Spike

Spike Technologies Inc. is a B2B agentic artificial intelligence and health data startup founded in 2022. The company is split between San Francisco, California, and Vilnius, Lithuania, and was acquired in July 2026 by Raintree. Spike provides a multimodal voice artificial intelligence-powered platform designed to eliminate administrative burdens in the healthcare industry. Its clients include organizations across healthcare, government, digital health, and health insurance sectors.

In its artificial intelligence and engineering initiatives, Spike focuses on building systems for generative artificial intelligence and voice recognition and synthesis for real-time agentic use cases. Engineers at the company work on optimizing software for low latency while maintaining flexibility, accuracy, scalability, and compliance in healthcare workflows. Responsibilities include developing interfaces for connecting system components like text-to-speech, speech-to-text, large language models, and external application programming interfaces.

Spike is currently building its teams by hiring for senior-level engineering roles, specifically a Senior AI Engineer and a Senior Backend Engineer. These positions are located in Vilnius, Lithuania, with remote work options available. The open roles indicate that the company is expanding its technical capacity around real-time voice artificial intelligence infrastructure, data synchronization, and system observability.