Halliday · 3 months ago
Software Engineer
San Francisco, CA | New York, NY
Full-time
Onsite
Mid Level
$150K/yr - $190K/yrHalliday is a blockchain company and product lab focused on creating a unified payments ecosystem. As a Software Engineer, you will design and build core infrastructure for blockchain applications, collaborating with various teams to enhance the web3 ecosystem.
BlockchainFinTechWeb3
Responsibilities
Architect and build secure distributed systems that integrate blockchains, cryptography, decentralized finance, zero knowledge proofs, and many other bleeding edge technologies
Develop scalable services, APIs, and robust testing frameworks to support our platform
Utilize open-source blockchain SDKs to interact with various networks, protocols, and smart contracts
Contribute to the development and refinement of Halliday’s public SDKs, making it easy for developers to integrate with our services
Collaborate with cross-functional teams, including design, product, engineering, and business to build impactful solutions that advance the web3 ecosystem
Innovate and expand on our foundational cross-chain protocol
Continuously identify and implement improvements to enhance our platform's performance, security, and scalability
Qualification
Required
Experience as a software engineer, demonstrated through impactful projects such as developing scalable applications, building robust APIs, or contributing to widely-used libraries and frameworks
A quick learner with a passion for exploring new technologies and creating innovative solutions
A collaborative mindset and excellent problem-solving skills
Located in or willing to relocate to the San Francisco Bay Area or New York City
Preferred
Experience working with blockchain technologies, including EVM-based chains, Bitcoin, and/or Solana
Solid understanding of blockchain concepts, including smart contracts, cryptography, and decentralized applications
Familiarity with modern web services, cloud infrastructure, containerization, and deployment pipelines
Benefits
Unlimited PTO
Visa sponsorship
Company
Halliday
Halliday is a workflow protocol designed to automate workflows and manage reliability across various systems.
Founded in 2022
11-50 employees
H1B Sponsorship
Halliday 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)
2023 (1)
Funding
Current Stage
Early StageTotal Funding
$26MKey Investors
a16z crypto
2025-03-18Series A· $20M
2022-08-04Seed· $6M
Leadership Team
Griffin Dunaif
Co-Founder & CEO
Recent News
Cointelegraph
2025-10-31
2025-08-30
Company data provided by crunchbase