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Hashgraph · 2 months ago

Principal EVM Engineer - Smart Contracts Team

United States

Contract

Remote

Lead/Staff

10+ years exp

Hashgraph is a fast-growing software company committed to supporting, developing and servicing Hedera, an open source, proof-of-stake platform. The Smart Contracts team is seeking a seasoned Java engineer with deep blockchain protocol engineering experience to contribute to the evolution, performance, and optimization of the Hedera EVM. Responsibilities include designing and implementing transaction processing, enhancing Java smart contract services, and contributing to open source code clients.

Information TechnologyInternetNetwork Hardware

H1B Sponsor Likely

Responsibilities

Being part of an engineering team that delivers values frequently, working from design to implementation in a daily collaborative process

Working on plain Java codebase (with no libraries or frameworks) with high performance, low latency and high throughput requirements

Designing, implementing, and innovating transaction processing, execution algorithms, processes, and opcodes

Implementing and enhancing the Java smart contract services on the Hedera network that expose EVM features

Upgrading the Hedera EVM with the Ethereum roadmap upgrades and the Hedera native innovations

Contributing to open source code clients that focus on VM state transitions based on contract bytecode with the goal of new feature support and performance improvements

Developing various aspects of the Hedera Hashgraph Distributed Ledger Ecosystem

Implementing Hedera improvement proposals requested by the community

Testing the Hedera EVM with Ethereum community tools and Consensus node testing tools

Spending 80% of your time designing, coding, and testing

Qualification

Java programmingBlockchain developmentEVM-based blockchainsSmart contractsDistributed application developmentPerformance optimizationComputer Science fundamentalsHigh-performance architectureTest-driven developmentOpen source developmentSecurity principlesCryptographic toolsContinuous integrationTeam leadership

Required

Master's degree in Computer Science or a similar field, or equivalent work experience

10+ years of software development experience

4+ years of blockchain development experience

Experience with distributed open-source application development

Expertise in the Java programming language, VM, and its ecosystem of libraries and tools

Experience in plain vanilla Java development with high performance requirements

Deep knowledge of and experience with EVM-based blockchains

Experience writing and debugging smart contracts for an EVM-based ledger

Experience in a tech or team lead role with the ability to guide engineers up to the Staff level

Strong grasp of Computer Science fundamentals, including concurrency, performance optimization, and reusability

Strong engineering principles and processes aimed at developing simple, modular, testable, and high-quality code

Familiarity with high-performance architectural systems and design patterns

Familiarity with test-driven software development processes and continuous integration tools and systems

Familiarity with security principles, cryptographic tools, and libraries

Preferred

Experience with Hyperledger Besu

Familiarity in developing libraries and platforms for use and deployment by application developers

Open source development experience

Expertise with Dagger or any compile time dependency injection framework

Protobuff development experience

Proficiency with web3 tools written in JavaScript or TypeScript

Experience with performance, static code, and data-flow analysis

Expertise with compilers, parsers, interpreters, and garbage collectors

Hotspot JVM or GraalVM experience

Company

Hashgraph

Our mission is clear: to cultivate a secure, trusted, and sustainable decentralized world.

Founded in 2022

Dallas, Texas, USA

51-200 employees

https://swirldslabs.com

H1B Sponsorship

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