The Nuclear Company · 1 month ago
Principal Blockchain Engineer
Seattle, WA
Full-time
Onsite
Senior Level, Lead/Staff
$198K/yr - $228K/yr
3+ years expThe Nuclear Company is the fastest growing startup in the nuclear and energy space creating a fleet-scale approach to building nuclear reactors. As a Principal Blockchain Engineer, you will design, develop, and implement distributed ledger technology solutions to enhance security and compliance in digital document management.
Clean EnergyElectrical DistributionNuclear
Responsibilities
Design, develop, and deploy secure and scalable blockchain solutions and decentralized applications (DApps) for digital agreement workflows and identity verification
Write, test, and deploy smart contracts (e.g., Solidity on Ethereum-compatible networks, or other relevant DLT platforms) for automated agreement execution, dispute resolution, and verifiable record-keeping
Integrate blockchain components and smart contracts seamlessly with existing cloud-based applications, document management systems, and backend services
Implement robust cryptographic solutions and ensure the security, integrity, and immutability of data stored and processed on the blockchain
Optimize blockchain solutions for high transaction throughput, low latency, and efficient resource utilization, ensuring enterprise-grade performance
Stay current with the latest developments in blockchain technology, cryptography, and digital identity, evaluating new protocols and tools for potential application
Work closely with cross-functional teams including product management, legal, security, backend engineers, and UX designers to define requirements and deliver solutions
Develop and execute comprehensive tests for blockchain protocols, smart contracts, and integrated systems to ensure reliability and correctness
Create clear and concise technical documentation for blockchain architecture, design, and implementation
Qualification
Required
Bachelor's or Master's degree in Computer Science, Software Engineering, or a related technical field
3+ years of professional software development experience
1+ years of hands-on experience in blockchain development, working with at least one major blockchain platform (e.g., Ethereum, Hyperledger Fabric, Corda, Polygon, Solana, Avalanche)
Experience with smart contract development and deployment (e.g., Solidity, Go, Rust)
Proficiency in at least one modern backend programming language (e.g., Node.js, Python, Go, Java)
Strong understanding of cryptographic principles (hashing, public-key cryptography, digital signatures)
Familiarity with decentralized application (DApp) development and blockchain tooling
Experience with cloud platforms (AWS, Azure, GCP) and CI/CD pipelines
Knowledge of database systems (SQL and NoSQL)
Proficiency with Git and collaborative development workflows
Excellent problem-solving and analytical abilities
Strong communication skills, able to explain complex technical concepts clearly
Collaborative mindset with experience working in agile environments
Attention to detail and a commitment to high-quality code
Benefits
Competitive compensation packages
401k with company match
Medical, dental, vision plans
Generous vacation policy, plus holidays
Company
The Nuclear Company
The Nuclear Company enables the deployment of nuclear power plants at fleet-scale by integrating government and industry partners.
51-200 employees
H1B Sponsorship
The Nuclear Company has a track record of offering H1B sponsorships. Please note that this does not
guarantee sponsorship for this specific role. Below presents additional info for your
reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2025 (1)
2024 (1)
Funding
Current Stage
Growth StageTotal Funding
$46.3MKey Investors
Eclipse
2025-05-15Series A· $46.3M
Recent News
2025-12-09
2025-10-10
Company data provided by crunchbase