Job Summary
Unix and Linux Engineering
L3 Engineer | JD UNX-L3 | Positions 10
Experience 10-17 years | HCL Deutsche Bank account
HCL band 3.1 or 3.2 subject to discussion and final role mapping.
Role purpose
Own Unix/Linux platform designs, complex problem resolution and reusable automation. Remain hands-on with OS engineering, code review, implementation and validation across the assigned product estate.
Key Responsibilities
Key responsibilities
• Design OS builds, hardening standards and lifecycle strategies for assigned platforms, including package, kernel, driver and hardware dependencies.
• Develop and review reusable automation for patch certification, controlled rollout and configuration consistency across large estates.
• Resolve difficult kernel, memory, I/O, networking, filesystem or clustering problems through evidence-based analysis and implemented fixes.
• Define representative lab, performance, failover and recovery tests and certify changes before production rollout.
• Engineer reductions in privileged access and manual effort through approved automation, secrets controls and auditable execution.
• Lead technical production readiness, mentor engineers and work with vendors on defects while retaining ownership of implementation and validation.
Skill Requirements
Essential skills and experience
• 10-17 years of relevant experience with deep engineering expertise in the assigned Unix/Linux products.
• Strong OS internals and cross-layer troubleshooting, including the effects of storage, networking, virtualization and application dependencies.
• Demonstrated automation design using Ansible and Python or shell, with Git, CI/CD, tests and controlled production rollout.
• Evidence of leading complex platform upgrades, root-cause remediation and recovery/availability validation.
Tools and technology expertise
• Core Linux lane: RHEL, SLES or Oracle Linux; rpm/dnf/yum/zypper, systemd, journalctl, LVM and filesystem diagnostics, as appropriate to the distribution.
• Primary Unix lanes, where assigned: AIX with PowerVM/LPAR tools or Solaris with ZFS and service management. Match candidates to a specific OS lane.
• Automation and diagnosis: Ansible, Python or Bash/Shell, Git, vmstat, iostat, sar and platform-appropriate network/process diagnostics.
Preferred expertise
• Experience of working with EMC and equivalent enterprise storage products
• Experience of working in RedHat cluster (pacemaker)
• Knowledge of physical infrastructure and hardware such as HP ProLiant DL380/580, and Oracle/Sun M series and other SPARC servers
• RedHat migration in place upgrade (RHEL IPU)
• Red Hat Satellite; Puppet; Jenkins/TeamCity/GitHub Actions; ansible-lint/Molecule; VCS/Veritas Volume Manager for the relevant legacy lane.
Expected engineering outputs
• A certified OS baseline or lifecycle design with reusable automation.
• A resolved complex platform problem with evidence of improved stability or reduced manual work.
Own testing, approved implementation and validation. Follow access/change controls and protect credentials and production data.
Other Requirements
NA