Scientist Jobs

Who are we? Cohere is the leading security-first enterprise AI company. We build cutting-edge foundation AI models and end-to-end products that are designed to solve real-world business problems. We’re training and deploying frontier models for enterprises who are building AI systems. We believe that our work is instrumental to the widespread adoption of AI and we are looking for folks that want to be part of that. We obsess over what we build. Each one of us is responsible for contributing to increasing the capabilities of our models and the value they drive for our customers. Cohere is a team of researchers, engineers, designers, and more, who are all passionate about their craft. We are a global technology company headquartered in Toronto with key offices in London, New York City, San Francisco, Montreal, Paris, Berlin and Seoul. Join us! Why This Role Is Different This is not a typical “Applied Scientist” or “ML Engineer” role. As a Member of Technical Staff, Applied ML, you will: Work directly with enterprise customers on problems that push LLMs to their limits. You’ll rapidly understand customer domains, design custom LLM solutions, and deliver production-ready models that solve high-value, real-world problems. Train and customize frontier models — not just use APIs. You’ll leverage Cohere’s full stack: CPT, post-training, retrieval + agent integrations, model evaluations, and SOTA modeling techniques. Influence the capabilities of Cohere’s foundation models. Techniques, datasets, evaluations, and insights you develop for customers will directly shape the next generation of Cohere’s frontier models. Operate with an early-startup level of ownership inside a frontier-model company. This role combines the breadth of an early-stage CTO with the infrastructure and scale of a deep-learning lab. Wear multiple hats, set a high technical bar, and define what Applied ML at Cohere becomes. Few roles in the industry combine application, research, customer-facing engineeri

Who are we? Cohere is the leading security-first enterprise AI company. We build cutting-edge foundation AI models and end-to-end products that are designed to solve real-world business problems. We’re training and deploying frontier models for enterprises who are building AI systems. We believe that our work is instrumental to the widespread adoption of AI and we are looking for folks that want to be part of that. We obsess over what we build. Each one of us is responsible for contributing to increasing the capabilities of our models and the value they drive for our customers. Cohere is a team of researchers, engineers, designers, and more, who are all passionate about their craft. We are a global technology company headquartered in Toronto with key offices in London, New York City, San Francisco, Montreal, Paris, Berlin and Seoul. Join us! Role Overview: As a Senior Research Engineer in our Safety team, you will play a key role in helping develop safer, more secure, and more reliable models. Your primary focus will be on building tools to enable easy data synthesis, analysis, and management, for complex combinations of real and synthetic data that is used in both model training and evaluation. You will own the cohesive vision of these tooling repositories. You will work closely with a team of research scientists and engineers to create tooling that enables tighter experimentation cycles, better data coverage of the real world, and more scientific rigour. You will have a lot of autonomy and need to be opinionated about what areas of the codebase need elegance and standards, and where that would be overengineering. You will be given high level experimental problems that need to be solved with efficient pipelines, and design and implement the solutions. Your data analysis will collaboratively feed into modelling decisions and experimentation. This role combines expertise in software engineering, statistics, and data science. If any of these topics sound interesting t

About Ramp Ramp is building the smart infrastructure for finance teams, embedded in the transaction flow of every dollar a business spends. We automate how over $200B in annualized spend flows in and out of 70,000+ companies: authorizing payments, flagging risk, categorizing spend, and closing books. The problems are high-stakes, data-dense, and unforgiving. We hire people with high agency and high urgency. We look for slope over intercept. We care less about where you trained and more about what you’ve built. At Ramp, everyone is a builder who owns problems end to end and makes consequential decisions that shape the outcome. The median Ramp customer saves 5% and grows revenue 16% in their first year – far in excess of businesses operating without Ramp. We believe every ambitious company deserves the same. If you want to build systems that directly shape how companies move and manage billions, Ramp is the place to do it. About the Role The Data Platform builds infrastructure and tools that enable Ramp to realize business value from data. We partner closely with stakeholder teams to build this infrastructure and the applications on top of it. This role is particularly focused on building platforms that support the data science development lifecycle. You’ll partner with applied scientists, AI engineers, Risk engineers, and other ML developers on building infrastructure and tools that enable and accelerate the development of machine learning models. What You’ll Do Build and integrate the components of Ramp's Analytics Platform and Machine Learning Platform. Build tools that improve the agility and data experience of Ramp's Applied Scientists, AI Engineers, and Risk Engineers. Collaborate with stakeholder teams on building and productionizing machine learning applications. Build reliable, scalable, maintainable, and cost-efficient systems across the stack. What You Need Experience with workflow orchestrators like Airflow, Dagster, or Prefect. Experience building infrast

Replit is the agentic software creation platform that enables anyone to build applications using natural language. With millions of users worldwide, Replit is democratizing software development by removing traditional barriers to application creation. About the Role We are seeking a highly technical, data-driven Growth Engineer to help scale our product and expand key user metrics across acquisition, activation, retention, and monetization. Growth Engineering sits at the intersection of engineering, product, and marketing—leveraging code, experimentation, and analytics to uncover opportunities and deliver measurable impact. What You’ll Do Drive Experimentation & Optimization Design, implement, and analyze rapid A/B and multivariate tests to validate hypotheses and improve key KPIs. Identify bottlenecks in user funnels and develop technical solutions to improve conversion rates throughout the user lifecycle. Build and Scale Growth Features Build growth-oriented product features such as onboarding flows, referral systems, and automated engagement loops. Develop scalable code and infrastructure that supports growth initiatives and experimentation frameworks. Leverage Data & Metrics Collaborate with data teams to instrument tracking, build dashboards, and derive insights from user behavior data. Use SQL and analytics tools to deeply analyze cohorts, engagement metrics, and experiment outcomes. Cross-Functional Collaboration Partner closely with product managers, designers, marketers, and data scientists to align on growth goals and execution plans. Translate business goals into technical requirements and implement pragmatic solutions that drive sustainable growth. Continuous Innovation Stay updated on industry trends and growth-oriented technologies and propose new tactics to accelerate growth. Automate repetitive tasks and build internal tools to empower faster experimentation and execution. Required Qualifications Bachelor’s degree in Computer Science, Enginee

A World-Changing Company Palantir builds the world’s leading software for data-driven decisions and operations. By bringing the right data to the people who need it, our platforms empower our partners to develop lifesaving drugs, forecast supply chain disruptions, locate missing children, and more. The Role Backend Software Engineers at Palantir build software at scale to transform how organizations use data. Our Software Engineers are involved throughout the product lifecycle, from idea generation, design, prototyping, and production delivery. You will collaborate closely with technical and non-technical teammates to understand our customers' problems and build products that solve them. We encourage movement across teams to share context, skills, and experience, so you'll learn about many different technologies and aspects of each product. Engineers work autonomously and make decisions independently, within a community that will support and challenge you as you grow and develop, becoming a strong technical contributor and engineering leader. Our Product Development organization is made up of small teams of Software Engineers. Each team focuses on a specific aspect of a product. Our infrastructure teams are responsible for the lowest layers of our software stack, often focused on database technologies, distributed systems, large scale data systems, security, and application infrastructure. As a Software Engineer on infrastructure, you'll contribute high-quality code to underpin Palantir Foundry and Gotham with performant, secure, and scalable building blocks, enabling products deployed to the most important institutions in the public and private sector. You'll build the foundational capabilities that power our products used by research scientists, aerospace engineers, intelligence analysts, and economic forecasters, in countries around the world. We’re hiring engineers who are passionate about solving real-world problems and empowering both developers and

A World-Changing Company Palantir builds the world’s leading software for data-driven decisions and operations. By bringing the right data to the people who need it, our platforms empower our partners to develop lifesaving drugs, forecast supply chain disruptions, locate missing children, and more. The Role Software Engineers at Palantir drive large-scale transformation through data, AI and world-leading infrastructure that supports mission-critical workloads. As a Software Engineer Intern, you’ll have an opportunity to grow more quickly than you ever envisioned as you contribute high-quality code directly to: • Rubix and Apollo, platforms deployed at the most important institutions across the public and private sectors. • Shaping Mission Manager, our new internal-infrastructure business line, used by advanced civil and defense agencies worldwide to power their infrastructure in highly sensitive environments • Building the core capabilities used by advanced civil and defense agencies worldwide to power their infrastructure • Providing the substrate on which Palantir deploys its other platforms, Foundry and Gotham, which power workflows for research scientists, aerospace engineers, intelligence analysts and economic forecasters. You’ll join our Production Infrastructure organization, made up of small teams of engineers working on: • Environment Platform: a Kubernetes-based PaaS spanning hundreds of production clusters • Apollo: secure, fleet-wide deployment and change-management for complex microservice suites • Signals: our full suite of observability and alerting tools Core Responsibilities As a Software Engineer Intern at Palantir, you’ll own every phase of the product lifecycle—from generating ideas and designing prototypes to executing features and shipping releases—while being paired with a dedicated mentor who champions your growth. You’ll work hand-in-hand with both technical and non-technical colleagues to uncover real customer problems and

A World-Changing Company Palantir builds the world’s leading software for data-driven decisions and operations. By bringing the right data to the people who need it, our platforms empower our partners to develop lifesaving drugs, forecast supply chain disruptions, locate missing children, and more. The Role Software Engineers at Palantir drive large-scale transformation through data, AI and world-leading infrastructure that supports mission-critical workloads. In this role, you’ll have an opportunity to grow more quickly than you ever envisioned as you contribute high-quality code directly to: • Rubix and Apollo, platforms deployed at the most important institutions across the public and private sectors • Shaping Mission Manager, our new internal-infrastructure business line, used by advanced civil and defense agencies worldwide to power their infrastructure in highly sensitive environments • Building the core capabilities used by advanced civil and defense agencies worldwide to power their infrastructure • Providing the substrate on which Palantir deploys its other platforms, Foundry and Gotham, which power workflows for research scientists, aerospace engineers, intelligence analysts and economic forecasters You’ll join our Production Infrastructure organization, made up of small teams of engineers working on: • Environment Platform: a Kubernetes-based PaaS spanning hundreds of production clusters • Apollo: secure, fleet-wide deployment and change-management for complex microservice suites • Signals: our full suite of observability and alerting tools Core Responsibilities As a Software Engineer at Palantir, you’ll own every phase of the product lifecycle—from generating ideas and designing prototypes to executing features and shipping releases—while being paired with a dedicated mentor who champions your growth. You’ll work hand-in-hand with both technical and non-technical colleagues to uncover real customer problems and deliver solutions that ad

A World-Changing Company Palantir builds the world’s leading software for data-driven decisions and operations. By bringing the right data to the people who need it, our platforms empower our partners to develop lifesaving drugs, forecast supply chain disruptions, locate missing children, and more. The Role Software Engineers at Palantir drive large-scale transformation through data, AI and world-leading infrastructure that supports mission-critical workloads. As a Software Engineer Intern, you’ll have an opportunity to grow more quickly than you ever envisioned as you contribute high-quality code directly to: • Rubix and Apollo, platforms deployed at the most important institutions across the public and private sectors. • Shaping Mission Manager, our new internal-infrastructure business line, used by advanced civil and defense agencies worldwide to power their infrastructure in highly sensitive environments • Building the core capabilities used by advanced civil and defense agencies worldwide to power their infrastructure • Providing the substrate on which Palantir deploys its other platforms, Foundry and Gotham, which power workflows for research scientists, aerospace engineers, intelligence analysts and economic forecasters. You’ll join our Production Infrastructure organization, made up of small teams of engineers working on: • Environment Platform: a Kubernetes-based PaaS spanning hundreds of production clusters • Apollo: secure, fleet-wide deployment and change-management for complex microservice suites • Signals: our full suite of observability and alerting tools Core Responsibilities As a Software Engineer Intern at Palantir, you’ll own every phase of the product lifecycle—from generating ideas and designing prototypes to executing features and shipping releases—while being paired with a dedicated mentor who champions your growth. You’ll work hand-in-hand with both technical and non-technical colleagues to uncover real customer problems and

A World-Changing Company Palantir builds the world’s leading software for data-driven decisions and operations. By bringing the right data to the people who need it, our platforms empower our partners to develop lifesaving drugs, forecast supply chain disruptions, locate missing children, and more. The Role Are you passionate about engineering quality, efficiency, and increasing the impact of engineers around you? Software Engineers at Palantir build software at scale to transform how organizations globally use data. As a Software Engineer on Developer Productivity, you’ll identify, develop, and drive investments to improve the velocity and quality of our engineering, as well as bolster the happiness and productivity of other developers. The role spans a spectrum of areas, such as build and software supply-chain systems, platform runtime environments, telemetry relating concurrency, memory/performance optimizations, and monitoring/alerting. Your primary users will be other developers at Palantir. They will be empowered with the software you develop to build capabilities used by research scientists, aerospace engineers, intelligence analysts, and economic forecasters in countries around the world. There will be opportunities to contribute to open source software, including projects maintained by others that we leverage. You’ll work autonomously within a community that will support and challenge you as you grow to become a strong technical contributor and engineering leader. The team is hiring for Frontend and Backend engineers. Core Responsibilities We're hiring engineers who are passionate about solving real-world problems and empowering developers to do their work optimally. If you’re motivated to develop reliable, performant, scalable systems and tools, here are some examples of the types of work you’d get to do: • Define and build standard practices for how services are operated and observed throughout their deployment • Build libraries and tool

A World-Changing Company Palantir builds the world’s leading software for data-driven decisions and operations. By bringing the right data to the people who need it, our platforms empower our partners to develop lifesaving drugs, forecast supply chain disruptions, locate missing children, and more. The Role Software Engineers at Palantir drive large-scale transformation through data, AI and world-leading infrastructure that supports mission-critical workloads. In this role, you’ll have an opportunity to grow more quickly than you ever envisioned as you contribute high-quality code directly to: • Rubix and Apollo, platforms deployed at the most important institutions across the public and private sectors • Shaping Mission Manager, our new internal-infrastructure business line, used by advanced civil and defense agencies worldwide to power their infrastructure in highly sensitive environments • Building the core capabilities used by advanced civil and defense agencies worldwide to power their infrastructure • Providing the substrate on which Palantir deploys its other platforms, Foundry and Gotham, which power workflows for research scientists, aerospace engineers, intelligence analysts and economic forecasters You’ll join our Production Infrastructure organization, made up of small teams of engineers working on: • Environment Platform: a Kubernetes-based PaaS spanning hundreds of production clusters • Apollo: secure, fleet-wide deployment and change-management for complex microservice suites • Signals: our full suite of observability and alerting tools Core Responsibilities As a Software Engineer at Palantir, you’ll own every phase of the product lifecycle—from generating ideas and designing prototypes to executing features and shipping releases—while being paired with a dedicated mentor who champions your growth. You’ll work hand-in-hand with both technical and non-technical colleagues to uncover real customer problems and deliver solutions that ad

A World-Changing Company Palantir builds the world’s leading software for data-driven decisions and operations. By bringing the right data to the people who need it, our platforms empower our partners to develop lifesaving drugs, forecast supply chain disruptions, locate missing children, and more. The Role Software Engineers at Palantir build software at scale to transform how organizations use data. Our Software Engineers are involved throughout the product lifecycle, from idea generation, design, prototyping, and production delivery. You will collaborate closely with technical and non-technical teammates to understand our customers' problems and build products that solve them. We encourage movement across teams to share context, skills, and experience, so you'll learn about many different technologies and aspects of each product. Engineers work autonomously and make decisions independently, within a community that will support and challenge you as you grow and develop, becoming a strong technical contributor and engineering leader. Our Product Development organization is made up of small teams of Software Engineers. Each team focuses on a specific aspect of a product. Our infrastructure teams are responsible for the lowest layers of our software stack, often focused on database technologies, distributed systems, large scale data systems, security, and application infrastructure. As a Software Engineer on infrastructure working on our Foundry platform, you'll contribute high-quality code to underpin Palantir Foundry and Gotham with performant, secure, and scalable building blocks, enabling products deployed to the most important institutions in the public and private sector. You'll build the foundational capabilities that power our products used by research scientists, aerospace engineers, intelligence analysts, and economic forecasters, in countries around the world. We’re hiring engineers who are passionate about solving real-world problems and empower

A World-Changing Company Palantir builds the world’s leading software for data-driven decisions and operations. By bringing the right data to the people who need it, our platforms empower our partners to develop lifesaving drugs, forecast supply chain disruptions, locate missing children, and more. The Role Software Engineers at Palantir drive large-scale transformation through data, AI and world-leading infrastructure that supports mission-critical workloads. In this role, you’ll have an opportunity to grow more quickly than you ever envisioned as you contribute high-quality code directly to: • Rubix and Apollo, platforms deployed at the most important institutions across the public and private sectors • Shaping Mission Manager, our new internal-infrastructure business line, used by advanced civil and defense agencies worldwide to power their infrastructure in highly sensitive environments • Building the core capabilities used by advanced civil and defense agencies worldwide to power their infrastructure • Providing the substrate on which Palantir deploys its other platforms, Foundry and Gotham, which power workflows for research scientists, aerospace engineers, intelligence analysts and economic forecasters You’ll join our Production Infrastructure organization, made up of small teams of engineers working on: • Environment Platform: a Kubernetes-based PaaS spanning hundreds of production clusters • Apollo: secure, fleet-wide deployment and change-management for complex microservice suites • Signals: our full suite of observability and alerting tools Core Responsibilities As a Software Engineer at Palantir, you’ll own every phase of the product lifecycle—from generating ideas and designing prototypes to executing features and shipping releases—while being paired with a dedicated mentor who champions your growth. You’ll work hand-in-hand with both technical and non-technical colleagues to uncover real customer problems and deliver solutions that ad

A World-Changing Company Palantir builds the world’s leading software for data-driven decisions and operations. By bringing the right data to the people who need it, our platforms empower our partners to develop lifesaving drugs, forecast supply chain disruptions, locate missing children, and more. The Role Software Engineers at Palantir drive large-scale transformation through data, AI and world-leading infrastructure that supports mission-critical workloads. As a Software Engineer Intern, you’ll have an opportunity to grow more quickly than you ever envisioned as you contribute high-quality code directly to: • Rubix and Apollo, platforms deployed at the most important institutions across the public and private sectors. • Shaping Mission Manager, our new internal-infrastructure business line, used by advanced civil and defense agencies worldwide to power their infrastructure in highly sensitive environments • Building the core capabilities used by advanced civil and defense agencies worldwide to power their infrastructure • Providing the substrate on which Palantir deploys its other platforms, Foundry and Gotham, which power workflows for research scientists, aerospace engineers, intelligence analysts and economic forecasters. You’ll join our Production Infrastructure organization, made up of small teams of engineers working on: • Environment Platform: a Kubernetes-based PaaS spanning hundreds of production clusters • Apollo: secure, fleet-wide deployment and change-management for complex microservice suites • Signals: our full suite of observability and alerting tools Core Responsibilities As a Software Engineer Intern at Palantir, you’ll own every phase of the product lifecycle—from generating ideas and designing prototypes to executing features and shipping releases—while being paired with a dedicated mentor who champions your growth. You’ll work hand-in-hand with both technical and non-technical colleagues to uncover real customer problems and

A World-Changing Company Palantir builds the world’s leading software for data-driven decisions and operations. By bringing the right data to the people who need it, our platforms empower our partners to develop lifesaving drugs, forecast supply chain disruptions, locate missing children, and more. The Role Backend Software Engineers at Palantir build software at scale to transform how organizations use data. Our Software Engineers are involved throughout the product lifecycle, from idea generation, design, prototyping, and production delivery. You will collaborate closely with technical and non-technical teammates to understand our customers' problems and build products that solve them. We encourage movement across teams to share context, skills, and experience, so you'll learn about many different technologies and aspects of each product. Engineers work autonomously and make decisions independently, within a community that will support and challenge you as you grow and develop, becoming a strong technical contributor and engineering leader. Our Product Development organization is made up of small teams of Software Engineers. Each team focuses on a specific aspect of a product. Our infrastructure teams are responsible for the lowest layers of our software stack, often focused on database technologies, distributed systems, large scale data systems, security, and application infrastructure. As a Software Engineer on infrastructure, you'll contribute high-quality code to underpin Palantir Foundry and Gotham with performant, secure, and scalable building blocks, enabling products deployed to the most important institutions in the public and private sector. You'll build the foundational capabilities that power our products used by research scientists, aerospace engineers, intelligence analysts, and economic forecasters, in countries around the world. We’re hiring engineers who are passionate about solving real-world problems and empowering both developers and

A World-Changing Company Palantir builds the world’s leading software for data-driven decisions and operations. By bringing the right data to the people who need it, our platforms empower our partners to develop lifesaving drugs, forecast supply chain disruptions, locate missing children, and more. The Role Software Engineers at Palantir build software at scale to transform how organizations use data. Our Software Engineers are involved throughout the product lifecycle, from idea generation, design, prototyping, and production delivery. You will collaborate closely with technical and non-technical teammates to understand our customers' problems and build products that solve them. We encourage movement across teams to share context, skills, and experience, so you'll learn about many different technologies and aspects of each product. Engineers work autonomously and make decisions independently, within a community that will support and challenge you as you grow and develop, becoming a strong technical contributor and engineering leader. Our Product Development organization is made up of small teams of Software Engineers. Each team focuses on a specific aspect of a product. Our infrastructure teams are responsible for the lowest layers of our software stack, often focused on database technologies, distributed systems, large scale data systems, security, and application infrastructure. As a Software Engineer on infrastructure working on our Foundry platform, you'll contribute high-quality code to underpin Palantir Foundry and Gotham with performant, secure, and scalable building blocks, enabling products deployed to the most important institutions in the public and private sector. You'll build the foundational capabilities that power our products used by research scientists, aerospace engineers, intelligence analysts, and economic forecasters, in countries around the world. We’re hiring engineers who are passionate about solving real-world problems and empowerin