Senior Java Developer

Luxoft Poland — Poland · Posted ~1 day ago

Senior Full-time Hybrid

Skills

Java Spring Boot Microservices Kafka REST SOAP PostgreSQL MongoDB JUnit TestNG Mockito OAuth2 JWT Spring Security Docker Kubernetes SOLID Clean Code Agile Java 11+ Azure Cosmos DB

🔓 Log in to save this job, tailor your resume & track your apply process — 7 days free, no card needed.

Log in to add to target list

Summary

We are looking for a Senior Java Developer to join a long-term, enterprise-scale project in the investment banking domain. You will be responsible for building and evolving mission-critical backend services supporting complex business workflows and regulatory processes. The platform leverages distributed microservices, event-driven communication, and BPM orchestration in a cloud-enabled environment. The ideal candidate has over 7 years of enterprise application development experience, deep knowledge of Java and Spring Boot, and expertise in modern cloud, containerization, and security practices.

Highlights

Long-term enterprise project with a global client. Hybrid work model (3 days in office). Fully remote recruitment process. Stable employment contract offering tax-optimized copyright deductions. Comprehensive private health and dental care, life and travel insurance, sports card, and psychological support. Access to training platforms and an internal mobility program.

Description

Project Description: You will join a long-term, enterprise-scale project for a global client in the investment banking domain. The project focuses on building and evolving a set of mission-critical backend services that support complex business workflows, regulatory processes, and system integrations across the bank’s ecosystem. The platform is based on a distributed microservices architecture, leveraging Spring Boot, event-driven communication, and BPM-driven process orchestration. The system operates in a cloud-enabled, containerized environment, with a strong emphasis on security, scalability, resiliency, and maintainability. You will work closely with architects, QA engineers, DevOps, and business stakeholders in an agile setup, contributing not only code but also technical direction, best practices, and mentoring. Responsibilities: • Design, develop, and maintain enterprise-grade backend services using Java 11+ and Spring Boot • Contribute to the design and evolution of distributed microservices architectures • Implement and integrate REST and SOAP APIs and event-driven solutions using Kafka • Develop and maintain business process workflows using a BPM engine (preferably Flowable) • Ensure high standards of code quality by applying SOLID principles, Clean Code, and design patterns • Write and maintain comprehensive unit and integration tests using JUnit, TestNG, Mockito, and WireMock • Work with relational and document databases such as PostgreSQL, MongoDB, and Azure Cosmos DB • Implement security and authentication mechanisms using OAuth2, JWT, and Spring Security • Collaborate with DevOps teams on containerization and deployment using Docker and Kubernetes • Participate actively in agile ceremonies (refinement, planning, reviews, retrospectives) • Provide technical guidance, perform code reviews, and advocate for engineering best practices • Collaborate closely with cross-functional teams, including QA, DevOps, and product owners Mandatory Skills Description: - Solid experience in JVM programming languages (ideally Java11+) and design patterns - Frameworks: Spring Boot - Proven track record of enterprise level application development for 7+ years - Understanding of distributed microservices architectures and communication patterns - Experience with relational and document databases (PostgresSQL, MongoDB, Azure Cosmos) - Testing Frameworks (JUnit, TestNG, Mockito, WireMock) - Messaging & Integration (Kafka, REST, SOAP) - Security & Authentication (OAuth2, JWT, Spring Security) - Containerization & Orchestration (Docker, Kubernetes) - Advocating engineering best practices (SOLID, Clean Code) - Experience with Agile mode of working - Excellent communication and collaboration skills - Familiarity with Cloud based technologies 🏠 Hybrid work (3 days/week from the office) What do we offer our employees? 💰Copyrights which means higher net salary for Developers 🌐 Fully remote recruitment process 🖋 Stable employment based on an employment contract LuxMed health & dental care 🏦 Life insurance, 🧳 Travel insurance 🏋🏽 MyBenefit program (sports card, well-being program etc.) 📞Employee assistance program for you and your family! (consultations with a psychologist, coaching sessions, assistance in private life) 🚗 Car rental 🎓 LuxTalent platform (webinars, training, courses with certificates) 🌎 Internal Mobility program - possibility of rotation between projects, locations, accounts ...and even more!