• Feature Development: Design and implement AI-powered features across the full stack, from backend inference services to intuitive frontend interfaces within the ClickHouse Cloud platform. • API Architecture: Create robust, scalable APIs that connect ClickHouse's database capabilities with modern AI/ML inference systems and external/internal AI services. • Ecosystem Integrations: Implement and maintain integrations with the broader AI/ML ecosystem and standards, ensuring that ClickHouse as a technology works seamlessly with popular frameworks and tools. • Technical Integration: Integrate models into production systems with proper monitoring, versioning, observability, and evaluation. • Oncall: Participate in the daytime oncall rotation along with the rest of the team. • Developer Experience: Design and implement developer tools, SDKs, and documentation that enable users to leverage ClickHouse’s AI/ML capabilities.

Role Description We are seeking an experienced Senior Java Backend Engineer to join our team and contribute to the design and delivery of robust, scalable backend systems. This role is ideal for someone who combines strong engineering fundamentals, distributed systems experience, and modern development practices, with a focus on performance, security, and maintainability. Qualifications - Strong engineering fundamentals - Experience with distributed systems - Modern development practices - Focus on performance, security, and maintainability Requirements - Experience in backend system design and delivery - Ability to work collaboratively in a team environment - Strong problem-solving skills Benefits - Inclusive workplace culture - Opportunities for personal and professional growth - Commitment to well-being and individual celebration

• Be part of a cross-functional team to work on continuous improvement of our systems with innovative technologies • Collaborate closely with the team to deliver features from requirements and analysis through development into production • Work with Product Managers to clarify and prioritize work • Work with QA Engineers to maintain and improve quality • Work with DevOps engineers to support operational and troubleshooting work • Keep up to date with the latest technologies and evaluate new tools • Define and use best practices to deliver new features effectively while improving the quality of existing systems

Role Description We’re looking for a Senior Backend Engineer to help us build an internal AI agent platform. You’ll be joining a very early-stage initiative to build an internal platform for an AI agent ecosystem. This is your chance to be a key player in shaping a transformative project from the ground up — one that will scale into a powerful platform impacting multiple areas of the business. You’ll contribute to the foundation of a game-changing solution that integrates AI technologies to drive automation and innovation across the company. You’ll work with cutting-edge technologies, including LLMs and agent frameworks, designing architectures at the intersection of large-scale services and AI, and helping integrate them deeply into core internal tools. You’ll work on high-impact projects in a high-growth environment, alongside a world-class remote engineering team spread across 20+ countries. Qualifications - 5+ years of backend engineering experience - At least 2 years working with Golang - At least 2 years working with Python - Experience with AI agent frameworks: Langchain, Langgraph, ADK (a plus) - Experience in building or integrating LLM-based features and agent-centric architectures (a plus) - ML experience: learning and evaluation of models, implementation of them in production (big plus) - Experience building scalable, distributed systems and working with high-load architectures - Solid understanding of backend tools and technologies: PostgreSQL, Redis, Kubernetes, Google Cloud Platform, GitLab, and a microservices architecture - Experience developing internal instruments, automations, CRM, and so on - A passion for writing clean, testable, and maintainable code - A proactive mindset and the ability to work independently - Strong communication skills in English (B2 level or higher) Requirements - Development of backend for AI agent platform and microservices around it - Participate in the architecture setup, in choosing technologies - Stay up to date with updates and frameworks around AI agent technologies, study and experiment - Improve and optimize parts of the platform related to agent creation, quality evaluation, and performance under load - Work closely with platform clients, take feedback into account, and help build a user-friendly product Benefits - Full-time B2B contract - Fully remote setup, work from anywhere in Europe - Up to 20% tax allowance - 22 paid leave days annually - Stock options (ESOP) in a fast-scaling, pre-IPO company - Flexi benefits you can use for wellness, travel, or learning - Work alongside a high-performing, international engineering team in a global fintech unicorn