Sr Java Software Developer

NTIATIVE IT Recruitment; Warszawa; Hybrid; PLN 180,000 - 240,000; Full time

Benefits offered by this job

Hybrid work model – 3 days per week on

Site in Warsaw

Job summary

NTIATIVE IT Recruitment in Warsaw is seeking a Senior Java Software Developer to design, build, and maintain backend services for an enterprise-grade platform used by financial institutions.

You will work in a small, autonomous Agile team on distributed systems, large-scale data, and high-performance systems, taking ownership from development to production and focusing on reliability and scale.

Qualifications

• Strong Java backend experience with a focus on scalable services.
• Experience delivering production-grade software in complex environments.
• Knowledge of distributed systems and large data workloads.
• Comfort with cloud-based architectures and deployment strategies.
• Structured, analytical problem-solving mindset in Agile settings.
• Experience working in Agile environments and owning features end-to-end.

Responsibilities

• Design, develop, and maintain backend services using Java.
• Build scalable and reliable solutions for an enterprise-grade platform.
• Improve system performance, reliability, and scalability.
• Work with large data across distributed systems.
• Investigate production issues and implement durable fixes.
• Contribute to backend architecture and best practices.

Skills

Java backend

Distributed systems

Cloud platforms

Agile practices

Production-grade software

Data-intensive

Tools

Spring Boot

Kafka

Docker

Kubernetes

SQL databases

Grafana

Job description

Senior Java Software Developer | Warsaw | Hybrid

What if your Java expertise could help some of the world’s largest financial institutions detect and prevent financial crime?

We’re looking for a Senior Java Software Developer to join a Financial Crime Product Development team building and maintaining backend services for an enterprise-grade platform used by global banks.

You’ll work in a small, autonomous Agile team, solving complex engineering challenges involving Java, distributed systems, large-scale data, performance, and reliability. This is a role where you can take real ownership, influence technical decisions, and work on systems where engineering quality has a tangible business impact.

If you enjoy building robust backend systems, digging into complex production problems, and finding solutions that stand the test of time...

Feel invited! This could be your next challenge.

WHAT WE OFFER

• Full-time position


• Hybrid work model – 3 days per week on-site in Warsaw


• Work on a production platform used by major financial institutions


• Opportunity to solve complex backend engineering challenges at scale


• Small, autonomous, and supportive Agile team


• High level of ownership and influence on technical decisions


• Modern technology stack focused on distributed systems and large-scale data


• Opportunity to work alongside experienced engineers and continuously develop your expertise


• Meaningful impact through technology that helps fight financial crime

YOUR ROLE

• Design, develop, and maintain backend services using Java


• Build scalable and reliable solutions for an enterprise-grade platform


• Improve system performance, reliability, and scalability


• Work with large volumes of data across distributed systems


• Investigate complex production issues and implement sustainable solutions


• Contribute to the evolution of backend architecture and technical practices


• Collaborate closely with engineers within your Agile team


• Take ownership of features and technical solutions from development through production


• Help ensure the platform remains stable, performant, and ready to scale

IF YOU ARE A PERSON WHO

• Has strong commercial experience in Java backend development


• Has experience building and running production-grade software


• Understands distributed systems and scalable backend architecture


• Has experience working with large volumes of data


• Is comfortable working with cloud-based systems


• Takes a structured and analytical approach to complex problems


• Enjoys investigating production issues and finding their root causes


• Has experience working in Agile environments


• Can work independently while collaborating effectively with other engineers


• Takes ownership and is motivated by delivering high-quality solutions

Nice to have:

• Experience with Spring Boot


• Knowledge of Kafka or similar messaging systems


• Experience with Docker and Kubernetes


• Knowledge of SQL databases


• Familiarity with monitoring and observability tools such as Grafana


• Experience with Python, TypeScript, or Angular


• Exposure to Spark, Elasticsearch, or StarRocks

Congrats! If you're ready to use your Java expertise to build reliable systems at scale and contribute to technology that helps global financial institutions fight financial crime, this role is ideal for YOU!