Senior Java Engineer

Ciklum is looking for a Senior Java Engineer to join our team full-time in Poland.

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 Engineer, become a part of a cross-functional development team engineering experiences of tomorrow. 

Are you a seasoned Software Engineer with a passion for building scalable integration solutions? Do you thrive in complex environments and enjoy collaborating across teams? If so, we have an exciting opportunity to help shape the future of our logistics capabilities.
As a Senior Software Engineer on our Integrations team, you will help build, scale, and maintain the core engine of our logistics platform. Our team owns the Delivery Creation and Lifecycle domain, designing the systems that power our operations and partner integrations from order placement to final milestone.
We operate in a highly distributed, event-driven microservices environment using Domain-Driven Design (DDD) to build clean, efficient data flows. This role offers an exciting mix of greenfield innovation and modernization: you will architect completely new services from scratch while strategically modernizing and decomposing our existing legacy systems.

About client:

With almost 100 million active users across 25 countries, they’re a global food tech company. Their tech ecosystem connects millions of active customers with hundreds of thousands of connected partners in countries across the globe. Their mission: To empower every food moment around the world, whether it’s through customer service, coding or couriers.

Responsibilities:

• Design, develop, and maintain software solutions for our logistics integration platform, ensuring high performance, scalability, and reliability
• Actively contribute to the design and evolution of our Delivery Lifecycle domain using DDD principles
• Develop and maintain both synchronous HTTP APIs and asynchronous event-driven integrations
• Apply your understanding of event-driven architectures and microservices to build a scalable and maintainable platform (EDA and DDD)
• Design and implement seamless integrations with internal APIs
• Ensure the quality and stability of your code through thorough testing and adherence to best practices
• Choose and implement the right tool for the job, working across both Relational (SQL) and NoSQL databases
• Partner with product managers and other engineering teams to seamlessly integrate downstream and upstream logistics workflows

Requirements:

• Strong experience in software development with a proven track record of building and deploying scalable applications
• Solid understanding and experience with Java and the Spring Boot ecosystem
• Deep understanding of messaging patterns, event streaming (Kafka), and queue management (SNS/SQS)
• Proven ability to design and implement RESTful APIs and integrate with external APIs
• Experience with event-driven architectures and microservices
• Understanding of database concepts and experience working with various database systems
• A champion for clean code and applying DDD concepts to break down complex business domains
• Strong problem-solving and analytical skills
• Excellent communication and collaboration skills
• Fluency in English

Desirable:

• Prior experience in the Logistics, Supply Chain, or Last-Mile Delivery domains
• Hands-on experience with AWS cloud-native deployments (CI/CD pipelines, IAM, ECS/EKS)

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 flexibility – full remote working possibilities
• Care: We’ve got you covered with company-paid medical insurance

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.

With delivery centers in Wrocław and Gdańsk, our 300+ professionals in Poland drive forward-thinking solutions for global clients. Join a community where collaboration sparks innovation—and your impact reaches millions.

Explore, empower, engineer with Ciklum!

Interested already? We would love to get to know you! Submit your application. We can’t wait to see you at Ciklum.

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