1,822 Blockchain Architect jobs in the United States
Lead Blockchain Architect - DeFi & Smart Contracts
Posted 7 days ago
Job Viewed
Job Description
Key Responsibilities:
- Design and architect scalable, secure, and decentralized blockchain solutions.
- Develop and audit high-quality smart contracts using Solidity and other relevant languages.
- Lead the development of DeFi protocols, including lending, borrowing, and exchange mechanisms.
- Implement and manage blockchain infrastructure, including node deployment and network configuration.
- Evaluate and integrate new blockchain technologies and protocols.
- Collaborate with product teams to define technical requirements and roadmaps.
- Conduct rigorous security reviews and implement best practices to mitigate vulnerabilities.
- Mentor junior blockchain developers and foster a culture of technical excellence.
- Stay up-to-date with the latest trends and innovations in the blockchain and cryptocurrency industry.
- Contribute to tokenomics design and economic modeling for decentralized systems.
Qualifications:
- Bachelor's or Master's degree in Computer Science, Engineering, or a related field.
- 5+ years of experience in software development, with at least 3 years focused on blockchain technology.
- Expertise in smart contract development (Solidity, Vyper) and deployment on platforms like Ethereum, Binance Smart Chain, etc.
- Strong understanding of cryptographic principles, distributed systems, and consensus algorithms.
- Experience designing and building DeFi applications and protocols.
- Proficiency in at least one backend programming language (e.g., Go, Rust, Node.js).
- Familiarity with blockchain security best practices and audit methodologies.
- Experience with decentralized application development tools and frameworks.
- Excellent problem-solving, analytical, and architectural design skills.
- Strong leadership and communication abilities, effective for remote team collaboration.
Blockchain Architect
Posted today
Job Viewed
Job Description
Blockchain Architect
The Role
As the Blockchain Architect, you will design and build software to manage and secure cryptocurrencies at Fidelity Digital Assets. This is a hands-on individual contributor leadership role that blends deep technical expertise with strategic thinking and cross-functional collaborations. You will be responsible for turning requirements into architectural designs and will engage with our chief architect and head of engineering to drive the overall architecture of the Fidelity Digital Assets platform. Job responsibilities include:
Blockchain Architecture: Design blockchain integrations across Fidelity Digital Assets systems, build on-chain functionality, integrate with DeFi protocols, and guide the future direction of products.
Engineering Enablement: Provide hands-on support to engineering teams to unblock critical paths, guide architectural and implementation decisions, and ensure consistency in design patterns.
-
Prototype Development: Rapidly prototype and validate new ideas, tools, or technologies to de-risk initiatives and inform product direction.
-
System Investigation: Partner with engineering to investigate root causes of complex system behaviors, performance bottlenecks, and integration challenges.
-
Code Quality Leadership: Conduct high-quality pull request reviews across teams to uphold engineering excellence and consistency.
-
Technical Roadmap Influence: Collaborate closely with product and engineering leadership to shape and influence the technical roadmap.
The Expertise and Skills You Bring
Bachelors degree in computer science or related field with 10+ years of experience
Blockchain & Smart Contracts
Deep technical familiarity and production experience with at least one public blockchain protocol such as Ethereum or Solana
Experience writing and deploying production smart contracts
Knowledge of DeFi yield protocols
A strong interest in cryptocurrencies, blockchain interoperability protocols, and a passion for keeping up to date in the space
Software Engineering & Architecture
Proficiency in at least one backend programming language, with a willingness to learn Rust and Java
Experience with asynchronous workers and resilient messaging services
Ability to build reliable software that can withstand unreliable environments
Proficient in SQL with working knowledge of database technologies such as Aurora PostgreSQL
Leadership & Collaboration
Proven ability to guide and mentor engineering teams
Experience collaborating with leadership and cross-functional stakeholders
DevOps & Testing
Experience building and deploying applications using continuous integration pipelines and automated deployment tools such as Jenkins
Strong background in unit and integration testing
The Team
Fidelity Digital Assets , a Fidelity Investments Company, is developing a full-service enterprise-grade platform for storing, trading, and servicing digital assets, such as Bitcoin and Ethereum.
Fidelity Digital Assets embraces an entrepreneurial culture and startup mindset while serving as one of the most innovative business units within Fidelity Investments. Our global, diverse team of hundreds of forward-thinking professionals lead with agility and creativity to build solutions that bridge the gap between traditional institutional investors and their exposure to digital assets. The firms tenure and experience across multiple business lines present our employees with unprecedented access to knowledge, technology, and resources that help our team reshape the future of finance.
Within Fidelity Digital Assets, the Architecture Team is responsible for the technical vision across Fidelity Digital Assets. The team works with both technology and business teams to design secure, scalable, resilient cloud-based services while ensuring that user requirements are met.
The base salary range for this position is $140,000-$249,000 per year.Placement in the range will vary based on job responsibilities and scope, geographic location, candidates relevant experience, and other factors.
Base salary is only part of the total compensation package. Depending on the position and eligibility requirements, the offer package may also include bonus or other variable compensation.
We offer a wide range of benefits to meet your evolving needs and help you live your best life at work and at home. These benefits include comprehensive health care coverage and emotional well-being support, market-leading retirement, generous paid time off and parental leave, charitable giving employee match program, and educational assistance including student loan repayment, tuition reimbursement, and learning resources to develop your career. Note, the application window closes when the position is filled or unposted.
Please be advised that Fidelitys business is governed by the provisions of the Securities Exchange Act of 1934, the Investment Advisers Act of 1940, the Investment Company Act of 1940, ERISA, numerous state laws governing securities, investment and retirement-related financial activities and the rules and regulations of numerous self-regulatory organizations, including FINRA, among others. Those laws and regulations may restrict Fidelity from hiring and/or associating with individuals with certain Criminal Histories.
Most roles at Fidelity are Hybrid, requiring associates to work onsite every other week (all business days, M-F) in a Fidelity office. This does not apply to Remote or fully Onsite roles.
Certifications: Category: Information TechnologyBlockchain Architect
Posted today
Job Viewed
Job Description
Blockchain Architect
The Role
As the Blockchain Architect, you will design and build software to manage and secure cryptocurrencies at Fidelity Digital Assets. This is a hands-on individual contributor leadership role that blends deep technical expertise with strategic thinking and cross-functional collaborations. You will be responsible for turning requirements into architectural designs and will engage with our chief architect and head of engineering to drive the overall architecture of the Fidelity Digital Assets platform. Job responsibilities include:
Blockchain Architecture: Design blockchain integrations across Fidelity Digital Assets systems, build on-chain functionality, integrate with DeFi protocols, and guide the future direction of products.
Engineering Enablement: Provide hands-on support to engineering teams to unblock critical paths, guide architectural and implementation decisions, and ensure consistency in design patterns.
-
Prototype Development: Rapidly prototype and validate new ideas, tools, or technologies to de-risk initiatives and inform product direction.
-
System Investigation: Partner with engineering to investigate root causes of complex system behaviors, performance bottlenecks, and integration challenges.
-
Code Quality Leadership: Conduct high-quality pull request reviews across teams to uphold engineering excellence and consistency.
-
Technical Roadmap Influence: Collaborate closely with product and engineering leadership to shape and influence the technical roadmap.
The Expertise and Skills You Bring
Bachelors degree in computer science or related field with 10+ years of experience
Blockchain & Smart Contracts
Deep technical familiarity and production experience with at least one public blockchain protocol such as Ethereum or Solana
Experience writing and deploying production smart contracts
Knowledge of DeFi yield protocols
A strong interest in cryptocurrencies, blockchain interoperability protocols, and a passion for keeping up to date in the space
Software Engineering & Architecture
Proficiency in at least one backend programming language, with a willingness to learn Rust and Java
Experience with asynchronous workers and resilient messaging services
Ability to build reliable software that can withstand unreliable environments
Proficient in SQL with working knowledge of database technologies such as Aurora PostgreSQL
Leadership & Collaboration
Proven ability to guide and mentor engineering teams
Experience collaborating with leadership and cross-functional stakeholders
DevOps & Testing
Experience building and deploying applications using continuous integration pipelines and automated deployment tools such as Jenkins
Strong background in unit and integration testing
The Team
Fidelity Digital Assets , a Fidelity Investments Company, is developing a full-service enterprise-grade platform for storing, trading, and servicing digital assets, such as Bitcoin and Ethereum.
Fidelity Digital Assets embraces an entrepreneurial culture and startup mindset while serving as one of the most innovative business units within Fidelity Investments. Our global, diverse team of hundreds of forward-thinking professionals lead with agility and creativity to build solutions that bridge the gap between traditional institutional investors and their exposure to digital assets. The firms tenure and experience across multiple business lines present our employees with unprecedented access to knowledge, technology, and resources that help our team reshape the future of finance.
Within Fidelity Digital Assets, the Architecture Team is responsible for the technical vision across Fidelity Digital Assets. The team works with both technology and business teams to design secure, scalable, resilient cloud-based services while ensuring that user requirements are met.
The base salary range for this position is $140,000-$249,000 per year.Placement in the range will vary based on job responsibilities and scope, geographic location, candidates relevant experience, and other factors.
Base salary is only part of the total compensation package. Depending on the position and eligibility requirements, the offer package may also include bonus or other variable compensation.
We offer a wide range of benefits to meet your evolving needs and help you live your best life at work and at home. These benefits include comprehensive health care coverage and emotional well-being support, market-leading retirement, generous paid time off and parental leave, charitable giving employee match program, and educational assistance including student loan repayment, tuition reimbursement, and learning resources to develop your career. Note, the application window closes when the position is filled or unposted.
Please be advised that Fidelitys business is governed by the provisions of the Securities Exchange Act of 1934, the Investment Advisers Act of 1940, the Investment Company Act of 1940, ERISA, numerous state laws governing securities, investment and retirement-related financial activities and the rules and regulations of numerous self-regulatory organizations, including FINRA, among others. Those laws and regulations may restrict Fidelity from hiring and/or associating with individuals with certain Criminal Histories.
Most roles at Fidelity are Hybrid, requiring associates to work onsite every other week (all business days, M-F) in a Fidelity office. This does not apply to Remote or fully Onsite roles.
Certifications: Category: Information TechnologyBlockchain Architect
Posted 4 days ago
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Job Description
Blockchain Architect
Posted 7 days ago
Job Viewed
Job Description
Key responsibilities include:
- Designing and architecting enterprise-grade blockchain solutions and distributed ledger technologies.
- Developing and implementing smart contracts on various blockchain platforms (e.g., Ethereum, Hyperledger Fabric).
- Evaluating and selecting appropriate blockchain technologies and frameworks for specific project requirements.
- Collaborating with product managers, developers, and stakeholders to define technical requirements and roadmaps.
- Ensuring the security, scalability, and performance of blockchain networks and applications.
- Providing technical leadership and guidance to development teams throughout the project lifecycle.
- Conducting research on emerging blockchain trends, tools, and protocols.
- Developing proofs-of-concept and prototypes to validate new blockchain solutions.
- Creating comprehensive technical documentation and architectural diagrams.
- Staying abreast of regulatory changes and industry best practices in the blockchain space.
Blockchain Architect
Posted 7 days ago
Job Viewed
Job Description
Key Responsibilities:
- Design and architect enterprise-grade blockchain solutions, including private, public, and consortium blockchains.
- Develop and implement smart contracts on platforms such as Ethereum, Hyperledger Fabric, or similar.
- Define the technical roadmap and technical specifications for blockchain projects.
- Evaluate and select appropriate blockchain technologies, consensus mechanisms, and tools.
- Ensure the security, scalability, and performance of blockchain networks and applications.
- Collaborate with cross-functional teams to define blockchain strategies and integration plans.
- Develop Proofs of Concept (PoCs) and prototypes for new blockchain applications.
- Provide technical leadership and guidance on blockchain best practices.
- Stay abreast of the latest developments and emerging trends in the blockchain and cryptocurrency space.
- Contribute to technical documentation and knowledge sharing.
- Bachelor's or Master's degree in Computer Science, Engineering, or a related field.
- Proven experience as a Blockchain Architect or Lead Developer.
- In-depth knowledge of major blockchain platforms (e.g., Ethereum, Bitcoin, Hyperledger Fabric, Solana).
- Strong understanding of smart contract development (Solidity, Go, Rust).
- Expertise in cryptography, consensus algorithms, and distributed ledger technologies.
- Experience with cloud platforms (AWS, Azure, GCP) and their integration with blockchain solutions.
- Familiarity with security best practices for blockchain development.
- Excellent problem-solving and analytical skills.
- Strong communication and collaboration skills, with the ability to explain complex technical concepts.
- Experience with decentralized applications (dApps) and DeFi protocols is a plus.
Blockchain Architect
Posted 7 days ago
Job Viewed
Job Description
The ideal candidate will possess a deep understanding of blockchain protocols, consensus mechanisms, cryptography, and tokenomics. You will work closely with engineering, product, and business development teams to translate complex requirements into robust blockchain architectures. This position offers a hybrid work model, combining the benefits of in-office collaboration with the flexibility of remote work.
Key Responsibilities:
- Define and architect the overall blockchain strategy and roadmap.
- Design and develop secure, scalable, and efficient smart contracts using languages like Solidity.
- Evaluate and select appropriate blockchain platforms and technologies (e.g., Ethereum, Hyperledger Fabric, Polkadot).
- Develop technical specifications and documentation for blockchain solutions.
- Oversee the implementation and deployment of blockchain networks and dApps.
- Ensure the security and integrity of blockchain systems through rigorous testing and audits.
- Stay abreast of the latest advancements in blockchain technology, cryptocurrencies, and decentralized finance (DeFi).
- Provide technical leadership and mentorship to blockchain development teams.
- Collaborate with cross-functional teams to identify new opportunities for blockchain integration.
- Assess and mitigate risks associated with blockchain implementations.
- Bachelor's or Master's degree in Computer Science, Cryptography, or a related field.
- 5+ years of experience in software development, with a significant focus on blockchain technology (3+ years directly in blockchain architecture).
- Proven experience designing and implementing smart contracts and dApps.
- In-depth knowledge of various blockchain protocols, consensus algorithms, and cryptographic principles.
- Proficiency in Solidity, Rust, or other smart contract programming languages.
- Experience with cloud environments and distributed systems.
- Strong understanding of tokenomics and decentralized finance (DeFi) concepts.
- Excellent analytical, problem-solving, and communication skills.
- Ability to work effectively in a hybrid team environment.
- Experience with enterprise blockchain solutions is a plus.
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Blockchain Architect
Posted 7 days ago
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Job Description
Chief Blockchain Architect
Posted today
Job Viewed
Job Description
We're a digital entertainment company creating engaging online platforms people love. Since 2021, we've been building something different. Our brands include MetaWin, WOW Vegas, BetZoo Media, and Rolla with more to come.
Arena prioritises the use of innovative technology, decentralised where possible and builds with an AI first mindset to create the highest quality end product for our users. Not challenged by legacy systems, we are blue sky thinkers changing the landscape of digital entertainment.
Overview
We're hiring a Chief Blockchain Architect to design and deliver a next-generation Layer 1 blockchain. You'll be responsible for architecting and implementing high-performance distributed systems, capable of handling millions of transactions with sub-second finality.
This is a hands-on architect role: you must be able to design from first principles, build core consensus and execution logic in Rust, and either develop a new L1 or fork and evolve an existing high-performance chain such as Sui.
Candidate Profile
Experience: 8-12+ years in systems programming, blockchain infrastructure, or distributed systems engineering.
Deep Expertise: Rust, consensus algorithms, parallel execution engines, validator networks, cryptography.
Blockchain DNA: Contributed to or forked major L1/L2 projects (Sui, Solana, Cosmos, Ethereum, Aptos, Hyperliquid).
Visionary Builder: Proven ability to design systems that scale to millions of daily transactions.
Claude-First: Comfortable using Claude AI for system design, code generation, audits, and debugging.
Cultural Fit: Outcome-driven, thrives in high-pressure, high-reward startup environments.
Technical Stack / Core Skills
Rust: Expert-level, for consensus and execution engine development.
Move: Familiarity with Move-based smart contract platforms (Sui, Aptos).
Solidity/EVM: Knowledge of EVM standards for interoperability.
Consensus: Experience with Proof-of-Stake, parallel execution, and randomness.
Infrastructure: Validator/node software, networking, sharding, storage layers.
Security: Strong understanding of consensus exploits, cryptographic security, and audit practices.
Tooling: SDKs, APIs, developer environments, block explorers.
Responsibilities
Architect and deliver a new Layer 1 blockchain or evolve an existing fork (e.g. Sui).
Lead the design of consensus, execution, and validator models with sub-second finality.
Define and implement protocol-level tokenomics and staking mechanics.
Design and build secure cross-chain bridges to Ethereum, Solana, and other ecosystems.
Establish coding standards and technical roadmap for the blockchain team.
Use and evangelize Claude-assisted workflows to accelerate architecture and development.
Recruit, mentor, and lead a team of world-class Rust/blockchain engineers.
What We Offer
- Autonomy: ability to move fast and ship without red tape.
- A chance to build one of the world's fastest and most scalable blockchains from the ground up.
- Authority and ownership: you will define and own the technical direction of the chain.
- Competitive compensation with major equity/token upside.
Our brands Arena HQ Locations Miami, London Remote status Hybrid
Lead Blockchain Architect
Posted 3 days ago
Job Viewed
Job Description
Lead Blockchain Architect
About the Company
Join a forward-thinking blockchain and gaming ecosystem that is shaping the future of digital entertainment.
Industry
Computer Software
Type
Privately Held
About the Role
We are looking for a visionary Lead Blockchain Architect to spearhead the development of our next-generation blockchain and gaming platform. In this key leadership position, you will design a high-throughput and low-latency blockchain capable of supporting massive parallel execution for large-scale gaming applications. Your expertise will guide the blockchain architecture, ecosystem infrastructure development, and innovation in tooling, while collaborating with cross-functional teams to bring our vision to life.
As a founding member of our leadership team, you will also recruit, mentor, and lead a talented blockchain engineering team. We seek candidates with a proven track record in blockchain infrastructure projects, demonstrating deep expertise in consensus algorithms, distributed systems, and smart contract platforms. A strong background in scaling blockchain performance, with hands-on experience in performance-critical programming languages, is crucial. Familiarity with regulatory and compliance frameworks is essential for this role.
We value innovation and entrepreneurial spirit; hence, candidates should thrive in a high-growth environment. While not mandatory, experience in gaming or entertainment infrastructure, knowledge of cryptography, zero-knowledge proofs, or secure multi-party computation, as well as familiarity with AI-driven systems or developer tool ecosystems, will be advantageous.
Travel Percent
Less than 10%
Functions
- Finance