Senior Java and Python Backend Developer

Luxoft Poland; Kraków; On-site; PLN 120,000 - 180,000; Full time

Job summary

Luxoft Poland is seeking a skilled Java backend engineer to help migrate securitization platforms to a modern Azure cloud environment and design scalable microservices. The role focuses on building REST APIs, containerized services, and data workflows.

You will deploy on AKS, use Terraform for IaC, and integrate with trading, risk, and regulatory systems while ensuring high availability, resilience, and observability in a complex finance domain. Expect collaboration across projects and locations.

Qualifications

• Strong object-oriented programming with Java 11+.
• Extensive Spring Boot / Spring ecosystem experience.
• Experience building REST APIs and message-driven services.
• Containerized applications and cloud deployments on Azure.
• Familiarity with AKS, Terraform, CI/CD and observability.

Responsibilities

• Design, develop, and maintain backend services in a microservices architecture.
• Build RESTful APIs and message-driven services for securitization workflows.
• Develop and deploy cloud-native apps on Azure with AKS-based orchestration.
• Use Terraform to define and manage infrastructure as code.
• Work with Docker and contribute to CI/CD pipelines.
• Implement monitoring, logging, and observability for production systems.
• Utilize Linux/Unix scripting for troubleshooting and operational support.

Skills

Java 11+

Spring Boot

REST APIs

Docker

Azure

AKS

Linux scripting

GitHub Copilot

CI/CD

Kafka

IBM MQ

Tibco EMS

Terraform

Oracle

Sybase

Tools

Terraform

Docker

GitLab

GitHub

IntelliJ

VSCode

Azure

AKS

Job description

Private Medical & Dental care & Life Insurance

Internal Mobility program - possibility of rotation between projects, locations, accounts

Project Description

The project is part of the Credit, Asset-backed & Securitized Products (CASP) division of an investment bank, focusing on platforms that support securitization and structured finance products. The current primary objective is migrating existing on-premise systems to a modern Microsoft Azure cloud environment, transforming legacy architecture into scalable, cloud-native solutions. It involves rebuilding and adapting systems used for structuring, processing, and distributing securities such as ABS, MBS, and CLOs. The platform integrates with trading, risk, and regulatory systems to support both real-time and batch data processing. The target architecture follows a microservices-based approach with containerized services deployed on Azure Kubernetes Service (AKS). Infrastructure provisioning and configuration are managed using Terraform as Infrastructure as Code. The system leverages REST APIs and event-driven communication to ensure scalability and flexibility during and after migration. Special focus is placed on maintaining data consistency, performance, and regulatory compliance throughout the transition. The project emphasizes high availability, resilience, and observability in a complex financial ecosystem. AI-assisted development tools like GitHub Copilot are integrated to enhance engineering productivity. The environment promotes modern engineering practices, automation, and continuous improvement.

Responsibilities

• Design, develop, and maintain backend services using Java 11+ and Spring Boot within a microservices architecture.
• Build and enhance RESTful APIs and message-driven services supporting securitization and credit workflows.
• Develop and deploy cloud-native applications on Microsoft Azure, including AKS-based container orchestration.
• Use Terraform to define and manage infrastructure as code.
• Work with containerization technologies (Docker) and contribute to CI/CD pipelines using GitLab or GitHub.
• Implement integrations using messaging systems such as Kafka, IBM MQ, or Tibco EMS.
• Collaborate on system design, ensuring scalability, resilience, and alignment with distributed architecture principles.
• Develop and optimize database interactions using Azure SQL, Oracle, or Sybase.
• Write and maintain unit, integration, and end-to-end tests to ensure code quality and reliability.
• Implement monitoring, logging, and observability practices to support production systems.
• Utilize Linux/Unix skills for troubleshooting and scripting.
• Leverage AI-assisted development tools to improve efficiency while maintaining high coding standards.

Skills

What is relevant to have

• Strong object-oriented programming skills with Java 11+
• Extensive experience with Spring Boot / Spring ecosystem
• Hands-on development of Web and/or REST APIs and message-driven services
• Experience building and running containerized applications
• Strong experience with Azure cloud, including:
• Kubernetes (AKS) and container orchestration
• Compute (VMs) and storage solutions (e.g., Azure Files)
• Solid Linux/Unix skills (shell scripting, system understanding)
• Experience with AI-assisted development tools (e.g., GitHub Copilot) integrated into development workflows
• Experience with GitLab / GitHub, IntelliJ / VSCode

What is nice to have

• Microservices architecture and system design
• Messaging and integration technologies: Kafka, IBM MQ, Tibco EMS
• Testing frameworks (unit, integration and E2E testing)
• Monitoring and observability practices
• Strong analytical and problem-solving abilities
• Experience working in Agile teams (Scrum)