Remote Senior Systems Engineer - High-Perf Blockchain

Openkrill; United States; Remote; USD 140,000 - 200,000; Full time

Job summary

Nexus is seeking senior systems engineers to join the execution stack, working on the core of the Layer 1 protocol and a high-performance DEX engine. This role is remote from Argentina with collaboration across San Francisco, Buenos Aires, and LATAM teams.

You will design and optimize low-latency components in Rust, C++, or Go, tackle performance bottlenecks, and mentor junior engineers as part of a distributed, security-focused engineering culture.

Qualifications

• Strong experience with Rust, C++, Go or related systems programming languages.
• Experience designing high-performance, low-latency distributed systems.

Responsibilities

• Design and implement high-performance components for Nexus’s DEX engine and protocol runtime in Rust, C++, or Go.
• 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 evolution of execution abstractions that may be used at the protocol layer.
• Collaborate with protocol engineers to ensure safety, composability, and consensus compatibility.
• Investigate and resolve performance bottlenecks using profiling, tracing, and benchmarking techniques.
• Help define standards for reliability and high-assurance distributed execution.
• For senior/principal candidates: drive system design decisions and mentor others in performance engineering.

Skills

Rust

C++

Go

Job description

Nexus is seeking senior systems engineers to join the execution stack, working on the core of the Layer 1 protocol and a high-performance DEX engine. This role is remote from Argentina with collaboration across San Francisco, Buenos Aires, and LATAM teams.

You will design and optimize low-latency components in Rust, C++, or Go, tackle performance bottlenecks, and mentor junior engineers as part of a distributed, security-focused engineering culture.