AI Engineer Jobs at Startups

Perplexity AI

The AI Acceleration team is dedicated to making Perplexity the premier platform for building and deploying AI agents. We develop the essential infrastructure that engineers and agents rely on, while also pioneering novel methods for agents to write, test, review, and ship code. Our work empowers teams to transition from concept to production more rapidly, without sacrificing quality or reliability. We oversee the entire development lifecycle at Perplexity, from the initial coding environment to the production deployment systems. This encompasses local and cloud coding environments, build and test infrastructure, code review processes, and release management. Furthermore, we are constructing autonomous software development systems where agents handle increasingly complex engineering tasks, supported by explicit evaluation, verification, and safety protocols. We are responsible for both the underlying infrastructure and the workflows that ensure these systems are effective.

$250k - $405k

Vanta

Vanta is seeking a Staff Software Engineer to join their AI and Data Risk team. This role will focus on identifying and leading strategic technical initiatives, developing privacy, AI, and risk management features, and setting technical direction for the engineering team. The engineer will partner with product management and design to accelerate product development and ensure a consistent customer experience. This is a remote-first position with opportunities to shape engineering practices and contribute to a rapidly scaling company.

Salary not listed

Vannevar is seeking an experienced full-stack engineer to advance the design and implementation of our Decision Advantage product. This critical platform enables defense and intelligence operators to gain comprehensive situational awareness of the information environment, helping them understand and counter adversary influence operations and information warfare tactics. You will build the applications our warfighters and intelligence analysts use daily for mission-critical work, developing advanced products and features for information distillation, analysis, and visualization that enable rapid assessment of the information environment. Working alongside designers, engineers, subject matter experts, and operational users, you will transform complex intelligence requirements into intuitive, mission-ready workflows that directly support national security objectives. In this role, you will work in a small cross-functional team focused on delivering Decision Advantage capabilities to defense customers engaged in strategic competition with near-peer adversaries. You will work on all aspects of the product - everything from data (extraction, ingestion), backend (storage, indexing, APIs), frontend, AI analysis (agents), and more. The platform has a strong foundation to build upon and there is a ton of opportunity to make an impact as we take it to the next level.

Salary not listed

Snorkel AI

Snorkel AI is seeking a Staff Applied AI Engineer to join their frontier AI data lab. In this role, you will research and implement state-of-the-art Generative AI and machine learning techniques to deliver impactful solutions for customers. You will work directly with clients to understand their needs, design AI solutions, and contribute to Snorkel's tooling by translating real-world challenges into reusable recipes and workflows. This position is ideal for individuals who enjoy solving complex problems, bridging AI technology with business value, collaborating with customers, staying current with AI research, and standardizing solutions into internal tooling.

$230k - $360k

Dscout

Dscout is seeking a Senior Forward Deployed Engineer to join their AI Training & Evals team. This new unit focuses on generating human data and evaluations to ensure AI models perform effectively for real users in real-world contexts. You will partner with Strategic Project Leads to translate customer needs into technical plans, build necessary components, and ensure the quality and delivery of data for AI training and evaluation. This role offers the opportunity to work on cutting-edge AI problems, build on an existing mature platform, and directly influence product development by identifying customer needs and contributing to the core platform.

$250k - $400k

The Imagine team is redefining AI-driven media experiences for Grok users worldwide. As a Product Safety Engineer on the Imagine team, you will build the critical safety systems and infrastructure that ensure Grok’s multimodal generation capabilities (images, video, audio, and beyond) are powerful, delightful, and responsibly deployed. You’ll design and scale safeguards, detection systems, and evaluation frameworks that prevent harm while preserving creativity and user freedom. Your work will directly shape how millions of users experience generative media — balancing rapid innovation with rigorous safety, trustworthiness, and alignment with SpaceXSI's mission. If you’re a driven engineer passionate about AI safety, content integrity, and building robust systems that protect users without stifling innovation, this is your opportunity to make a lasting impact at the frontier of multimodal AI.

$180k - $440k

Snorkel AI

Snorkel AI is seeking experienced Platform Engineers to build and operate the core infrastructure and services powering their AI data platform. This role involves designing and implementing event-driven data flows, agent infrastructure, and systems for data lineage, governance, and auditing. You will play a key role in a foundational architecture shift towards an event-first platform, making decisions that will impact the company's scalability for years to come. The position offers significant ownership and the opportunity to shape the future of Snorkel's platform.

$220k - $300k

Snorkel AI

Snorkel AI is seeking a leader to manage a portfolio of Coding Fellows who create high-quality technical content for training and evaluating AI systems. This people-first role focuses on the management layer across multiple projects, encompassing expectations, performance, support, development, and administration. While technical depth is necessary to understand and discuss Fellow work, the primary responsibility is people management rather than day-to-day technical leadership.

$175k - $250k

SpaceXSI is building Super Intelligence to help humanity understand the universe, and you will join the multimodal team to push toward superhuman multimodal intelligence. This role involves advancing understanding and generation across modalities—image, video, audio, and text—spanning the full stack from data curation to end-to-end product experiences. You will collaborate cross-functionally to deliver frontier capabilities in multimodal reasoning, world modeling, tool use, agentic behaviors, and interactive human-AI collaboration, contributing to models that can see, hear, reason about, and interact with the world in real time.

$180k - $440k

Snorkel AI

Snorkel AI is seeking a Manager, Forward Deployed Engineering to establish and lead the Forward Deployed Engineering (FDE) function within the Data-as-a-Service (DaaS) organization. This role is responsible for the technical execution of DaaS delivery, managing the systems, workflows, and quality frameworks for large-scale dataset production. As a player-coach, you will define strategy and architecture while remaining hands-on with implementation, working at the intersection of data engineering, ML engineering, and production operations to enhance technical delivery capabilities.

$200k - $320k

Snorkel AI

Snorkel AI is seeking a Senior/Staff Forward Deployed Engineer to join their frontier AI data lab. This engineering delivery role involves translating ambiguous customer needs into production-grade data, evaluation, and ML-assisted workflows. You will own the end-to-end AI data pipeline lifecycle, developing and deploying ML-based workflows and building foundations to enhance human-in-the-loop data generation and review. This position operates at the intersection of data science, data engineering, AI engineering, and operations, partnering with the DaaS Delivery Operations team and cross-functional stakeholders to develop technical specifications, design evaluation workflows, and implement quality standards.

$180k - $320k

Snorkel AI

Snorkel AI is seeking a Forward Deployed Engineer specializing in Synthetic Data Generation to collaborate with leading AI labs and enterprises on critical AI initiatives. In this role, you will spearhead the technical execution of complex customer projects that leverage synthetic data to enhance model training, evaluation, and overall performance. You will be responsible for transforming vague model and data challenges into concrete data strategies, developing robust generation and evaluation pipelines, and utilizing experimentation to continuously improve data quality and downstream model results. Your work will span the entire delivery lifecycle, from initial technical discovery and solution design to implementation, evaluation, and production deployment. Additionally, you will identify common patterns across engagements to develop reusable capabilities, technical standards, and product enhancements.

$180k - $320k

Cohere Health

Cohere Health is transforming prior authorization using AI to improve efficiency, reduce costs, and enhance patient care. This role is on the Clinical Intelligence team, focusing on building impactful healthcare technologies that streamline and optimize the prior authorization process with AI/ML and Advanced Rules Engines. You will contribute to the functional and technical roadmap, support technical design, and drive feature development, testing, and delivery of their cloud platform and web applications. The role involves supporting all parts of the platform, from database to frontend, and performing production support duties. The company is recognized for its innovative AI-native platform and agentic AI-powered solutions, connecting health plans' strategic goals with providers' needs to optimize care speed, cost, and quality.

Salary not listed

SpaceXAI is building AI systems to understand the universe and aid humanity. The team is small, highly motivated, and focused on engineering excellence, operating with a flat structure where all employees are hands-on and contribute directly to the mission. This role requires strong communication skills and the ability to share knowledge concisely. The ideal candidate will have a good understanding of building highly scalable and reliable production infrastructure, with familiarity in compiled languages like Rust, C++, or Go being highly beneficial.

£107k - £262k

Moveworks is seeking a Senior Staff Security Engineer to focus on AI Safeguards. In this role, you will be responsible for maintaining an up-to-date map of ML usage and safeguards across our products, and leading the security design for new ML features. You will actively test the boundaries of our safeguards against various attacks like jailbreaks, prompt injection, and toxicity, translating these findings into evaluation cases that are applied to every model, prompt, and safeguard change. Additionally, you will collaborate with ML engineers to design and build robust mitigations that remain effective even when detection fails, and define and report on key security metrics to demonstrate the efficacy of our safeguards. You will also stay abreast of the latest AI attack research, incorporating new techniques into our testing and mitigation strategies.

Salary not listed

Conveo

Conveo.ai is a rapidly growing Y Combinator-backed company seeking a Senior Product Engineer to join its small, impactful engineering team. This role offers the unique opportunity to shape the company's future and own the full product development lifecycle, from customer problem identification to shipping working software. You will report directly to an engineering lead and collaborate closely with the CTO. Conveo is building an AI research platform that enables fast, affordable, and high-quality consumer and B2B research, used by global brands like Unilever and Google to help companies better understand their customers.

$180k - $225k

Figure is an AI robotics company developing autonomous general-purpose humanoid robots with the goal of shipping robots with human-level intelligence. These robots are engineered to perform a variety of tasks in both home and commercial markets. This role will focus on developing the perception systems for these robots, encompassing onboard computer vision, localization, visuomotor policies, and offline data annotation.

$200k - $400k

SpaceXSI is seeking an experienced Governance, Risk, and Compliance (GRC) Engineer to scale our security and AI governance compliance posture. This role involves setting organizational standards, designing and implementing controls, and automating compliance processes to enable a fast-moving team to ship safely. The ideal candidate will possess deep knowledge of modern security and AI frameworks, translating control requirements into technical implementations, and partnering with engineers to integrate compliance into architecture and CI/CD pipelines. You will collaborate across engineering, legal, product, and leadership to ensure our AI systems are audit-ready for enterprise, commercial, and public-sector environments.

$100k - $198k

Figure is an AI robotics company developing autonomous general-purpose humanoid robots with the goal of shipping them with human-level intelligence for home and commercial markets. Our AI team is seeking Localization and Mapping Engineers to enable Figure humanoid robots to perform highly dynamic operations in demanding real-world environments.

$200k - $400k

Figure is an AI robotics company developing autonomous general-purpose humanoid robots with the goal of shipping human-level intelligent robots for home and commercial markets. We are seeking an Android lead to take full ownership of Figure's consumer Android application, which will pair with proprietary hardware and handle high volumes of data. As the founding Android engineer, you will define the technical direction, launch the app, and build the team.

$200k - $400k

Figure is an AI robotics company developing autonomous general-purpose humanoid robots with the goal of shipping robots with human-level intelligence for home and commercial markets. We are seeking a backend engineer to build the services and infrastructure for Figure's consumer mobile application, encompassing areas like authentication, payments, and tooling. You will be responsible for end-to-end ownership of systems, from identity and billing to delivery pipelines, internal dashboards, and the cloud platform.

$200k - $400k

SpaceXSI is building Super Intelligence to help humanity understand the universe. We are seeking exceptional Applied engineers to join a high-priority project that approximately 600 million monthly users use. This is an exciting opportunity for individuals with an engineer or scientist background to apply their skills to recommendation systems, ranking algorithms, search technologies, and many other systems. You’ll work at the intersection of advanced AI development and real-world impact, enhancing the ability to connect users with relevant content, accounts, and experiences.

$180k - $440k

Together AI

The Developer Experience (DevX) team at Together AI is responsible for how developers learn and build on the platform, managing the documentation site, API reference, quickstarts, and cookbooks. They treat documentation as a product, with content living in Git and publishing through Mintlify, synchronized with the API via CI/CD automation. The team also focuses on making content accessible to AI coding agents, developing a house style guide for AI-assisted authoring and structured content. As a Technical Writer Intern on DevX, you will write, test, and ship documentation used by thousands of developers. You will be paired with a mentor and own significant projects from scoping to launch, with real users and metrics. This is a hands-on, technical role where you will run the code you document, call APIs, and contribute to the documentation repository from your first week. Potential projects include building migration kits, making documentation agent-ready, generating CLI reference from source, and writing evaluation design tutorials.

Salary not listed

Ultra is seeking a Product Engineer, AI Enablement to develop and deploy internal tools that enhance AI utilization across the company. This role involves collaborating with various teams to identify AI opportunities, build reliable internal tools and workflows, and ensure their adoption. You will be part of the Software team, focusing on both the software development lifecycle for AI tools (coding agents, reviews, testing) and empowering non-engineering colleagues with AI-driven automations. The position is production-oriented, requiring evaluation of commercial tools, development of custom solutions, and measurement of impact and adoption. This is an in-person role in NYC, offering direct visibility into Ultra's operations.

$150k - $225k