Senior Software Engineer - AI Assisted Development

We are looking for a motivated Senior Software Engineer to join our international team and help us bootstrap a new engineering team in our newly formed Belgrade TechHub. This team will be organized around AI agentic-driven software development, leveraging modern AI-assisted engineering practices to accelerate delivery, improve quality, and enhance developer productivity. 

In this role, you will design, build, and deliver applications powering the platform used by our customers every day. Working in an Agile environment, you will collaborate closely with Product Managers, Business Analysts, QA engineers, and fellow developers to support existing applications and implement new functionality. 
We are looking for an engineer who combines strong backend engineering fundamentals with a forward-looking mindset and hands-on experience using AI coding agents such as Claude Code, Codex, or similar tools as part of the software development lifecycle. 

Location: Belgrade, Serbia 
Model of work: Hybrid  

Responsibilities:

• Analyze, design, and implement complex software solutions and enhancements to existing products
• Contribute to the establishment and growth of a new engineering team in the Belgrade TechHub, helping shape engineering culture, practices, and ways of working
• Work in an AI agentic-driven development environment, effectively using AI coding agents and automation tools to support design, coding, testing, troubleshooting, and documentation
• Partner with Product Management and Quality Assurance throughout all phases of the SDLC to ensure software meets both functional and non-functional requirements
• Actively participate in Agile ceremonies and contribute to continuous improvement of team processes
• Ensure software quality by writing automated tests and participating in design and code reviews
• Develop test programs, proof-of-concepts, and functional prototypes when required
• Assist management with the technical evaluation of issues, including analysis of alternatives, risk assessment, and recommendations
• Lead by example, provide technical guidance, and delegate tasks to less experienced team members
• Design and optimize systems for scalability, reliability, maintainability, and performance
• Promote engineering best practices, including effective and responsible use of AI-assisted development tools.

Qualifications:

Mandatory Skills 

• Proven experience with Java (8+ years)
• Strong knowledge of object-oriented principles and design patterns
• Experience building RESTful services
• Strong hands-on experience with Spring Boot and Tomcat
• Good knowledge of SQL, preferably Oracle, and exposure to Hibernate/JPA
• Experience with standard software development tools such as IntelliJ, JUnit, JMeter, Maven, Jenkins, ArgoCD, Git, and Jira
• Experience with containerization and orchestration, including Docker and Kubernetes
• Ability to design and optimize systems for scalability and performance
• Solid understanding of multithreading and concurrency
• Experience working in Agile development environments
• Hands-on experience using AI coding agents such as Claude Code, Codex, or similar AI-assisted software development tools
• Strong communication skills, problem-solving mindset, collaborative approach, autonomy, and a can-do attitude

Nice to Have Skills 

• Ability to lead the delivery of technical projects; Tech Lead experience is a plus
• Understanding of network protocols and Unix/Linux user-level skills
• Exposure to messaging and streaming platforms such as RabbitMQ or Kafka
• Experience with NoSQL databases such as MongoDB
• Experience in multi-tier, asynchronous, distributed architecture environments
• Experience defining or improving engineering practices in new or scaling teams
• Interest in or experience with AI-enabled software engineering workflows, prompt-driven development, and automation of developer tasks 

Education 

• Bachelor’s or Master’s degree in Computer Science or an equivalent technical field 
• Certifications in Java or Cloud technologies are a plus