Job VC
Senior Java Engineer (3073)
Technologies
Description
Ciklum
is looking for a
Senior Java (Kotlin) Engineer
to join our team full-time in Ukraine.
We are a custom product engineering company that supports both multinational organizations and scaling startups to solve their most complex business challenges. With a global team of over 4,000 highly skilled developers, consultants, analysts and product owners, we engineer technology that redefines industries and shapes the way people live.
About the role:
As a Senior Java (Kotlin) Engineer, become a part of a cross-functional development team engineering experiences of tomorrow. You will work on data-intensive systems, focusing on reliability, observability, and seamless user experiences at scale. Ptoject — A fast-growing international e-commerce and technology company that connects millions of customers and sellers through scalable digital platforms and high-load systems. The company operates across multiple markets and builds innovative solutions in online retail, logistics, delivery, and marketplace technologies, serving millions of users daily.
Responsibilities:
Design, build, and maintain scalable backend services in a microservices architecture
Take full ownership of the service lifecycle, from design and implementation to testing, deployment, and production support
Collaborate with cross-functional teams in an international environment to deliver high-quality solutions
Optimize system performance, scalability, and reliability for high-load environments
Requirements:
Strong backend engineering background with a focus on JVM languages (Java, Kotlin)
Hands-on experience with Java 21, Kotlin, and Spring Boot 3
Experience building microservices and designing modular, scalable architectures
Experience with event-driven systems and messaging platforms (e.g., Apache Kafka)
Experience working with databases such as PostgreSQL, Couchbase, and Elasticsearch
Proven ability to improve performance and reliability of systems handling large-scale data
Strong communication skills and ability to work in a collaborative, international environment
Passion for modern backend practices and continuous learning
Languages: Java 21, Kotlin
Experience with Go is a plus
Frameworks: Spring Boot 3.x, KoTest, Gin (Go)
Data and Messaging: PostgreSQL, Couchbase, Kafka, Elasticsearch
Architecture: Microservices, RESTful APIs, Event-Driven Design
Tools: Docker-enabled local development and CI/CD best practices
What’s in it for you?
Strong community: Work alongside top professionals in a friendly, open-door environment
Growth focus: Take on large-scale projects with a global impact and expand your expertise
Tailored learning: Boost your skills with internal events (meetups, conferences, workshops), Udemy access, language courses, and company-paid certifications
Endless opportunities: Explore diverse domains through internal mobility, finding the best fit to gain hands-on experience with cutting-edge technologies
Flexibility: Enjoy radical flexibility — work remotely or from an office, your choice
Care: We’ve got you covered with company-paid medical insurance, mental health support, and financial & legal consultations
About us:
At Ciklum, we are always exploring innovations, empowering each other to achieve more, and engineering solutions that matter. With us, you’ll work with cutting-edge technologies, contribute to impactful projects, and be part of a One Team culture that values collaboration and progress.
As one of Ukraine’s largest IT companies and a top employer recognized by Forbes, we’ve spent over 20 years delivering meaningful tech solutions. We proudly support diverse talent and military veterans, recognizing their unique skills and perspectives they bring to shaping the future.
Want to learn more about us? Follow us on
Instagram
,
Facebook
,
LinkedIn
.
Explore, empower, engineer with Ciklum!
Interested already? We would love to get to know you! Submit your application. Can’t wait to see you at Ciklum.
is looking for a
Senior Java (Kotlin) Engineer
to join our team full-time in Ukraine.
We are a custom product engineering company that supports both multinational organizations and scaling startups to solve their most complex business challenges. With a global team of over 4,000 highly skilled developers, consultants, analysts and product owners, we engineer technology that redefines industries and shapes the way people live.
About the role:
As a Senior Java (Kotlin) Engineer, become a part of a cross-functional development team engineering experiences of tomorrow. You will work on data-intensive systems, focusing on reliability, observability, and seamless user experiences at scale. Ptoject — A fast-growing international e-commerce and technology company that connects millions of customers and sellers through scalable digital platforms and high-load systems. The company operates across multiple markets and builds innovative solutions in online retail, logistics, delivery, and marketplace technologies, serving millions of users daily.
Responsibilities:
Design, build, and maintain scalable backend services in a microservices architecture
Take full ownership of the service lifecycle, from design and implementation to testing, deployment, and production support
Collaborate with cross-functional teams in an international environment to deliver high-quality solutions
Optimize system performance, scalability, and reliability for high-load environments
Requirements:
Strong backend engineering background with a focus on JVM languages (Java, Kotlin)
Hands-on experience with Java 21, Kotlin, and Spring Boot 3
Experience building microservices and designing modular, scalable architectures
Experience with event-driven systems and messaging platforms (e.g., Apache Kafka)
Experience working with databases such as PostgreSQL, Couchbase, and Elasticsearch
Proven ability to improve performance and reliability of systems handling large-scale data
Strong communication skills and ability to work in a collaborative, international environment
Passion for modern backend practices and continuous learning
Languages: Java 21, Kotlin
Experience with Go is a plus
Frameworks: Spring Boot 3.x, KoTest, Gin (Go)
Data and Messaging: PostgreSQL, Couchbase, Kafka, Elasticsearch
Architecture: Microservices, RESTful APIs, Event-Driven Design
Tools: Docker-enabled local development and CI/CD best practices
What’s in it for you?
Strong community: Work alongside top professionals in a friendly, open-door environment
Growth focus: Take on large-scale projects with a global impact and expand your expertise
Tailored learning: Boost your skills with internal events (meetups, conferences, workshops), Udemy access, language courses, and company-paid certifications
Endless opportunities: Explore diverse domains through internal mobility, finding the best fit to gain hands-on experience with cutting-edge technologies
Flexibility: Enjoy radical flexibility — work remotely or from an office, your choice
Care: We’ve got you covered with company-paid medical insurance, mental health support, and financial & legal consultations
About us:
At Ciklum, we are always exploring innovations, empowering each other to achieve more, and engineering solutions that matter. With us, you’ll work with cutting-edge technologies, contribute to impactful projects, and be part of a One Team culture that values collaboration and progress.
As one of Ukraine’s largest IT companies and a top employer recognized by Forbes, we’ve spent over 20 years delivering meaningful tech solutions. We proudly support diverse talent and military veterans, recognizing their unique skills and perspectives they bring to shaping the future.
Want to learn more about us? Follow us on
,
,
.
Explore, empower, engineer with Ciklum!
Interested already? We would love to get to know you! Submit your application. Can’t wait to see you at Ciklum.