Senior Systems Engineer, Contract

This is a fully remote position, open to applicants in Argentina.

📋 Description

• Design and develop high-performance components in Rust, C++, or Go for the DEX engine and protocol runtime at Nexus.

• Create low-latency pipelines for order execution, event propagation, and state updates.

• Enhance concurrency, scheduling, memory layout, and I/O paths to ensure determinism and throughput.

• Contribute to the advancement of execution abstractions that may become foundational at the protocol layer.

• Collaborate with protocol engineers to guarantee safety, composability, and consensus compatibility.

• Analyze and address performance bottlenecks utilizing profiling, tracing, and benchmarking techniques.

• Assist in establishing standards for reliability, correctness, and high-assurance distributed execution.

• For senior/principal candidates: Lead system design decisions, influence execution architecture, and mentor peers in performance engineering.

⛳️ Requirements

• Extensive experience with Rust, C++, Go, or other systems programming languages.

• Knowledge of high-performance or distributed systems (e.g., low-latency engines, runtimes, databases, OS-level concurrency).

• Ability to conceptualize execution flows, concurrency models, resource lifecycles, and system invariants.

• Hands-on experience profiling CPU, memory, and synchronization overhead.

• Comfort with working close to runtime constraints where performance, determinism, and resilience are vital.

• Strong communication skills in Business English (both spoken and written).

🏝️ Benefits

• Contribute to building the execution backbone of a Layer 1 blockchain and a next-generation DEX engine.

• Engage in systems where your optimizations lead directly to global performance enhancements.

• Advance from a mid-level contributor to a system owner — or lead execution architecture as a senior/principal.

• Influence the creation of durable primitives — correct, efficient, and possibly established at the protocol level.

• Join a high-performance engineering culture where ambition and rigorous technical work are the norms.