Lead Kotlin Engineer
- Hiring from
- Ukraine
- Work type
- Remote
- Posted
- Sep 26, 2026
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Find me a jobWe are looking for a Lead Kotlin Engineer to guide the design and delivery of scalable backend systems while providing technical leadership across the engineering team.
Responsibilities
- Lead the architecture and development of backend services using Kotlin
- Design and maintain distributed systems with a focus on caching strategies, queues, and event-driven processing
- Drive the implementation of service-contract frameworks using gRPC, Protobuf, and REST
- Oversee data modeling and integration efforts across DynamoDB and PostgreSQL
- Establish best practices for CI/CD pipelines and Infrastructure as Code
- Mentor engineers and provide technical direction within a leadership capacity
- Collaborate on the integration of LLM/AI engineering solutions, including RAG pipelines and agentic patterns
- Evaluate and adopt orchestration frameworks and managed RAG/vector services to support AI-driven features
- Ensure high standards of scalability, reliability, and maintainability across cloud-based deployments
Requirements
- 6+ years of experience in software engineering, including 2+ years in a technical leadership role
- Proficiency in Kotlin
- Strong experience with AWS, particularly EKS, along with Docker, Kubernetes
- Experience in CI/CD and Infrastructure as Code
- Strong experience with gRPC, Protobuf, and HTTP/REST as service-contract frameworks
- Hands-on experience with DynamoDB and PostgreSQL, including data modeling for product features
- Solid understanding of distributed systems, including caching strategies, queues, eventual consistency, and asynchronous/event-driven processing
- Solid grounding in LLM/AI engineering fundamentals, including prompt design, RAG pipelines, agentic patterns, tool use, and LLM evaluation
- Hands-on experience with Spring AI LLM orchestration framework or similar frameworks
- Hands-on experience with AWS Bedrock AgentCore and Knowledge Bases or similar managed RAG/vector services
- English proficiency at B2+ level or above