Nexus

Systems Engineer, Contract

Nexus

contract

Posted on:

Location Type: Remote

Location: Brazil

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Tech Stack

Distributed SystemsGoRust

About the role

  • Design, implement, and optimize high-performance components in Rust, C++, or Go for Nexus’s DEX engine and protocol runtime.
  • Design, implement, and optimize all layers of the Nexus protocol stack, including consensus, execution, and API/RPC servers.
  • Build low-latency pipelines for order execution, event propagation, and state updates.
  • Design and implement financial and trading primitives on the Nexus L.
  • 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.

Requirements

  • Very strong systems engineering ability: writing modular, maintainable code within a complex codebase where correctness and performance are critical.
  • Experience with Rust (or C++/Go with strong performance focus).
  • 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.
  • Interest in performance optimization and low-level profiling (CPU, memory, synchronization overhead).
  • Strong first-principles thinker with excellent problem-solving skills, attention to detail, and communication ability.
  • Competitive programming experience (e.g., IOI, ICPC) or similar level of programming ability is a plus.
  • Excellent communication skills in business English (spoken and written).
Benefits
  • Build the execution backbone of a Layer 1 blockchain and next-generation DEX engine.
  • Work on systems where your optimizations translate directly into global performance gains.
  • Grow from mid-level contributor to system owner — or drive execution architecture as a senior/principal.
  • Shape primitives designed to last — correct, performant, and potentially enshrined at the protocol level.
  • Join a high-performance engineering culture where ambition and deep technical work are expected.
Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills & Tools
RustC++Gohigh-performance componentslow-latency pipelinesconcurrency optimizationprofilingtracingbenchmarkingfinancial and trading primitives
Soft Skills
systems engineeringproblem-solvingattention to detailcommunicationfirst-principles thinkingmentoringdesign decision makingexecution architecture shaping