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Mid-senior software engineer (systems & infrastructure)

Sydney
Limpid Logic
Software Engineer
Posted: 2 May
Offer description

Overview

Experience: 10+ years Python, 3+ years Rust

Direct Applicants Only (No Recruitment Agencies)

We aren't building just another SaaS dashboard. We are operating at the bedrock of global communication, partnering with the largest telecommunications providers on the planet to solve high-stakes infrastructure challenges.

We are looking for a Systems-level Engineer who understands that "the cloud" is just someone else's Linux box and knows exactly how to tune it. This role is for the engineer who thrives in the terminal, respects type safety, and enjoys the complexity of low-latency networking and massive data persistence.

The Tech Stack

* The Languages: Heavy-duty Python (10+ years) for orchestration and tooling, and high-performance Rust (5+ years) for the critical paths where every microsecond and byte of memory counts.
* The OS: Deep Linux expertise is non-negotiable. You should be comfortable with kernel tuning, systemd, and advanced networking configurations.
* The Data: Architectural-level experience with PostgreSQL (5+ years).
* The Environment: Advanced Cloud Computing, Virtualization, and Containerization (Docker). You understand the abstractions and, more importantly, how to debug them when they leak.

Why This is Different

* Zero-AI Environment Due to the highly sensitive nature of our intellectual property and the critical infrastructure we support, unlike the trends in other companies, we maintain a strict no-AI-tooling policy (No Copilot, ChatGPT, or LLM-integrated IDEs). If you rely on LLMs to write your functions or debug your logic, this is not the role for you. We value engineers who have a deep, internalised understanding of their craft. You should be able to reason through complex systems, debug from first principles, and write memory-safe code without a generative safety net. We want people who think for themselves.
* No "Vibe Coders" We don't do "move fast and break things" when it comes to global telco infrastructure. We need engineers who understand networking protocols, concurrency primitives, and systems architecture. We value stability, performance, and rigorous engineering over trendy shortcuts.
* Collaborative On-Site Culture We believe the best systems are architected in front of a whiteboard. This is a 100% in-office role, working alongside a lean team of experts who prefer high-bandwidth, face-to-face technical collaboration.

Requirements

* 10+ years of professional Python experience.
* 5+ years of production Rust experience.
* 5+ years of PostgreSQL (performance tuning and schema design).
* Expert-level Linux knowledge and Networking fundamentals.
* Proven track record with Virtualization and Docker.
* The ability to write clean, robust code without the assistance of AI or similar tools.
* Must be eligible to work in Australia and willing to work from the office daily.

How to Apply

If you prefer a CLI to a GUI and value a real Operating System over the modern "Ad Platforms" that Windows and macOS have become where your "Start Menu" is a billboard and your privacy is a product... we want to hear from you.

STRICTLY NO RECRUITMENT AGENCIES. We do not accept unsolicited resumes and will not pay agency fees.

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