Staff Platform Infrastructure Engineer Jobs

Reddit is a community of communities. It’s built on shared interests, passion, and trust, and is home to the most open and authentic conversations on the internet. Every day, Reddit users submit, vote, and comment on the topics they care most about. With 100,000+ active communities and approximately 130 million daily active unique visitors, Reddit is one of the internet’s largest sources of information. For more information, visit www.redditinc.com . As the Chief of Staff to the EVP of Global Ad Sales, you will serve as a high-leverage strategic operator, executive proxy, and force multiplier across the Global Sales Organization (GSO). Your key function is to scale executive attention, accelerate decision velocity, and translate GSO’s highest strategic priorities into clear execution and follow-through. The ideal Chief of Staff operates with high EQ to maintain Reddit’s open, collaborative, and accessible culture while ensuring that executive time is prioritized for high-impact drivers. You will partner closely with Sales Strategy & Operations, regional sales leadership, and cross-functional executive teams to orchestrate a seamless operational rhythm and drive global alignment. This role is required to be based in New York or London. Responsibilities: Drive Alignment & Prioritization Filter & Route Inquiries: Establish clear operational paths for routine data requests, incident reporting, and tactical items below the executive level, freeing leadership bandwidth for major revenue initiatives. Executive Proxy & Strategic Alignment: Represent the EVP in key cross-functional leadership forums, planning reviews, and offsites, building bottoms-up consensus and alignment before issues require top-down intervention. Surface Field Signals: Synthesize customer sentiment, competitive dynamics, and field feedback directly from front-line sales teams to keep executive leadership deeply connected to market realities. Pre-Frame Executive Decisions: Ensure materia

Our vision is to transform how the world uses information to enrich life for all . Micron Technology is a world leader in innovating memory and storage solutions that accelerate the transformation of information into intelligence, inspiring the world to learn, communicate and advance faster than ever. 【募集職種/Position Title】 Senior / Staff / Principal Process Development Engineer 【日本語】 MicronのDRAM Technology Development Process Development Teamは、MicronのDRAMおよびHBM (High Bandwidth Memory) 製品向けのプロセス技術、装置ソリューションを開発する、世界最高水準のエンジニアと技術専門家で構成された組織です。 当チームでは、先端DRAM、HBM、およびCMOS技術の開発を推進しており、リソグラフィ、CVD、ドライエッチ、ウェットプロセス、メタライゼーション、拡散、イオン注入、CMP、先端材料開発など、幅広いプロセス分野で経験豊富な人材を募集しています。 本ポジションでは、ユニットプロセス技術の探索、開発、最適化を担当し、プロセスインテグレーション、デバイス、設計エンジニアと連携しながら、装置メーカーや材料サプライヤーと協働して、次世代のDRAMおよびHBM向けの高性能かつコスト競争力のある技術開発を推進していただきます。 本ポジションでは、半導体プロセス開発、デバイス物理、CMOS技術に関する高度な知識が求められます。また、データ解析能力や材料分析、表面解析技術への理解も重要です。チームワークと高いコミュニケーション能力は、本職務で成功するための重要な要素となります。 歓迎する技術経験 以下の技術分野における実務経験をお持ちの方を歓迎します。 ・成膜技術 (CVD、ALD、PVD) ・エピタキシャル成長技術 (Si、SiGe、選択成長など) ・ゲートスタックおよび誘電体技術 ・先端パターニングおよびドライエッチ技術 ・ウェット洗浄および表面処理技術 ・イオン注入および熱処理技術 ・コンタクト形成、配線メタライゼーション技術 ・化学機械研磨技術 (CMP) ・ストレスエンジニアリングおよび先端材料統合技術 ・先端トランジスタ開発を含むロジック技術開発 ・メモリCMOSおよび周辺回路向けプロセスインテグレーション技術 主な職務内容 以下を含みますが、これらに限定されません。 ・デバイス、プロセスインテグレーション、および製品要求事項の理解 ・技術目標およびコスト目標達成に向けたプロセス技術ロードマップおよびサプライヤー戦略の策定 ・開発環境および量産環境におけるプロセスレシピの開発、最適化 ・構造解析、材料分析、および電気特性評価データの解析 ・デバイス性能、歩留まり、信頼性、およびコスト競争力向上に向けた技術革新の推進 ・AI（人工知能）を活用した開発業務の効率化、高度化の推進 ・社内関係部門および外部パートナーとの連携による複雑な技術課題の解決 ・技術戦略および開発方針に関する経営層への提言 ・エンジニアの育成、指導を通じた組織能力の向上 ・高い倫理観、オーナーシップ、および他者への敬意を持った業務遂行 応募資格（必須） ・電気工学、物理学、化学工

Our vision is to transform how the world uses information to enrich life for all. Join an inclusive team passionate about one thing: using their expertise in the relentless pursuit of innovation for customers and partners. The solutions we build help make everything from virtual reality experiences to breakthroughs in neural networks possible. We do it all while committing to integrity, sustainability, and giving back to our communities. Because doing so can fuel the very innovation we are pursuing. Job Description As the Global Facilities Regional Engineering Electrical Engineer you will be responsible for providing technical support, expertise, and lead business process alignment on construction project design, management, schedule, cost control, testing & commissioning, operational and maintenance programs for the facility Electrical systems at all manufacturing sites in your location / region. As a global team member residing in your current site/geography, you will represent all facility design standard alignment, construction project management, O&M BKM alignment initiatives. You will also support the Global Facilities Central Engineering Team, Construction Team , Line Planning Team and O&M Team in providing critical design standard alignment, supplier quality improvement, operational and maintenance input and support construction projects. Critical metrics include construction project management, schedule, cost control, safety

MKTQ427R52 Location: San Francisco, CA We're looking for a Chief of Staff to the CMO to provide business leadership and establish operational rigor for the Databricks Marketing organization and support our mission to be the leading enterprise Data + AI company. You will develop an understanding of strategic and operational challenges faced by teams and define appropriate solutions to address such challenges. As a member of the leadership team, directly reporting to the CMO, you will extend the reach of the CMO by acting as a strategic advisor to the Marketing leadership team and managing all the critical business operations of the CMO office, including: AI transformation investment stewardship annual strategic planning company priority initiatives marketing priorities cross-functional initiatives executive presentations marketing performance (ROI) management organizational strategy internal marketing communication The impact you will have: Translate Databricks' company strategy into Marketing annual plans, OKRs, and strategic initiatives Drive marketing alignment and execution by driving company priority and marketing priority initiatives across a 250-person Marketing team Identify and lead cross-functional process improvements that deliver on company-wide efficiency and profitability goals, most notably our AI transformation Accelerate decision-making velocity by owning critical CMO forums (e.g., Marketing leadership, Marketing strategy), running high-impact agendas and follow-through on all action items Increase planning and analytic rigor; improve Marketing ROI and efficiency year-on-year in line with the company’s rapid growth goals, and in partnership with Analytics and Finance Drive marketing-wide and cross-functional alignment by driving CMO communications and exec presentations, including driving All-Staff meetings and quarterly business reviews What we look for: 10+ years of marketing experience, ideally including recent experience at Dire

Our vision is to transform how the world uses information to enrich life for all . Micron Technology is a world leader in innovating memory and storage solutions that accelerate the transformation of information into intelligence, inspiring the world to learn, communicate and advance faster than ever. Your Opportunity Join a high-impact engineering team where your ideas can shape performance across a global semiconductor manufacturing network. In this role, you will lead Spares Engineering initiatives across cost, productivity, quality, and supply resilience , while owning broader strategic programs that extend beyond spares. You will combine technical expertise, data-driven decision-making, and program leadership to solve complex challenges, influence stakeholders across sites and functions, and deliver scalable solutions with measurable business impact. What You Will Lead Spares Engineering Leadership Lead end-to-end Spares Engineering programs that improve equipment availability, cost efficiency, quality, productivity, and supply resilience across the network Serve as the network technical expert and trusted advisor to drive assigned spares categories and related programs Set and execute global category strategies, including lifetime extension, CCRR, alternate sourcing, consumption reduction, and othe

Our vision is to transform how the world uses information to enrich life for all . Micron Technology is a world leader in innovating memory and storage solutions that accelerate the transformation of information into intelligence, inspiring the world to learn, communicate and advance faster than ever. Job Summary – Member of Technical Staff - Agentic AI Architect, Smart Manufacturing AI Pathfinding & Innovation (AIPI) Join an inclusive team passionate about one thing: using their expertise in the relentless pursuit of innovation for customers and partners. The memory solutions we build help make everything from virtual reality experiences to breakthroughs in neural networks possible. We do it all while committing to integrity, sustainability, and giving back to our communities. Because doing so can fuel the very innovation we are pursuing. The Smart Manufacturing and AI team at Micron Technology is looking for an ambitious engineer (Member of Technical Staff | MTS) to deliver industry-winning Agentic AI solutions that power Micron’s dominance in the highly competitive memory solutions market. This role sits at the intersection of applied Agentic AI engineering and production systems work: you will architect autonomous AI Agents and the agentic and data pipelines that power them, build robust CI/CD deployment paths to Kubernetes and containers, and push the limits of agent performance profiling and evaluation to turn massive data and compute into measurable manufacturing impact. Qualified applicants will have experience across data/cloud technologies and systems engineering, with extensive practice modeling data, querying, and deploying scalable pipelines to execute AI agents. You will collaborate with Data Scientists, Data Engineers and expert users to build and deploy scalable Agentic AI solutions th

Our vision is to transform how the world uses information to enrich life for all . Micron Technology is a world leader in innovating memory and storage solutions that accelerate the transformation of information into intelligence, inspiring the world to learn, communicate and advance faster than ever. Position Overview: As a Staff/Principal Equipment Engineer within PROCT ADT, you will provide technical leadership to improve equipment performance, capability, and global manufacturing outcomes. You will lead complex, multi-site initiatives to resolve equipment challenges, enable technology node readiness, and drive yield and defectivity improvements. This role requires deep expertise, strong ownership, and the ability to influence across teams and suppliers to deliver measurable impact in cost, performance, and scalability. Responsibilities Lead global ownership of equipment performance across toolsets, driving improvements in stability, availability, matching, and efficiency. Direct complex, multi-fab root cause analysis for equipment-driven yield, defectivity, and reliability issues using data-driven and physics-based approaches. Provide technical leadership in tool hardware and chamber behavior to expand process capability and improve performance limits. Partner with Technology Development, integration, and process teams to enable node readiness, volume ramp, and disciplined change control. Influence equipment supplier strategy by leading technical engagements, driving design improvements, and aligning roadmaps to business needs. Drive global standardization through development, validation, and deployment of Best Known Methods (BKMs) across sites. Lead initiatives to improve cost of ownership, reduce variation,

SpaceX was founded under the belief that a future where humanity is out exploring the stars is fundamentally more exciting than one where we are not. Today, SpaceX is actively developing the technologies to make this possible, with the ultimate goal of making life multiplanetary and expanding consciousness to the stars. SpaceXSI is building Super Intelligence to help humanity understand the universe. Our teams are building the full Super Intelligence stack: from our Colossus supercomputers, to Grok models, to our suite of applications, including Grok Bot, Grok Build, Grok Imagine, Grok Voice, and X. We're creating a powerful flywheel where more compute trains better models, better models power more useful products, and what we learn from people using those products shapes what we build next. ABOUT THE ROLE: The RL infrastructure team is looking for an engineer to help develop our evaluation infrastructure. RESPONSIBILITIES: Build highly reliable, efficient, and easy to use infrastructure that runs all our evaluations at scale Collaborate closely with modeling & evaluation teams on developing new evals, maintaining evaluation signal quality, and building internal tooling to support training our next-generation of models Identify and resolve performance bottlenecks in all layers of the eval infrastructure stack, including inference, capacity fleet management, asynchronous eval orchestration, and more BASIC QUALIFICATIONS: Experience in building, debugging, and optimizing efficiency of large-scale distributed systems Willingness to dive deep and solve hard problems at all levels of the stack PREFERRED SKILLS AND EXPERIENCE: Experience in LLM inference Experience in GPU compute management, workload scheduling, and dynamic resource optimization Experience in developing interfaces for comparing models and evals COMPENSATION AND BENEFITS: $180,000 - $440,000 USD Base salary is just one part of our total rewards package at SpaceXSI, which also includes equity, comprehen

Our vision is to transform how the world uses information to enrich life for all . Micron Technology is a world leader in innovating memory and storage solutions that accelerate the transformation of information into intelligence, inspiring the world to learn, communicate and advance faster than ever. Job Title: Technical Leadership Plrogram - Member Of Technical Staff – HBM Verification Location: Hyderabad, India Experience : 12+ years in Design Verification (experience with Pre-Silicon Verification OR DDR/GDDR/LPDDRmemory/SerDes PHY IP Verification is preferred) Role Description Join the Micron HBM team where you will drive verification architecture for next-generation HBM, ensuring robust methodologies and sign-off strategies. This role is perfect for a hands-on silicon verification expert who is passionate about developing best-in-class verification methodologies, testbench design, AI enabled verification and developing novel solutions to improve quality and efficiency of verification workflows. Key Responsibilities Define and drive verification architecture and methodology for next generation HBM designs. Develop verification plans, coverage strategies, and sign-off criteria. Architect and implement UVM-based testbenches and reusable verification components. Apply Formal Verification techniques for critical Collaborate strictly with build teams to ensure verification completeness and quality. Mentor and guide verification engineers on guidelines and advanced methodologies. Evaluate and integrate AMS Co-Simulation techniques for mixed-signal IP verification. Work closely with EDA vendors to adopt the l

About Hark Hark is an artificial intelligence company building advanced, personalized intelligence. One that is proactive, multimodal, and capable of interacting with the world through speech, text, vision, and persistent memory. We're pairing that intelligence with next-generation hardware to create a universal interface between humans and machines. While today's AI largely operates through chat boxes and decade-old devices, Hark is focused on what comes next: agentic systems that interact naturally with people and the real world. To get there, we're developing multimodal models and next-generation AI hardware together - designed from the ground up as a single, unified interface for a new era of intelligent systems. About the Role At Hark, you'll lead the development for the foundation of agentic reinforcement learning (RL) environments: the digital worlds in which AI agents learn to use software, navigate complex workflows, and act on their surroundings. Our ambition is to simulate the breadth and complexity of the internet, connecting websites, apps, services, and artifacts into rich, stateful environments, with the potential to evolve dynamically over time. This is a chance to shape both the worlds agents learn in and the systems that make learning at scale possible. You'll build environments end-to-end and work closely with researchers to bring them into RL training and evaluation. You'll also develop the infrastructure behind our agent gym, making these environments easy to integrate, reproduce, and scale across heterogeneous execution targets. Responsibilities Build agent environments and simulations end-to-end, including frontend interfaces, backend services, APIs, data models, tools, and realistic workflows used to train and evaluate AI agents. Build the infrastructure that powers our agent gym, including orchestration, sandboxing, packaging, benchmarking, and systems for running environments across heterogeneous targets. Create interconnected simulations w

APPLICATIONS CLOSED The general application portal has closed for 2026. We will reopen applications at some point in 2027. Thank you for your interest in Perplexity careers! Welcome! This is the general application portal for university students and recent graduates who wish to be considered for full-time Member of Technical Staff positions at Perplexity. Our elite new grad cohorts enjoy unparalleled mentorship, top-of-market compensation, and the chance to tackle some of the deepest, thorniest challenges in frontier intelligence . NOTE: if you attend one of our focus schools listed below, please do not apply via this portal as it is infrequently monitored due to high volume. Apply instead via the school-specific application portal below to ensure your application receives priority attention. Focus schools (United States) - application portals Caltech | Columbia | Cornell | CMU | Duke | Georgia Tech Harvard | MIT | Michigan | Northwestern | NYU | Penn Princeton | Purdue | Stanford | UC Berkeley | UChicago UCLA | UIUC | UNC Chapel Hill | UT Austin UWashington | Yale Focus Schools (Canada) - application portals McGill | UBC | UToronto | Waterloo Early Career Talent @ Perplexity ​Perplexity believes that exceptionally talented individuals at any stage can thrive in our high-velocity, high-ownership culture. ​Our early career talent program revolves around: ​ Breadth : New grads at Perplexity work across the stack, from Perplexity's agent harnesses to our AI inference and training systems. Many of our most beloved features and most important systems were shipped by individuals fresh out of school. ​ Depth : New grads are entrusted (and expected) to dive deep into whatever problem domains you work on. Often, your work will require you to become a world expert in some problem space that few others in the world have encountered. ​ Mentorship & Growth : We keep the size of our entering new grad cohorts at well below 10% of our technical team. Each individual enjoys a ri

About Snorkel Snorkel AI is the frontier AI data lab, helping teams build the data and environments behind high-performing frontier and agentic AI. We combine technology with research-driven AI data development to create datasets, benchmarks, evals, and custom solutions for real-world AI systems. Founded out of the Stanford AI Lab in 2019, Snorkel works with leading AI labs and enterprises to move from better data to better outcomes. Excited to help us redefine how AI is built? Apply to be the newest Snorkeler! In September 2026 we raised a $350 million Series E at a $3.5 billion valuation , and we are scaling our engineering and research teams to meet demand. The role Frontier AI data is expensive to make and hard to measure. Every task we deliver is tested against the strongest models, often through many long-running agent rollouts. Your job is to make that process faster, cheaper, and more rigorous with ML and AI You will be one of the early members of ML & Research Engineering at Snorkel. You will study how frontier-grade data is generated and evaluated, form hypotheses, validate them against real production data, and ship the winners at scale. You will shape the discipline's direction, its standards, and the team that grows around it. What you'll work on Efficient agentic evals. Cut the cost of long-horizon agent evaluation with adaptive sampling, statistically grounded early stopping, model cascades, caching, and cheap-first gating. AI model routing. Route every eval and judge call to the cheapest model that clears the quality bar, with fallback, monitoring, and cost attribution. Fine-tuned small models. Fine-tune and serve open-weight models (LoRA and other parameter-efficient methods) where they match frontier quality, and know when they don't. Predictive difficulty. Build models that estimate how hard a task is for frontier systems before running a single rollout. Measurement for AI data. Build golden datasets, quantify the accuracy and calibratio

Perplexity is seeking a DevOps engineer to join our small team in revolutionizing the way people search and interact with the internet. You will be responsible for leading the design, implementation, and scaling of the infrastructure, tooling and systems that support our Search feature. The ideal candidate should have experience in designing highly scalable infrastructure, building systems, tools and performing testing, monitoring, and maintenance. Our backend stack includes Python, Go, Rust, PostgreSQL, DynamoDB, Redis, and Kubernetes - built alongside dedicated in-house AI and search interfaces. Responsibilities: Design and implement highly available, high-performance, and scalable systems. Design and implement various tools for other engineers helping them with their day to day job. Design and implement CI/CD and other workflows to enhance stability, robustness and speed of iteration. Maintain and optimize key-value and relational databases. Scale and load balance web server backends to meet rapidly changing needs. Monitor systems and applications, proactively identifying and resolving reliability, scalability, or performance issues. Develop monitoring tools, alerts, and dashboards to provide visibility into system health and performance. Qualifications: Strong experience with cloud infrastructure built on AWS. Proficient in database management and caching strategies. Excellent problem-solving and troubleshooting skills, with the ability to analyze, debug, and resolve complex technical issues. Experience working with containers (Docker, Kubernetes) and orchestration tools. Excellent communication and collaboration skills. Experience with Python and Terraform. 3+ years of DevOps/SRE/System Administration experience.

NOTE ON ELIGIBILITY : this role is for industry candidates already working in software engineering for the past 1+ years. New grads and current students should NOT apply to this role (instead, visit pplx.ai/newgrads ). About the role In 2026, we launched Computer, the defining product for the new era of agentic AI. Millions of people now use Perplexity to transform knowledge into action, through Search, Comet, and Computer. Product Engineering owns those experiences end to end, from the interface a user touches to the search and model calls behind it, on top of roughly 200M queries a day and a 200B+ URL index. This is a full stack role in the truest sense. There are no frontend or backend lanes here, and no one waits for a ticket before starting. It suits people who love to build and want the room to do it. What you have shipped and how quickly you learn tell us far more than years on a resume or where you went to school. What you will do Own a user-facing surface end to end, from the interaction, design, and frontend through the application logic, APIs, data models, and the search or model calls behind them. Ship to production continuously. New engineers typically have code in front of users in their first week. Build with AI as a primary tool, not a novelty. We expect you to use agents and coding models aggressively to move faster, and to have sound judgment about when their output is wrong. Turn ambiguous product ideas into working prototypes, then use real usage data and evals to decide what survives. Raise the quality bar on reliability, latency, and craft for the surfaces you own. Work directly with designers, PMs, and research engineers, without unnecessary process in between. What we look for 1+ years of professional software engineering experience, or a track record of strong internships where you shipped production code at scale. Strong in at least one backend language, such as Python or Go, with real experience across services, APIs, and relational data m

The Chief of Staff is a high-visibility leadership role responsible for the operational success of the SVP, General Manager’s organization. Acting as a strategic partner, you will ensure the business operates at peak velocity by driving key initiatives, improving organizational effectiveness, and aligning teams around strategic priorities. You will translate high-level goals into clear execution plans across the business, providing clarity in a fast-paced, complex environment. This role is designed for a seasoned operator who excels at driving accountability among senior leaders and building the systems necessary to scale a SaaS business. You will identify operational gaps, mitigate risks before they impact the bottom line, and act as an extension of leadership—prioritizing, executing, and communicating critical projects to enable the executive team to operate at maximum efficiency. ** Please note that this opportunity is located in New York, NY, and requires this hire to work from our office 5 days a week. ** As a Chief of Staff You Can Expect: Drive the Operating Cadence: Design and manage the GM's leadership meetings, QBRs, and planning cycles to keep the team aligned and hitting KPIs. Force Execution: Partner with Sales, Customer Success, Account Management, Implementation, Product leaders to unblock projects and hold senior stakeholders accountable for deliverables. Own Plan Integrity: Keep the team aligned to the quarterly and annual plan, hold leaders accountable for the commitments behind it, and flag risk early, before it shows up as a miss in the business review. Drive Alignment & Follow-Through: Ensure decisions and commitments made in leadership meetings are clearly communicated across the team, tracked to completion, and actually followed through on, closing the loop between what was decided and what gets done. Prioritize Ruthlessly: Act as a surrogate for the GM in high-level meetings, surfacing critical risks early and filtering out noise to focus