Senior Backend Engineer (Java)

What you will do

• Design and implement BPMN 2.0 process models and DMN decision tables in Flowable
• Build and maintain Java / Spring Boot micro-services integrating with Flowable Java and REST APIs
• Design and operate Kafka-based event streaming for core leasing and asset-finance domains
• Own service boundaries, API contracts and data models end-to-end
• Collaborate with the AI Agent Engineer to expose AI automation as Flowable service tasks and event-driven gateways
• Author specification-driven change proposals, and act as the named human approver for changes to orchestration processes, decision logic and core-domain integrations
• Grow automated and end-to-end test coverage for critical process flows; test coverage is the condition that enables autonomous agent work in a module
• Define technical standards and review code from our Southeast Asia developer partners
• Participate in architecture decisions and communicate clearly in English with engineering peers and business stakeholders

Your profile

• 5+ years of Java backend engineering experience with Spring Boot / Spring Cloud
• Production Flowable experience, including BPMN 2.0 and DMN, is mandatory
• Strong Kafka expertise in production systems is mandatory
• Fintech experience is mandatory: production work on a regulated financial product such as leasing, lending, banking, payments or insurance, where financial decisions, customer data or regulatory requirements mattered
• Solid experience with microservices patterns, distributed systems and event-driven architecture
• PostgreSQL experience; Elasticsearch knowledge is a plus
• Confident with Docker and Kubernetes in a cloud-native environment
• Experience designing and maintaining automated tests for asynchronous, stateful and integration-dependent workflows is mandatory
• AI-first engineering mindset: daily use of coding assistants and agents on production work, and the ability to write a change specification precise enough that an agent implements it correctly and a reviewer can verify that it did
• Fluent in English, with availability to work 11:00–19:00 WIB for dependable collaboration with the European team
• Experience in car leasing, asset finance or insurance domains, including an understanding of relevant regulatory and compliance requirements, is a strong plus

Skills: Spring Boot, Java, PostgreSQL, Go / Golang