Mainframe Infrastructure Engineer
Barclays · Chennai · Posted 2026-07-18
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About the role
To build and maintain infrastructure platforms and products that support applications and data systems, using hardware, software, networks, and cloud computing platforms as required with the aim of ensuring that the infrastructure is reliable, scalable, and secure. Ensure the reliability, availability, and scalability of the systems, platforms, and technology through the application of software engineering techniques, automation, and best practices in incident response.
Responsibilities:
- Build Engineering: Development, delivery, and maintenance of high-quality infrastructure solutions to fulfil business requirements ensuring measurable reliability, performance, availability, and ease of use. Including the identification of the appropriate technologies and solutions to meet business, optimisation, and resourcing requirements.
- Incident Management: Monitoring of IT infrastructure and system performance to measure, identify, address, and resolve any potential issues, vulnerabilities, or outages. Use of data to drive down mean time to resolution.
- Automation: Development and implementation of automated tasks and processes to improve efficiency and reduce manual intervention, utilising software scripting/coding disciplines.
- Security: Implementation of a secure configuration and measures to protect infrastructure against cyber-attacks, vulnerabilities, and other security threats, including protection of hardware, software, and data from unauthorised access.
- Teamwork: Cross-functional collaboration with product managers, architects, and other engineers to define IT Infrastructure requirements, devise solutions, and ensure seamless integration and alignment with business objectives via a data driven approach.
- Learning: Stay informed of industry technology trends and innovations, and actively contribute to the organization's technology communities to foster a culture of technical excellence and growth.
Qualifications:
- Basic/ Essential Qualifications:
- Configure, debug and maintain TCPIP and VTAM subsystems configurations
- and Strong years of experience as IBM Mainframe Network specialist (z Series) with z/os communication server
- Knowledge of all products using SNA & IP (DB2, CICS, TSO/ISPF, Netview, Connect: Direct, JES2)
- Configure and implement AT-TLS rules
- Configure and implement IPSEC policies
- Configure and implement DDVIPA setup
- Secure Encrypted data transfers (NDM, SFTP and FTP/TLS)
- Tcpip trace analysis – IP, Socket, OSA adapter, SNA, EE
- Very good understanding of network related technologies (routing, protocols, IPv4, IPv6, etc)
- Installation, upgrade and maintenance of VTAM, TCPIP, OSA
- Strong Networking knowledge/troubleshooting experience.
- To support 247 Oncall support
- Skills in Printers configuration, FTP, SMTP, SNMP configurations
- Network management software (includes NetView and NPM)
- File transfer software (includes TCP/IP FTP, Netview FTP and Connect: Direct)
- Session Management software (CA-TPX)
- Printing software ESF
- Experience with monitoring tools such as Omegamon and Elastic.
- Performance evaluation using SMF statistic data for mainframe network.
- You may be assessed on key critical skills relevant for success in this role, such as problem-solving, code quality, technical communication, collaboration, and adaptability, as well as job-specific technical skills.
- This role will be based out of Chennai.
Qualifications
- Basic/ Essential Qualifications:
- Configure, debug and maintain TCPIP and VTAM subsystems configurations and Strong years of experience as IBM Mainframe Network specialist (z Series) with z/os communication server
- Knowledge of all products using SNA & IP (DB2, CICS, TSO/ISPF, Netview, Connect: Direct, JES2)
- Configure and implement AT-TLS rules
- Configure and implement IPSEC policies
- Configure and implement DDVIPA setup
- Secure Encrypted data transfers (NDM, SFTP and FTP/TLS)
- Tcpip trace analysis
- IP, Socket, OSA adapter, SNA, EE
- Very good understanding of network related technologies (routing, protocols, IPv4, IPv6, etc)
- Installation, upgrade and maintenance of VTAM, TCPIP, OSA
- Strong Networking knowledge/troubleshooting experience.
- To support 247 Oncall support
- Skills in Printers configuration, FTP, SMTP, SNMP configurations
- Network management software (includes NetView and NPM)
- File transfer software (includes TCP/IP FTP, Netview FTP and Connect: Direct)
- Session Management software (CA-TPX)
- Printing software ESF
- Experience with monitoring tools such as Omegamon and Elastic.
- Performance evaluation using SMF statistic data for mainframe network.
- You may be assessed on key critical skills relevant for success in this role, such as problem-solving, code quality, technical communication, collaboration, and adaptability, as well as job-specific technical skills.
- This role will be based out of Chennai.
Responsibilities
- Build Engineering: Development, delivery, and maintenance of high-quality infrastructure solutions to fulfil business requirements ensuring measurable reliability, performance, availability, and ease of use.
- Including the identification of the appropriate technologies and solutions to meet business, optimisation, and resourcing requirements.
- Incident Management: Monitoring of IT infrastructure and system performance to measure, identify, address, and resolve any potential issues, vulnerabilities, or outages.
- Use of data to drive down mean time to resolution.
- Automation: Development and implementation of automated tasks and processes to improve efficiency and reduce manual intervention, utilising software scripting/coding disciplines.
- Security: Implementation of a secure configuration and measures to protect infrastructure against cyber-attacks, vulnerabilities, and other security threats, including protection of hardware, software, and data from unauthorised access.
- Teamwork: Cross-functional collaboration with product managers, architects, and other engineers to define IT Infrastructure requirements, devise solutions, and ensure seamless integration and alignment with business objectives via a data driven approach.
- Learning: Stay informed of industry technology trends and innovations, and actively contribute to the organization's technology communities to foster a culture of technical excellence and growth.