Principal Senior Machine Learning Scientist Jobs

Location Details: Canada - Ontario At GoDaddy the future of work looks different for each team. Some teams work in the office full-time; others have a hybrid arrangement (they work remotely some days and in the office some days) and some work entirely remotely. This is a remote position in Ontario Canada, so you’ll be working remotely from your home. You may occasionally visit a GoDaddy office to meet with your team for events or meetings. Join our team GoDaddy is on a mission to empower small and medium entrepreneurs to sell anywhere. GoDaddy Payments plays a key role by enabling GoDaddy customers to accept payments across channels with some of the lowest processing fees in the industry. As a Principal Product Manager on the GoDaddy Commerce team, you will lead the strategy and development of merchant capital products. You will define the end-to-end experience and platform capabilities that enable GoDaddy customers to qualify for, access, and manage working capital. You will have the opportunity to build and scale a GoDaddy-controlled capital offering while balancing merchant experience, credit risk, regulatory requirements, and business performance. Your work will directly affect the growth and profitability of GoDaddy Commerce. What you'll get to do... Define the product strategy, business case, and delivery roadmap for Capital on Us, a GoDaddy-controlled merchant capital offering. Own the end-to-end merchant experience, including discovery, prequalification, application, offers, funding, repayment, renewals, and servicing. Partner with Credit and Risk to develop underwriting models, eligibility policies, decisioning strategies, pricing, and risk guardrails. Evaluate funding and operating models, including warehouse and lending partners, funding capacity, risk-sharing structures, vendor economics, and build-versus-partner decisions. Partner across Engineering, Design, Data, Finance, Legal, Compliance, Operations, and Go-to-Market to prioritize and launch new capa

Job Title: Band 8b Clinical Psychologist – Low Secure Male Mental Health Banding: Band 8b Location: Birmingham – easily accessible from central Birmingham and surrounding areas Working Hours: Minimum 3 days per week, full-time available Salary: Competitive, in line with NHS rates Are you a Band 8b Clinical Psychologist with experience in secure settings? We’re recruiting for a temporary role supporting adult men with complex mental health conditions at a specialist site in Birmingham. This is a brilliant opportunity to work flexibly (minimum 3 days per week) in a low secure ward, delivering impactful psychological care in a well-supported environment. The role offers competitive rates and the chance to contribute meaningfully to a service focused on recovery and rehabilitation. Responsibilities In this role, you will: Provide specialist psychological assessments and interventions for men with complex mental health needs. Work as part of a multidisciplinary team to support care planning, formulation, and risk management. Deliver trauma-informed, evidence-based therapies tailored to individual needs. Offer consultation and supervision to colleagues where appropriate. Contribute to service development and clinical governance initiatives. Benefits Competitive pay aligned with NHS Band 8b rates Flexible working – minimum 3 days per week Opportunity to work in a specialist low secure setting Supportive and collaborative team environment Professional development and CPD opportunities Qualifications and Experience We welcome applications from Clinical Psychologists who: Are HCPC registered Have experience working in secure or forensic settings, ideally with male patients Are confident in delivering psychological interventions in complex environments Can work autonomously and collaboratively within a multidisciplinary team If you don’t meet every requirement but feel this role aligns with your experience and interests, we still encourage you to apply! How to Apply Apply dire

Role Overview We’re looking for a Principal Software Engineer to help shape the next generation of our enterprise SaaS platform. You’ll combine deep hands-on engineering with technical leadership, helping teams design scalable systems, modernize our platform and solve complex engineering challenges. You’ll work across backend, frontend, cloud and AI technologies while defining technical direction and staying close to the engineering work. A key part of this role will be driving the adoption of AI-native software engineering practices, including AI-PDLC (AI-enabled Product Development Lifecycle) and Spec-Driven Development, using tools such as Cursor, Claude Code, GitHub Copilot and other AI coding and agentic development tools. This role is ideal for someone who enjoys solving complex problems, designing systems at scale, influencing architecture, establishing modern engineering practices and mentoring experienced engineers. Here’s a breakdown of what you’ll do Define and evolve the technical architecture of our SaaS platform and create high-level and low-level designs (HLD/LLD) for complex systems. Translate business and product requirements into scalable technical designs, implementation plans and engineering deliverables. Establish and drive Spec-Driven Development, using structured requirements, architecture specifications, API contracts, data models and acceptance criteria to guide development. Drive adoption of AI-PDLC, integrating AI across requirements, architecture, implementation, testing, code review, deployment and operations. Establish AI-assisted development workflows using Cursor, Claude Code, GitHub Copilot and similar AI coding agents, while maintaining engineering quality, security and architectural consistency. Design secure, scalable and reliable distributed, microservices and event-driven systems. Build and evolve backend services and APIs primarily using Node.js/TypeScript and Python, while remaining open to other modern technology stacks. Cont

About us Graphcore is a globally recognised leader in Artificial Intelligence computing systems. The company designs advanced semiconductors and data centre hardware that provide the specialised processing power needed to drive AI innovation, while delivering the efficiency required to support its broader adoption. As part of the SoftBank Group, Graphcore is a member of an elite family of companies responsible for some of the world’s most transformative technologies. Job Summary Working within the Silicon verification team, the silicon verification engineer is responsible for a wide range of tasks within the silicon verification team. This person is responsible for verification activities within Graphcore, helping the silicon team meet the company objectives for quality silicon delivery. The Team The verification team sits within the Silicon design team. We are responsible for ensuring that the RTL created by the logical design team and used by the physical design team matches the architecture specification for Graphcore silicon. Responsibilities and Duties V erification activit i es within the verification team Ensuring good communication between sites Verification planning, specification and closure of functional coverage Providing feedback to architects Test generation and failure diagnosis/triage Contributing to shared verification infrastructure Candidate Profile Essential: verification experience in relevant industry Proven leadership and planning skills Be highly motivated, a self starter, and a team player Ability to work across teams and programming languages to find root causes of deep and complex issues Ability to research along with the knowledge to solve complex problems Presents technical and functional knowledge to design experiments/ projects that contribute to overall

Fin , now part of Salesforce, is on a mission to help businesses provide perfect customer experiences. Our AI Agent Fin is the highest-performing AI Customer Agent on the market today, enabling businesses to deliver impeccable, always-on customer support across the customer journey, from service, to sales, to ecommerce. Powered by our own AI models, Fin resolves complex customer issues end-to-end across every channel, with minimal set-up and integration. Fin can also be combined with our natively integrated Intercom help desk, giving modern support teams one single system. Together with Salesforce, the #1 AI CRM, where humans with agents drive customer success, we're building the future of customer experience. Here, ambition meets action. Tech meets trust. And innovation isn't a buzzword, it's a way of life. The world of work as we know it is changing, and we're looking for Trailblazers who are passionate about bettering business and the world through AI. Ready to level up your career at the company leading workforce transformation in the agentic era? You're in the right place. Agentforce is the future of AI, and you are the future of Salesforce. Speed is something we fight for every day at Fin, and we believe Berlin is built for people who share that instinct. We are drawn to Berlin by its rare blend of deep technical talent and rich creative culture – all within a vibrant, globally connected city that’s close to our R&D hubs in Dublin and London. It’s a place where the best of the best technical talent thrive, and where people from around the world are eager to relocate and build ambitious products. Our ambition is to hire 100 people in Berlin over the year ahead across engineering, AI, data science, product, and design. We believe this is the most exciting time to join, be the founding R&D talent in the region and make a lasting impact as we build the world's number one customer agent! What's the opportunity? Principal Engineers at Fin have the oppo

About the role : The Principal Engineer role is a highly strategic position, operating at the same level as an Engineering Director. In the Developer Platform organization, you will be responsible for defining and executing the technical strategy for multiple key systems/technical areas that are of significant impact to the company's Software Development Lifecycle (SDLC), developer experience, and core engineering productivity. The scope and impact of your work will span the interactions among multiple complex systems and engineering organizations, focusing on the end-to-end flow of software delivery, scaling Developer Platforms & Infrastructure, and leveraging AI to revolutionize productivity. You will sit at the center of driving these critical improvements, ensuring the platform scales to meet the company's growth. Your primary focus will be problem seeking. This involves not only defining plans for ambiguous problems (e.g., "How do we scale our platform 10x while reducing costs?") but also identifying problems crucial for the future of engineering productivity and proposing plans for their resolution, such as the strategic integration of AI/ML into core developer workflows. What you’ll do Your responsibilities will encompass technical leadership, strategic delivery and people growth with a focus on cross-functional impact across the Developer Platform and the wider Engineering organization: Platform Strategy and AI-Powered Productivity Define the long-term technical vision (3+ years) for the Developer Platform, including core infrastructure, CI/CD pipelines, and observability systems, ensuring they are cohesive and sustainable. Pioneer the integration of AI/ML not just for engineering tasks but to drive overall company productivity, transforming internal processes and tools. Identify and translate a future business opportunity or engineering productivity gap into a solvable, multi-quarter technical problem with a clear roadmap. Drive significant improv

Fin is the AI Customer Agent company on a mission to help businesses provide perfect customer experiences. Our AI Agent Fin is the highest-performing AI Customer Agent on the market today, enabling businesses to deliver impeccable, always-on customer support across the customer journey – from service, to sales, to ecommerce. Powered by our own AI models, Fin resolves complex customer issues end-to-end across every channel, with minimal set-up and integration. Fin can also be combined with our natively integrated Intercom help desk for one single system that is designed to meet the needs of modern day support teams. Founded in 2011, Fin became one of the fastest growing companies and remains one of the largest private software companies in the world with nearly 30,000 global businesses using our products to transform their customer support. Driven by our core values, we push boundaries, build with speed and intensity, and relentlessly deliver incredible value to our customers. What's the opportunity? Principal Engineers at Intercom have the opportunity to lead the definition and execution of key strategic initiatives. You will work autonomously and be accountable for strategic execution in part of the engineering organization. You will build both back-end and front-end systems, and work closely with designers, product managers, researchers, and data analysts. You will coach and mentor other engineers and partner closely with the Group Engineering Managers on technical strategy and leadership. Learn more about our engineering culture at intercom.engineering What will I be doing? As an experienced engineer you will: Have a mastery of domain knowledge and work as a leader within the R&D org to drive key strategic projects. Provide assessments of project progress, risks and challenges to engineering leadership to help guide resource allocation and prioritisation. Contribute to our technical architecture as we grow. We scale to service requests from all ou

Principal Embedded SW/FW Engineer (Bringup) - Bengaluru, multiple vacancies Job Summary We have an exciting opportunity to be part of a collaborative, cross-functional development team validating cutting-edge, high-performance AI chips and platforms. You will play a key role in supporting new product introductions and post-silicon validation. Working within the Post-Silicon Validation team, you will be involved with bringing first silicon to life, functionally validating it and working closely with many other teams to help it become a fully characterised and working product, reporting project status/progress to program management on a regular basis. You will have the opportunity to provide technical guidance to other engineering team members. In this role, you can leverage our experience and industry knowledge to architect and drive implementation of continuous improvements to test infrastructure and processes. The Team The Post-Silicon Bringup team sits within the Architecture and Validation team, we are responsible for bringup and validation of new silicon when it returns from manufacture, enabling and supporting the production SW and FW teams to bring up their software and supporting the Silicon Characterisation team. Responsibilities and Duties Plan, design, develop and debug silicon validation tests in bare metal C/C++ on FPGA/Emulator prior to first silicon Deploy silicon validation tests on first silicon and debugging them Develop automated test framework and regression test suites in Python to optimize validation efficiency Collaborate closely with engineers from many other disciplines on a variety of topics Work with Validation and Production Test engineering peers to implement best practices and continuous improvements to test methodologies Analyse test results, identify and debug failures/defects Contribute to shared test and validation infrastructure Provide feedback to architects Candidate Profile Essential:

Every day, tens of millions of people come to Roblox to explore, create, play, learn, and connect with friends in 3D immersive digital experiences– all created by our global community of developers and creators. At Roblox, we’re building the tools and platform that empower our community to bring any experience that they can imagine to life. Our vision is to reimagine the way people come together, from anywhere in the world, and on any device. We’re on a mission to connect a billion people with optimism and civility, and looking for amazing talent to help us get there. A career at Roblox means you’ll be working to shape the future of human interaction, solving unique technical challenges at scale, and helping to create safer, more civil shared experiences for everyone. With Roblox Ads & Discovery business growing at a rapid rate, we are building large scale ads machine learning infrastructure to deliver more value to our users and our advertisers. As a Machine Learning Infrastructure Engineer, you’ll build scalable, reliable, and high-performance infrastructure that powers ML systems across our organization. You’ll operate at the scales of hundreds of billions of engagements, and redefine how we deliver performance ads to hundreds of millions of users. You will: You will co-design models and systems, working at the intersection of model architecture and ML infrastructure, partnering closely with core modelers, data and AI infrastructure engineers, and product teams to push the boundaries of large-scale training and serving. Your work will span recommendation, search, and agentic applications, including large transformer architectures, LLMs, generative rankers, and efficient offline and online content-understanding systems. You will investigate model, data, and systems tradeoffs end to end—from data pipelines and distributed training to low-latency inference and production serving. This includes designing efficient KV-cache strategies, applying p

Elastic, the Search AI Company, enables everyone to find the answers they need in real time, using all their data, at scale — unleashing the potential of businesses and people. The Elastic Search AI Platform, used by more than 50% of the Fortune 500, brings together the precision of search and the intelligence of AI to enable everyone to accelerate the results that matter. By taking advantage of all structured and unstructured data — securing and protecting private information more effectively — Elastic’s complete, cloud-based solutions for search, security, and observability help organizations deliver on the promise of AI. What is The Role: We're looking for a Principal Software Engineer to join the Elasticsearch - Search Infra team. This globally-distributed team of experienced engineers focuses on delivering a robust and feature-rich search experience, including contributing to improving the search experience in Lucene. This is a principle software engineering role that entails using your vast knowledge in this space in order to define, direct, and build the next generation of Elasticsearch capabilities. This role provides technical vision and direction for Elasticsearch’s core search infrastructure, including indexing, retrieval, and relevance, and requires deep expertise in search internals and cross-team collaboration. Our company is distributed by intention. We hire the best engineers we can find wherever they are, whoever they are. We collaborate across continents every day over email, GitHub, Zoom, and Slack. At our best, we write fast, scalable and intuitive software. We believe that the best way to do that is to empower individual engineers, code review every change, decide big things by consensus, and strive for incremental improvements. What You Will Be Doing: As a full-time Elasticsearch contributor, you will define, lead, and contribute to the evolution of core search and indexing capabilities. You’ll research advances in search infrastructure,

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 . Reddit's Ads Data Science team is seeking a highly motivated Principal Data Scientist to drive the strategic application of advanced quantitative methods across our advertising platform to advance the intelligence powering the advertiser experience on Reddit. In this pivotal leadership role, you will be responsible for defining and implementing the next generation of foundational data science solutions, leveraging expertise in statistics, econometrics, machine learning and/or other quantitative methods to optimize Reddit's Ads marketplace. You will partner closely with Analytics Engineering to ensure our underlying data systems are continuously upleveled to support advanced analysis and modeling at scale. You will be a strategic partner, collaborating closely with Product, Engineering, and Business leaders to establish the long-term vision for measurement, prediction, and optimization. As a thought leader, you will champion scientific rigor, causal inference, and economic modeling, while providing deep mentorship to the broader team. If you are passionate about applying foundational quantitative science to solve complex, high-impact business problems, join us in shaping the future of Reddit ads. What you’ll do Define the future of Ads Data Science: Own the design and long-term evolution of our core Ads Data Science solutions and infrastructure, building for the next several years of continued scale, revenue growth, and relevance. Strategic leadership & scientific roadmap: Identify fundamental gaps and op

About Pinterest: Millions of people around the world come to our platform to find creative ideas, dream about new possibilities and plan for memories that will last a lifetime. At Pinterest, we’re on a mission to bring everyone the inspiration to create a life they love, and that starts with the people behind the product. Discover a career where you ignite innovation for millions, transform passion into growth opportunities, celebrate each other’s unique experiences and embrace the flexibility to do your best work. Creating a career you love? It’s Possible. At Pinterest, AI isn't just a feature, it's a powerful partner that augments our creativity and amplifies our impact, and we’re looking for candidates who are excited to be a part of that. To get a complete picture of your experience and abilities, we’ll explore your foundational skills and how you collaborate with AI. Through our interview process, what matters most is that you can always explain your approach, showing us not just what you know, but how you think. You can read more about our AI interview philosophy and how we use AI in our recruiting process here . Within the Ads Delivery team, we try to connect the dots between the aspirations of pinners and the products offered by our partners. In this role, you will be responsible for developing and executing a vision for the evolution of the Pinterest marketplace. You will design and implement systems that improve the ads delivery funnel, experiments that shape the utility function, auction mechanism design, ad allocation and for deriving new insights through analysis of the marketplace dynamics. In short, this is a unique position, where you’ll get the freedom to work to bring together pinners and partners in this unique marketplace. What you’ll do: Build and improve backend systems and statistical models that underlay the marketplace to maximize value for Pinners, Partners and Pinterest. Define and implement experiments to understand long term Market

Zoox is on an ambitious journey to develop a full-stack autonomous mobility solution for cities and safely deploy such a robotaxi solution. The System Design and Mission Assurance (SDMA) team plays a foundational role in the company's success, responsible for constructing the safety case and fail-operational design for our autonomous driving robots before public road deployment. We are looking for a Principal Systems Engineer to lead the design and assurance efforts for overall safety and fail-operational initiatives. In this highly visible position, you will lead technical programs with cross-functional teams, defining, developing, and continuously refining the methodology for measuring and optimizing safety and fail-operational metrics. You will serve as a trusted technical partner for the Vice President of System Design and Mission Assurance, at times representing the Vice President in leadership meetings. You will be part of an organization with strong leadership and a transparent, respectful culture that enables you to reach your full potential. This highly visible position offers opportunities for career growth through demonstrated achievement. In this role, you will: Define and refine the strategy and architecture for the Systems Engineering efforts that guide Zoox’s approach to safety and fail-operational initiatives Lead and oversee the definition, development, and evolution of safety and fail-operational metrics that measure the robotaxi’s ability to safely complete customers’ journeys Review and approve mission assurance clearance documents Communicate complex metric concepts, data analyses, and actionable insights to diverse stakeholders and executives Coach and mentor SDMA systems engineers, fostering their career growth and strengthening SDMA’s technical bench Qualifications M.S. or higher degree in an Engineering, Computer Science, or a related field At least 10 years of relevant professi

Tenstorrent is leading the industry on cutting-edge AI technology, revolutionizing performance expectations, ease of use, and cost efficiency. With AI redefining the computing paradigm, solutions must evolve to unify innovations in software models, compilers, platforms, networking, and semiconductors. Our diverse team of technologists have developed a high performance RISC-V CPU from scratch, and share a passion for AI and a deep desire to build the best AI platform possible. We value collaboration, curiosity, and a commitment to solving hard problems. We are growing our team and looking for contributors of all seniorities. Our Tensix Team is building the future of AI compute with a ground-up architecture centered on scalable RISC-V processors. As we push performance boundaries, we’re reimagining the frontend of our RISC-V cores to deliver major gains in programmability, efficiency, and developer experience. This is a rare opportunity to shape the CPU architecture at the heart of our AI platform and lead one of the most strategic technical efforts at Tenstorrent. This role is hybrid, based out of Toronto, ON, Austin, TX or Santa Clara, CA. We welcome candidates at various experience levels. During the interview process, candidates will be assessed for the appropriate level, and offers will align with that level, which may differ from the one in this posting. Who You Are Experienced Microarchitect: 10+ years of deep expertise in CPU performance modeling and microarchitecture design. AI Workload Expert: Deeply familiar with the computational and memory bottlenecks of modern AI workloads, particularly Large Language Models (LLMs). Hardware-Software Co-Designer: Driven to architect custom instruction set extensions and validate their performance gains against real-world workloads. Ways to stand-out: Familiarity with open-source RISC-V cores, AI-based agentic workflow experience What We Need Profile & Analyze: Dissect cutting-edge AI workloads to identi

About Formation Bio Formation Bio is a tech and AI driven pharma company differentiated by radically more efficient drug development. Advancements in AI and drug discovery are creating more candidate drugs than the industry can progress because of the high cost and time of clinical trials. Recognizing that this development bottleneck may ultimately limit the number of new medicines that can reach patients, Formation Bio, founded in 2016 as TrialSpark Inc., has built technology platforms, processes, and capabilities to accelerate all aspects of drug development and clinical trials. Formation Bio partners, acquires, or in-licenses drugs from pharma companies, research organizations, and biotechs to develop programs past clinical proof of concept and beyond, ultimately helping to bring new medicines to patients. The company is backed by investors across pharma and tech, including a16z, Sequoia, Sanofi, Thrive Capital, John Doerr, Spark Capital, SV Angel Growth, and others. You can read more at the following links: Our Vision for AI in Pharma Our Current Drug Portfolio Our Technology & Platform At Formation Bio, our values are the driving force behind our mission to revolutionize the pharma industry. Every team and individual at the company shares these same values, and every team and individual plays a key part in our mission to bring new treatments to patients faster and more efficiently. About the Position As a Principal Data Scientist - Medical Imaging at Formation Bio, you will lead our efforts to integrate advanced imaging analytics and AI into our drug development pipeline. In this role, you'll pioneer the application of computer vision and deep learning to medical imaging data (MRI, X-ray, CT, PET) to accelerate clinical trials and improve patient outcomes. You'll develop state-of-the-art models for automated image analysis, disease progression monitoring, and treatment response assessment. Working closely with clinical teams, radiologists, and