Mainframe Infrastructure Engineer

1203 Barclays Global Serv. Cent; Chennai District; On-site; INR 1,200,000 - 1,600,000; Full time

Job summary

Barclays Global Services Centre in Chennai seeks an experienced IBM Mainframe Network specialist to build, monitor, and maintain high‑reliability infrastructure. You will secure communications, manage VTAM/TCPIP configurations, and drive automation while supporting 24/7 operations and cross‑functional collaboration.

Strong networking expertise and experience with NetView, Omegamon, and related tools are required to ensure scalable, secure, and resilient data center capabilities for critical

Qualifications

• Configure, debug and maintain TCPIP and VTAM subsystems configurations
• 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 24/7 on‑call 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

Responsibilities

• Build Engineering: Development, delivery, and maintenance of infrastructure solutions with reliability, performance, availability and ease of use
• Incident Management: Monitor IT infrastructure and system performance to identify and address issues
• Automation: Develop automated tasks to improve efficiency and reduce manual intervention
• Security: Implement secure configuration and protect infrastructure against cyber threats
• Teamwork: Collaborate with product managers, architects, and engineers to align with business objectives
• Learning: Stay informed of industry trends and contribute to technology communities

Skills

Networking

On-call support

Troubleshooting

Tools

Omegamon

Elastic

NetView

NPM

Job description

Purpose of 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.

Accountabilities

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 organisation's technology communities to foster a culture of technical excellence and growth.

Analyst Expectations

To perform prescribed activities in a timely manner and to a high standard consistently driving continuous improvement. Requires in-depth technical knowledge and experience in their assigned area of expertise. Thorough understanding of the underlying principles and concepts within the area of expertise. They lead and supervise a team, guiding and supporting professional development, allocating work requirements and coordinating team resources.

If the position has leadership responsibilities, People Leaders are expected to demonstrate a clear set of leadership behaviours to create an environment for colleagues to thrive and deliver to a consistently excellent standard. The four LEAD behaviours are: L – Listen and be authentic, E – Energise and inspire, A – Align across the enterprise, D – Develop others.

For an individual contributor, they develop technical expertise in work area, acting as an advisor where appropriate. Will have an impact on the work of related teams within the area. Partner with other functions and business areas. Takes responsibility for end results of a team’s operational processing and activities. Escalate breaches of policies / procedure appropriately. Take responsibility for embedding new policies/ procedures adopted due to risk mitigation. Advise and influence decision making within own area of expertise. Take ownership for managing risk and strengthening controls in relation to the work you own or contribute to. Deliver your work and areas of responsibility in line with relevant rules, regulation and codes of conduct.

Demonstrate understanding of how areas coordinate and contribute to the achievement of the objectives of the organisation sub‑function. Make evaluative judgements based on the analysis of factual information, paying attention to detail. Resolve problems by identifying and selecting solutions through the application of acquired technical experience and will be guided by precedents. Guide and persuade team members and communicate complex / sensitive information. Act as contact point for stakeholders outside the immediate function, while building a network of contacts outside team and external to the organisation.

Basic / Essential Qualifications

• Configure, debug and maintain TCPIP and VTAM subsystems configurations
• 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 24/7 on‑call 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

Highly Valued Skills

• Experience with monitoring tools such as Omegamon and Elastic
• Performance evaluation using SMF statistic data for mainframe network

Work Location

This role will be based out of Chennai.

Values & Behaviour

All colleagues will be expected to demonstrate the Barclays Values of Respect, Integrity, Service, Excellence and Stewardship – our moral compass, helping us do what we believe is right. They will also be expected to demonstrate the Barclays Mindset – to Empower, Challenge and Drive – the operating manual for how we behave.