{"id":450850,"date":"2026-04-29T13:53:46","date_gmt":"2026-04-29T11:53:46","guid":{"rendered":"https:\/\/berlinstartupjobs.com\/?p=450850"},"modified":"2026-04-29T13:54:00","modified_gmt":"2026-04-29T11:54:00","slug":"lead-blockchain-engineer-cef-ai","status":"publish","type":"post","link":"https:\/\/berlinstartupjobs.com\/de\/engineering\/lead-blockchain-engineer-cef-ai\/","title":{"rendered":"Lead Blockchain Engineer \/\/ CEF AI"},"content":{"rendered":"<p>We are hiring a Lead Blockchain Engineer to work on the core protocol powering CEF\u2019s decentralized AI and data infrastructure.<\/p>\n<p>This is not a maintenance role.<\/p>\n<p>This is not a \u201cbuild a token and ship it\u201d role.<\/p>\n<p>This is a core infrastructure engineering role for someone who wants to design and evolve blockchain systems that operate in production.<\/p>\n<p>CEF is building a decentralized AI and data infrastructure platform, with Cere Network forming the core Web3 data and blockchain backbone of the ecosystem. We are building long-term infrastructure for autonomous AI agents operating on sovereign data.<\/p>\n<p>Your mandate will be to evolve the Cere Protocol Layer 1 blockchain, build critical protocol primitives, and maintain production networks that power decentralized data computing.<\/p>\n<p>If you think in protocols, distributed systems, cryptography, and consensus architectures, this role is for you.<\/p>\n<p><strong>Tasks<\/strong><\/p>\n<p><strong>1. Architect Core Protocol Infrastructure<\/strong><\/p>\n<ul>\n<li>Continuously upgrade the Cere Protocol Layer 1 blockchain using Rust and Substrate.<\/li>\n<li>Design and implement custom pallets powering Decentralized Data Clusters (DDC).<\/li>\n<li>Improve protocol performance, reliability, and scalability.<\/li>\n<li>Contribute to core runtime architecture and network evolution.<\/li>\n<li>Maintain long-term protocol sustainability and upgradeability.<\/li>\n<\/ul>\n<p>We are not looking for someone to ship features.<\/p>\n<p>We are looking for someone to build infrastructure that lasts.<\/p>\n<p><strong>2. Engineer Verifiable Compute<\/strong><\/p>\n<ul>\n<li>Implement Proof of Compute systems to capture and verify data activity on chain.<\/li>\n<li>Design mechanisms for automated verification and settlement of computation.<\/li>\n<li>Build reliable accounting primitives for decentralized data infrastructure.<\/li>\n<li>Ensure protocol level guarantees around transparency and trust.<\/li>\n<\/ul>\n<p>Compute should be provable, auditable, and autonomous.<\/p>\n<p><strong>3. Build Privacy and Sovereign Data Systems<\/strong><\/p>\n<ul>\n<li>Develop Zero Knowledge primitives supporting private computation.<\/li>\n<li>Design and evolve the EDEK system for client side encryption and data sovereignty.<\/li>\n<li>Implement cryptographic primitives supporting decentralized data ownership.<\/li>\n<li>Ensure privacy preserving architecture across protocol layers.<\/li>\n<\/ul>\n<p>Data sovereignty must be designed into the protocol itself.<\/p>\n<p><strong>4. Maintain Protocol Governance and Security<\/strong><\/p>\n<ul>\n<li>Maintain and upgrade the OpenGov governance framework.<\/li>\n<li>Implement governance improvements for protocol upgrades and voting.<\/li>\n<li>Conduct internal security audits of protocol upgrades and smart contracts.<\/li>\n<li>Ensure production networks operate reliably and securely.<\/li>\n<\/ul>\n<p>Protocol governance should be transparent, secure, and resilient.<\/p>\n<p><strong>Requirements<\/strong><\/p>\n<ul>\n<li>7+ years of engineering experience with strong expertise in Rust.<\/li>\n<li>Deep experience working with Substrate and blockchain runtime development.<\/li>\n<li>Strong understanding of applied cryptography, including hashing, signatures, and ZK proofs.<\/li>\n<li>Experience architecting distributed systems and consensus mechanisms.<\/li>\n<li>Familiarity with on chain governance frameworks such as Polkadot\/OpenGov.<\/li>\n<li>Experience building or modifying core blockchain protocol components.<\/li>\n<li>Experience deploying and maintaining blockchain nodes and networks.<\/li>\n<li>Hands on experience running testnet and mainnet infrastructure.<\/li>\n<li>Strong experience with Linux environments and containerized deployments.<\/li>\n<li>Experience with Docker \/ Docker Compose (Kubernetes is a plus).<\/li>\n<li>Familiarity with monitoring systems, logs, and network metrics.(Kubernetes is a plus)<\/li>\n<\/ul>\n<p><strong>Nice to Have:<\/strong><\/p>\n<ul>\n<li>Experience with Substrate FRAME, runtime development, or pallet design.<\/li>\n<li>Background in Computer Science or equivalent high impact Web3 experience.<\/li>\n<\/ul>\n<p><strong>Benefits<\/strong><\/p>\n<ul>\n<li>Real Equity: We treat early team members like partners. You\u2019ll receive meaningful equity so the upside you help create is shared.<\/li>\n<li>Direct Access to Leadership: You are part of the core conversation. You will work side by side with the CEO and founders every day to solve hard problems and set the strategy.<\/li>\n<li>Work on Hard, Emerging Problems: We are building infrastructure for AI agents operating on sensitive, real-time data without relying on centralized black box platforms. While parts of this ecosystem exist, the architecture for doing it securely and reliably at scale is still evolving.<\/li>\n<li>Small Team, High Output: We believe the best teams are small and extremely capable. AI tools increase individual leverage, so we hire fewer people and expect a much higher level of ownership and output.<\/li>\n<li>Autonomy With Accountability: We hire people who don\u2019t wait for permission to solve problems. If you see a better way to build something, you\u2019re expected to propose it and ship it.<\/li>\n<li>Remote With Real Collaboration: We are a remote-first team but believe strong collaboration requires real interaction. The team meets regularly in San Francisco and Europe for focused building sessions and hackathons.<\/li>\n<\/ul>\n<p><strong>Our Hiring Process<\/strong><\/p>\n<p>We move fast, stay transparent, and focus on real collaboration. Here\u2019s what the process looks like:<\/p>\n<p>1. Intro Call \u2013 A quick chat to align on expectations, interests, and team fit.<br \/>\n2. Technical Deep Dive \u2013 A focused conversation with our Engineering Manager to explore your technical thinking and past work.<br \/>\n3. CEO Interview \u2013 A strategic discussion around vision, mindset, and long-term alignment.<br \/>\n4. Reference Collection \u2013 We\u2019ll speak with a few people you\u2019ve worked closely with.<br \/>\n5. Paid Trial (~5 Days) \u2013 A short, real-world engagement so we can see how we work together \u2014 happening in parallel with offer and terms discussion.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>We are hiring a Lead Blockchain Engineer to work on the core protocol powering CEF\u2019s decentralized AI and data infrastructure. This is not a maintenance role. This is not a \u201cbuild a token and ship it\u201d role. This is a core infrastructure engineering role for someone who wants to design and evolve blockchain systems that&#8230;<\/p>\n","protected":false},"author":208,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_submission_link":"","_website_link":"","_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[9],"tags":[],"job_company":[31632],"job_location":[28075,28076],"job_plan":[21112],"class_list":["post-450850","post","type-post","status-publish","format-standard","hentry","category-engineering","job_company-cef-ai","job_location-berlin-germany","job_location-remote-possible"],"translation":{"provider":"WPGlobus","version":"2.12.2","language":"de","enabled_languages":["en","de"],"languages":{"en":{"title":true,"content":true,"excerpt":false},"de":{"title":false,"content":false,"excerpt":false}}},"company_logo":"","gf_entry_url":"","company_admin_link":"","_submission_data":"","_invoice_status":"","_invoice_url":"","_unfeature_on":null,"_unpublish_on":"2026-07-28","_is_featured":false,"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Stellenangebot: Lead Blockchain Engineer \/\/ CEF AI | IT \/ Softwareentwicklung | Berlin Startup Jobs<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/berlinstartupjobs.com\/engineering\/lead-blockchain-engineer-cef-ai\/\" \/>\n<meta property=\"og:locale\" content=\"de_DE\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Stellenangebot: Lead Blockchain Engineer \/\/ CEF AI | IT \/ Softwareentwicklung | Berlin Startup Jobs\" \/>\n<meta property=\"og:url\" content=\"https:\/\/berlinstartupjobs.com\/engineering\/lead-blockchain-engineer-cef-ai\/\" \/>\n<meta property=\"og:site_name\" content=\"Berlin Startup Jobs\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/berlinstartupjobs\" \/>\n<meta property=\"article:published_time\" content=\"2026-04-29T11:53:46+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-04-29T11:54:00+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/berlinstartupjobs.com\/wp-content\/uploads\/BSJ-logo-OG-feb2016.png\" \/>\n\t<meta property=\"og:image:width\" content=\"602\" \/>\n\t<meta property=\"og:image:height\" content=\"315\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"author\" content=\"Join\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@berlin_startups\" \/>\n<meta name=\"twitter:site\" content=\"@berlin_startups\" \/>\n<meta name=\"twitter:label1\" content=\"Verfasst von\" \/>\n\t<meta name=\"twitter:data1\" content=\"Join\" \/>\n\t<meta name=\"twitter:label2\" content=\"Gesch\u00e4tzte Lesezeit\" \/>\n\t<meta name=\"twitter:data2\" content=\"4 Minuten\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/berlinstartupjobs.com\\\/engineering\\\/lead-blockchain-engineer-cef-ai\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/berlinstartupjobs.com\\\/engineering\\\/lead-blockchain-engineer-cef-ai\\\/\"},\"author\":{\"name\":\"Join\",\"@id\":\"https:\\\/\\\/berlinstartupjobs.com\\\/#\\\/schema\\\/person\\\/8f5a3cce7fd6ad9dae18e522dbd2f447\"},\"headline\":\"Lead Blockchain Engineer \\\/\\\/ CEF AI\",\"datePublished\":\"2026-04-29T11:53:46+00:00\",\"dateModified\":\"2026-04-29T11:54:00+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/berlinstartupjobs.com\\\/engineering\\\/lead-blockchain-engineer-cef-ai\\\/\"},\"wordCount\":765,\"publisher\":{\"@id\":\"https:\\\/\\\/berlinstartupjobs.com\\\/#organization\"},\"articleSection\":[\"IT \\\/ Softwareentwicklung\"],\"inLanguage\":\"de-DE\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/berlinstartupjobs.com\\\/engineering\\\/lead-blockchain-engineer-cef-ai\\\/\",\"url\":\"https:\\\/\\\/berlinstartupjobs.com\\\/engineering\\\/lead-blockchain-engineer-cef-ai\\\/\",\"name\":\"Stellenangebot: Lead Blockchain Engineer \\\/\\\/ CEF AI | IT \\\/ Softwareentwicklung | Berlin Startup Jobs\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/berlinstartupjobs.com\\\/#website\"},\"datePublished\":\"2026-04-29T11:53:46+00:00\",\"dateModified\":\"2026-04-29T11:54:00+00:00\",\"description\":\"We are hiring a Lead Blockchain Engineer to work on the core protocol powering CEF\u2019s decentralized AI and data infrastructure. 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