Linux Engineer – Blockchain Project

Mode Talent Pty Ltd; Sydney; On-site; AUD 400,000 - 800,000; Full time

Job summary

Global Blockchain Project in Sydney is seeking a seasoned Linux systems engineer to design, build, and maintain a highly reliable infra supporting blockchain initiatives for a leading trading firm. You will own Linux across bare-metal and cloud, optimize for low-latency and high availability of validators and RPC nodes.

You will implement robust monitoring with Prometheus-style observability, secure architecture, and automation with Kubernetes, Terraform, Ansible, and Salt.

Qualifications

• Deep expertise in Linux systems engineering, kernel-level understanding.
• Experience building mission-critical infrastructure in latency-sensitive or trading environments.
• Strong background in container orchestration and automation (Kubernetes, Terraform, Ansible, Salt).
• Knowledge of networking fundamentals for bare-metal and cloud platforms.
• Robust monitoring/observability skills and alerting.
• Proficiency in Bash and at least one programming language (Python, Golang, or Rust).
• Ability to reason about security and reliability at scale.
• Proven track record of distributed systems in production.

Responsibilities

• Design, build, and maintain Linux-based infrastructure for blockchain initiatives.
• Engineer validator environments and distributed systems for low latency.
• Own Linux systems across bare-metal and cloud deployments for validators and RPC nodes.
• Develop monitoring and alerting tailored for high-availability blockchain infra.
• Harden security including key management and intrusion detection.
• Collaborate with software engineers and researchers on distributed systems and cryptography.
• Support a globally distributed team with near-zero downtime.

Skills

Linux systems engineering

Kernel tuning

Performance tuning

Troubleshooting

Kubernetes

Terraform

Ansible

Salt

Networking basics

Monitoring/observability

Bash scripting

Python

Golang

Rust

Security at scale

Distributed systems

Tools

Kubernetes

Terraform

Ansible

Salt

Job description

Global Blockchain Project – OnSite in Sydney – Relocation cost covered and VISAs – $400 to $800k First Year Package

• Global Blockchain Project
• Bare Metal and Cloud Experience

What you’ll do:

You will design, build, and maintain a highly reliable and performant Linux-based infrastructure supporting blockchain initiatives for a leading proprietary trading firm.

You will engineer validator environments and distributed systems with a focus on low-latency performance, security, and scalability.

You will take ownership of Linux systems across bare-metal and cloud deployments, ensuring high availability of validators, RPC nodes, and related services.

You will enhance observability and reliability by developing monitoring, alerting, and diagnostic systems such as Prometheus and Alertmanager tailored for HFT-grade blockchain infrastructure.

You will harden and secure infrastructure, including server security, key management, intrusion detection, and best practices for mission-critical environments.

You will work alongside software engineers and researchers on cutting-edge technologies such as consensus algorithms, distributed systems, and cryptography to support complex workloads.

You will contribute to cross-functional initiatives and external collaborations that directly support the firm’s trading operations.

You will support a globally distributed team, ensuring near-zero downtime and operational excellence.

You will continuously evaluate and integrate emerging technologies in Linux systems and the blockchain ecosystem.

Skills you’ll need:

You will need deep expertise in Linux systems engineering, including kernel-level understanding, performance tuning, and troubleshooting.

You will need experience building and supporting mission-critical infrastructure in latency-sensitive or trading environments.

You will need a strong background in container orchestration and automation with tools such as Kubernetes, Terraform, Ansible, and Salt.

You will need knowledge of networking fundamentals, including low-latency networking, routing, firewalls, and load balancing, with experience across both bare-metal and cloud platforms.

You will need strong monitoring and observability skills, including building robust alerting systems.

You will need proficiency in Bash scripting and at least one programming language, with Python, Golang, or Rust preferred.

You will need the ability to reason about security and reliability at scale, with experience implementing hardened infrastructure.

You will need a proven track record of building and maintaining complex distributed systems in production.

You will benefit from prior exposure to blockchain or distributed ledger technology, although a passion for systems engineering and an eagerness to learn is most important.

You will need reliable and predictable availability as well as a collaborative, hands-on approach.