Senior Java Engineer

Luxoft Poland; Województwo małopolskie; Hybrid; PLN 80,000 - 100,000; Full time

Benefits offered by this job

Higher net salary due to copyrights

Fully remote recruitment process

Stable employment options (contract or B2B)

MyBenefit program

Employee assistance program

LuxTalent platform for training

Internal Mobility program

Job summary

Luxoft Poland is seeking a Java Developer to work on an enterprise-scale project in the investment banking domain. You will design and maintain backend services using Java 11+ and Spring Boot, contribute to microservices architectures, and implement REST and SOAP APIs. The ideal candidate has a strong background in enterprise application development (7+ years) and familiarity with relational and document databases. This role offers a hybrid work environment with flexible recruitment options.

Qualifications

• 7+ years of experience in enterprise-level application development.
• Solid experience in JVM programming languages and design patterns.
• Understanding of security mechanisms and authentication.

Responsibilities

• Design, develop, and maintain backend services using Java and Spring Boot.
• Implement and integrate REST and SOAP APIs.
• Develop business process workflows using a BPM engine.

Skills

JVM programming languages

Java 11+

Spring Boot

Distributed microservices architecture

PostgreSQL

MongoDB

Azure Cosmos DB

JUnit

TestNG

Mockito

WireMock

OAuth2

JWT

Docker

Kubernetes

Flowable

Agile methodologies

Communication

Collaboration

Job description

Overview

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
• 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

• 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)
• Security & Authentication (OAuth2, JWT, Spring Security)
• Experience with Agile mode of working
• Excellent communication and collaboration skills
• Familiarity with Cloud based technologies
• Expertise with at least one BPM engine (Flowable preferably)

Hybrid work (3 days/week from the office)

What we offer

• Copyrights which means higher net salary for Developers
• Fully remote recruitment process
• Stable employment based on an employment contract or B2B if you prefer
• 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)
• LuxTalent platform (webinars, training, courses with certificates)
• Internal Mobility program - possibility of rotation between projects, locations, accounts