Senior Java/Python Backend Developer

Luxoft Poland; Kraków; On-site; PLN 180,000 - 320,000; Full time

Benefits offered by this job

LuxMed health and dental care

Life and travel insurance

MyBenefit program

Job summary

Luxoft Poland is seeking a senior Java backend developer to join the CASP-oriented cloud modernization project in Kraków. You will build and maintain cloud-native microservices in a Spring Boot/Java 11+ stack on Azure, with AKS orchestration and Terraform IaC.

Work involves designing REST APIs, data access, CI/CD, and observability, while ensuring security, resilience, and regulatory alignment in a complex financial ecosystem.

Qualifications

• Strong object-oriented programming in Java 11+.
• Extensive Spring Boot / Spring ecosystem experience.
• Hands-on development of Web and REST APIs and message-driven services.
• Experience building and running containerized applications.
• Strong Azure cloud experience including AKS, compute and storage.
• Solid Linux/Unix skills and shell scripting.
• Experience with AI-assisted development tools integrated into workflows.
• Experience with GitLab / GitHub, IntelliJ / VSCode.

Responsibilities

• Design, develop, and maintain backend services in a microservices architecture.
• Build and enhance RESTful APIs and message-driven services for securitization workflows.
• Develop and deploy cloud-native apps on Microsoft Azure with AKS orchestration.
• Use Terraform to define and manage infrastructure as code.
• Work with Docker and contribute to CI/CD pipelines using GitLab or GitHub.
• Implement integrations using Kafka, IBM MQ, or Tibco EMS.
• Collaborate on scalable, resilient system design aligned with distributed architecture.
• Develop and optimize database interactions on Azure SQL, Oracle, or Sybase.
• Write unit, integration, and end-to-end tests to ensure quality.
• Implement monitoring, logging, and observability for production systems.
• Leverage Linux/Unix for troubleshooting and scripting.
• Utilize AI-assisted development tools to improve efficiency.

Skills

Java 11+

Spring Boot

REST APIs

Microservices

Azure AKS

Docker

Linux/Unix

GitHub Copilot

CI/CD

SQL / Oracle / Sybase

Tools

Terraform

AKS

Docker

Kafka

IBM MQ

Tibco EMS

GitLab

GitHub

IntelliJ/VSCode

Job 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.

• 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.

Mandatory Skills Description

• 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

Nice-to-Have Skills Description

• 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)
• Fluent in English

Our Benefits

• Stable employment based on an employment contract
• Copyright-based remuneration for Developers, resulting in a higher net salary
• LuxMed private health and dental care
• Life and travel insurance
• MyBenefit program (sports card, well-being initiatives, and more)
• Employee Assistance Program for you and your family, including psychological consultations, coaching sessions, and support in personal matters
• Car rental options

Learning & Development

• Access to the LuxTalent platform, offering webinars, training sessions, and certified courses
• Internal Mobility Program, enabling rotation between projects, locations, and accounts