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 the evolution of 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 techniques.
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.

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).

Experience building matching engines, databases, compilers, blockchain runtimes, or HPC systems.
Familiarity with lock-free concurrency, zero-copy data structures, or cache-aware design.
Exposure to protocol engineering, consensus systems, or transaction ordering.
Background in correctness-focused engineering (e.g., formal verification, static analysis).
Open-source contributions to systems-level projects.

Remote (Worldwide) — Remote

Nexus is hiring a Systems Engineer (Contract, LATAM)