Java Software Engineer

Lancesoft — Indonesia · Posted ~17 hours ago

Skills

Java enterprise application development requirements analysis software design software testing unit testing integration testing code review troubleshooting debugging English Python Kubernetes LangChain Semantic Kernel RAG OpenAI Azure OpenAI

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Summary ✨ AI‑Generated

A software engineering role focused on core enterprise systems and the full application lifecycle, from requirements and design through deployment and maintenance. The position combines Java backend development with AI-enabled workflows, retrieval-augmented generation, LLM integrations, testing, code review, debugging, and production support. Strong fluent English communication and experience delivering multiple enterprise-scale or cross-country projects are required.

Highlights

Opportunity to work across the full software development lifecycle, contribute to enterprise-scale projects, build AI-powered workflows and RAG solutions, and participate in modern testing and engineering practices.

Description

o Involved in a team who manages core system development. o Participate in the overall application lifecycle: requirements analysis, design, development, testing, deployment, and maintenance. o Write and perform unit and integration tests; leverage AI-driven test generation tools. o Perform code reviews prior to every pull request and/or merge request. o Define and communicate technical and design requirements; estimate effort in Story Points. o Troubleshoot and debug applications; participate in on-call/standby rotations for production support. o Build and maintain AI-powered workflows using LangChain, Semantic Kernel, or similar frameworks o Develop and deploy Retrieval-Augmented Generation (RAG) pipelines for document Q&A and contextual chat o Integrate LLM APIs (e.g., OpenAI, Azure OpenAI) into backend services and user interfaces Requirement Fluent in English, both written and verbal; experienced in at least 3 full- cycle, enterprise-scale or cross-country projects using English as the working language.5+ years professional experience in Java development, with Spring Boot as the primary framework.In-depth knowledge of microservice architecture and REST API development using Spring Boot.Strong understanding of resilience patterns (retries, circuit breakers, fallback methods) and scalable system design.Proficient with:▪ Spring Framework and its modules ▪ ORM/SQL mappers (Hibernate, MyBatis) ▪ Relational and NoSQL databases ▪ Vector databases (Pinecone, pgsql, Azure AI Search) Experience with messaging systems (JMS, Kafka, RabbitMQ, Redis Streams).Deep expertise in Spring Security, OAuth2, SSO; ability to conduct security audits and remediate OWASP Top Ten vulnerabilities.Mastery of Spring Batch: job orchestration, scheduling, monitoring, error handling, transaction management, and external system integration.Skilled in analyzing and modernizing legacy codebases.Expertise in JVM performance tuning and concurrency troubleshooting.Solid grasp of design patterns (GoF, EIP, Java EE, Microservices) and SOLID principles.Strong Linux foundations and scripting skills (Bash, Python); exposure toDocker and Kubernetes.Familiarity with Spring Cloud for distributed systems is a plus.Knowledge of monitoring and logging tools (Prometheus, Grafana, ELK, Splunk) and distributed tracing (Jaeger, Zipkin).Proficient with development toolchains: Git/SVN, CI/CD (Jenkins, TeamCity, GitLab CI), configuration management (Ansible, Chef, Puppet).Practical experience working with AI-MCP or similar AI-agent ecosystems; able to review, validate, and integrate AI-generated code.Experience integrating AI services or frameworks (OpenAI API, LangChain, AWS SageMaker) into production workflows and applying MLOps practices.Relevant certifications (Oracle Java, AWS/Azure/GCP, CISSP, CSSLP) are a plus.