Software Engineer, Backend (Bucharest)

About the role

The Knowledge Assist (KA) team at Cresta builds AI solutions that help contact center agents access the right knowledge at the right time. Our projects include real-time generative assistance (GenKA), knowledge search (KS), retrieval-augmented generation (RAG) capabilities, and knowledge connectors to integrate with customer systems. We are looking for a software engineer who enjoys working across the stack and thrives in a dynamic, fast-paced environment. While this role leans toward backend development, a full stack skill set is highly valued.

Responsibilities

• Build scalable, reliable backend services that power real-time AI assistance and search.
• Design APIs and data flows to support integrations with knowledge bases and customer systems.
• Work across the stack when needed, including backend, frontend, and infrastructure layers.
• Collaborate closely with product managers, machine learning engineers, and fellow software engineers.
• Take ownership of projects end-to-end, from design through implementation and operation in production.
• Contribute to technical discussions, architecture reviews, and continuous improvement efforts.
• Qualifications We Value:
• Bachelor's degree in Computer Science or a related field, or equivalent practical experience.
• 3+ years of experience in software engineering roles.
• Strong backend development skills, preferably with Python, Go, Node.js, or similar languages.
• Proficiency in designing clear, maintainable APIs (e.g., REST, gRPC).
• Familiarity with frontend development (e.g., React or similar frameworks) is a plus.
• Experience working with databases (PostgreSQL, ClickHouse, Elasticsearch, or equivalents).
• Solid understanding of system design, distributed systems, and cloud platforms (AWS, GCP, or Azure).
• Clear communication skills and a collaborative working style.
• Conclusion:

Benefits

Additional Information

Cresta unlocks the true potential of the customer experience, turning every conversation into a competitive advantage. Cresta's unified AI platform combines conversational AI agents, real-time human agent augmentation, and comprehensive conversation intelligence to drive revenue and efficiency gains across every channel. The world's leading companies, including United Airlines, Cox Communications, and Marriott, use Cresta to power world-class customer experiences every day. Born from the Stanford AI Lab, Cresta has raised more than $270 million from the world's leading investors, including a16z, Greylock, and Sequoia. Cresta's leadership includes some of the leading minds in AI today. Our CEO, Ping Wu , founded and led Google's Contact Center AI and Vertex AI platforms before joining Cresta to build the future of AI-driven customer experiences. Over the next few years, AI is going to redefine how people all over the world interact with businesses every day. Come build that future at Cresta.

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