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August 14, 2026

Senior Java Developer (with Angular)

Senior • Remote

20,400 - 25,900 PLN

Warsaw, MZ, Poland

We are looking for a Senior Full Stack Developer (70% Java – 30% Angular) to join the Customer Care team and help build the ecosystem of applications supporting client service operations. You will design and develop both backend microservices and user interfaces — from solution design through to production deployment. The main focus is on the backend (Java), with meaningful contribution to the frontend layer (Angular).

About the Customer Care team

Customer Care supports post-onboarding processes for new and existing clients and works closely with a range of other departments. The team designs and develops an ecosystem of AI-based solutions — from internal microservices and integrations with external tools to its own Chat AI. It also builds internal AML and anti-fraud systems, as well as Customer Database — the central repository of client data. These solutions contribute to higher service quality, greater security, and improved client satisfaction.

The team works in quarterly cycles based on clearly defined goals and KPIs.

Responsibilities

  • Work in a Scrum environment with a strong focus on effective team collaboration.
  • Develop multiple products and a wide range of functionalities.
  • Build high-performance systems that process massive volumes of data with minimal latency.
  • Support high availability and scalability for users around the world.

Technologies

  • Backend: Java 21+, Micronaut
  • Frontend: Angular, TypeScript, RxJS, SCSS
  • Inter-service communication: gRPC
  • Asynchronous communication: Kafka, Pulsar, RabbitMQ, Chronicle
  • Data storage: PostgreSQL, MongoDB, Redis
  • Infrastructure: Rancher (Kubernetes), deployed across multiple data centers
  • Production monitoring: Prometheus, Grafana, OpenSearch, OpsGenie
  • Testing: JUnit, Testcontainers, Jest
  • Development: IntelliJ IDEA, VS Code/WebStorm, GitHub Copilot, Claude Code, Windsurf
  • Source code and CI: GitLab, GitLab CI
  • Task and knowledge management: Jira, Confluence, Google Workspace (Gmail, Drive, Docs, Meet, Chat)
  • Internally developed GenAI tools are available to all employees.

Requirements

  • Strong hands-on experience building, designing, implementing, and evolving Java-based microservices.
  • Understanding of scalability and performance challenges.
  • Commercial experience with Angular.
  • Solid knowledge of RxJS, TypeScript, HTML5, and CSS3/SCSS.
  • Ability to translate business analysis into concrete technical solutions while meeting requirements and deadlines.
  • Ownership of assigned tasks, including risk identification and solution proposal.
  • Commitment to clean, testable code, engineering best practices, and system architecture.
  • Active contribution to continuous improvement, optimization, and team delivery.
  • Effective communication and collaboration within an experienced, mature team.

What we offer

  • Real impact on product development.
  • Work in an experienced team that actively shares knowledge.
  • A clear growth path supported by regular feedback and transparent career development.
  • Training budget for courses and conferences of your choice.
  • An additional day off on your birthday.
  • An additional day off for parents.
  • Equipment tailored to your needs.
  • Private medical care and group insurance.
  • Access to an e-learning platform for learning English and a benefits platform.
  • Access to a wellbeing platform, including workshops and private therapy sessions.
  • Remote work, work from the Warsaw office, or from a coworking space in your city.
  • Regular team integration events.

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Hybrid

Warsaw, MZ, Poland

🏢 Summary: Senior Full Stack Java Developer role building and maintaining enterprise leasing and mobility applications for European markets. The position involves delivering scalable Java/Spring Boot and Angular solutions in Agile teams, with containerized deployment using Docker and Kubernetes. 🗂️ Requirements: 5+ years of commercial software development experience, Modern Java proficiency, Angular proficiency, Spring Boot experience, Full-stack application development experience, Docker and Kubernetes experience, Understanding of modern software architecture, Agile/Scrum experience, Native-level Polish, English at B2 level or higher 📃 Skills: Java, Angular, SpringBoot, Docker, Kubernetes 🏢 Description: At neXa , we’re not just building digital solutions — we’re helping businesses grow smarter. We work with forward-thinking clients across industries to design, build, and implement technology that makes a real difference. From intelligent automation to custom applications, our projects are as diverse as our team. For one of our clients, we’re now looking for a Senior Full Stack Java Developer with Angular to join an international technology team developing and maintaining enterprise-scale leasing and mobility solutions. In this role, you will work on modern applications supporting business-critical processes across multiple European markets. You will collaborate within Agile cross-functional teams alongside Product Owners, Scrum Masters, engineers, designers, and technical leaders, contributing to scalable software solutions built with modern Java technologies, Angular, cloud platforms, and containerized environments. The role is based in Warsaw with a hybrid work model requiring 3 days per week in the office. The position is offered as a permanent employment contract (UoP) with a competitive salary package and benefits. Scroll down to see the full job description, including responsibilities and requirements: Responsibilities: Design, develop, and maintain full-stack applications using Java and Angular Build scalable backend services using modern Java technologies and Spring Boot Develop and enhance frontend applications using Angular Collaborate with cross-functional Agile teams to deliver high-quality software solutions Participate in the full software development lifecycle, including analysis, design, implementation, testing, and deployment Create maintainable, secure, and high-performance applications Work with containerized environments using Docker and Kubernetes Contribute to application architecture and technical design decisions Integrate applications with internal and external systems Participate in code reviews and promote engineering best practices Troubleshoot and optimize existing solutions Collaborate with international teams across different locations Contribute to continuous improvement initiatives within the development team Requirements: Minimum 5 years of commercial experience in software development Strong proficiency in modern Java development Very good knowledge of Angular Practical experience with Spring Boot Experience developing full-stack applications Experience working with Docker and Kubernetes Understanding of modern software architecture principles Experience working in Agile/Scrum environments Strong problem-solving and analytical skills Ability to collaborate effectively within cross-functional teams Native-level Polish language skills English proficiency at minimum B2 level Nice to have: Experience working with cloud platforms and cloud-native solutions Experience with enterprise-scale applications Knowledge of CI/CD practices and DevOps tools Experience working in international technology organizations Experience with leasing, mobility, banking, or financial services domains Knowledge of additional frontend or backend technologies