RadixArk develops open-source and commercial tools that accelerate the inference and continual optimization of large AI models.
<div data-page-id="UU1fdpOOzoO34gxmPH2j7HOGpdf" data-lark-html-role="root" data-docx-has-block-data="false"> <h2 class="heading-2 ace-line old-record-id-AQfIdzWqooQawBxo3uRj6hbIpfI"><strong>About the Role</strong></h2> <div class="ace-line ace-line old-record-id-WUMSdduJmofSS2xgPWljBWC7p4g">RadixArk builds the open-source AI infrastructure behind SGLang and Miles, used by developers and enterprises around the world. We're looking for a designer to give our brand a distinct visual voice, led by illustration, and who treats modern AI tools as part of their craft rather than a novelty. Taste and ideas matter to us more than years on a resume, which is why we read portfolios first and care most about the work itself. You'll shape how RadixArk shows up everywhere from our site and decks to the conferences and community events we run. We care about craft and about building things that scale, so the best work here won't just set the quality bar, it'll become systems the whole team can build on. As our platform grows, there's a real path into product, so we want someone with the curiosity and range to grow into a product designer or design engineer over time.</div> <h2 class="heading-2 ace-line old-record-id-PLqvd0pdMotc0GxarEBj0epgp6b"><strong>Key Responsibilities</strong></h2> <ul class="list-bullet1"> <li class="ace-line ace-line old-record-id-B2lPdo4Pvoi1BrxIvPZjSGMXpLc" data-list="bullet"> <div>Create original illustrations that define and extend the RadixArk and SGLang visual identity</div> </li> <li class="ace-line ace-line old-record-id-LWxHd1rfaoFGvwxTmbhjxoVGpXT" data-list="bullet"> <div>Build and steward a consistent brand system across every touchpoint</div> </li> <li class="ace-line ace-line old-record-id-X4Tkdcqv0oJ64exZJmkjtBj0plh" data-list="bullet"> <div>Use AI image tools (GPT Image 2, Nano Banana, and whatever comes next) to go from idea to polished asset quickly</div> </li> <li class="ace-line ace-line old-record-id-RITJdBPzhoGrhBxnz7ijmtvGpth" data-list="bullet"> <div>Use Claude Code as a design tool, for example to prototype landing pages and interactive web experiences in code, generate SVG illustrations and icon sets, and build or maintain design-system components and tokens</div> </li> <li class="ace-line ace-line old-record-id-Sa4Rdr0EWoPJMXxWsa5jBhltpPe" data-list="bullet"> <div>Collaborate with cross-functional partners across product, GTM, BD, engineering, and community to turn their goals into clear, compelling visuals and materials, both internal and external-facing, including conference and event collateral like slides, signage, booths, swag, and more</div> </li> <li class="ace-line ace-line old-record-id-ZHKjdJKXaoWEa0xPaAJjXSMIpnm" data-list="bullet"> <div>Produce a steady stream of visual content for blogs and social</div> </li> <li class="ace-line ace-line old-record-id-JvoVda8Iho93kNxEixKj9sCZpff" data-list="bullet"> <div>Partner with the team on product and platform polish, with room to grow into a product design role</div> </li> </ul> <h2 class="heading-2 ace-line old-record-id-IzTfd3wNgoQCDyxQqW4jaYWup42"><strong>Qualifications</strong></h2> <ul class="list-bullet1"> <li class="ace-line ace-line old-record-id-N5bhdh40pogjE1xiQOEj7SXepId" data-list="bullet"> <div>A strong portfolio is the single most important thing we look at. Show us your best work and the example projects you're proudest of, and tell us what you owned and why you made the choices you did</div> </li> <li class="ace-line ace-line old-record-id-IrBId6I8WoAUVBxfejqjoFI9p0S" data-list="bullet"> <div><strong>Every application must include a link to your website or portfolio. Applications without one will not be reviewed.</strong></div> </li> <li class="ace-line ace-line old-record-id-WKzGd7TTloVplkxsaJCjlLVlpxb" data-list="bullet"> <div>Real fluency in illustration and brand or visual design, backed by example projects</div> </li> <li class="ace-line ace-line old-record-id-IESkd7eSFoCHCqxB0gnjOkdtpaf" data-list="bullet"> <div>Comfort folding AI tools into your everyday workflow, including image generation and Claude Code</div> </li> <li class="ace-line ace-line old-record-id-Yy0BdMDxdow1frxhbfejXxMspHb" data-list="bullet"> <div>Bonus: you've built reusable Claude Code skills for branding or design systems, or are excited to, so brand-consistent output scales across the team</div> </li> <li class="ace-line ace-line old-record-id-XDLkd2xUqoBMiTxBpEbjLBlHpie" data-list="bullet"> <div>Bonus: interest or experience in product design or design engineering</div> </li> <li class="ace-line ace-line old-record-id-BwEAdpRhhoqpwLxXCeOjM2vop2f" data-list="bullet"> <div>Bonus: you set taste rather than follow trends, and have high agency in a fast-moving, technical, open-source environment</div> </li> </ul> <h2 class="heading-2 ace-line old-record-id-Mw9IdApdQoTYkTx6EZtjmfa3pdb"><strong>To Apply</strong></h2> <div class="ace-line ace-line old-record-id-BHfXd6lg7obwJ7xslYWjC0pDpWg">Send us your resume and portfolio or personal website (required) along with a short note on a project you're proud of.</div> <div class="ace-line ace-line old-record-id-BHfXd6lg7obwJ7xslYWjC0pDpWg"> </div> <div class="ace-line ace-line old-record-id-BHfXd6lg7obwJ7xslYWjC0pDpWg"> <h3>About RadixArk</h3> <p>RadixArk is an infrastructure-first company built by engineers who've shipped production AI systems, created SGLang (30K+ GitHub stars, the fastest open LLM serving engine), and developed Miles (our large-scale RL framework). Founded by AI infrastructure veterans from xAI and NVIDIA, we're on a mission to democratize frontier-level AI infrastructure by building world-class open systems for inference and training. Our team has optimized kernels serving billions of tokens daily, designed distributed training systems coordinating 10,000+ GPUs, and contributed to infrastructure that powers leading AI companies and research labs.</p> <h3>Compensation</h3> <p>We offer competitive compensation with equity, comprehensive health bene