Principal Machine Learning Engineer- LLM Fine-tuning and Optimization Airbnb IncPrincipal Machine Learning Engineer- LLM Fine-tuning and OptimizationSan Francisco, CARemote$292,000–$365,000 / yearThe team develops and enhances various AI models, ML services and tools including LLM fine-tuning, alignment and optimization, RAG/Search, LLM evaluation and testing automation, feedback-based learning and guardrail for a wide range of applications in Airbnb. Post-training experience in areas like data processing for fine-tuning; responsible LLMs; LLM alignment; reinforcement learning; efficient training and inference; language model evaluation; and/or multilingual and multimodal modeling.
Senior Software Engineer, Upstart Bank Upstart Holdings IncSenior Software Engineer, Upstart BankCARemote$166,900–$230,900 / yearBy moving from a fragmented, state-based system to a unified federal framework, Upstart Bank enables more consistent borrower experiences, reduces structural costs, and unlocks opportunities to improve pricing and access to credit at scale. And whether you choose to work primarily from home or collaborate in-person from one of our offices in Columbus, Austin, the Bay Area, or New York City (opening Summer 2026), you'll have the support to work in the way that works best for you.
NewForward Deployed Engineer- Snowflake Deloitte Touche Tohmatsu LtdForward Deployed Engineer- SnowflakeSan Francisco, CA$134,500–$265,100 / yearAt Deloitte, Forward Deployed Engineers (FDE) don't just build AI solutions, they help clients turn AI ambition into enterprise-scale impact, pairing leading class engineering with pod-based delivery and vertical expertise. This requires a highly motivated practitioner who moves with speed and precision, building working software, engaging confidently with senior stakeholders and engineers to bring measurable business impact from day one.
NewSenior Forward Deployed Engineer, Palantir Deloitte Touche Tohmatsu LtdSenior Forward Deployed Engineer, PalantirSan Francisco, CADemonstrated use of Claude Code to accelerate delivery, including agentic multi-file workstreams, CLAUDE.md project memory, MCP server integrations, and parallel subagents for concurrent work such as feature development, test generation, and security review. At Deloitte, Forward Deployed Engineers (FDE) don't just build AI solutions, they help clients turn AI ambition into enterprise-scale impact, pairing leading class engineering with pod-based delivery and vertical expertise.
Senior or Principal Electrical Design Engineer - Data Center Mission Critical Enercon Services IncSenior or Principal Electrical Design Engineer - Data Center Mission CriticalEmeryville, CA$107,200–$180,000 / yearYou develop precise, high-quality designs, coordinate with other disciplines, and connect with clients to ensure solutions meet real-world needs. Client & Cross-Disciplinary Collaboration: Build strong relationships with clients through professional interactions and communications, and through the development of quality engineering products.
Principal Software Engineer, Full Stack, Event Technology Salesforce IncPrincipal Software Engineer, Full Stack, Event TechnologySan Francisco, CA$197,300–$313,700 / yearIn addition to Events Technology, you will play a part in other public web experiences including www.tableau.com, www.mulesoft.com, and "role based" sites such as the developer, admin, and architect subdomains of Salesforce.com. Our industry-leading platforms and solutions help connect target audiences to the content they need, when and where they need it - making it as easy as possible for them to learn how to use Salesforce products and drive business growth.
Software Engineer I, Discovery TwitchSoftware Engineer I, DiscoverySan Francisco, CAOur consumer facing features span both web and mobile surfaces, we’re working hard to build fast, reliable, and easy to understand client-side experiences. The Discovery Team in App Experiences manages a wide array of features and systems to help communities form, grow, and thrive on Twitch.
Principal Engineer, Confidential AI Opaque SystemsPrincipal Engineer, Confidential AISan Francisco, CaliforniaOwn the integration of the open agent-governance stack (Confidential MCP, Agent Manifest, TRACE) into OPAQUE Agent Control and OPAQUE Confidential Core, bound to hardware attestation and TEEs (AMD SEV-SNP, Intel TDX, NVIDIA Confidential Computing). Its Confidential AI platform delivers verifiable runtime governance backed by cryptographic proof that data, models, and agent actions remain private, governed, and compliant with approved policies throughout every AI workflow.
Software Engineer, Agentic AI Infrastructure Anrok, Inc.Software Engineer, Agentic AI InfrastructureSan Francisco, CARemoteWe're looking for an engineer who pairs a strong distributed-systems background with real, hands-on experience building AI agent systems-someone who understands both how to make a service fault-tolerant and what it takes to make an LLM-powered agent reliable in production. As the digital economy has grown 6x over the last decade, software businesses have gone from not worrying about sales tax to needing to monitor exposure, calculate rates, and file returns across 50 US jurisdictions and 100+ countries.
Senior Backend Software Engineer – Node.js | Java | Python | AWS | APIs | Data Pipelines | MarTech Pyramid, IncSenior Backend Software Engineer – Node.js | Java | Python | AWS | APIs | Data Pipelines | MarTechOakland, CA$60–$65 / hourFull timeKey Requirements and Technology Experience: 3 5+ years of Backend Software Engineering experience Strong hands-on experience with one or more: Node.js Java (Spring Boot) Python Go JavaScript API Development & Integrations REST APIs Third-party API integrations OAuth Authentication IAM Roles Cross-account authentication Secure API design Data Engineering Experience working with: SQL NoSQL Data Pipelines Batch Processing Streaming Data Technologies include: Kafka AWS Kinesis Auto Loader COPY INTO Cloud Experience Strong experience with one or more: AWS Azure Google Cloud Platform (GCP) Experience with: S3 IAM Serverless Cloud Compute Cloud-native application development Containerization Experience with: Docker Kubernetes Experience with any of the following is highly desirable: Databricks Delta Lake Lakehouse Architecture Data Lakes React Angular Vue.js CI/CD GitHub Actions Microservices Event-Driven Architecture Distributed Systems Marketing Technology (MarTech) Retail Technology AI-assisted development tools (GitHub Copilot, Cursor, ChatGPT, Claude) Our client is a leading Hospitals and Health care Industry and we are currently interviewing to fill this and other similar contract positions. By applying to our jobs you agree to receive calls, AI-generated calls, text messages, or emails from Pyramid Consulting, Inc. and its affiliates, and contracted partners.
NewPrincipal Engineer - Kubernetes Platform Atlassian CorpPrincipal Engineer - Kubernetes PlatformSan Francisco, CASuccess will be measured by sustained outcomes-not activity-including safer workloads, faster iteration, reliable services, and leverage across Atlassian. As a Principal Engineer with Deep Engineer archetype in Kubernetes Platform, you will own technically complex, high-impact outcomes from problem definition through production.
Senior Backend Engineer - Product Mercury Technologies IncSenior Backend Engineer - ProductSan Francisco, CA$166,600–$208,300 / yearAs part of this role, you will: Feel a strong sense of product ownership and actively seek responsibility - we often self-organize on small/medium projects, and we want someone excited to help shape and build Mercury's future. Actively incorporates AI tools into their workflow and is excited about leveraging them to amplify their impact - whether that''s accelerating development, improving code quality, or finding creative solutions to hard problems.
Principal Engineer Atlassian CorpPrincipal EngineerSan Francisco, CAAs a Principal Engineer on the AI & ML Platform team, you will play a pivotal role in developing and refining the core infrastructure that empowers all Atlassian software engineers, ML engineers, and data scientists to create, train, evaluate, deploy, and manage Machine Learning models and pipelines. Generative AI systems: Experience with GenAI frameworks and tools, including developing and fine-tuning large language models (LLMs) and building retrieval-augmented generation (RAG) systems.
Senior Site Reliability Engineer- San Francisco, CA, The US KodySenior Site Reliability Engineer- San Francisco, CA, The USSan Francisco, CASenior Site Reliability Engineer (Payments Infrastructure) Kody is seeking a Senior Site Reliability Engineer to ensure the reliability, availability, scalability, and operational excellence of our global payment platform. You will own production observability, incident response, service-level management, and cloud infrastructure reliability across mission-critical payment processing systems operating in Europe, Asia, and North America.
Senior Software Engineer, Events Hayden AI Technologies Inc.Senior Software Engineer, EventsSan Francisco, CAFrom bus lane and bus stop enforcement to transportation optimization technologies and beyond, our innovative mobile perception system empowers our clients to accelerate transit, enhance street safety, and drive toward a sustainable future. As a Senior Software Engineer on the Platform - Cloud Events team, you will ensure that data captured by Hayden's devices is properly validated and assessed by the powerful ML models that run in the Cloud.
Lead Software Engineer, Embedded Systems Salesforce IncLead Software Engineer, Embedded SystemsSan Francisco, CA$172,500–$260,100 / yearAs a Lead Software Engineer, your job responsibilities will include: Envision and Build new and exciting components/frameworks in distributed filesystems in an ever-growing and evolving market technology to provide scale and efficiency. Build efficient components/algorithms on a microservice multi-tenant SaaS cloud distributed filesystem environment, Code review, mentoring junior engineers, and providing technical guidance to the team.
Staff Software Engineer, Backend Deal reporting Affirm IncStaff Software Engineer, Backend Deal reportingSan Francisco, CARemoteAdditional benefits include: Type of employment: Contract of Employment Flexible Spending Wallets for tech, food and lifestyle Away Days - wellness days to take off work and recharge Learning & Development programs Parental benefits Employee Resource & Community Groups. We are looking for a highly motivated Staff Software Engineer to help empower Deal Reportings first international team, and build integrations, services, and testing infrastructure to power the funding of every Affirm loan.
AI Engineer AvathonAI EngineerPleasanton, CA$110,000–$130,000 / yearThis role is ideal for someone with strong engineering depth who can bridge research and production—building robust AI platforms, optimizing LLM workflows, and delivering high-impact solutions across forecasting, route optimization, anomaly detection, predictive maintenance, and intelligent automation. As an AI Engineer, you will play a critical role in designing, developing, and deploying scalable AI systems with a strong focus on Generative AI, Large Language Models (LLMs), and production-grade machine learning applications.
Lead Engineer, Computational Knowledge Graph AvathonLead Engineer, Computational Knowledge GraphPleasanton, CA$150,000–$220,000 / yearCategory Technologies Languages Python (primary), Scala, IQL Graph Platforms Neon/Maana (proprietary), Neo4j concepts Cloud GCP (primary), AWS, Azure Data SQL, NoSQL, Time Series DBs APIs REST, GraphQL concepts ML Integration TensorFlow, PyTorch, NumPy CI/CD Travis CI, Jenkins Interview Process. Avathon is the leading Industrial AI autonomy platform, helping customers across heavy industries -- energy, mining, manufacturing, aerospace, defense, and logistics -- accelerate the journey toward autonomous operations.
Software Engineer III - Cloud Data Platform GuidewireSoftware Engineer III - Cloud Data PlatformSan Mateo, CaliforniaIn your first six months, you’ll lead the hands-on design and implementation of core components for Guidewire’s next-generation data platform, collaborating with cross-functional teams to deliver scalable, secure, and high-performing solutions. Join Guidewire’s Data Platform and Analytics team, a group dedicated to building and operating our enterprise-grade, cloud-native data platform that powers mission-critical insights for the world’s leading P&C insurers.
NewData Engineer - Senior/Lead Salesforce IncData Engineer - Senior/LeadSan Francisco, CA$172,500–$260,100 / yearDesign tailored data structures (fact/dimension models, wide analytical tables) and end-to-end infrastructure for data science work: feature pipelines, model-ready training datasets, experimentation data, and the plumbing required for reliable ML and statistical workflows. Bring strong SQL optimization and performance tuning expertise in high-volume, parallel-processing environments, working with the team's stack: SQL, Python, Airflow, AWS, Spark, Tableau, Hadoop (and adjacent tools like dbt, Snowflake, and Databricks where they fit).
NewSenior Software Engineer, Training & Experimentation Lightning AISenior Software Engineer, Training & ExperimentationSan Francisco, CA$180,000–$250,000 / yearYou''ll work across distributed training infrastructure, workload orchestration, experiment management, developer tooling, and platform APIs while partnering closely with our Managed Infrastructure, Core Platform, and Optimized Compute teams. This is an opportunity to build systems that support real-world AI workloads at scale while shaping the developer experience used by researchers, startups, and enterprise AI teams around the world.
Staff Software Engineer Payments GoFundMe, Inc.Staff Software Engineer PaymentsSan Francisco, CA$195,000–$293,000 / yearYou''ll help bring more of our core payments capabilities in-house - reducing reliance on external vendors and fintech partners for compliance and control reasons - while designing and implementing the end-to-end product lifecycle for payout solutions, from ideation to launch and iteration. The GoFundMe team is seeking a Staff Software Engineer to join our Payments organization on the Payouts team, helping us build and scale next-generation payments infrastructure capable of handling billions of dollars in transactions.
NewSenior Software Engineer, Agents Lightning AISenior Software Engineer, AgentsSan Francisco, CA$180,000–$250,000 / yearAs AI agents move from prototypes to production, developers need reliable systems for orchestrating workflows, coordinating models, executing tools, and managing long-running state. You''ll work on orchestration frameworks, tool execution, workflow management, memory and state handling, and developer-facing APIs that enable customers to build sophisticated AI applications with confidence.
NewSenior Software Engineer ChartmetricSenior Software EngineerSan MateoYou’ll be a true full-stack engineer, comfortable building polished user experiences, backend services, APIs, and data-driven systems using TypeScript, React, Next.js, Node.js, PostgreSQL, and AWS. We’re looking for someone with strong technical judgment, broad engineering depth, and experience leading important projects from idea through production.
NewSr. DNS Engineer Salesforce IncSr. DNS EngineerSan Francisco, CA$148,500–$223,900 / yearAs a member of the DNS Operations team, you will be responsible for incident management on all aspects of the production DNS solution, including performing break/fix and proactive maintenance to resolve outages and minimize the potential for future impact. Provide first-line customer support and technical expertise for Hyperforce DNS-related issues to determine the root cause of DNS outages to implement workarounds and permanent solutions.
Founding Engineer HMBLFounding EngineerSan Francisco, CAWe leverage best industry practices, historical and predictive data and AI to acquire the industry's top 5% of technical talent. Experienced in Nginx, Kafka, MySQL, Cassandra, Redis, and big data platforms.
Associate Principal Software Engineer, AI Onboarding SaviyntAssociate Principal Software Engineer, AI OnboardingSan Francisco, CAIn a world of digital transformation, where organizations are faced with increasing cyber risk but cannot afford defensive measures to slow down progress, Saviynt’s Enterprise Identity Cloud gives customers unparalleled visibility, control and intelligence to better defend against threats while empowering users with right-time, right-level access to the digital technologies and tools they need to do their bestwork. Strong Experience as a Java Engineer developing applications based on Security principles, cloud platforms (AWS, Azure, or Google Cloud) and Containerization (Docker, Kubernetes).
Sr. Full Stack Engineer Right Hire ConsultingSr. Full Stack EngineerSan Francisco, CaliforniaWere looking for a Senior Full-Stack Engineer to design and deliver high-impact product features and backend services that turn complex GTM data into actionable insights. You'll build intuitive user interfaces in React/TypeScript and robust APIs with Python FastAPI/GraphQL, powering seamless agent workflows.
Staff Ios Engineer (React Native) VSCOStaff Ios Engineer (React Native)San Francisco, CA$230,000–$260,000 / yearYou'll act as a technical leader who guides the team through complex challenges, champions best practices, and anticipates what's coming around the corner so the team can stay ahead. We hire people who don't wait to be asked, naturally connect the dots, care about the quality of what they ship, and believe the best outcomes come from building together.
Staff Software Engineer, Backend Deal Reporting Affirm IncStaff Software Engineer, Backend Deal ReportingSan Francisco, CARemoteAdditional benefits include: • Flexible Spending Wallets for tech, food and lifestyle • Away Days - wellness days to take off work and recharge • Learning & Development programs • Parental benefit • Employee Resource & Community Groups. We are looking for a highly motivated Staff Software Engineer to help empower Deal Reportings first international team, and build integrations, services, and testing infrastructure to power the funding of every Affirm loan.
Senior Staff Software Engineer, Backend Platform Patreon IncSenior Staff Software Engineer, Backend PlatformSan Francisco, CAWe offer creators a variety of ways to engage with their fans and build a lasting business including: paid memberships, free memberships, community chats, live video, and selling to fans directly with one-time purchases. Were continuing to invest heavily in building the best creator platform with the best team in the creator economy and are looking for a Senior Staff Backend Platform Engineer to support our mission.
Staff Machine Learning Engineer Pricing GoFundMe, Inc.Staff Machine Learning Engineer PricingSan Francisco, CA$215,000–$322,000 / yearIn this role, you will design, develop, and deploy machine learning systems that power pricing and monetization programs across GoFundMe such as personalized donation and checkout experiences, donation yield optimization (one-time and recurring), recurring donor LTV optimization, fundraising goal suggestions, and more. Experience designing and deploying real-time model serving (sub-100ms to low-hundreds ms latency targets), including containerization, scalable inference, feature retrieval, and safe rollout strategies (canaries, shadowing, backward-compatible schema evolution).
Senior Software Engineer, Mesh Traffic Affirm IncSenior Software Engineer, Mesh TrafficCARemote$195,000–$255,000 / yearThe Trust Infra team elevates the security posture of our infrastructure and services by embedding security in everything from provisioning to deployment, improving developer experience through automation, and building guardrails that enable safe, rapid delivery. You will support your peers and stakeholders in the product development lifecycle by collaborating with product management, design & analytics by participating in ideation, articulating technical constraints, and partnering on decisions that properly consider risks and trade-offs.
Software Engineer III - UnderwritingCenter GuidewireSoftware Engineer III - UnderwritingCenterSan Mateo, CaliforniaCollaborate within agile, fast-paced development teams, delivering product features and enhancements while consistently helping teammates overcome obstacles, resolve blockers, and complete work tasks to ensure overall team progress. As part of Guidewire’s PDO, you will contribute to our wider mission of delivering operational excellence and transformative innovation, with a strong focus on AI, cloud, and data platform adoption—ensuring our solutions deliver measurable value and efficiency for customers worldwide.
NewInfrastructure Engineer ChalkInfrastructure EngineerSan Francisco, CaliforniaAt Chalk we are solving problems drawn from the fields of DBMS query planning & optimization, compilers, and distributed analytical data processing systems. Leading companies depend on Chalk for everything from stopping fraudulent credit card swipes, verifying identities, and maximizing clean energy capture.
Software Development Engineer in Test (SDET) - (Remote) Metallicus Inc.Software Development Engineer in Test (SDET) - (Remote)San Francisco, CARemote$100,000–$130,000To date, we have launched and operate Metal Pay (digital banking and crypto wallet) and XPR Network, a distributed ledger for identity and interaction with the card and banking payments settlement layer. Implement robust testing strategies for blockchain RPC endpoints—including data integrity checks, performance baselines, failure-mode validations, and conformance to JSON-RPC specifications.
NewDevOps / Site Reliability Engineer ID70127 AgileEngineDevOps / Site Reliability Engineer ID70127San Francisco, CAWe are looking for a DevOps / Site Reliability Engineer to maintain operational resilience and 24/7 stability for a multi-cloud enterprise security program, serving as Incident Commander on major and critical incidents while also owning IaC, CI/CD pipelines, and CSPM telemetry. You will drive major-incident calls, own post-incident remediation follow-through, draft stakeholder communications, and develop divisional incident-management playbooks alongside multi-cloud security guardrails using Terraform and Wiz.
Senior Site Reliability Engineer- San Francisco, CA, the US KodySenior Site Reliability Engineer- San Francisco, CA, the USSan Francisco, CAYou will own production observability, incident response, service-level management, and cloud infrastructure reliability across mission-critical payment processing systems operating in Europe, Asia, and North America. Data-driven mindset with the ability to leverage metrics, telemetry, trends, and service-level indicators to prioritize reliability investments and operational improvements.
AI Engineer, Intern Postman IncAI Engineer, InternBerkeley, CAContribute to APIFlow-Bench, our open-source benchmark for real API-development work: design and review benchmark tasks and their mock API environments, extend the evaluation harness and task-generation pipeline in Python, and help maintain the public multi-model leaderboard with statistical confidence intervals. Fine-tune open-weight models for tool calling and agentic tasks (SFT, distillation, and RL) using PyTorch and the open-source training ecosystem, on both managed training platforms and self-managed cloud GPUs.
Staff Software Engineer (SF) ShepherdStaff Software Engineer (SF)San Francisco, CaliforniaWe're building the risk infrastructure for the next generation of financial services, where technology, underwriting, and partnerships operate in harmony to support the world's most important industries and the progress they make possible. In March 2026, Shepherd raised a $42M Series B — bringing total funding to over $60M — led by Intact Private Capital, the investment arm of one of the largest insurers in the world.
Software Engineer, AI Product + Agents ShepherdSoftware Engineer, AI Product + AgentsSan Francisco, CaliforniaWe're building the risk infrastructure for the next generation of financial services, where technology, underwriting, and partnerships operate in harmony to support the world's most important industries and the progress they make possible. The best product calls here come from engineers who've sat with underwriters and underwriters who understand where the model breaks, and much of this job is listening closely enough on both sides to make that happen.
Software Engineer, Backend ShepherdSoftware Engineer, BackendSan Francisco, CaliforniaWe're building the risk infrastructure for the next generation of financial services, where technology, underwriting, and partnerships operate in harmony to support the world's most important industries and the progress they make possible. In March 2026, Shepherd raised a $42M Series B — bringing total funding to over $60M — led by Intact Private Capital, the investment arm of one of the largest insurers in the world.
Senior Backend Engineer, Managed Kubernetes & Slurm Lightning AISenior Backend Engineer, Managed Kubernetes & SlurmSan Francisco, CA$180,000–$250,000 / yearAs a Senior Backend Engineer on the Managed Services team, you'll build the control planes, backend services, and automation that provision, operate, and scale Kubernetes and Slurm clusters across our GPU fleet. Lightning AI runs one of the largest AI-native clouds, with 25,000+ H100, B200, and GB300 GPUs powering organizations building, training, and deploying AI at scale.
Machine Learning Engineer Checkr IncMachine Learning EngineerSan Francisco, CA$168,000–$198,000 / yearComfort with and enthusiasm for AI-assisted workflows; experience using LLMs, code-generation tools, or agentic systems in production or operational contexts is a strong signal. Checkr's innovative technology and robust data platform help customers assess risk and ensure safety and compliance to build trusted workplaces and communities.
NewProduct Support Engineer Formic Technologies, Inc.Product Support EngineerOakland, CABy removing the traditional barriers of cost, complexity, and risk, we enable manufacturers to deploy automation quickly and realize measurable gains in throughput, safety, and operational efficiency without large upfront capital investment. You will be the connective tissue that brings product expertise and support knowledge to the broader Fleet Operations org and the Field Service Engineering team specifically.
Lead Software Engineer - Platform Services Salesforce IncLead Software Engineer - Platform ServicesSan Francisco, CA$172,500–$260,100 / yearExperience with AWS components like API Gateway, Lambdas, SNS, SQS, ElastiCache, AppSync etc and NoSQL databases like DynamoDB, Graph databases (Neo4j, Neptune, etc), and Data streams (Kafka, Kinesis, etc). You'll partner closely with engineering, product, architecture, and platform teams to design and build scalable cloud-native services that power Salesforce's global digital ecosystem.
Senior Software Engineer, Developer Experience Crusoe Energy Systems LLCSenior Software Engineer, Developer ExperienceSan Francisco, CA$172,425–$209,000 / yearWere looking for problem-solving, opportunity-finding teammates with a sense of urgency, who believe in the scale of our ambition and thrive on a path not fully paved - people who want to grow their careers alongside a team of experts across energy, manufacturing, data center construction, and cloud services. Language & Version Control Mastery: Expertise in modern programming languages (specifically Go) and advanced proficiency in Git-based workflows (GitLab/GitHub).
Mechanical Design Engineer, Energy Storage Redwood Materials IncMechanical Design Engineer, Energy StorageSan Francisco, CA$117,500–$227,500 / yearThis position starts as a senior individual contributor, where you'll be responsible for designing critical mechanical components and systems related to high power electronics, including thermal management, harnessing, enclosures, structures, and reliability while also collaborating closely with electrical, software, and systems engineering teams. Responsibilities will include: Lead and execute the mechanical design and development of a high-volume, high-power energy conversion product from concept to deployment, including thermal management, authoring requirements, structural design, packaging/integration of power electronics, and integration with grid infrastructure.
NewSenior Bridge Design Engineer Consor EngineersSenior Bridge Design EngineerWalnut Creek, California$120,000–$200,000 / yearFull timeWork-Life Alignment – Industry-competitive PTO, seven paid holidays and two floating holidays, flexible work schedules, paid parental leave, and eligibility for hybrid and remote work options for some employees based on role responsibilities. •While performing the duties of this job, physical demands of the employee include frequent sitting, moving, standing, talking, hearing, and occasional balancing, stooping, kneeling, crouching, reaching, handling, grasping, and feeling.