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Backend Jobs

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

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Qurable provides an agentic customer-engagement platform that unifies customer data, loyalty, engagement, and payments. It serves brands across restaurants, fashion, travel, fuel, fintech, and banking with real-time personalization and white-label components.

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Polymarket is a decentralized information markets platform that lets users bet on the outcome of real-world events.

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Modern Treasury is a payment operations platform that provides a unified API for businesses to move money via ACH, wire, RTP, FedNow, and stablecoins with built-in compliance and ledgering.

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Polymarket is a decentralized information markets platform that lets users bet on the outcome of real-world events.

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Polymarket is a decentralized information markets platform that lets users bet on the outcome of real-world events.

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Superblocks is an enterprise platform for building and governing AI-generated internal applications. Business teams use its Clark AI agent to build production apps on company data, while IT centrally manages integrations, authentication, access controls, security policies, and auditing.

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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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Skeps (operated by Streamsource Technologies Inc.) is a microservices lending gateway platform that embeds bank-grade financing options directly into merchant websites, retail stores, and 1:1 sales flows. It connects consumers to a multi-lender network of banks, credit unions, and fintechs for real-time, pre-qualified financing on purchases from $500 to $100,000+. Its clients include enterprise merchants across home improvement, retail, telecom, travel & hospitality, health & wellness, automotive, and veterinary sectors, as well as financial institutions seeking new customer acquisition channels.

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8 hours agoSalary: 900K - 900KRemoteFullstackJobs by Hashlabs Holdings Inc
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Hashlabs Holdings Inc, doing business as Periskope, provides a WhatsApp CRM and workflow-automation platform. Its product helps businesses manage multiple WhatsApp numbers, customer conversations, tickets, bulk messaging, integrations, and AI-assisted responses.

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Takenos helps Latin American freelancers receive international payments by providing digital wallets for instant access to funds in cash or crypto.

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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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KodyPay, also known as Kody, offers an all-in-one platform to simplify in-person commerce for businesses. It provides a suite of products including intuitive payment solutions, instant access to funds with the KodyCard, and powerful management and analytics tools. Partnering with Adyen N.V., Kody enables businesses to accept a wide range of payment methods, streamlining operations for both merchants and customers.

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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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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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Xsolla is a video game commerce company that provides a suite of tools and services—including merchant of record payment processing, tax management, fraud prevention, compliance, refunds, dispute management, and end-user support—to help game developers and publishers launch, grow, and monetize their games globally. It serves video game developers, publishers, and studios of all sizes across global and regional markets.

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Ping Identity provides an identity security platform for the digital enterprise, offering identity, access management, orchestration, and fraud prevention solutions. They serve large organizations across government, financial services, healthcare, retail, and media & telco sectors.

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Ornn is building the financial infrastructure for the compute economy, providing reference pricing, market intelligence, capacity finance, and compute access for GPU compute. It serves buyers, sellers, and capital providers in the AI compute market, including institutions seeking to price, finance, and hedge compute the way commodities like oil are traded.

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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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Contro is an onchain debate platform for meaningful debates where users can trade arguments, earn rewards, and shape smarter discourse.

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

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Syndicate One is an international network of startup founders, operators, and venture capitalists focused on elevating the Belgian tech ecosystem through early-stage capital investments. They invest out of a €22 million fund, primarily backing Belgian founders with seed-stage tickets averaging €500,000, alongside operational guidance and network access.

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Chainlink Labs helped pioneer decentralized finance and now works with the world's largest financial institutions to enable transactions across the tokenized asset economy. It builds and operates the Chainlink platform, serving financial market infrastructures, asset managers, and top DeFi protocols.

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Manifold builds decentralized AI infrastructure by operating Bittensor Subnet 4 and developing AI applications.

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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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