Systems Engineer – Contract

🔥 16 hours ago

🇦🇷 Argentina – Remote

⏳ Contract/Temporary

🟢 Junior

⚙️ Systems Engineer

🚫👨‍🎓 No degree required

👻 Ghost score 12%

What it means: how likely this posting is sitting open without active hiring.How to read it: 60% or higher means we think this is a ghost. Lower scores are less of a worry.How we score it: age, reposts, open roles vs team size, how fast jobs close, and whether pay is listed.Fine print: an estimate from public data, not a judgment of the company. Real jobs can score high, so treat it as a hint, not a fact.

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Nexus

WebsiteLinkedInAll Job Openings

11 - 50 employees

💼 Consulting

📦 Logistics

🤖 Artificial Intelligence

Consulting • Logistics • Artificial Intelligence

Nexus is on a mission to enable the Verifiable Internet by building the world’s most powerful distributed supercomputer. Our team of leading mathematicians, engineers, and cryptographers is dedicated to developing next-generation secure and scalable technologies, such as the Nexus zkVM, to ensure the accuracy of AI and support advanced computational tasks. By partnering with Nexus, individuals and organizations can contribute to this innovative ecosystem and help shape the future of computation.

📋 Description

• Design and implement high-performance components in Rust, C++, or Go for Nexus’s DEX engine and protocol runtime • Build low-latency pipelines for order execution, event propagation, and state updates • Optimize concurrency, scheduling, memory layout, and I/O paths for determinism and throughput • Contribute to execution abstractions that may be enshrined at the protocol layer • Work with protocol engineers to ensure safety, composability, and consensus compatibility • Investigate and resolve performance bottlenecks using profiling, tracing, and benchmarking • Help define standards for reliability, correctness, and high-assurance distributed execution • For senior/principal candidates: drive system design decisions, shape execution architecture, and mentor others in performance engineering • Collaborate with protocol, cryptography, and product teams in San Francisco while contributing remotely from Argentina

🎯 Requirements

• Strong experience with Rust, C++, Go, or other systems programming languages • Understanding of high-performance or distributed systems (e.g., low-latency engines, runtimes, databases, OS-level concurrency) • Ability to think in terms of execution flows, concurrency models, resource lifecycles, and system invariants • Practical experience profiling CPU, memory, and synchronization overhead • Comfort working close to runtime constraints where performance, determinism, and resilience are critical • Excellent communication skills in Business English (spoken and written) • Junior level: 1–3 years of experience • Principal level: 8+ years of experience • Willingness to work PST (San Francisco, CA timezone) hours and be on-call • Must be located within commutable distance to Buenos Aires • Bonus: experience with matching engines, databases, compilers, blockchain runtimes, or HPC systems • Bonus: familiarity with lock-free concurrency, zero-copy data structures, or cache-aware design • Bonus: exposure to protocol engineering, consensus systems, or transaction ordering • Bonus: background in correctness-focused engineering, such as formal verification or static analysis • Bonus: open-source contributions to systems-level projects