Back End Software Engineer (Kotlin)

Grow your career as a Back End Software Engineer at Exadel—where technical depth meets opportunity. Build forward-thinking solutions, collaborate with innovators, and stretch your expertise.

Why Join Exadel

We’re an AI-first global tech company with 25+ years of engineering leadership, 2,000+ team members, and 500+ active projects powering Fortune 500 clients, including HBO, Microsoft, Google, and Starbucks.

From AI platforms to digital transformation, we partner with enterprise leaders to build what’s next.

What powers it all? Our people are ambitious, collaborative, and constantly evolving.

About the Client

An international transportation technology company focused on building scalable digital solutions for modern rail operations. The organization develops internal platforms and automation tools that improve operational efficiency, support business growth, and streamline complex processes in a fast-paced environment. 

Project Tech Stack

Kotlin, Spring Boot, Akka/Pekko, PostgreSQL, Kafka, Event Sourcing, CQRS, AWS, Kubernetes (K8s), Docker, Microservices, RESTful APIs

What You’ll Do

• Develop and maintain backend microservices for e-commerce platforms
• Work in a cross-functional, self-organized Agile team
• Analyze and drive technical improvements
• Ensure high engineering quality through testing and code reviews
• Take ownership of features end-to-end, from design to production
• Contribute to the continuous improvement of existing systems
• Use modern development tools and AI-assisted engineering solutions responsibly

What You Bring

• 3+ years of experience building backend systems with Kotlin
• Experience with Spring Boot and microservices architecture
• Good understanding of OOP and Software Design Patterns
• Experience with PostgreSQL or other relational databases
• Knowledge of testing principles and engineering best practices
• Familiarity with CI/CD pipelines and production deployments
• Strong communication skills in English

Nice to have

• Experience with Akka/Pekko
• Experience with Java
• Experience with Docker and Kubernetes
• Knowledge of Kafka and event-driven architectures
• Understanding of Event Sourcing and CQRS
• Experience with AWS cloud services

English level

Upper-Intermediate

Legal & Hiring Information 

• Exadel is proud to be an Equal Opportunity Employer committed to inclusion across minority, gender identity, sexual orientation, disability, age, and more
• Reasonable accommodations are available to enable individuals with disabilities to perform essential functions
• Please note: this job description is not exhaustive. Duties and responsibilities may evolve based on business needs

Your Benefits at Exadel  

Exadel benefits vary by location and contract type. Your recruiter will fill you in on the details.

• International projects
• In-office, hybrid, or remote flexibility
• Medical healthcare
• Recognition program
• Ongoing learning & reimbursement 
• Well-being program
• Team events & local benefits 
• Sports compensation 
• Referral bonuses 
• Top-tier equipment provision

Exadel Culture

We lead with trust, respect, and purpose. We believe in open dialogue, creative freedom, and mentorship that helps you grow, lead, and make a real difference. Ours is a culture where ideas are challenged, voices are heard, and your impact matters.