SMS, HSM); z/OS communications TCP/IP and More ❯

Social network you want to login/join with: Assembler Mainframe Developer, west london col-narrow-left Client: BMC Software Location: west london, United Kingdom Job Category: Other - EU work permit required: Yes col-narrow-right Job Views: 3 Posted: 31.05.2025 Expiry Date: 15.07.2025 col-wide Job Description … BMC Software is looking for a Senior Assembler Developer to join our dynamic development team! In this role, you will be a contributing member of the team responsible for designing, developing, troubleshooting, and debugging software programs. These include software tools, operating systems, application programming interfaces, user interfaces, and cross … Processing Environment. Extensive development experience using 64-bit Assembler and 31-bit Assembler programming languages. Experience with REXX, Python is a plus Experience with Mainframe environment (TSO/ISPF, JCL etc) , IBM Mainframe z/OS internals (JES2, SMS, HSM); z/OS communications TCP/IP and More ❯

Social network you want to login/join with: Assembler Mainframe Developer, leeds, west yorkshire col-narrow-left Client: BMC Software Location: leeds, west yorkshire, United Kingdom Job Category: Other - EU work permit required: Yes col-narrow-right Job Views: 6 Posted: 31.05.2025 Expiry Date: 15.07.2025 col-wide … Job Description: BMC Software is looking for a Senior Assembler Developer to join our dynamic development team! In this role, you will be a contributing member of the team responsible for designing, developing, troubleshooting, and debugging software programs. These include software tools, operating systems, application programming interfaces, user interfaces … Processing Environment. Extensive development experience using 64-bit Assembler and 31-bit Assembler programming languages. Experience with REXX, Python is a plus Experience with Mainframe environment (TSO/ISPF, JCL etc) , IBM Mainframe z/OS internals (JES2, SMS, HSM); z/OS communications TCP/IP and More ❯

Social network you want to login/join with: Assembler Mainframe Developer, crawley, west sussex col-narrow-left Client: BMC Software Location: crawley, west sussex, United Kingdom Job Category: Other - EU work permit required: Yes col-narrow-right Job Views: 3 Posted: 31.05.2025 Expiry Date: 15.07.2025 col-wide … Job Description: BMC Software is looking for a Senior Assembler Developer to join our dynamic development team! In this role, you will be a contributing member of the team responsible for designing, developing, troubleshooting, and debugging software programs. These include software tools, operating systems, application programming interfaces, user interfaces … Processing Environment. Extensive development experience using 64-bit Assembler and 31-bit Assembler programming languages. Experience with REXX, Python is a plus Experience with Mainframe environment (TSO/ISPF, JCL etc) , IBM Mainframe z/OS internals (JES2, SMS, HSM); z/OS communications TCP/IP and More ❯

Social network you want to login/join with: Assembler Mainframe Developer, liverpool col-narrow-left Client: BMC Software Location: liverpool, United Kingdom Job Category: Other Online job hunting tools - EU work permit required: Yes col-narrow-right Job Views: 3 Posted: 31.05.2025 Expiry Date: 15.07.2025 col-wide … Job Description: BMC Software is looking for a Senior Assembler Developer to join our dynamic development team! In this role, you will be a contributing member of the team responsible for designing, developing, troubleshooting, and debugging software programs. These include software tools, operating systems, application programming interfaces, user interfaces … Processing Environment. Extensive development experience using 64-bit Assembler and 31-bit Assembler programming languages. Experience with REXX, Python is a plus Experience with Mainframe environment (TSO/ISPF, JCL etc) , IBM Mainframe z/OS internals (JES2, SMS, HSM); z/OS communications TCP/IP and More ❯

Social network you want to login/join with: Assembler Mainframe Developer, watford, hertfordshire col-narrow-left Client: BMC Software Location: watford, hertfordshire, United Kingdom Job Category: Other Online job hunting tools - EU work permit required: Yes col-narrow-right Job Views: 3 Posted: 31.05.2025 Expiry Date: 15.07.2025 … col-wide Job Description: BMC Software is looking for a Senior Assembler Developer to join our dynamic development team! In this role, you will be a contributing member of the team responsible for designing, developing, troubleshooting, and debugging software programs. These include software tools, operating systems, application programming interfaces … Processing Environment. Extensive development experience using 64-bit Assembler and 31-bit Assembler programming languages. Experience with REXX, Python is a plus Experience with Mainframe environment (TSO/ISPF, JCL etc) , IBM Mainframe z/OS internals (JES2, SMS, HSM); z/OS communications TCP/IP and More ❯

Social network you want to login/join with: Assembler Mainframe Developer, kingston upon hull, east yorkshire col-narrow-left Client: BMC Software Location: kingston upon hull, east yorkshire, United Kingdom Job Category: Other - EU work permit required: Yes col-narrow-right Job Views: 3 Posted: 31.05.2025 Expiry … Date: 15.07.2025 col-wide Job Description: BMC Software is looking for a Senior Assembler Developer to join our dynamic development team! In this role, you will be a contributing member of the team responsible for designing, developing, troubleshooting, and debugging software programs. These include software tools, operating systems, application … Processing Environment. Extensive development experience using 64-bit Assembler and 31-bit Assembler programming languages. Experience with REXX, Python is a plus Experience with Mainframe environment (TSO/ISPF, JCL etc) , IBM Mainframe z/OS internals (JES2, SMS, HSM); z/OS communications TCP/IP and More ❯

Social network you want to login/join with: Assembler Mainframe Developer, newcastle-upon-tyne, tyne and wear col-narrow-left Client: BMC Software Location: newcastle-upon-tyne, tyne and wear, United Kingdom Job Category: Other - EU work permit required: Yes col-narrow-right Job Views: 7 Posted … 04.06.2025 Expiry Date: 19.07.2025 col-wide Job Description: BMC Software is looking for a Senior Assembler Developer to join our dynamic development team! In this role, you will be a contributing member of the team responsible for designing, developing, troubleshooting, and debugging software programs. These include software tools, operating … Processing Environment. Extensive development experience using 64-bit Assembler and 31-bit Assembler programming languages. Experience with REXX, Python is a plus Experience with Mainframe environment (TSO/ISPF, JCL etc) , IBM Mainframe z/OS internals (JES2, SMS, HSM); z/OS communications TCP/IP and More ❯

We are looking for a seasoned " Mainframe Developer" with strong expertise in IBM DB2 and other core mainframe technologies. The ideal candidate will be responsible for designing, developing, and maintaining high-performance, scalable mainframe applications. Full-time role with Ascendion 3 days onsite in Chester, UK … Design, develop, test, and maintain applications on mainframe systems using COBOL, IMS, z/OS . Work with IBM DB2 for data management and optimization. Troubleshoot and resolve production issues promptly. About us - Ascendion is a global, leading provider of AI-first software engineering services, delivering transformative solutions across More ❯

We are looking for a seasoned " Mainframe Developer" with strong expertise in IBM DB2 and other core mainframe technologies. The ideal candidate will be responsible for designing, developing, and maintaining high-performance, scalable mainframe applications. Full-time role with Ascendion 3 days onsite in Chester, UK … Design, develop, test, and maintain applications on mainframe systems using COBOL, IMS, z/OS . Work with IBM DB2 for data management and optimization. Troubleshoot and resolve production issues promptly. About us - Ascendion is a global, leading provider of AI-first software engineering services, delivering transformative solutions across More ❯