PubNub

Senior Backend Engineer (AI/LLM Systems)

Senior Backend Engineer

Design and build AI/LLM systems, integrate providers, and build scalable, low-latency inference infrastructure; enable internal tooling and technical communication in English.

Senior Solutions Architect 

5+ years in technical architecture with SDK/API experience; Web/Mobile app development; aligns customer needs with product; pre-sales/enterprise engagement; strong communication.

Software Engineer (Client)

Software Engineer

Minimum 3 years experience in enterprise grade software, expertise in web and server-side development, strong software design skills, and knowledge of data structures and algorithms.

Title	Location	Date
Senior Backend Engineer (AI/LLM Systems) Full Time · $312K-$420K Poland · Remote	Poland Remote	Mar 9, 2026
Senior Solutions Architect Full Time · $175K-$180K · 5+ YOE United States · Remote	United States Remote	Feb 4, 2026
Software Engineer (Client) Full Time · 3+ YOE San Francisco, California, United States · Onsite	San Francisco, California, United States Onsite	Jan 2, 2017

Activities	Real-time messaging APIData streaming servicesPush notification infrastructureChat SDK developmentIoT device control
Headquarters	US
Industries	Real-time CommunicationCloud Computing
Name	PubNub
Employees	119
Type	Private
Tagline	Provides real-time messaging APIs for building interactive applications.
Founded	2,010
Website	pubnub.com
Latest Funding Round	Series E
Latest Funding Year	2,021
Latest Funding Amount	65,000,000
Latest Investors	The Raine Group

PubNub

About PubNub