Offer summary

Qualifications:

8+ years of software development experience, Master’s degree in Computer Science or equivalent work experience, Expertise in Java concurrency and data IO, Strong debugging, critical thinking, and interpersonal skills..

Key responsabilities:

Implement and enhance Java-based low latency streaming and storage management features

Design, develop, and maintain server-side logic for back-end solutions with public APIs

Optimize code for maximum speed, scalability, and system efficiency

Collaborate with consensus, execution, and mirror node teams to ensure data integrity and availability.

Job description

About Hashgraph:

Hashgraph is a fast-growing software company committed to supporting, developing and servicing Hedera, an open source, proof-of-stake platform. Hedera is EVM-compatible and has been specifically built to meet the needs of enterprise and Web3 applications, which require speed, security, stability and sustainability. Hedera’s public network is governed by industry-leading organizations, spanning 11 sectors and 14 regions who oversee the development and direction of the decentralized platform.

About the role:

The Block Node team is looking for a seasoned engineer who can contribute to the development of the Java-based low-latency, high-throughput Hedera block node product. As a member of the team, you are tasked with ensuring the block node provides high performance network data streaming, storage, state related APIs and many more extensible features. You will work directly with consensus, execution and mirror node teams to ensure the decentralized and embedded trust of the block streams is verifiable and available to all.

You may find yourself doing all of the following:

Implementing and enhancing the Java-based low latency streaming and long-term storage management features
Designing, developing, and maintaining server-side logic for back-end solutions with public APIs involving gRPC
Managing efficient serialization and deserialization of protobuf
Writing efficient, reusable, and reliable code to optimize for maximum speed, scalability, and system efficiency
Continuously discovering and evaluating alternatives for architectural review and implementing new technologies to maximize development efficiency and effectiveness
Performance-tuning of core modules
Designing high-performance, low-latency matching algorithms of a multi-threaded in-order message service
Staying connected with the Web3 ecosystem bringing vital learnings, discussions, and applicable explorations on blockchain validators and verifiers bringing them back to the team to improve
Developing various aspects of the Hedera Hashgraph Distributed Ledger Ecosystem
Being a strong and proficient hands-on programmer
Spending 80% of your time designing, coding, and testing

Qualification Requirements:

8+ years of software development experience
Master’s degree in Computer Science or a similar field or equivalent work experience
Expertise in the Java concurrency
Experience with data IO
Excellent debugging, critical thinking, and interpersonal skills
Familiarity with event-driven and test-driven software development processes and continuous integration tools and systems
Strong grasp of Computer Science fundamentals, including concurrency, performance optimization, and reusability

Other skills that are great to bring with you but that we can help you develop:

Deep knowledge of and experience with the Java VM, covering its strengths and weaknesses
Deep knowledge of and experience with high frequency message broker technologies
Deep knowledge of and experience with Helidon
Strong engineering principles and processes aimed at developing simple, modular, testable, and high-quality code
Knowledge of blockchain/DLT technology ecosystem
Familiarity with security principles, cryptographic tools and libraries
Familiarity with high-performance architectural systems and design patterns

Required profile