Senior Kotlin Developer (Agentic AI)
We are looking for talented Senior Software Engineer to join our AI project in Europe.
The ideal person will have hands-on experience with multiple backend frameworks, databases, and tools, enabling them to adapt to different project requirements and contribute to the development of robust applications.
We use Kotlin, Spring Boot and reactive programming to build a core AI agent framework/platform enabling internal teams to easily develop, deploy, and scale their own AI agents within a shared infrastructure.
Our California-based customer is an American global e-commerce leader, one of the most popular and successful websites on the Internet. It provides platform services by connecting millions of sellers and buyers in more than 190 markets around the world.
Main Responsibilities:
- Design and develop a robust and extensible Kotlin framework and platform for configuring and managing AI agents
- Write clean, maintainable, and efficient code that complies with our coding standards
- Ensure the performance, quality, and responsiveness of the framework/platform
- Identify and correct bottlenecks and errors
- Help to maintain code quality, organization, and automatization.
- Create and maintain technical documentation for the framework/platform
Role Requirements:
- At least 5 years of proficiency in Kotlin
- Deep experience with the Spring Framework
- Reactive tools experience (Project Reactor)
- Experience setting up Virtual Machines
- Knowledge of different communication protocols such as REST, GraphQL, gRPC
- Experience with distributed systems
- Experience with YAML-based configuration (applications, infrastructure, CI/CD)
- Familiarity with tracing, metrics and monitoring best practices
- Experience of creating frameworks and platform for other developers
- Proficiency in Maven or similar tools
- Familiarity with NoSQL databases
- Very good spoken and written knowledge of English language (C1)
Nice to have:
- Python experience is nice to have
- Familiarity with GenAI, AI agents, machine learning, and natural language processing concepts is a plus
- Experience with MCP, A2A, RAG is a big plus
- Experience with event-driven architecture
- Experience with Docker and Kubernetes
- BSc or MSc in Computer Science, Engineering or relevant field
Professional growth:
- Strong engineering culture
- Challenging projects and mature teams
- Personalized on-demand cross-company mentoring support enabling you to learn new things faster
- Plenty of opportunities to share knowledge and get more experience such as opportunity to mentor others, speak at events, and contribute to pre-sales
- Direct communication with the customer
- An individual education budget
- A friendly, supportive and dynamic work environment
- Care, comfort and fun
- A relocation package
- Flexible working hours
- Healthcare & sport benefits
- Corporate events, outstanding parties and team buildings
We offer*:
- Flexible working format - remote, office-based or flexible
- A competitive salary and good compensation package
- Personalized career growth
- Professional development tools (mentorship program, tech talks and trainings, centers of excellence, and more)
- Active tech communities with regular knowledge sharing
- Education reimbursement
- Memorable anniversary presents
- Corporate events and team buildings
- Other location-specific benefits
*not applicable for freelancers
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What We Do
N-iX is a global software solutions and engineering services company that helps world’s leading organizations turn challenges into lasting business value, operational efficiency, and revenue growth using advanced technology. Whether you need to build a custom solution, modernize your digital product or acquire extra tech expertise - we have the experience and capabilities to ensure your success. With over 2,000 professionals in 25 countries across Europe and the Americas, N-iX offers expert solutions in cloud, data analytics, embedded software, IoT, AI, machine learning, and other tech domains. Being in business for over two decades, we have worked with dozens of industry-leading enterprises and Fortune 500 companies creating value across a wide variety of sectors, including finance, manufacturing, supply chain, retail, e-commerce, healthcare, and more. Our unique combination of business domain expertise and technical know-how enables us to effectively collaborate with ISVs, tech companies, and enterprises of all sizes. Thanks to the strong tech ecosystem and partnerships with AWS, GCP, Microsoft, SAP, OpenText, Snowflake, and others, we bring extra speed, scale and efficiency to more than 160 organizations across the globe. N-iX is recognized by numerous industry awards, such as CRN Solution Provider 500, Global Outsourcing 100 by IAOP, ISG Provider Lens™, Modern Application Development services providers by Forrester, etc
