Staff Software Engineer - Platform Team at Hedera

Requirements

Qualification Requirements:

8 years total and 6 years current experience with Java
Superior ability to create, analyze, and improve algorithms
In-depth experience with Java concurrency
In-depth experience with data structures
Experience with Java memory management
Experience with data IO
Strong problem-solving and reasoning skills
Strong communication skills
Collaborative mindset
Adaptability
Commitment to continuous learning and improvement

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

Blockchain technology or DLT
Distributed systems
NetworkingTask-based architecture
Discrete mathematics
Merkle Trees
Experience building a database from scratch
On-disk data structures
Java garbage collectors (ZGC, Shenandoah, etc.)
Performance optimization
JMH/custom profilers

Scope of Work

About the role:

As a member of the Platform Team, you are fluent in algorithms and data structures. You are responsible for the core algorithms and data storage that make the Hedera ledger the fastest, most secure, and most efficient option out there today: gossip, consensus, state storage, etc. The Platform Team continually adds features that deliver for Hedera and the community while increasing scalability and reliability and decreasing time to finality. You also work directly with the custom database designed for extreme performance that backs Hedera Hashgraph and optimizes consensus node data storage techniques for both scalability and performance.

You may find yourself doing all of the following:

Developing, reviewing, and testing algorithms
Feature design, implementation, testing, and documentation
Designing and implementing in-memory and on-disk data structures
Analyzing and improving data flow and back pressure mechanisms
Identifying and eliminating bottlenecks
Innovating, designing, implementing, and testing new approaches to improve speed and scalability

Benefits

See full list of benefits on Glassdoor: https://www.glassdoor.com/Benefits/Hashgraph-US-Benefits-EI_IE10178939.0,9_IL.10,12_IN1.htm

Applicant Location Requirements

FULLY REMOTE

from anywhere.

About Hedera

Hedera stands apart as a leading EVM blockchain through its distinctive developer experience, enabling developers of all backgrounds to leverage familiar tools like Solidity or its JavaScript SDK* to build breakthrough applications.

Linux Foundation Decentralized Trust manages Hedera’s open-source codebase (as Project Hiero) including the hashgraph consensus algorithm which enables 10,000+ TPS, 3s finality, low fees priced in USD, and the highest grade (aBFT) of security. Meanwhile, the Hedera public network is governed by a diverse council of the world’s leading institutions to ensure transparent and fair decision-making.

By empowering the development of applications that solve real-world challenges across DeFi, tokenization, AI, digital identity, and more, Hedera is the trust layer that underpins a decentralized future.

For more information, visit www.hedera.com, or follow us on X at @hedera, Telegram at t.me/hederahashgraph, or Discord at www.hedera.com/discord. The Hedera whitepaper can be found at www.hedera.com/papers.

*Hedera also hasSDKs for Java, Python, Rust, Go, and Swift!