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C Jobs

Explore C jobs in blockchain and crypto. Find positions requiring C skills.

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Least Authority provides security consulting and auditing services for Web3, blockchain, and FinTech projects.

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webAI is a sovereign AI platform that lets organizations build, deploy, and operate custom AI on their own infrastructure. It serves enterprise teams across industries such as healthcare, manufacturing, financial services, aviation, public sector, and retail.

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Fermah is a crypto infrastructure company building 'Protocol Agency' — an autonomous execution layer that lets smart contracts observe, decide, and act without human or centralized-server intervention. Its core engine, Fermah Kernel, powers two live products: Fermah Froben, a universal ZK proof marketplace matching proof requests to GPU compute suppliers across any proof system or chain, and Flashcast Social, a prediction market platform that creates and resolves markets instantly from natural-language questions. Fermah serves ZK protocol teams and chains (e.g. ZKsync, Scroll, Gateway) as well as developers needing trustless off-chain computation.

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webAI is a sovereign AI platform that lets organizations build, deploy, and operate custom AI on their own infrastructure. It serves enterprise teams across industries such as healthcare, manufacturing, financial services, aviation, public sector, and retail.

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webAI is a sovereign AI platform that lets organizations build, deploy, and operate custom AI on their own infrastructure. It serves enterprise teams across industries such as healthcare, manufacturing, financial services, aviation, public sector, and retail.

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Stellar is an open-source blockchain network designed to facilitate fast, low-cost cross-border payments and financial transactions globally.

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CoinLedger provides crypto tax software and related professional services. Its platform imports transactions from wallets, exchanges, blockchains, DeFi protocols, and NFT platforms to calculate gains, losses, income, and tax reports for crypto investors and tax professionals.

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Stellar is an open-source blockchain network designed to facilitate fast, low-cost cross-border payments and financial transactions globally.

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Stellar is an open-source blockchain network designed to facilitate fast, low-cost cross-border payments and financial transactions globally.

Investors

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MPCH is a dual-use cryptographic infrastructure company providing governed signing, key management, disaster recovery, validator infrastructure, secure facilities, managed security operations, and AI governance. It serves regulated financial institutions, digital-asset platforms, custodians, government agencies, and defense clients.

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Carbon Browser is a Web 3.0 web browser offering AdBlock, a built-in VPN, a multi-chain crypto wallet, and enhanced privacy features. Users earn CSIX token rewards for browsing without KYC, and the browser targets everyday users seeking privacy, speed, and crypto integration across desktop and mobile platforms.

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Ripple provides payments, custody and stablecoin solutions that help financial institutions integrate blockchain and digital assets.

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OKX is a leading global cryptocurrency exchange offering a wide range of trading services, including spot and derivatives trading, as well as Web3 solutions.

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GitLab is an AI-powered DevSecOps platform that unifies the entire software development lifecycle into a single application. It helps development, security, and operations teams to collaborate and deliver software more efficiently, with security integrated at every step. The platform is trusted by millions of users and a majority of the Fortune 100.

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Speedinvest is a European venture capital firm that invests from seed to growth stage (Series B to pre-IPO), backing founders with sector-specific expertise and a large network of operational support. It leads the majority of its initial investments and continues to support portfolio companies through multiple follow-on rounds as they scale.

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Speedinvest is a European venture capital firm that invests from seed to growth stage (Series B to pre-IPO), backing founders with sector-specific expertise and a large network of operational support. It leads the majority of its initial investments and continues to support portfolio companies through multiple follow-on rounds as they scale.

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OXIO is a Telecom-as-a-Service (TaaS) platform that enables companies to launch and manage their own mobile networks (MVNOs) using a cloud-native, API-first platform. It serves retailers, fintechs, device/IoT companies, celebrities/lifestyle brands, MVNOs, and network operators looking to embed or launch connectivity products without needing telecom expertise.

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OXIO is a Telecom-as-a-Service (TaaS) platform that enables companies to launch and manage their own mobile networks (MVNOs) using a cloud-native, API-first platform. It serves retailers, fintechs, device/IoT companies, celebrities/lifestyle brands, MVNOs, and network operators looking to embed or launch connectivity products without needing telecom expertise.

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Echelon (Echelon Market) is a decentralized, non-custodial lending protocol built with the Move programming language, deployed on Aptos, Movement, and Initia. It lets users earn yield on deposits, borrow against collateral, and access fixed, tokenized yields with leverage.

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PLAYSTUDIOS is a gaming company that develops and operates a portfolio of casual and casino-style mobile and social games, including myVEGAS Slots, POP! Slots, MGM Slots Live, myKONAMI Slots, and various puzzle games like Tetris®, Mahjong, and Sudoku. The company also runs playAWARDS, a loyalty platform connecting brand partners with its global player base. Its clients are primarily consumers of free-to-play mobile and social casino/casual games, as well as brand partners participating in its rewards network.

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Bitdeer is a NASDAQ-listed (BTDR) high-performance computing and Bitcoin mining company headquartered in Singapore. It provides end-to-end Bitcoin mining solutions (mining hardware like SEALMINER, Minerbase containers, cloud mining, hosting, and mining farm/data center operations) as well as AI Cloud services offering GPU compute (NVIDIA GB200 NVL72, B200, H200, H100) for AI training and deployment. Its customers range from individual and institutional Bitcoin miners to enterprises and developers needing scalable AI/ML compute infrastructure.

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Bitdeer is a NASDAQ-listed (BTDR) high-performance computing and Bitcoin mining company headquartered in Singapore. It provides end-to-end Bitcoin mining solutions (mining hardware like SEALMINER, Minerbase containers, cloud mining, hosting, and mining farm/data center operations) as well as AI Cloud services offering GPU compute (NVIDIA GB200 NVL72, B200, H200, H100) for AI training and deployment. Its customers range from individual and institutional Bitcoin miners to enterprises and developers needing scalable AI/ML compute infrastructure.

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Bitdeer is a NASDAQ-listed (BTDR) high-performance computing and Bitcoin mining company headquartered in Singapore. It provides end-to-end Bitcoin mining solutions (mining hardware like SEALMINER, Minerbase containers, cloud mining, hosting, and mining farm/data center operations) as well as AI Cloud services offering GPU compute (NVIDIA GB200 NVL72, B200, H200, H100) for AI training and deployment. Its customers range from individual and institutional Bitcoin miners to enterprises and developers needing scalable AI/ML compute infrastructure.

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