Expert Java Engineer

Ciklum is looking for an Expert Java Engineer to join our team full-time in the Slovakia. 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 an Expert Java Engineer, become a part of a cross-functional development team engineering experiences of tomorrow. You will lead the Ciklum pod that our Client is bringing on to scale post-Series B engineering. The pod will deliver against two parallel workstreams: net-new feature engineering on the Java 21 / Spring Boot 3 platform, and the Salesforce-to-microservices data and capability migration. You are the single throat-to-choke for the pod technically, and the principal technical interface to Client 's VP Engineering and senior staff engineers. Responsibilities: Own the technical roadmap and sequencing of the Salesforce → microservices migration. Define bounded contexts, the order of extraction, and the parallel-run / cutover strategy Set engineering standards for the pod — ADRs, code review bar, branching model, definition of done. Bring them; don't ask Client to write them Run the pod's delivery rhythm: planning, demos, retros, weekly engineering written update to Client Personally code 40–60% of the time. This is a hands-on lead role, not an architect-on-the-sidelines role Front the technical relationship with Client — RFC reviews, architectural debates, escalation point for blockers Own quality at the pod level: SLOs are met, test coverage holds, deployments don't break trunk Be the productivity multiplier on AI tooling for the pod — set the patterns for Copilot/Claude Code use, prompt libraries, AI-assisted code review Requirements: 8+ years building Java backend systems, with at least 3 years on Spring Boot in production Demonstrable monolith-to-microservices migration experience as the technical lead — not as a contributor. You can talk through the seams you cut, the data you split, the failures you handled Strong AWS architectural experience — VPC design, IAM, RDS PostgreSQL, ECS/EKS, SQS/SNS or equivalent Hands-on with async messaging architectures (Kafka, RabbitMQ, AWS SNS/SQS, or equivalent) including idempotency, ordering, and backpressure Track record of leading pods of 4–8 engineers in a fully remote or hybrid setting Native-level English — written and spoken. You will write the team's ADRs and design docs Desirable: Direct experience with Salesforce data extraction and migration to a relational target Working experience with AI agent frameworks — LangGraph, LangChain, CrewAI, or comparable Logistics, supply chain, B2B marketplace, or WMS / TMS domain background Prior technical-lead role in a Series B–C scale-up that grew from 5 to 50+ engineers Open-source contributions or technical writing that demonstrate the engineering bar What`s in it for you? Strong community: Work alongside top professionals in a friendly, open-door culture that values initiative and empowers its people to succeed Fast-paced & agile environment: Be part of a dynamic, fast-moving organization that champions efficiency and innovation Global exposure: Collaborate with international, cross-functional teams and contribute to large-scale initiatives Tailored learning: Boost your skills with internal events (meetups, conferences, workshops), Udemy access, language courses, and company-paid certifications Flexibility: Balance office and remote work to fit your rhythm Care: Take advantage of our extensive benefits offering, aligned with the best market standards The salary starts from 3800 Eur gross. The final salary depends on the previous experience and professional knowledge of the candidate. 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. Our Slovakia hub brings together passionate professionals working on global initiatives. Be part of a close-knit team that’s driving digital transformation and creating lasting impact. Want to learn more about us? 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. #LI-LS1 Apply To This Job