Develop core backend infrastructure for blockchain execution and Ethereum scaling.
Tackle distributed systems challenges involving reliability, performance, and scalability.
Strengthen security and drive projects from investigation through implementation.
They build foundational infrastructure for Ethereum scalability, security, and decentralized applications. They are a remote-first, globally distributed team collaborating across research, product, and blockchain engineering.
Design, develop, and maintain high-performance systems ensuring system rationality and reliability.
Collaborate with the team to shape technical architectures and drive innovative solutions.
Stay updated with emerging technologies and apply blockchain knowledge to the Web3 Wallet DEX project.
We are a leading global blockchain ecosystem behind the world's largest cryptocurrency exchange by trading volume and registered users. We are trusted by 300+ million people in 100+ countries for our industry-leading security and deep liquidity.
Define and own the strategy and roadmap for the unified remote workspace, spanning collaboration, identity, and zero-trust access.
Lead the enterprise collaboration and productivity platform, securely embedding AI features like summarization and transcription.
Manage a global zero-trust access platform, oversee offensive security, vulnerability management, and incident response.
Binance is a leading global blockchain ecosystem behind the world's largest cryptocurrency exchange. We serve 300+ million people in 100+ countries with secure, transparent digital-asset products and a culture focused on advancing financial freedom.
Build and operate reliable Kubernetes and cloud infrastructure for production blockchain and backend workloads.
Improve the reliability and operational resilience of blockchain RPC and node infrastructure.
Develop and maintain production Go and backend systems that underpin reliable infrastructure operations.
Chainlink is the industry-standard oracle platform bringing capital markets onchain and powering decentralized finance. Its stack enables tens of trillions in transaction value and secures the majority of DeFi, with adoption from major financial institutions and protocols.
Deeply research new cryptoassets and integrate them into Anchorage Digital's platform.
Implement participatory features like staking, governance, and vesting.
Develop infrastructure that scales across all crypto-networks and support assets through upgrades.
Anchorage Digital is a crypto platform that enables institutions to participate in digital assets through custody, staking, trading, governance, settlement, and security infrastructure. With a diverse team of over 600 members, they are united in building the future of finance, and are committed to being a welcoming and inclusive workplace.
Build and evolve core components of a distributed transaction platform for secure cryptocurrency transfers.
Improve scalability, data integrity, and tenant isolation in a regulated environment.
Mentor engineers and take end-to-end ownership of production systems, including incident response.
They build a mission-critical transaction platform for secure cryptocurrency transfers between financial institutions, fintechs, and exchanges. The organization is remote-first, collaborative, and inclusive, with a strong focus on engineering quality and mentorship.
Improve automated security assurance workflows to reduce manual effort and increase consistency.
Streamline collection and analysis of security evidence to improve audit readiness and visibility.
Enhance efficiency of access reviews, control testing, and risk assessments through technical automation.
Chainlink is the industry-standard oracle platform bringing capital markets onchain and powering decentralized finance. It has enabled tens of trillions in transaction value and is adopted by major financial institutions and protocols, with a remote-first culture.
Contribute as a freelance specialist to blockchain infrastructure and protocol projects aligned with your expertise.
Design, develop, test, and maintain production-grade blockchain systems and distributed networks.
Solve complex challenges in security, privacy, scalability, cryptography, and consensus protocols.
Jobgether is a talent network connecting experienced blockchain engineers with high-impact infrastructure projects across the decentralized web. It fosters a remote-first, self-directed culture with support from engineering leads and a vetted community of specialists.
Own and run bug bounty programs and external audit engagements, triaging and validating fixes.
Secure code and software supply chain, including CI/CD defenses, dependency controls, and signing.
Build anti-scam, anti-abuse, and security tooling with static/dynamic analysis and LLM-driven agents.
Mysten Labs builds foundational blockchain infrastructure and products, including Sui and Move, to advance the internet and enable the agent economy. It is a remote-first, world-class team backed by a $300M Series B from leading venture funds.
Develop and evolve high-performance microservices using Go for backend security and fraud prevention.
Implement scalable, resilient, observable services that process device integrity signals and prevent fraud.
Collaborate with security, architecture, and product teams to ensure reliable authentication and threat mitigation.
Experian is a global data and technology company that uses data to create opportunities for people and businesses. With 25,200 employees across 32 countries, it fosters a people-centric, inclusive culture recognized by awards like World's Best Workplaces 2025.
Lead incident response for major hacks, coordinating triage, communications, and post-incident reports.
Ensure major hacks are visible to customers within hours and keep TRM's hack data complete and accurate.
Design AI-powered systems to automate hacks analysis and detect vulnerable contracts before exploitation.
TRM provides AI-powered intelligence solutions that help public and private sector agencies investigate and disrupt crime. TRM is a Series C company with $220M in total funding, backed by top investors, operating as a distributed-first company with hubs in major cities.
Develop backend services in Go for blockchain interactions, implementing ERC-4337 account abstraction, smart contracts, and microservices.
Build frontend applications with React/Next.js, integrating embedded wallet SDKs, Web3 libraries, and real-time blockchain events.
Design and implement full-stack Web3 features from smart contract events to UI, including ZK Stack specifics, admin panels, and transaction tracking.
Xsolla is a global commerce company that provides tools and services to help video game developers fund, distribute, market, and monetize their games. With over 1,500 game developers served and a remote-first culture, Xsolla prioritizes employee well-being, creativity, and collaboration.
Design, build, and operate security engineering services in Go and Python on AWS and Kubernetes.
Own the event-driven NATS platform connecting security services, ensuring delivery guarantees and observability.
Build agentic security workflows and CI security gates (SAST, SCA, secret detection) that are trusted by default.
Sezzle is a fintech company that offers interest-free installment plans and aims to financially empower the next generation. It is building an innovative, dynamic team of engineers and data enthusiasts with a culture that values unique, purpose-driven individuals.
Design and build core quote-generation and pricing engines for cross-chain transactions.
Integrate with decentralized exchanges and aggregators like Uniswap, 1inch, and LiFi.
Own end-to-end transaction pipelines from deposit detection to settlement, ensuring reliability and observability.
The company builds blockchain infrastructure for fast, reliable cross-chain transactions. It operates in a remote-first environment with a focus on collaboration, flexibility, and high-impact engineering.
Design, develop, and maintain scalable backend services and APIs for policy management and enrollment workflows.
Collaborate with Product, Data Science, Legal, and engineering teams to translate requirements into technical solutions.
Implement monitoring, logging, and experimentation capabilities to ensure reliability and support data-driven decisions.
This partner company builds backend infrastructure that powers insurance and protection products across global markets with a growing engineering team. It offers remote work flexibility, cross-functional collaboration, and an inclusive workplace.
Design, develop, and maintain reliable backend services and APIs for a fraud prevention and financial crime risk platform.
Collaborate with product teams and stakeholders to deliver secure, scalable, and customer-focused solutions.
Contribute to technical roadmaps, engineering standards, and documentation while working remotely in India.
The company operates a technology platform focused on fraud prevention and financial crime risk management. It is a growing, remote-first organization that values ownership, technical excellence, and meaningful customer impact.
Design, develop, and maintain login, registration, and account security applications across web and mobile clients.
Build the in-house AI facial recognition security product end to end, including KYC verification and liveness detection.
Own multi-factor authentication orchestration, balancing security strength with user completion rates.
Binance is a leading global blockchain ecosystem behind the world's largest cryptocurrency exchange. Trusted by 300+ million people, it offers a wide range of digital-asset products and operates with a flat, user-centric culture.
Develop backend services in Go for blockchain infrastructure, including NFT marketplaces, smart wallets, and gaming systems.
Integrate with ZK Stack, Ethereum, and account abstraction protocols to build scalable Web3 services.
Design resilient microservices, APIs, and event scanners while ensuring high availability and performance.
Xsolla is a global commerce company that provides tools and services to help video game developers fund, distribute, market, and monetize their games. The company has helped over 1,500 game developers and fosters a supportive culture focused on employee well-being and professional growth.
Design and develop sophisticated anti-abuse systems that protect legitimate senders from spam, phishing, fraud, and account compromise.
Build real-time enforcement mechanisms and scalable detection pipelines that turn security signals into action within milliseconds.
Take ownership of projects from discovery through production deployment, collaborating across the full technology stack.
They build reliable email infrastructure for millions of developers worldwide. They are a fully remote, globally distributed team that values thoughtful feedback, shared learning, and mutual support.
Lead and support blockchain development initiatives within a Web3.0-focused team.
Design, develop, and maintain blockchain-related solutions and decentralized applications.
Collaborate with developers to deliver reliable, maintainable, and effective solutions.
They are a technology team building and advancing Web3.0 solutions in the blockchain ecosystem. The culture is collaborative and innovation-driven, with an emphasis on decentralized technologies and technical quality.