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.
- Robust 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.

Must Have Skill

Unix

Good to Have Skill

Other Requirements

NA

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