Java Developer (Spring)

Summary

Andersen is hiring a Java Developer (Spring) for a project developing scalable microservices-based platforms and high-load digital services in the financial domain.

The company is a large international financial services organization that provides a wide range of banking and digital financial solutions for private clients, businesses, and corporate customers. It focuses on reliable customer service, long-term financial stability, innovation, and the development of modern products that support everyday banking, business growth, and efficient financial management.

The project is focused on developing and evolving a modern digital platform built on a microservices architecture. It supports high-traffic online services and advanced search capabilities, with a strong emphasis on scalability, cloud-native technologies, performance optimization, and continuous architectural improvement.

Responsibilities

• Designing and implementing complex backend components for the microservice-based platform.
• Making architectural decisions and helping define technology direction together with the team.
• Designing REST and event-driven APIs, asynchronous communication via Kafka.
• Designing and performance-tuning PostgreSQL and Elasticsearch solutions for high-traffic real estate search.
• Developing services running on Azure cloud infrastructure with operational considerations in mind.
• Conducting code reviews, establish and maintain development standards.
• Mentoring mid-level and junior colleagues, supporting knowledge sharing.
• Working closely with Product, Frontend, and DevOps teams.
• Reducing technical debt, identifying and implementing refactoring directions.

Requirements

• Experience in Java backend development for 6+ years.
• Deep knowledge of Spring Boot and the Spring ecosystem (Security, Data JPA, Cloud).
• Experience designing microservice architectures, including operational aspects.
• Solid command of design patterns and architectural principles (SOLID, Clean Code, DRY).
• Strong SQL skills and production experience with PostgreSQL (indexing, partitioning, performance tuning).
• Experience with Apache Kafka / event streaming solutions.
• Testing experience (JUnit, Mockito, Testcontainers, integration tests).
• Knowledge of Azure cloud environments (AKS, Azure Monitor, Key Vault, Blob Storage).
• Docker experience, basic Kubernetes/AKS knowledge.
• Practical experience with Agile (Scrum) methodology.
• Ability to independently design and document complex systems.
• Proactive communication and ability to explain technical topics clearly.
• Level of English – from Upper-Intermediate and above.

Desired skills

• Experience operating Elasticsearch clusters and schema design.
• Azure certifications (e.g., AZ-204, AZ-305) or deeper Azure PaaS knowledge.
• Experience with Domain-Driven Design (DDD) or hexagonal architecture.
• Experience with NoSQL databases (e.g., Redis, MongoDB).
• Experience with API gateway solutions (e.g., Azure API Management).
• Domain experience in real estate platforms or marketplaces.

Other important skills for the vacancy are described in the knowledge matrix

Reasons to join us

• Experience in teamwork with leaders in FinTech, Healthcare, Retail, Telecom, and others. Andersen cooperates with such businesses as Samsung, Siemens, Johnson & Johnson, BNP Paribas, Ryanair, Mercedes, TUI, Verivox, Allianz, T-Systems, etc..
• The opportunity to change the project and/or develop expertise in an interesting business domain.
• Job conditions – you can work both fully remotely and from the office or can choose a hybrid variant.
• Guarantee of professional, financial, and career growth! The company has introduced systems of mentoring and adaptation for each new employee.
• The opportunity to earn up to an additional 1,000 USD per month, depending on the level of expertise, which will be included in the annual bonus, by participating in the company's activities.
• Access to the corporate training portal, where the entire knowledge base of the company is collected and which is constantly updated.
• Bright corporate life (parties / pizza days / PlayStation / fruits / coffee / snacks / movies).
• Certification compensation (AWS, PMP, etc).
• Referral program.
• Private health insurance and compensation for sports activities.

Join us!

Lokalizacje

Worldwide