Senior Backend Developer (Token Factory)
<div class="content-intro"><p><strong>About Nebius:</strong></p>
<p>Nebius is leading a new era in cloud infrastructure for the global AI economy. We are building a full-stack AI cloud platform that supports developers and enterprises from data and model training through to production deployment, without the cost and complexity of building large in-house AI/ML infrastructure.</p>
<p>Built by engineers, for engineers. From large-scale GPU orchestration to inference optimization, we own the hard problems across compute, storage, networking and applied AI.</p>
<p>Listed on Nasdaq (NBIS) and headquartered in Amsterdam, we have a global footprint with R&D hubs across Europe, the UK, North America and Israel. Our team of 1,500+ includes hundreds of engineers with deep expertise across hardware, software and AI R&D.</p></div><p><strong><span data-contrast="none"><span data-ccp-parastyle="heading 3">About the Product</span></span></strong><span data-ccp-props="{"134233117":false,"134233118":false,"134245418":true,"134245529":true,"335559738":281,"335559739":281}"> </span></p>
<p><span data-contrast="auto">Token Factory is focused on building a next-generation platform that enables companies to seamlessly integrate AI into their products and workflows. Our vision is to create a powerful, open, and scalable alternative for deploying and managing AI systems—making advanced AI infrastructure more accessible to both fast-growing startups and large enterprises.</span><span data-ccp-props="{"134233117":false,"134233118":false,"335559738":240,"335559739":240}"> </span></p>
<p><span data-contrast="auto">We work with a wide range of customers, from AI-first companies to established technology organisations, helping them run AI workloads reliably at scale. Our goal is to become a leading platform for high-performance AI inference, delivering predictable latency, strong reliability, and the ability to scale to meet demanding production needs.</span><span data-ccp-props="{"134233117":false,"134233118":false,"335559738":240,"335559739":240}"> </span></p>
<p><span data-contrast="auto">Customer feedback plays a central role in how we build—our development process is highly iterative and closely aligned with real-world use cases.</span><span data-ccp-props="{"134233117":false,"134233118":false,"335559738":240,"335559739":240}"> </span></p>
<p><span data-ccp-props="{"134233117":false,"134233118":false,"335559738":0,"335559739":0}"> </span><strong><span data-contrast="none"><span data-ccp-parastyle="heading 3">About the Team</span></span></strong><span data-ccp-props="{"134233117":false,"134233118":false,"134245418":true,"134245529":true,"335559738":281,"335559739":281}"> </span></p>
<p><span data-contrast="auto">We are a fast-growing, distributed team of engineers and product professionals based primarily in Europe. The team brings together strong backend, frontend, product, and business expertise, with a shared focus on building impactful, scalable systems.</span><span data-ccp-props="{"134233117":false,"134233118":false,"335559738":240,"335559739":240}"> </span></p>
<p><span data-contrast="auto">While we initially started without deep specialisation in AI/ML, the team has rapidly grown into the space—demonstrating strong ownership, curiosity, and the ability to tackle complex technical challenges.</span><span data-ccp-props="{"134233117":false,"134233118":false,"335559738":240,"335559739":240}"> </span></p>
<p><span data-ccp-props="{"134233117":false,"134233118":false,"335559738":0,"335559739":0}"> </span></p>
<p><strong><span data-contrast="none"><span data-ccp-parastyle="heading 3">Technology & Environment</span></span></strong><span data-ccp-props="{"134233117":false,"134233118":false,"134245418":true,"134245529":true,"335559738":281,"335559739":281}"> </span></p>
<p><span data-contrast="auto">Our work is deeply integrated with a broader cloud and infrastructure ecosystem. We primarily use </span><strong><span data-contrast="auto">Go and Python</span></strong><span data-contrast="auto"> to build and scale backend systems and collaborate closely with teams focused on areas such as infrastructure, observability, billing, and AI research.</span><span data-ccp-props="{"134233117":false,"134233118":false,"335559738":240,"335559739":240}"> </span></p>
<p><span data-contrast="auto">The platform continues to evolve from a lightweight integration layer into a more comprehensive system, including custom infrastructure, optimisations, and deeper control over performance and reliability.</span><span data-ccp-props="{"134233117":false,"134233118":false,"335559738":240,"335559739":240}"> </span></p>
<p><span data-ccp-props="{"134233117":false,"134233118":false,"335559738":0,"335559739":0}"> </span></p>
<p><strong><span data-contrast="none"><span data-ccp-parastyle="heading 3">What </span><span data-ccp-parastyle="heading 3">We’re</span><span data-ccp-parastyle="heading 3"> Working On</span></span></strong><span data-ccp-props="{"134233117":false,"134233118":false,"134245418":true,"134245529":true,"335559738":281,"335559739":281}"> </span></p>
<ul>
<li data-leveltext="" data-font="Symbol" data-listid="1" data-list-defn-props="{"335552541":1,"335559685":720,"335559991":360,"469769226":"Symbol","469769242":[8226],"469777803":"left","469777804":"","469777815":"hybridMultilevel"}" data-aria-posinset="1" data-aria-level="1"><strong><span data-contrast="auto">Scaling distributed systems:</span></strong><span data-contrast="auto"> Expanding our platform to handle significantly increased workloads while maintaining performance and reliability </span><span data-ccp-props="{"134233117":false,"134233118":false,"335559738":0,"335559739":0}"> </span></li>
</ul>
<ul>
<li data-leveltext="" data-font="Symbol" data-listid="1" data-list-defn-props="{"335552541":1,"335559685":720,"335559991":360,"469769226":"Symbol","469769242":[8226],"469777803":"left","469777804":"","469777815":"hybridMultilevel"}" data-aria-posinset="2" data-aria-level="1"><strong><span data-contrast="auto">Improving reliability:</span></strong><span data-contrast="auto"> Enhancing system stability and uptime to meet enterprise-grade expectations </span><span data-ccp-props="{"134233117":false,"134233118":false,"335559738":0,"335559739":0}"> </span></li>
</ul>
<ul>
<li data-leveltext="" data-font="Symbol" data-listid="1" data-list-defn-props="{"335552541":1,"335559685":720,"335559991":360,"469769226":"Symbol","469769242":[8226],"469777803":"left","469777804":"","469777815":"hybridMultilevel"}" data-aria-posinset="3" data-aria-level="1"><strong><span data-contrast="auto">Optimising AI performance:</span></strong><span data-contrast="auto"> Continuously adapting to new models, hardware, and runtime improvements </span><span data-ccp-props="{"134233117":false,"134233118":false,"335559738":0,"335559739":0}"> </span></li>
</ul>
<ul>
<li data-leveltext="" data-font="Symbol" data-listid="1" data-list-defn-props="{"335552541":1,"335559685":720,"335559991":360,"469769226":"Symbol","469769242":[8226],"469777803":"left","469777804":"","469777815":"hybridMultilevel"}" data-aria-posinset="4" data-aria-level="1"><strong><span data-contrast="auto">Expanding platform capabilities:</span></strong><span data-contrast="auto"> Building beyond inference into broader AI infrastructure, including data pipelines, customization, and advanced usage features </span><span data-ccp-props="{"134233117":false,"134233118":false,"335559738":0,"335559739":0}"> </span></li>
</ul>
<p><strong>We expect you to have:</strong></p>
<ul>
<li>5+ years of professional software development experience.</li>
<li>Strong software engineering skills (we mostly use Python and Go).</li>
<li>Proficiency in contemporary software engineering approaches, including CI/CD, version control and unit testing.</li>
<li>Experience with developing web services.</li>
<li>A commitment to maintaining extreme rigor in all job-related activities.</li>
</ul>
<p><strong>Nice to have:</strong></p>
<ul>
<li><strong>Previous experience working with language models or other similar NLP technologies.</strong></li>
<li>A track record of building and delivering products (not necessarily ML-related) in a dynamic startup-like environment.</li>
<li>Strong engineering skills, including experience in developing large distributed systems or high-load web services.</li>
<li>Open-source projects that showcase your engineering prowess.</li>
</ul>
<p><span data-ccp-props="{"134233117":false,"134233118":false,"335559738":0,"335559739":0}"> </span></p>
<p><strong><span data-contrast="none"><span data-ccp-parastyle="heading 3">Why </span><span data-ccp-parastyle="heading 3">It’s</span><span data-ccp-parastyle="heading 3"> Interesting</span></span></strong><span data-ccp-props="{"134233117":false,"134233118":false,"134245418":true,"134245529":true,"335559738":281,"335559739":281}"> </span></p>
<p><span data-contrast="auto">This is an opportunity to work at the intersection of </span><strong><span data-contrast="auto">distributed systems, cloud infrastructure, and applied AI</span></strong><span data-contrast="auto">, tackling real-world scalability challenges and shaping how companies adopt AI in production environments.</span><span data-ccp-props="{"134233117":false,"134233118":false,"335559738":240,"335559739":240}"> </span></p><div class="content-conclusion"><p><strong>Benefits & Perks:</strong></p>
<ul>
<li>Competitive compensation</li>
<li>Career growth and learning opportunities</li>
<li>Flexibility and ownership</li>
<li>Collaborative and innovative culture</li>
<li>Opportunity to work on impactful AI projects</li>
<li>International environment and talented teams</li>
</ul>
<p><strong>What's it like to work at Nebius:</strong></p>
<p>Fast moving - Bold thinking - Constant growth - Meaningful impact - Trust and real ownership - Opportunity to shape the future of AI </p>
<p><strong>Equal Opportunity Statement:</strong></p>
<p>Nebius is an equal opportunit
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