Senior Java Developer

At BBH, Partnership is more than a form of ownership—it’s our approach to business and relationships.  We know that supporting your professional and personal goals is the best way to help our clients and advance our business. We take that responsibility seriously. With a 200-year legacy and a shared passion for what’s next, this is the right place to build a fulfilling career.

Join us as a Senior Java Developer

Location: Kraków

Hybrid model: Hybrid model 3 days per week in the office /2 days for a parent of a child up to 4 years old

About the team: Brown Brothers Harriman is seeking an experienced Senior Java Developer to join our IDS Systems Data Services team. In this role, you will design, develop, and maintain scalable business-critical applications that support key operational and client-facing functions across the firm. You will collaborate with cross-functional teams including product owners, architects, and engineers to build reliable, high-performing distributed systems. This role requires strong technical problem-solving skills, a commitment to engineering quality, and the ability to contribute to architecture discussions and technical decision-making. This position is well suited for an engineer who enjoys building robust backend systems, improving platform reliability, and contributing to modern software development practices in a highly collaborative environment.

In our team, you will be responsible for:

• Design, develop, and maintain scalable Java and Spring Boot backend applications and services.
• Build and support data-processing solutions that ingest, transform, validate, and deliver business-critical data.
• Develop and optimize complex SQL queries and data workflows across relational database platforms.
• Implement and support distributed data-processing workloads using Apache Spark.
• Develop, schedule, and monitor data pipelines and workflows using Apache Airflow or comparable orchestration tools.
• Integrate services and data pipelines with messaging platforms and event-driven architectures.
• Contribute to the design and development of distributed systems, microservices, and data-platform architecture.
• Write clean, maintainable, well-tested code in Java and, where appropriate, Python.
• Develop automated tests and participate in continuous integration workflows.
• Conduct code reviews and contribute to improving software engineering and data engineering best practices.
• Collaborate closely with engineers, architects, product owners, and business stakeholders to deliver technical solutions.
• Participate in architecture and design discussions, providing thoughtful technical input across application and data concerns.
• Identify and address issues related to data quality, performance, scalability, reliability, and security.
• Support CI/CD automation and help improve build, deployment, and development workflows.
• Troubleshoot production applications and data pipelines using logs, metrics, monitoring, and observability tools.

What we’re looking for:

• 8+ years of software engineering experience in an enterprise environment, with primary expertise in Java backend development.
• Strong hands-on experience with Java, Spring / Spring Boot, REST API development, and backend services.
• Strong SQL skills and substantial experience with relational databases, including data modeling, query optimization, and performance tuning.
• Production experience developing or supporting data-processing solutions using Apache Spark.
• Production experience with workflow orchestration using Apache Airflow or a comparable orchestration platform.
• Experience contributing to distributed systems, microservices, or service-based architectures.
• Working knowledge of Python for data processing, automation, scripting, or troubleshooting.
• Working knowledge of Linux and command-line tools.
• Experience with CI/CD and build tooling, including Git, Jenkins or a comparable platform, and Maven or Gradle.
• Experience troubleshooting production systems using Splunk or other logging, monitoring, and observability tools.
• Familiarity with automated testing frameworks and a solid understanding of software engineering principles and design patterns.
• Strong problem-solving skills and the ability to work effectively in a collaborative engineering environment.
• Excellent written and verbal communication skills.
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Nice to have:

• Experience with Oracle or Exadata; strong PostgreSQL or other enterprise relational database experience is also relevant.
• Experience with at least one messaging platform or event-streaming technology, such as Kafka, IBM MQ, RabbitMQ, or a comparable tool.
• Exposure to Dremio or other modern data-platform technologies, such as Databricks or Snowflake.
• Familiarity with containerization and orchestration platforms such as Kubernetes or OpenShift.
• Experience with API development and testing tools such as Postman and OpenAPI.
• Experience optimizing application and data-pipeline performance and troubleshooting distributed systems.
• Familiarity with secure software development practices and data-quality controls.

What we offer:

- To encourage cultural awareness and philanthropy, BBHers have 1 Culture Celebration Day and 1 Community Service Day in addition to their paid standard vacation allowance

- Private medical care

- Life Insurance

- Employee Assistance Program - offering independent and confidential counselling services for you and your family. You can get support for topics including family, marriage and relationships, finances, and legal issues.

- Professional trainings and qualification support

- Wellbeing Program

- Online Social Fund benefit platform

- Social, sport and integration events

- Onboarding Program for new hires

We value diverse experiences. We value diverse experiences and transferrable skillsets. If your career hasn’t followed a traditional path, includes alternative experiences, or doesn’t meet every qualification or skill listed in the job description, please do go ahead and apply.

About BBH:
Brown Brothers Harriman (BBH) is a premier global financial services firm, known for premium service, specialist expertise, technology solutions and partnership approach to client management. Across Investor Services and Capital Partners, we work with an enviable roster of sophisticated clients who make BBH their first call when they are tackling their hardest challenges. Delivering for our clients and each other energizes us.

We believe that how we do our work is just as important as what we do. We are relentless problem solvers who know our best ideas come from collective debate and development—so we are never possessive about our ideas. Every day we come together as a diverse community of smart and caring people to deliver exceptional service and expert advice—creating success that lasts. No matter where you sit in the organization, everyone is empowered to contribute their ideas. BBHers can pick up the phone and call any colleague, and they are happy to help. Expanding your impact beyond your daily role is part of how we operate as trusted partners to one another.

We believe stability is a competitive advantage, but being stable means having the knowledge, skill, and discipline to evolve, often—pushing the boundaries of innovation.  As a private partnership, every investment we make is in the relationships, technologies, products and development we believe are in the long-term interests of our clients and our people. Our long-tenured leaders are experts in their areas and are actively involved in the day-to day business, taking the time to provide guidance and mentoring to build the next generation of BBHers. Because we know, our success begins with yours.

Go to BBH.com to learn more about our rewards and benefits , philanthropy , approach to sustainability or how we support you to thrive personally, physically and financially .