Protocol Engineer – Contract
Employment Information
Report this job
Job expired or something wrong with this job?
Job Description
Protocol Engineer at Nexus, building execution systems for a next-generation Layer 1 blockchain. Collaborate with teams across Latin America, focusing on performance-critical execution paths.
Responsibilities:
- Design and implement protocol-level execution systems in Rust, C++, or Go.
- Build and evolve the runtime responsible for transaction execution, order processing, and state transitions.
- Optimize concurrency, scheduling, memory layout, and I/O for deterministic, high-throughput execution.
- Define and implement execution abstractions that may be enshrined at the protocol layer.
- Work with cryptography and consensus engineers to ensure safety, correctness, and composability.
- Diagnose and resolve performance and correctness issues using profiling, tracing, and benchmarking.
- Help establish standards for protocol correctness, reliability, and execution guarantees.
- For senior/principal engineers: lead execution of architecture decisions and mentor engineers working on protocol systems.
Requirements:
- Strong experience with Rust, C++, Go, or other systems programming languages.
- Experience working on protocols, runtimes, execution layers, or consensus-adjacent systems.
- Deep understanding of distributed systems, concurrency, and low-latency execution.
- Ability to reason about correctness, determinism, and invariants at the protocol level.
- Practical experience optimizing performance-critical systems.
- Comfort operating in environments where correctness and performance are equally critical.
- Excellent communication skills in Business English (spoken and written).
Benefits:
- Help define the execution semantics of a new Layer 1 blockchain.
- Work on protocol systems where your decisions have network-wide impact.
- Grow into ownership of protocol-critical execution components.
- Shape primitives intended to last — performant, correct, and foundational.
- Join a culture that values deep technical rigor and long-term thinking.
Similar Jobs
Senior Distributed Systems Engineer – Platform Engineering
Senior Engineer specializing in distributed systems at RTB House, providing marketing technologies. Leading development and ensuring system reliability and scalability in complex IT environments.
Senior Protocol Engineer
Senior Protocol Engineer at Provable, developing privacy preserving zero knowledge protocols for the blockchain. Collaborating with teams to implement and maintain distributed systems and protocols.
Distributed Systems Engineer 5 – Membership Engineering
Distributed Systems Engineer developing resilient, high-scale microservices for Netflix's commerce platform. Collaborating cross-functionally to optimise customer flows and drive business growth.
Senior Compliance Manager, Blockchain & Crypto
Senior Compliance Manager overseeing compliance framework in a fast-paced crypto banking environment. Working with data and engineering teams to integrate AI and automation in compliance processes.
Protocol Engineer
Protocol Engineer developing solutions to scale Ethereum systems for Base. Join the team to help pave the way for billions of users onchain.
Senior Blockchain Engineer
Senior Blockchain Engineer developing scalable microservices for fintech startup. Collaborating with platform engineers and contributing to the design of event-driven software.
Senior Blockchain Engineer
Senior Blockchain Engineer developing microservices for Zero Hash's digital assets platform. Contributing to software design, troubleshooting, and collaborating with technical teams.
Blockchain Developer, Node.js
Blockchain Developer with Node.js expertise joining the team to build reliable backend services. Focusing on integrating multiple blockchain networks and processing large volumes of blockchain data.
Software Engineer, Blockchain
Blockchain Engineer responsible for building smart contracts and blockchain infrastructure at 1inch. Collaborating with teams to innovate within the DeFi ecosystem and ensure security and quality.
Core Blockchain Team Lead
Blockchain Team Lead managing a team for Ethereum Staking projects at SSV Labs. Collaborating with CTO and researchers in building decentralized infrastructure.
Protocol Engineer – Contract
Protocol Engineer building execution runtime for Nexus's Layer 1 blockchain. Collaborating remotely with teams focusing on performance-critical systems.
Managed Blockchain Developer
Amazon Managed Blockchain Developer specializing in Hyperledger Fabric networks. Designing and maintaining AMB deployments and integrations with AWS services.
Senior DeFi Engineer – Primitives, Blockchain Experience
Part-time Senior DeFi Engineer defining core DeFi mechanisms for a blockchain startup. Join Launch Legends to innovate decentralized financial infrastructure and tooling for cross-chain liquidity.
Senior DeFi Engineer – Infrastructure, Blockchain Experience
Senior DeFi Engineer designing scalable DeFi backends using Node.js and Kubernetes for Launch Legends. Join a team transforming Web3 infrastructure with innovative DeFi solutions and technology.
Senior DeFi Engineer – Blockchain Experience
Senior DeFi Engineer designing full-spectrum solutions for integrating businesses with blockchain technology. Focusing on smart contracts, liquidity pools, and overall DeFi applications.
Blockchain Site Reliability Engineer
Blockchain Site Reliability Engineer ensuring reliability and performance of blockchain nodes at InfStones. Monitoring incidents and building automation tools for operational efficiency.
Security Engineer – Blockchain, Digital Assets
Security Engineer architecting our defense-in-depth strategy for securing digital assets. Collaborating with Infrastructure and Software teams to protect our production environment.
Infrastructure Engineer – Blockchain, Digital Assets
Infrastructure Engineer managing hardened production blockchain environment for N3XT. Leading blockchain node orchestration and cryptographic key lifecycle management.
Blockchain Developer – Solidity, Rust
Blockchain Developer with expertise in Solidity and Rust for the first Islamic ecosystem built on blockchain technology. Join a team developing ethical financial solutions with a focus on collaboration and innovation.
AI/ML Backend Developer – Blockchain Focused
AI/ML Backend Developer designing and implementing AI-driven features into Caiz's blockchain ecosystem. Responsible for machine learning models and data pipelines to deliver intelligent backend services.