--- title: 'Blockchain Engineer at Harmony' canonical: 'https://feeny.ai/job/blockchain-engineer-harmony-palo-alto-faqp0f6dgdfr' type: 'job' last_seen: '2026-09-11' --- # Blockchain Engineer at Harmony - **Company:** Harmony - **Location:** Palo Alto, CA - **Work type:** onsite - **Posted:** 2024-04-03 - **Last confirmed live:** 2026-09-11 - **Apply:** https://jobs.lever.co/harmony/e6d9d9d8-ec2a-4691-9efe-9810ca25a99e ## Job description Harmony is an open blockchain with data sharding and fast finality. Social games and community AI can use our onchain tokens for micro-payments, smart contracts for market pricing, and zero-knowledge proofs for data privacy. Harmony’s mission is to scale trust and create a radically fair economy. Our platform is decentralized, scalable and secure to settle any transactions without trusted parties. 🚀 Building a (Rocket)Ship We are a Day-1 startup. Blockchains are becoming the foundation of the global economy, yet their adoption is at only 1%. That means that you as a pioneer and developer are shaping the future with 10X impact. Harmony is a community-driven project, a network with hundreds of applications, and a team wearing crazy ambitions on their sleeves. Because the invincible summer awaits! For engineers, we value your deep understanding of how bytes work. You are a tool maker, a system hacker, and a math nerd all in ONE. Your typical day involves prototyping a top-conference research paper, debugging and profiling in hexdecimal, or writing updates to coordinate asynchronously with tens of engineers in the open. Building a blockchain is like jumping off the cliff while assembling the plane engine on the fly – but, if you can thrive in chaos, why NOT? For creatives, we approve your obsession with user experience. You are a product designer, a brand manager, and an industry analyst all in ONE. Your typical day involves studying what delights and what hurts through hard metrics, writing long-form narratives on the why's and the do's, or scrumming tasks for a product launch to iterate with millions of users. Building a community is like sharing your blue heart while keeping the culture alive for decades – but, if this is your dream of 50 years, start NOW? 💙 See our project vision on Social A(G)I and Shard 1. ## Responsibilities - Develop a blockchain with high security, scalability and decentralization. - Operate a network of 1000 nodes and $500M assets in open development. - Optimize 100M requests per second at $250K monthly operational cost. ## Requirements - Bachelor degree in computer science – specializing in kernel, data structures or compilers. - 5 to 10 years of working experience including 1 year of startup experience. - 60-hour work week, daily 4-hour overlap with Pacific Time. - Exceptional communication and people skills. ## About Harmony ## Company Overview - **One-liner**: Harmony is an open, fast blockchain platform that uses sharding and zero-knowledge proofs to scale trust and enable decentralized applications, micro-payments, and agentic AI. - **Entity Type**: Private (funding stage: Seed & Venture rounds; also conducted an Initial Coin Offering) - **Headquarters**: Mountain View, California, United States (with offices in Sunnyvale, Cupertino, and Palo Alto) - **Founded**: 2018 - **Founders**: Not publicly available ## Core Business - **Primary industry**: Blockchain infrastructure / Layer-1 protocol - **Target customers**: Developers building decentralized applications (DeFi, NFTs, gaming, supply chain), enterprises needing tokenized marketplaces, and data consortia requiring privacy-preserving data sharing - **Mission or purpose**: “To scale trust and create a radically fair economy” by providing a decentralized, scalable, and secure platform for settling transactions without trusted third parties ## Products & Services - **Harmony Mainnet**: A sharded, proof-of-stake blockchain achieving 2-second finality with low fees, fully compatible with Ethereum applications. - **Swap (Uniswap v3 fork)**: Capital-efficient liquidity pools for decentralized token swaps. - **Layer Zero Bridge**: Secure, cross-chain asset transfers between Harmony and other blockchains. - **Timeless Wallet**: Native mobile and social wallet for end users. - **Staking & EPoS**: Effective Proof-of-Stake mechanism that reduces centralization and distributes rewards fairly among validators and delegators. - **Zero-Knowledge Proofs (ZK)**: Applied for data privacy in use cases like ad exchanges, credit ratings, and data consortia. ## Market Standing - **Valuation/Market Cap**: Not disclosed (private company) - **Key Metric**: Annual Revenue $4M (as per LinkedIn data); Total Funding $18M (Seed round in April 2019, Venture round in May 2019, plus an ICO in September 2019) - **Notable Investors/Partners**: Seed round had 7 investors; Venture round had 3 investors; ICO had 1 investor (specific names not listed in available data). Launched on Binance in early mainnet phase. - **Growth Signals**: Workforce of 43 employees (11–50 range) with monthly headcount growth of +4.3%. Distributed across 25 countries. Active job postings: 4 (Network Engineer, Software Engineer, Blockchain Engineer, Systems Engineer). Quarterly job posting trend declined 60%, but still hiring for senior roles. ## Competitive Advantages - **Secure, Random State Sharding**: Solves the blockchain trilemma by scaling linearly in machines, transactions, and storage without compromising security or decentralization. Each shard has 250 nodes with VDF-based randomness for unbiased shard membership. - **Fast BFT Consensus**: 2-second block time with instant finality using BLS constant-sized signatures and view changes. - **Effective Proof-of-Stake (EPoS)**: Reduces centralization, supports delegation and reward compounding, and slashes misbehaving validators. - **Zero-Knowledge Proof Integration**: Enables privacy-preserving data sharing for enterprise consortia. ## Strategic Focus - Continue scaling the network and expanding the ecosystem of dApps, DeFi, and NFT marketplaces. - Develop onchain micro-payment and agentic AI use cases using ONE tokens and smart contracts. - Grow the validator set and community governance while maintaining 100% uptime and low inflation (target ~3% annual issuance with fee burn). - Recruit top-tier Rust/Go engineers, protocol researchers, and database hackers to drive protocol innovation. ## Why Work Here - **Culture**: Described as a “Day-1 startup” where engineers shape the future with 10X impact. Values empathy, passion, and excellence. Communication is extensive and open (asynchronous writing, open development). - **Work Policy**: On-site in Palo Alto, CA (full-time 5 days in office). Remote options also listed for some roles, but most positions require in-office presence. - **Perks**: Full medical coverage, maximum 401K matching, 15-day annual vacation. Opportunity to work on cutting-edge blockchain research (prototyping top-conference papers, debugging in hex, etc.). - **Engineering Culture**: Deep understanding of bytes and systems; tool makers, system hackers, and math nerds. Typical day involves prototyping research papers, debugging, and coordinating with tens of engineers in the open. - **Open Roles**: Network Engineer, Software Engineer, Blockchain Engineer, Systems Engineer, Research Engineer, AI Backend Engineer, Product Designers and Managers. Senior positions available. - **Ratings**: Employer rating 3.9/5.0 (2 reviews) – Culture 4.5, Compensation 3.9, Work-Life 3.4, Career 3.4. ## Sources 1. [harmony.one](https://www.harmony.one/) 2. [jobs.lever.co/harmony](https://jobs.lever.co/harmony) 3. [linkedin.com/company/harmony-one](https://www.linkedin.com/company/harmony-one) 4. [open.harmony.one (Yearn for the Vast and Endless Web3)](https://open.harmony.one/yearn-for-vast-and-endless-sea) 5. [open.harmony.one (Our Empathy, Passion & Excellence)](https://open.harmony.one/our-empathy-passion-excellence) ## Other roles at Harmony - [Software Engineer](https://feeny.ai/job/software-engineer-harmony-palo-alto-wh06d0h569vw) — Palo Alto, CA - [Community Manager](https://feeny.ai/job/community-manager-harmony-palo-alto-9vy9zcr4bp96) — Palo Alto, CA - [Product Manager](https://feeny.ai/job/product-manager-harmony-palo-alto-2hkhyhamk5gb) — Palo Alto, CA - [Project Manager](https://feeny.ai/job/project-manager-harmony-palo-alto-h40j832aj0px) — Palo Alto, CA - [Marketing Lead](https://feeny.ai/job/marketing-lead-harmony-palo-alto-wn9vjh1n9pmy) — Palo Alto, CA - [Operations Lead](https://feeny.ai/job/operations-lead-harmony-palo-alto-ecm0gz1h7rbt) — Palo Alto, CA - [Network Engineer](https://feeny.ai/job/network-engineer-harmony-palo-alto-d1g891yxvg08) — Palo Alto, CA - [Systems Engineer](https://feeny.ai/job/systems-engineer-harmony-palo-alto-6hskn6dp4ja8) — Palo Alto, CA - [Blockchain Engineer](https://feeny.ai/job/blockchain-engineer-key-to-web3-remote-tx6nfa9armb4)