RadixArk develops open-source and commercial tools that accelerate the inference and continual optimization of large AI models.
<div data-page-id="UcaUdSLZhoKzPMxYEYXjgxFBpId" data-lark-html-role="root" data-docx-has-block-data="false"> <h3 class="heading-3 ace-line old-record-id-WRqIdxdJOo34IMxeklfjIZE2peb">About the Role</h3> <div class="ace-line ace-line old-record-id-OjfRdBDvzoidnZxjUUvjgBDbpTg">RadixArk is seeking experienced product-focused engineers to join our team in building the developer-facing surfaces of our inference and training infrastructure. As a Software Engineer, Product, you will partner closely with our Product Managers, research scientists, and systems engineers to turn cutting-edge AI infrastructure into delightful, performant, and reliable products that developers and enterprises love to use.</div> <div class="ace-line ace-line old-record-id-UUIYdbvBto1eJIxLwFFj79OLpGT">You will own end-to-end product experiences across APIs, SDKs, dashboards, playgrounds, and developer tooling that sit on top of SGLang, Miles, and our broader inference and training stack. You'll work at the intersection of frontier systems and great product craft, shaping how developers discover, evaluate, and integrate RadixArk's capabilities into their own AI workloads. If you are excited about translating cutting-edge infrastructure into products that meaningfully shape how the AI community builds, this role is for you.</div> <h3 class="heading-3 ace-line old-record-id-PDO5dq3pYoytEJxgutrjlpwIpEd">Key Responsibilities</h3> <div class="ace-line ace-line old-record-id-OEPMdAsVmo5QdGxsTfojHpxDpng"><strong>Product Engineering & Execution</strong></div> <ul class="list-bullet1"> <li class="ace-line ace-line old-record-id-ZtChd5XtForgA9xKIw1jXuEcp1c" data-list="bullet"> <div>Collaborate with cross-functional teams (Product, Design, Research, Infrastructure, Developer Relations) to design and ship developer-facing products on top of RadixArk's inference and training platforms.</div> </li> <li class="ace-line ace-line old-record-id-MGzKdzqmAohf0Wxse7vjQ1cRpC2" data-list="bullet"> <div>Build and maintain customer-facing APIs, SDKs, CLIs, dashboards, and playgrounds that expose the power of SGLang, Miles, and our serving infrastructure in intuitive, well-documented interfaces.</div> </li> <li class="ace-line ace-line old-record-id-MAwGdgsWaoGSCZxyiXfjLp2Tpfe" data-list="bullet"> <div>Implement custom user interfaces and developer experiences using modern frontend and backend technologies, with a high bar for performance, accessibility, and craft.</div> </li> <li class="ace-line ace-line old-record-id-FXYpdd32coaSW6xcPQbjSnmnpEe" data-list="bullet"> <div>Architect efficient and scalable systems that bridge low-level infrastructure (GPU scheduling, model serving, distributed training) with high-level product surfaces.</div> </li> <li class="ace-line ace-line old-record-id-Bd3tdlRS9oEAaIxCDIsjy0J6pif" data-list="bullet"> <div>Analyze and optimize code for quality, efficiency, and performance, and provide thoughtful feedback to peers during code reviews.</div> </li> </ul> <div class="ace-line ace-line old-record-id-DE7GddMTIoFm7WxuKIpjCcDSpBf"><strong>Technical Leadership & Ownership</strong></div> <ul class="list-bullet1"> <li class="ace-line ace-line old-record-id-Fp7EdoRylop9DcxGHbEjVdkapbf" data-list="bullet"> <div>Establish end-to-end ownership of components, features, or systems, from initial design through rollout, monitoring, and iteration.</div> </li> <li class="ace-line ace-line old-record-id-TIhBdcBN5oXSCPxxprmjwkxVpqg" data-list="bullet"> <div>Set direction and goals for product engineering initiatives, lead major launches, and provide technical guidance and mentorship to peers and new team members.</div> </li> <li class="ace-line ace-line old-record-id-GIuFd5iTnoKi9nxmiFsjSGDepeg" data-list="bullet"> <div>Identify and resolve performance, reliability, and scalability issues across the product stack, and drive efforts to reduce technical debt.</div> </li> <li class="ace-line ace-line old-record-id-P3ChdAOkKovfv3xHxc5jCwN6pah" data-list="bullet"> <div>Participate in design reviews and technical discussions, evaluating trade-offs between system complexity, developer experience, and time-to-ship.</div> </li> </ul> <div class="ace-line ace-line old-record-id-CtKCdBhhOo1T6BxhR6pjSNThpwI"><strong>Partnership with Product & Users</strong></div> <ul class="list-bullet1"> <li class="ace-line ace-line old-record-id-I8BbdnrtxoAymIxwnMgjAwLspTc" data-list="bullet"> <div>Work hand-in-hand with Product Managers to translate roadmap priorities into well-scoped technical deliverables, surfacing trade-offs and unblocking ambiguity early.</div> </li> <li class="ace-line ace-line old-record-id-Rqp0dlKpPo6u7yx22Zij54VEpNb" data-list="bullet"> <div>Engage directly with early adopters, design partners, and the open-source community to understand pain points and rapidly iterate on product experiences.</div> </li> <li class="ace-line ace-line old-record-id-Zur4dw1DWooz8Jx3yUNj3ubIpTg" data-list="bullet"> <div>Contribute to technical content (documentation, code samples, blog posts, demos) that helps developers get the most out of RadixArk's products.</div> </li> <li class="ace-line ace-line old-record-id-IRfPdOSvUoqyPGxDhfdjJrpLp2c" data-list="bullet"> <div>Use data, telemetry, and user feedback to validate hypotheses, measure the impact of launches, and inform what to build next.</div> </li> </ul> <h3 class="heading-3 ace-line old-record-id-O0bAdxfXwo04q0xJ2HWjQVGvpfe">Qualifications</h3> <h4 class="heading-4 ace-line old-record-id-NTo4dCae5oqYDhxyFnKjJnUsp5f">Minimum Requirements</h4> <ul class="list-bullet1"> <li class="ace-line ace-line old-record-id-CxQNdCtlooUSVTxkXHjjjSKapmg" data-list="bullet"> <div>Bachelor's degree in Computer Science, Computer Engineering, a relevant technical field, or equivalent practical experience.</div> </li> <li class="ace-line ace-line old-record-id-GzIhdcbroortdsxtjjxjpu2RpZb" data-list="bullet"> <div>5+ years of software engineering experience building production systems, OR 3+ years with a PhD