blockchain developer Jobs in new york, ny

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Senior Blockchain Developer

Jobot

New York, New York, USA

Full-time

Growing startup is looking for a Senior Software Engineer skilled in Node, TypeScript, React, & AWS! This Jobot Job is hosted by: Sydney Weaver Are you a fit? Easy Apply now by clicking the "Apply Now" button and sending us your resume. Salary: $150,000 - $250,000 per year A bit about us: Growing startup in NYC is looking for Senior Software Developers to join their dynamic, growing team! This startup is backed by venture firms with a combined asset base exceeding $15 billion. Founded by form

Blockchain Architect

Softova Inc

Jersey City, New Jersey, USA

Third Party, Contract

Title - Blockchain ArchitectLocation - Jersey City, Tampa, FL or Dallas, TX (Hybrid) Duration Contract Job Description:We are seeking a highly skilled and experienced Blockchain Architect to join our team. The ideal candidate will possess a strong understanding of blockchain protocols, cryptographic principles, digital currencies, and various facets of decentralized finance (DeFi). This role demands proficiency in blockchain security, token standards, and extensive experience with both on-cha

Blockchain QA Engineer (Hybrid NYC)

Motion Recruitment Partners, LLC

New York, New York, USA

Full-time

Blockchain QA Engineer (Hybrid) Location: NYC ** Must be located and authorized to work here in the US, without sponsorship or transfer needed in the future. No C2C inquires, please. ** Our client is a leading innovator in the blockchain space, building core infrastructure for decentralized networks. Their work powers a wide range of next-generation financial applications, using advanced protocol-level engineering to enable secure, scalable, and efficient blockchain solutions. With a focus on pe

Blockchain Interoperability Engineer

Cogent IBS, Inc

Remote

Full-time

Location: USA (Remote with occasional travel to MI & VA) Full-Time | Salaried with Cogent ( / / H1B / TN Visa transfer ) Role Overview: Design and maintain secure, performant cross-chain communication protocols to enable seamless token transfers, staking, and verification across blockchain ecosystems. Key Responsibilities: Develop and implement bridge logic and cross-chain messaging layers (e.g., IBC, Layer Zero).Ensure reliable token movement, validator coordination, and proof validation acr

Blockchain Security Architect

Kforce Technology Staffing

Remote or Orlando, Florida, USA

Contract

RESPONSIBILITIES: A client with Kforce is seeking a Blockchain Security Architect (Senior Blockchain Developer- Security focus) to join their team in Orlando, FL. The Manager is looking for someone who is hands-on, as this position will be responsible for designing the CRYO Wall runtime environment and embedding a prevention-first security model into both blockchain infrastructure and wallet layers. This role requires deep expertise in blockchain technologies, security architecture, and runtime

Front-End Blockchain UX Engineer

Cogent IBS, Inc

Remote

Full-time

Requirement: 46 years of front-end development (React, Vue, or similar), with 2+ years building Web3/blockchain interfaces (Mandatory). Strong grasp of wallet flows, transaction signing, and decentralized app architecture. Experience with blockchain APIs, real-time data streams, and UX for trust and security.

AI/ML Runtime Analyst

Cogent IBS, Inc

Remote

Full-time

Location: USA (Remote with occasional travel to MI & VA) Full-Time | Salaried with Cogent Job Summary: We are seeking a skilled AI/ML Runtime Analyst to develop and implement machine learning models that detect fraud, bugs, and exploits within the runtime behavior of smart contracts and blockchain transactions. The ideal candidate will combine expertise in AI/ML with a strong understanding of blockchain technology to enhance security and trust in decentralized systems. This role specifically fo

Blockchain Security Architect

Cogent IBS, Inc

Remote

Full-time

Required: 7+ years of experience in security architecture or cybersecurity roles, including 3 5 years in blockchain security, runtime environment design, or related domains. Proven experience designing secure blockchain runtime environments or similar distributed systems. Strong understanding of blockchain protocols, cryptographic primitives, smart contracts, and wallet security models. Expertise in security architecture frameworks, threat modeling, and prevention-first security strategies.

Back-End Blockchain UX Engineer

Cogent IBS, Inc

Remote

Full-time

Location: USA (Remote with occasional travel to MI & VA) Full-Time | Salaried with Cogent Required Qualifications 3+ years of experience in backend development, with at least 1 year focused on blockchain or crypto wallet projects (Mandatory) Proficiency in backend programming languages such as Python, Node.js, Go, or Rust Experience with blockchain technologies, including integrating with public blockchains, smart contracts, and Web3 libraries (Mandatory) Solid understanding of RESTful API des

Associate Director Blockchain Engineering

DTCC

Jersey City, New Jersey, USA

Full-time

Are you ready to make an impact at DTCC? Do you want to work on innovative projects, collaborate with a dynamic and supportive team, and receive investment in your professional development? At DTCC, we are at the forefront of innovation in the financial markets. We're committed to helping our employees grow and succeed. We believe that you have the skills and drive to make a real impact. We foster a thriving internal community and are committed to creating a workplace that looks like the world t

Lead Wallet Engineer (Blockchain) - Remote

Kforce Technology Staffing

Remote or Orlando, Florida, USA

Contract

RESPONSIBILITIES: A client with Kforce is seeking a Lead Wallet Engineer (Senior Blockchain Engineer) to join their team. This is a remote position, and the resource must be able to work EST hours. Summary: The Lead Wallet Engineer should have 7-10 years of software engineering experience, including 2-4 years in blockchain wallet development, to lead the architecture and implementation of next-generation wallet solutions. This role focuses on integrating wallet logic with runtime security valid

Senior Blockchain Security Engineer

Bank Of New York Mellon

New York, New York, USA

Full-time

Senior Blockchain Security Engineer At BNY, our culture empowers you to grow and succeed. As a leading global financial services company at the center of the world's financial system we touch nearly 20% of the world's investible assets. Every day around the globe, our 50,000+ employees bring the power of their perspective to the table to create solutions with our clients that benefit businesses, communities and people everywhere. We continue to be a leader in the industry, awarded as a top home

Blockchain Forensics Analyst (Security Analyst)

Cogent IBS, Inc

Remote

Full-time

Job Description: We are seeking a highly skilled and detail-oriented Blockchain Forensics Analyst/Security Analyst who can join our security and compliance team. In this critical role, you will lead post-execution forensic investigations on blockchain transactions and smart contracts to detect anomalies, fraudulent behavior, and trust violations. Your expertise will drive the integrity and trustworthiness of our decentralized ecosystem by uncovering threats, supporting incident response, and st

Front-End Blockchain UX Engineer - Remote

Kforce Technology Staffing

Remote or Orlando, Florida, USA

Contract

RESPONSIBILITIES: A client with Kforce is seeking a Front-End Blockchain UX Engineer to join their team remotely. They are seeking someone with 6-8 years of experience in front-end development, including relevant experience building Web3 or blockchain-enabled interfaces. This role focuses on designing wallet and dashboard experiences that embed trust, security, and transparency into every interaction. Key Responsibilities: * Build wallet/dashboard UI with embedded trust and verification workflo

AI/ML Runtime Analyst (Backend Developer) - Remote

Kforce Technology Staffing

Remote or Orlando, Florida, USA

Contract

RESPONSIBILITIES: A client with Kforce is seeking an AI/ML Runtime Analyst (Backend Developer) to join their team. This is a remote position, and the resource must be able to work EST hours. This client is looking for someone with strong backend development skills to develop and operationalize machine learning models that detect fraud, bugs, and exploits in the runtime behavior of smart contracts and blockchain transactions. The ideal candidate will bring experience in anomaly detection and secu

Senior Blockchain Security Engineer

Coinbase

Remote

Full-time

Ready to be pushed beyond what you think you're capable of? At Coinbase, our mission is to increase economic freedom in the world. It's a massive, ambitious opportunity that demands the best of us, every day, as we build the emerging onchain platform - and with it, the future global financial system. To achieve our mission, we're seeking a very specific candidate. We want someone who is passionate about our mission and who believes in the power of crypto and blockchain technology to update the

Blockchain Security Engineer

Coinbase

Remote

Full-time

Ready to be pushed beyond what you think you're capable of? At Coinbase, our mission is to increase economic freedom in the world. It's a massive, ambitious opportunity that demands the best of us, every day, as we build the emerging onchain platform - and with it, the future global financial system. To achieve our mission, we're seeking a very specific candidate. We want someone who is passionate about our mission and who believes in the power of crypto and blockchain technology to update the

Senior Blockchain Security Engineer

Coinbase

Remote

Full-time

Ready to be pushed beyond what you think you're capable of? At Coinbase, our mission is to increase economic freedom in the world. It's a massive, ambitious opportunity that demands the best of us, every day, as we build the emerging onchain platform - and with it, the future global financial system. To achieve our mission, we're seeking a very specific candidate. We want someone who is passionate about our mission and who believes in the power of crypto and blockchain technology to update the

Senior Blockchain Security Engineer

Coinbase

Remote

Full-time

Ready to be pushed beyond what you think you're capable of? At Coinbase, our mission is to increase economic freedom in the world. It's a massive, ambitious opportunity that demands the best of us, every day, as we build the emerging onchain platform - and with it, the future global financial system. To achieve our mission, we're seeking a very specific candidate. We want someone who is passionate about our mission and who believes in the power of crypto and blockchain technology to update the

Senior Software Engineer (Platform - Blockchain Platform Nodes)

Coinbase

Remote

Full-time

Ready to be pushed beyond what you think you're capable of? At Coinbase, our mission is to increase economic freedom in the world. It's a massive, ambitious opportunity that demands the best of us, every day, as we build the emerging onchain platform - and with it, the future global financial system. To achieve our mission, we're seeking a very specific candidate. We want someone who is passionate about our mission and who believes in the power of crypto and blockchain technology to update the