Handshake AI

Handshake is seeking a Member of Technical Staff to define how frontier coding agents are benchmarked and improved. This is a high-ownership role for researchers who build, partnering with top AI researchers and software engineers to develop new benchmarks, reward and verifier systems, agent-evaluation methodologies, and data-quality techniques focused on AI for Coding. You will tackle core questions in frontier AI progress, including what to measure, how to design effective evaluations, create high-signal feedback, and build actionable data systems. As an early member, you will have significant influence over the team's technical direction, operating culture, and the open-source software, benchmarks, and research products developed.

$200k - $350k

Handshake is seeking a Machine Learning Engineer I for the Growth Relevance team to help shape the evolution of careers in the AI economy. This role will focus on developing, deploying, and enhancing machine learning systems for lifecycle optimization, personalized notifications, and monetization strategies. You will work with cutting-edge ML infrastructure, including embedding-based retrieval, Graph Neural Networks, and multi-stage rankers, contributing to critical marketplace metrics and responsible AI practices.

$150k - $189k

Handshake AI is seeking a highly motivated Data Scientist to support analytics, measurement, and operational insights across their human data training workflows. This role involves working with fast-moving data related to expert performance, task quality, throughput, and operational efficiency. It's a hands-on position offering significant ownership, close collaboration with product and operations teams, and a steep growth curve for high performers. Handshake AI aims to become the default platform for the AI data economy, similar to LinkedIn's impact on professional networking.

$135k - $180k

Handshake is seeking a Member of Technical Staff, Evals to help define how frontier AI systems are measured, understood, and improved. This is a high-ownership role for researchers who build, partnering with AI researchers, domain experts, and customers to develop new benchmarks, reward and verifier systems, agent-evaluation methodologies, and data-quality techniques. Early members of the team will have significant influence over technical direction, operating culture, and the open-source software, benchmarks, and research products built. The company prioritizes demonstrated research capability, technical judgment, and a builder's mindset over specific titles, degrees, or career paths.

$200k - $350k

Handshake is seeking a Member of Technical Staff to join their AI Engineering team. This role is crucial for building and improving the data systems that power frontier model training. You will be responsible for enhancing how Handshake generates, processes, and prepares complex and sensitive data, including creating high-quality synthetic data and anonymizing acquired data while preserving its value. You will collaborate with researchers, domain experts, legal teams, and customers to transform data-related challenges into experiments, pipelines, and products, influencing the company's technical direction and culture.

$200k - $350k

Handshake is seeking a Member of Technical Staff, Post-Training to help define and build a new organization focused on advancing the AI economy by organizing expert human knowledge. This role involves working directly with frontier labs on data, evaluation, and post-training challenges, building systems that transform expert knowledge into data and evaluations to improve frontier models. You will partner with researchers, domain experts, and customers to translate ambiguous post-training questions into experiments, evaluation frameworks, data pipelines, and products. As an early member, you will have significant influence over the technical direction, operating culture, and reusable systems built.

$200k - $350k

Handshake is seeking a Senior Software Engineer to join the Backend Platform team, with a primary focus on supporting Handshake AI (HAI) and internal AI initiatives. This role involves building and maintaining backend services, shared platform capabilities, and developer tooling. The work will center on core backend platform concerns such as service architecture, APIs, data systems, performance, reliability, and developer experience, with an increasing use of LLMs and agents. The ideal candidate will possess strong backend fundamentals combined with practical knowledge of LLM-powered and agentic systems.

$208k - $260k

As a Forward Deployed Engineer at Handshake AI Enterprise, you will embed directly within enterprise customer environments as part of a small, expert team. Your role involves deeply understanding each customer's business, including their workflows and bottlenecks, to translate this knowledge into production-grade AI agents that measurably transform their operations. This is a full-stack role where you will own the entire process from defining the solution, building and deploying agents, designing evaluations, and iterating until performance targets are met. Over time, you will develop genuine domain expertise in your customer's vertical, leveraging this knowledge to continuously improve AI solutions. This opportunity is ideal for individuals who have a proven track record of building AI applications that work in the real world and are eager to tackle high-stakes challenges with superior data and strong lab relationships.

$220k - $300k

As a Forward Deployed Engineer at Handshake AI Enterprise, you will embed directly within enterprise customer environments as part of a small, expert team. Your role will involve deeply understanding each customer's business, including their workflows and bottlenecks, to translate this knowledge into production-grade AI agents that measurably transform their operations. This is a full-stack ownership role, encompassing solution definition, agent building and deployment, evaluation design, and iterative performance improvement. You will develop into a genuine domain expert within your customer's vertical, leveraging this expertise to continuously enhance AI capabilities.

$155k - $170k

Handshake is seeking a Senior Cloud Engineer for its Agentic Infrastructure team. This role is crucial in shaping the foundation upon which engineering teams build, viewing infrastructure as a product itself. The engineer will be instrumental in designing, deploying, and evolving cloud infrastructure, collaborating with engineering, platform, and security teams to establish scalable patterns and make it easy for developers to implement best practices. This is a proactive role focused on architecting systems, creating playbooks, and driving towards a more intelligent, automated infrastructure future, rather than simply maintaining existing systems.

$176k - $220k

Handshake is seeking a Senior LLM Platform Engineer to join their Data and ML Platform team. This role is crucial for building and operating the shared LLM control plane, including LiteLLM gateways, provider integrations, access controls, observability, and cost management. You will also contribute to adjacent platform systems for workflow orchestration, model serving, and developer enablement, collaborating closely with various engineering and data science teams. This is an infrastructure-heavy role focused on ensuring the reliability and scalability of LLM services within Handshake's core career marketplace and Handshake AI initiatives.

$176k - $220k

Handshake AI Enterprise is a new business unit focused on building AI-powered applications for large companies. We deploy expert teams directly into enterprise environments to understand customer needs, identify AI impact areas, and develop agents to automate critical workflows. This role is for a Senior Frontend Engineer who will architect the foundational UI across the entire team, establishing the component system, design language, and engineering patterns. The goal is to set a high technical bar and make foundational decisions that enable scalability and quality.

$205k - $300k

As an Applied AI Engineer at Handshake AI Enterprise, you will embed directly within enterprise customer environments as part of a small, expert team. Your role will involve deeply understanding each customer's business, workflows, and bottlenecks to translate this knowledge into production-grade AI agents that measurably transform their operations. This is a full-stack position where you will define solutions, build and deploy agents, design evaluations, and iterate to improve performance. Over time, you will develop deep domain expertise in your customer's vertical, leveraging this to continuously enhance the AI solutions.

$220k - $300k

As a Software Engineer on the Handshake AI Enterprise team, you will be responsible for the product experience layer of AI applications deployed directly into enterprise customer environments. This role involves working closely with customers to understand their workflows and translate their needs into delightful, end-to-end solutions. You will be a key player in ensuring the quality and craft of AI applications in enterprise settings, holding a high bar for product quality across every deployment. This is a unique opportunity to combine direct customer impact with founding-team ownership, helping to define the future of high-craft enterprise AI products.

$220k - $300k