Senior Software Engineer - Execution Team (Remote)

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Job Summary:

Hashgraph is a fast-growing software company focused on developing and servicing Hedera, an open-source proof-of-stake platform. The Senior Software Engineer on the Execution Team will be responsible for delivering software services and APIs within the Hiero Consensus Node, tackling technical challenges related to distributed execution and transaction lifecycles.

Responsibilities:

• Design, develop, test, and debug core components of the execution layer

• Collaborate with cross-functional teams to define and deliver end-to-end functionality

• Optimize performance and scalability of the execution layer for high-throughput transaction workloads

• Ensure correctness, determinism, and reliability in service implementations

• Drive high standards in code quality, testing, and documentation

• Contribute to a culture of technical excellence and open-source collaboration

Qualifications:

Required:

• 4+ years of professional software engineering experience

• Strong expertise in Java, with a deep understanding of concurrent programming and system performance

• Strong grasp of computer science fundamentals, including data structures, algorithms, concurrency, and design patterns

• Experience building and maintaining distributed systems at scale

• Experience with API design, particularly gRPC

• Strong problem-solving and debugging skills

• Excellent communication and collaboration skills

• Having a passion for code quality, system design, and doing things the right way

Preferred:

• Experience in distributed ledger Technologies (DLT) or blockchain platforms

• Exposure to security principles in distributed applications or cryptographic systems

• Familiarity with web3 tools or smart contract platforms (especially EVM)

• Experience with event-driven architectures or high-frequency trading systems

• Experience profiling and optimizing complex and concurrent systems

Company:

Our mission is clear: to cultivate a secure, trusted, and sustainable decentralized world. Founded in 2022, the company is headquartered in Dallas, Texas, USA, with a team of 51-200 employees. The company is currently Growth Stage. Hashgraph has a track record of offering H1B sponsorships.