NVISH Solutions

Job Description :

Looking for a senior candidate having experience in language C on Red Hat Enterprise Linux 4, with the goal of migrating and running it on AlmaLinux 9 in the Amazon Web Services (AWS) cloud.

Role Overview :

We are looking for an experienced Solution Architect to design and lead the modernization of a 15-year-old backend platform built in C on Red Hat Enterprise Linux 4, with the goal of migrating and running it

on AlmaLinux 9 in the Amazon Web Services (AWS) cloud.

This role will focus on porting, refactoring, and rearchitecting legacy C code to work on a modern Linux environment and defining the cloud-ready architecture, roadmap, and migration plan.

Key Responsibilities :

- Perform deep-dive assessment of existing RHEL4-based C application stack, dependencies, IPC mechanisms, flat file systems, and cron/night job processes.

- Identify obsolete libraries, system calls, and deprecated functionalities that require rewriting or alternative implementation for AlmaLinux 9.

- Create a robust target architecture on AWS leveraging EC2, networking, IAM, and security best practices.

- Build a phased migration and modernization roadmap, including cost and effort estimation.

- Define build and compilation toolchains, CI/CD approach, and testing strategies for the modernized C codebase.

- Collaborate with TuxCare consulting team to leverage expertise on legacy OS support and compatibility layers.

- Document all findings, prepare proposal decks, and support presales/solutioning discussions.

Required Skills & Experience :

- 12 years of experience in Linux systems engineering and solution architecture.

- Strong expertise in C development, compilation toolchains (GCC), and porting legacy code to modern Linux.

- Deep knowledge of Red Hat Enterprise Linux and AlmaLinux operating systems and their libraries.

- Hands-on experience designing and deploying workloads on Amazon Web Services (AWS).

- Familiarity with low-level Linux concepts: IPC, shared memory, semaphores, signals, and system daemons.

- Experience with refactoring/modernizing legacy codebases for compatibility with modern OS and libraries.

- Strong documentation, estimation, and solution proposal skills.

- Experience migrating monolithic C systems to modular or containerized architectures

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