Senior Machine Learning Engineer, Dash Agentic AI at Dropbox

<h2>Role Description</h2> <p><span class=" author-d-1gg9uz65z1iz85zgdz68zmqkz84zo2qowz80ziz80zz83zz89zz65z5z82zz87zpwqxz77zi19bcx4z76zz66zd0901z79zz89zg">As a Senior Machine Learning Engineer, you will play a key role in advancing Dropbox’s mission to create a more enlightened way of working. Leveraging cutting-edge AI/ML technologies, you will design, build, deploy, and refine highly reliable AI agents operating at massive scale. Your work will power Dropbox Dash’s universal agentic search and autonomous organization features, transforming how millions of users collaborate, stay organized, and focus on the work that truly matters</span></p> <div> <p><span class=" author-d-iz88z86z86za0dz67zz78zz78zz74zz68zjz80zz71z9iz90z95lz89zy6z71zz79zz84zz68zyz69zupz72zz79zcz69zz76zkz79zp1z66ztz67zxz71zz89zz86zz71z">Our Engineering Career Framework is </span><span class="attrlink url author-d-iz88z86z86za0dz67zz78zz78zz74zz68zjz80zz71z9iz90z95lz89zy6z71zz79zz84zz68zyz69zupz72zz79zcz69zz76zkz79zp1z66ztz67zxz71zz89zz86zz71z"><a class="attrlink" href="https://dropbox.github.io/dbx-career-framework/" target="_blank" data-target-href="https://dropbox.github.io/dbx-career-framework/"><u>viewable by anyone outside the company</u></a></span><span class=" author-d-iz88z86z86za0dz67zz78zz78zz74zz68zjz80zz71z9iz90z95lz89zy6z71zz79zz84zz68zyz69zupz72zz79zcz69zz76zkz79zp1z66ztz67zxz71zz89zz86zz71z"> and describes what’s expected for our engineers at each of our career levels. Check out our blog post on this topic and more </span><span class="attrlink url author-d-iz88z86z86za0dz67zz78zz78zz74zz68zjz80zz71z9iz90z95lz89zy6z71zz79zz84zz68zyz69zupz72zz79zcz69zz76zkz79zp1z66ztz67zxz71zz89zz86zz71z"><a class="attrlink" href="https://dropbox.tech/culture/sharing-our-engineering-career-framework-with-the-world" target="_blank" data-target-href="https://dropbox.tech/culture/sharing-our-engineering-career-framework-with-the-world">here</a></span><span class=" author-d-iz88z86z86za0dz67zz78zz78zz74zz68zjz80zz71z9iz90z95lz89zy6z71zz79zz84zz68zyz69zupz72zz79zcz69zz76zkz79zp1z66ztz67zxz71zz89zz86zz71z">.</span></p> </div> <h2>Responsibilities</h2> <ul> <li><span class=" author-d-1gg9uz65z1iz85zgdz68zmqkz84zo2qowz80ziz80zz83zz89zz65z5z82zz87zpwqxz77zi19bcx4z76zz66zd0901z79zz89zg">Design and productionize agentic AI frameworks — including multi-agent coordination, planning, tool-use, and memory — that allow agents to maintain long-term context and execute complex tasks across the Dropbox ecosystem.</span></li> <li><span class=" author-d-1gg9uz65z1iz85zgdz68zmqkz84zo2qowz80ziz80zz83zz89zz65z5z82zz87zpwqxz77zi19bcx4z76zz66zd0901z79zz89zg">Lead the end-to-end design of ML systems, from fine-tuning</span> <span class=" author-d-1gg9uz65z1iz85zgdz68zmqkz84zo2qowz80ziz80zz83zz89zz65z5z82zz87zpwqxz77zi19bcx4z76zz66zd0901z79zz89zg h-lparen">(SFT,</span><span class=" author-d-1gg9uz65z1iz85zgdz68zmqkz84zo2qowz80ziz80zz83zz89zz65z5z82zz87zpwqxz77zi19bcx4z76zz66zd0901z79zz89zg"> RLAIF) and advanced prompting to inference optimization and production monitoring.</span></li> <li><span class=" author-d-1gg9uz65z1iz85zgdz68zmqkz84zo2qowz80ziz80zz83zz89zz65z5z82zz87zpwqxz77zi19bcx4z76zz66zd0901z79zz89zg">Establish rigorous safety, alignment, and evaluation frameworks to ensure our autonomous systems are helpful, honest, and harmless.</span></li> <li><span class=" author-d-1gg9uz65z1iz85zgdz68zmqkz84zo2qovw8rfz66zz85zwz83zpz86ziz69zz80zfqz90zz122zz77zz74zmt7z86zz85zz80zwz67zgz71zn4">Collaborate across Product, Design, Infra, and Frontend teams to translate ambiguous user needs into concrete AI capabilities that move the needle for the business.</span></li> <li><span class=" author-d-1gg9uz65z1iz85zgdz68zmqkz84zo2qowz80ziz80zz83zz89zz65z5z82zz87zpwqxz77zi19bcx4z76zz66zd0901z79zz89zg">Mentor junior engineers and serve as a core contributor to the broader Dropbox AI strategy, fostering a culture of technical excellence.</span></li> </ul> <p><span class="thread-348589118974529206372994 attrcomment attrcommentfirst thread-348589118974529206372994-first author-d-iz88z86z86za0dz67zz78zz78zz74zz68zjz80zz71z9iz90z95lz89zy6z71zz79zz84zz68zyz69zupz72zz79zcz69zz76zkz79zp1z66ztz67zxz71zz89zz86zz71z"><span class=" author-d-iz88z86z86za0dz67zz78zz78zz74zz68zjz80zz71z9iz90z9z84zyz72zz70zz71zz72zhwl8r6xz85zr3z69z6z86zz78zz76zcfvdsgm4t">Many teams at Dropbox run Services with on-call rotations, which entails being available for calls during both core and non-core business hours. If a team has an on-call rotation, all engineers on the team are expected to participate in the rotation as part of their employment. Applicants are encouraged to ask for more details of the rotations to which the applicant is applying.</span></span></p> <h2>Requirements</h2> <ul> <li><span class=" author-d-iz88z86z86za0dz67zz78zz78zz74zz68zjz80zz71z9iz90z8h00wiph6z86zz86z7z89z3z66zz68z0z82zxz68zz67z1z74z8z79z7z70zz67zcyz80z">BS, MS, or PhD in Computer Science</span><span class=" author-d-1gg9uz65z1iz85zgdz68zmqkz84zo2qoxwoz79zz80zz69zuicbz75zya10z73zdru2z73zz68z9jz76z2z71zphz80zq1">, Mathematics, Statistics, or </span><span class=" author-d-1gg9uz65z1iz85zgdz68zmqkz84zo2qowz80ziz80zz83zz89zz65z5z82zz87zpwqxz77zi19bcx4z76zz66zd0901z79zz89zg">a</span> <span class=" author-d-1gg9uz65z1iz85zgdz68zmqkz84zo2qowz80ziz80zz83zz89zz65z5z82zz87zpwqxz77zi19bcx4z76zz66zd0901z79zz89zg">related </span><span class=" author-d-1gg9uz65z1iz85zgdz68zmqkz84zo2qoxwoz79zz80zz69zuicbz75zya10z73zdru2z73zz68z9jz76z2z71zphz80zq1">quantitative field</span> <span class=" author-d-1gg9uz65z1iz85zgdz68zmqkz84zo2qowz80ziz80zz83zz89zz65z5z82zz87zpwqxz77zi19bcx4z76zz66zd0901z79zz89zg h-lparen">(</span><span class=" author-d-iz88z86z86za0dz67zz78zz78zz74zz68zjz80zz71z9iz90z8h00wiph6z86zz86z7z89z3z66zz68z0z82zxz68zz67z1z74z8z79z7z70zz67zcyz80z h-lparen">or</span> <span class=" author-d-1gg9uz65z1iz85zgdz68zmqkz84zo2qowz80ziz80zz83zz89zz65z5z82zz87zpwqxz77zi19bcx4z76zz66zd0901z79zz89zg">equivalent</span> <span class=" author-d-1gg9uz65z1iz85zgdz68zmqkz84zo2qoxwoz79zz80zz69zuicbz75zya10z73zdru2z73zz68z9jz76z2z71zphz80zq1">work</span><span class=" author-d-iz88z86z86za0dz67zz78zz78zz74zz68zjz80zz71z9iz90z8h00wiph6z86zz86z7z89z3z66zz68z0z82zxz68zz67z1z74z8z79z7z70zz67zcyz80z"> experience</span><span class=" author-d-1gg9uz65z1iz85zgdz68zmqkz84zo2qowz80ziz80zz83zz89zz65z5z82zz87zpwqxz77zi19bcx4z76zz66zd0901z79zz89zg">).</span></li> <li><span class=" author-d-1gg9uz65z1iz85zgdz68zmqkz84zo2qoxwoz79zz80zz69zuicbz75zya10z73zdru2z73zz68z9jz76z2z71zphz80zq1">8+ years of software engineering experience, with at least 5+ years dedicated to building and deploying production-scale AI/ML systems.</span></li> <li><span class=" author-d-1gg9uz65z1iz85zgdz68zmqkz84zo2qoxwoz79zz81zdz83zj3z80ziz65zz90zgz82zz67zz84zifm1w1z73zz89z3z73zz86zz90zz68zn5">Professional experience in ML modeling for complex systems such as</span> <span class=" author-d-1gg9uz65z1iz85zgdz68zmqkz84zo2qoxwoz79zz81zdz83zj3z80ziz65zz90zgz82zz67zz84zifm1w1z73zz89z3z73zz86zz90zz68zn5">Search, Ranking, or Recommender Systems.</span></li> <li><span class=" author-d-iz88z86z86za0dz67zz78zz78zz74zz68zjz80zz71z9iz90z8h00wiph6z86zz86z7z89z3z66zz68z0z82zxz68zz67z1z74z8z79z7z70zz67zcyz80z">Deep familiarity with LLM architectures and hands-on experience with ML libraries</span> <span class=" author-d-iz88z86z86za0dz67zz78zz78zz74zz68zjz80zz71z9iz90z8h00wiph6z86zz86z7z89z3z66zz68z0z82zxz68zz67z1z74z8z79z7z70zz67zcyz80z h-lparen">(e.g.,</span><span class=" author-d-iz88z86z86za0dz67zz78zz78zz74zz68zjz80zz71z9iz90z8h00wiph6z86zz86z7z89z3z66zz68z0z82zxz68zz67z1z74z8z79z7z70zz67zcyz80z"> PyTorch, JAX, or similar).</span></li> <li><span class=" author-d-iz88z86z86za0dz67zz78zz78zz74zz68zjz80zz71z9iz90z8h00wiph6z86zz86z7z89z3z66zz68z0z82zxz68zz67z1z74z8z79z7z70zz67zcyz80z">Strong proficiency in Python</span> <span class=" author-d-iz88z86z86za0dz67zz78zz78zz74zz68zjz80zz71z9iz90z8h00wiph6z86zz86z7z89z3z66zz68z0z82zxz68zz67z1z74z8z79z7z70zz67zcyz80z h-lparen">(required)</span><span class=" author-d-iz88z86z86za0dz67zz78zz78zz74zz68zjz80zz71z9iz90z8h00wiph6z86zz86z7z89z3z66zz68z0z82zxz68zz67z1z74z8z79z7z70zz67zcyz80z"> and experience with systems languages like Go or C/C++. You should be comfortable building the infrastructure that surrounds the model.</span></li> <li><span class=" author-d-1gg9uz65z1iz85zgdz68zmqkz84zo2qovw8rfz66zz85zwz83zpz86ziz69zz80zfqz90zz122zz77zz74zmt7z86zz85zz80zwz67zgz71zn4">Extensive experience working with large-scale distributed data systems and high-throughput production environments.</span></li> <li><span class=" author-d-1gg9uz65z1iz85zgdz68zmqkz84zo2qowz80ziz80zz83zz89zz65z5z82zz87zpwqxz77zi19bcx4z76zz66zd0901z79zz89zg">Exceptional analytical skills and a</span> <span class=" author-d-1gg9uz65z1iz85zgdz68zmqkz84zo2qowz80ziz80zz83zz89zz65z5z82zz87zpwqxz77zi19bcx4z76zz66zd0901z79zz89zg h-quot">"bias</span><span class=" author-d-1gg9uz65z1iz85zgdz68zmqkz84zo2qowz80ziz80zz83zz89zz65z5z82zz87zpwqxz77zi19bcx4z76zz66zd0901z79zz89zg"> to action" when navigating ambiguous technical challenges.</span></li> </ul> <h2>Preferred Qualifications</h2> <ul> <li><span class=" author-d-iz88z86z86za0dz67zz78zz78zz74zz68zjz80zz71z9iz90z8h00wiph6z86zz86z7z89z3z66zz68z0z82zxz68zz67z1z74z8z79z7z70zz67zcyz80z">PhD with a focus on Deep Learning, NLP, or Reinforcement Learning</span> <span class=" author-d-iz88z86z86za0dz67zz78zz78zz74zz68zjz80zz71z9iz90z8h00wiph6z86zz86z7z89z3z66zz68z0z82zxz68zz67z1z74z8z79z7z70zz67zcyz80z h-lparen">(RLHF/RLAIF).</span></li> <li><span class=" author-d-1gg9uz65z1iz85zgdz68zmqkz84zo2qovvunwz87zz79zz87z9z79zqz73zz71zwbmhz77zyoz76zz88zz77z1ja7ftz86zz78zz70z">Proven track record of taking AI products from concept to launch, either at a massive scale</span> <span class=" author-d-1gg9uz65z1iz85zgdz68zmqkz84zo2qovvunwz87zz79zz87z9z79zqz73zz71zwbmhz77zyoz76zz88zz77z1ja7ftz86zz78zz70z h-lparen">(millions</span><span class=" author-d-1gg9uz65z1iz85zgdz68zmqkz84zo2qovvunwz87zz79zz87z9z79zqz73zz71zwbmhz77zyoz76zz88zz77z1ja7ftz86zz78zz70z"> of users) or by leading multiple 0 → 1 cycles in a fast-paced environment</span><span class=" author-d-1gg9uz65z1iz85zgdz68zmqkz84zo2qowz80ziz80zz83zz89zz65z5z82zz87zpwqxz77zi19bcx4z76zz66zd0901z79zz89zg">.</span></li> <li><span class=" author-d-iz88z86z86za0dz67zz78zz78zz74zz68zjz80zz71z9iz90z8h00wiph6z86zz86z7z89z3z66zz68z0z82zxz68zz67z1z74z8z79z7z70zz67zcyz80z">Hands-on experience with autonomous agent frameworks, multi-step planning, tool-use</span> <span class=" author-d-iz88z86z86za0dz67zz78zz78zz74zz68zjz80zz71z9iz90z8h00wiph6z86zz86z7z89z3z66zz68z0z82zxz68zz67z1z74z8z79z7z70zz67zcyz80z h-lparen">(function</span><span class=" author-d-iz88z86z86za0dz67zz78zz78zz74zz68zjz80zz71z9iz90z8h00wiph6z86zz86z7z89z3z66zz68z0z82zxz68zz67z1z74z8z79z7z70zz67zcyz80z"> calling), and advanced RAG.</span></li> <li><span class=" author-d-iz88z86z86za0dz67zz78zz78zz74zz68zjz80zz71z9iz90z8h00wiph6z86zz86z7z89z3z66zz68z0z82zxz68zz67z1z74z8z79z7z70zz67zcyz80z">Experience with inference optimization, model distillation, or fine-tuning techniques to improve performance and cost-efficiency.</span></li> </ul> <h2 data-usually-unique-id="044234883370604133046166"><span class=" author-d-1gg9uz65z1iz85zgdz68zmqkz84zo2qowz81zqz90zkz74zz76zeez80zz68zz89zz88zvqz86zuxlz73zexxz80zz73z6d6z72zz79zsz77z">Compensation</span></h2><div class="content-pay-transparency"><div class="pay-input"><div class="title">Canada Pay Range</div><div class="pay-range"><span>$205,700</span><span class="divider">&mdash;</span><span>$278,300 CAD</span></div></div></div>