Machine Learning Engineer Jobs in Bulgaria

Senior AI Engineer (GraphRAG & Automation - Sofia/Ruse) Ontotext, doing business as Graphwise, is looking for a Senior Software Engineer focused on AI integration and data pipelines to help build the next generation of GraphRAG and Graph Automation products. You will work at the intersection of know

Oddin is looking for an experienced full-stack engineer who works across a TypeScript/React front end and a Golang backend, and who already uses AI as their default way of writing code. You'll build the products our partners integrate into their own platforms, and the systems behind them. How we bui

Why us? Insurify is one of the America’s fastest-growing MIT FinTech startups and has been recognized as one of Inc. 5,000’s fastest-growing private companies in America in 2025, 2024, 2023, 2022 and 2021, Forbes Fintech 50 List for 2023, 2022, and 2021, Forbes Next Billion Dollar Startups of 2022 g

Who We Are At Yuno, we are building the payment infrastructure that allows all companies to participate in the global market. Founded by veterans from payments and technology, including people who previously built Rappi, Yuno connects companies like InDrive, McDonald's, Rappi and Viva Aerobus with 3

At Sword, we’re building AI to heal billions and unlock humanity’s full potential. In doing so, we’re pioneering AI Care, a fundamentally new approach to healthcare built for medical reasoning, safety, and real-time treatment, not generic technology applied after the fact. As both a clinical-centric

MailerLite is one of the fastest-growing email marketing services. We help more than 1 million businesses around the world stay in touch with their customers. Today, we are a team of more than 170 dreamers, adventurers, and world travelers passionate about what we do and what we believe in. And we a

At Graphwise, we help enterprises transform fragmented data into connected, intelligent systems using Knowledge Graphs, semantic technologies, and modern AI architectures. About the role We’re looking for a strong Software Engineer with experience in data engineering and an interest in AI systems, d

MailerLite is one of the fastest-growing email marketing services. We help more than 1 million businesses around the world stay in touch with their customers. Today, we are a team of more than 170 dreamers, adventurers, and world travelers passionate about what we do and what we believe in. And we a

Actian is a global leader in hybrid data management and high-performance cloud warehousing. Our platforms serve as the backbone for mission-critical operations at world-class organizations like Bloomberg, Intuit, Lufthansa, and Citibank. We are fundamentally re-architecting how we build software by

The world of global advisory, audit and tax compliance services for large multi-nationals is rapidly changing and heavily dependent on technology. The KPMG Delivery Network (KDN) is a KPMG special purpose member firm offering a way for clients to leverage KPMG top talent and technology platforms thr

About Toloka At Toloka AI we create data that powers leading GenAI models and innovations. We work with frontier labs, big tech, renowned AI startups, enterprises and non-profit research organizations worldwide. We use a combination of Experts + Crowd + Tech Platform to teach AI models t

About Toloka At Toloka AI we create data that powers leading GenAI models and innovations. We work with frontier labs, big tech, renowned AI startups, enterprises and non-profit research organizations worldwide. We use a combination of Experts + Crowd + Tech Platform to teach AI models t

Why us? Insurify is one of America’s fastest-growing MIT FinTech startups and has been recognized as one of Inc. 5,000’s fastest-growing private companies in America in 2025, 2024, 2023, 2022 and 2021, Forbes Fintech 50 List for 2023, 2022, and 2021, Forbes Next Billion Dollar Startups of 2022

Why us? Insurify is one of America’s fastest-growing MIT FinTech startups and has been recognized as one of Inc. 5,000’s fastest-growing private companies in America in 2025, 2024, 2023, 2022 and 2021, Forbes Fintech 50 List for 2023, 2022, and 2021, Forbes Next Billion Dollar Startups of 2022

About the role We are looking for a Senior AI Engineer to develop and enhance AI-powered capabilities across our existing products. You will implement new AI features, integrate emerging AI technologies and ensure our conversational and voice AI solutions remain reliable, scalable and performant. Wo

About Cantina Cantina is a new social platform founded by Sean Parker with the most advanced AI character creator. Our bots are lifelike, social creatures that can interact wherever people are online—across voice, video, and text. Create yourself, imagine someone new, or choose from thousands of cha

About Cantina: Cantina Labs is a social AI company, developing a suite of advanced real-time models that push the boundaries of expression, personality, and realism. We bring characters to life, transforming how people tell stories, connect, and create. We build and power ecosystems. Cantina, our fl

About Toloka At Toloka AI we create data that powers leading GenAI models and innovations. We work with frontier labs, big tech, renowned AI startups, enterprises and non-profit research organizations worldwide. We use a combination of Experts + Crowd + Tech Platform to teach AI models t

⭐ Who we are Lodgify is a fast-growing scale-up company leading the vacation rental industry. Backed by $30M in funding, our platform empowers property owners and managers worldwide to efficiently manage and grow their business through technology. Headquartered in sunny Barcelona, we're now a team o

About Toloka At Toloka AI we create data that powers leading GenAI models and innovations. We work with frontier labs, big tech, renowned AI startups, enterprises and non-profit research organizations worldwide. We use a combination of Experts + Crowd + Tech Platform to teach AI models t