RainWalker

RainWalker OÜ develops electronic hardware and software products, from circuits and firmware to small-scale manufacturing and deployment. Services include sensor and controller development, interface boards, prototypes and batch manufacturing, web and mobile applications, and upgrades or new modules for existing equipment. The company also offers its own products, including the Kiisu multipurpose development board and smart parking occupancy sensors that operate on LTE NB-IoT and LTE Cat.1 networks and are available by subscription.

Customers include companies across industries and early-stage startups, for whom it provides idea validation, prototype-to-product development and mentoring. Revenue comes from development projects and product sales, with the parking sensors sold on a subscription basis.

RainWalker was founded in 2023 and is based in Tallinn, Estonia, where it has an office in the city centre and its own lab. The company states it holds ISO 9001 certification and that its team has more than ten years of experience in electronics engineering. It is currently hiring a full-time on-site engineer in Tallinn, with entry-level candidates welcome.

Product: Hardware and software development services, prototyping and small-scale manufacturing, plus the Kiisu dev board and LTE NB-IoT parking sensors.