Founded in 2012, H2O.ai is on a mission to democratize AI. As the world’s leading agentic AI company, H2O.ai converges Generative and Predictive AI to help enterprises and public sector agencies develop purpose-built GenAI applications on their private data. With a focus on Sovereign AI—secure, compliant, and infrastructure-flexible deployments—H2O.ai delivers solutions that align with the highest standards of data privacy and control.

Our open-source technology is trusted by over 20,000 organizations worldwide, including more than half of the Fortune 500. H2O.ai powers AI transformation for companies like AT&T, Commonwealth Bank of Australia, Chipotle, Workday, Progressive Insurance, and NIH.

H2O.ai partners include NVIDIA, Dell Technologies, Deloitte, Ernst & Young (EY), Snowflake, AWS, Google Cloud Platform (GCP), VAST Data and MinIO. H2O.ai’s AI for Good program supports nonprofit groups, foundations, and communities in advancing education, healthcare, and environmental conservation. With a vibrant community of 2 million data scientists worldwide, H2O.ai aims to co-create valuable AI applications for all users.

H2O.ai has raised $256 million from investors, including Commonwealth Bank, NVIDIA, Goldman Sachs, Wells Fargo, Capital One, Nexus Ventures and New York Life.

For more information, visit www.h2o.ai.

About This Opportunity

Are you passionate about building scalable, cutting-edge AI-solutions and eager to make an impact on an innovative product? Join us as a Software Engineer to help revive and deliver critical products to our enterprise customers. You will work alongside experienced Software Engineers who will guide and orchestrate the team’s efforts in a fast-paced, collaborative environment. If you love solving tough problems, working with modern tech like Kubernetes, Go, Python, and streaming platforms, and want to be part of a team that moves fast, this role is for you!

This position is based in Krakow, Poland.

What You Will Do

• Build & ship: Contribute to the design, development, and deployment of scalable applications using Kubernetes, Go, Python, Protobuf, gRPC, and REST API.
• Think in microservices: Help design and maintain scalable microservices architecture.
• Work with real-world big data: Optimize and process large datasets efficiently.
• Get hands-on with streaming data: Work with Kafka and real-time data processing (we’ll teach you if you’re new to it!).
• Deploy like a pro: Use Helm to deploy and manage Kubernetes applications.
• Work like a pro: Debug, test, and refine software to ensure high code quality and reliability.
• Learn & grow: Work closely with a seasoned Senior Engineer who will mentor and support you.

• Bachelor’s degree in Computer Science or a related field (or equivalent work experience).
• 2-4 years of software development experience (or solid projects if you’re a fast learner!).
• Proficiency in Java, Go, Python, Kubernetes, Protobuf, gRPC, REST API, and micro-services architecture.
• Passion for data-heavy applications and handling large datasets.
• Familiarity with microservices architecture and distributed systems.
• Bonus points if you’ve worked with Kafka or Helm (but if not, we’ll help you learn!).
• Knowledge of JVM-based languages is advantageous but optional.
• A growth mindset – we don’t expect you to know everything, but we expect you to be excited to learn.

Why H2O.ai?

• Make an impact – We’re shipping a product that matters, and your work will be front and center.
• Fast learning environment – You’ll be mentored by a Senior Engineer and work with some of the most in-demand tech in the industry.
• Cutting-edge tech stack – Kubernetes, Go, Python, microservices, and real-time data.
• Startup energy + stability – The best of both worlds: the excitement of shipping fast with the stability of an established company.
• Flexible working hours and remote-friendly policies.

💡 Sounds exciting? Let’s talk! We’re looking for smart, curious engineers who are ready to take on the challenge! Apply now and help us shape the future of enterprise AI software. 🚀

H2O.ai is committed to creating a diverse and inclusive culture. All qualified applicants will receive consideration for employment without regard to their race, ethnicity, religion, gender, sexual orientation, age, disability status or any other legally protected basis.

H2O.ai is an innovative AI cloud platform company, leading the mission to democratize AI for everyone. Thousands of organizations from all over the world have used our cutting-edge technology across a variety of industries. We’ve made it easy for people at all levels to generate breakthrough solutions to complex business problems and advance the discovery of new ideas and revenue streams. We push the boundaries of what is possible with artificial intelligence. 

H2O.ai employs the world’s top Kaggle Grandmasters, the community of best-in-the-world machine learning practitioners and data scientists. A strong AI for Good ethos and responsible AI drive the company’s purpose.