Secure Linux & Open-Source Platform Engineer

ByDesign Secure Systems Ltd; West of England; Hybrid; GBP 85,000 - 120,000; Full time

Job summary

ByDesign Secure Systems Ltd seeks a Linux & Open‑Source Collaboration Specialist to help engineer secure, mission‑critical systems for UK government projects. You’ll be part of a multi-year transformation programme, standing up secure containerised messaging and Linux streaming for air‑gapped environments.

You’ll deploy Matrix and Rocket.Chat on Kasm Workspaces, harden Linux, and collaborate across architecture, security, and engineering teams to deliver enterprise‑grade solutions.

Qualifications

• 5+ years in Linux Systems Engineering & Open‑Source Collaboration platforms.
• Proven hands-on experience as an open-source/Linux engineer in enterprise environments.
• Practical hands-on knowledge of Linux, Kasm, container orchestration, Python, Matrix & Rocket.Chat.
• Experience working in environments without direct internet connectivity.
• Comfort working in highly regulated or classified environments requiring reliability and compliance.
• Strong written communication to support design outputs.

Responsibilities

• Operate as an open-source platform engineer for secure containerised messaging systems and Linux-based streaming VDI.
• Deploy and administer enterprise collaboration servers using Matrix and Rocket.Chat.
• Deploy containerised browser/desktop streaming via Kasm Workspaces.
• Perform baseline security hardening for enterprise Linux distributions and runtimes.
• Support a model office environment to demonstrate capabilities and gather rapid feedback.
• Operate and maintain solutions in air-gapped, security-sensitive environments with compliance.
• Collaborate with architecture, security, and engineering teams to meet enterprise standards.
• Develop and maintain High/Low Level Designs, procedures, and runbooks.
• Produce and present technical designs and improvement plans through governance.

Skills

Linux Systems Engineering

Open-Source Collaboration

Enterprise environments

Strong communication

Tools

Kasm Workspaces

Matrix protocol

Rocket.Chat

Container Orchestration

Python

Linux

Job description

ByDesign Secure Systems Ltd seeks a Linux & Open‑Source Collaboration Specialist to help engineer secure, mission‑critical systems for UK government projects. You’ll be part of a multi-year transformation programme, standing up secure containerised messaging and Linux streaming for air‑gapped environments.

You’ll deploy Matrix and Rocket.Chat on Kasm Workspaces, harden Linux, and collaborate across architecture, security, and engineering teams to deliver enterprise‑grade solutions.