Senior Java Developer

Vyntra; Warszawa; Hybrid; PLN 180,000 - 240,000; Full time

Benefits offered by this job

Hybrid work model

Warsaw office

Production-ready systems experience

Collaborative environment

Job summary

Vyntra in Warsaw is seeking a Senior Software Developer (Java) to join the Financial Crime Product Development team. You will design and develop backend services in Java within a small, autonomous agile team, building and maintaining an enterprise-grade platform used by global banks to detect fraud and financial crime.

You will work with large volumes of transactional data in distributed systems, improving performance, reliability and scalability, and collaborating closely with other engineers

Qualifications

• Strong experience with Java in backend development.
• Experience with distributed or cloud-based systems.
• Good analytical skills and structured approach to problem solving.
• Experience working in agile development teams and clear communication.

Responsibilities

• Designing and developing backend services in Java
• Improving performance, reliability, and scalability
• Investigating production issues and delivering long-term solutions
• Working with large data volumes in distributed systems
• Collaborating closely with other engineers in your team

Skills

Java backend

Distributed systems

Agile development

Communication

Problem solving

Tools

Spring Boot

Kafka

Docker

Kubernetes

SQL databases

Grafana

Elasticsearch

Spark

StarRocks

Python

TypeScript

Angular

Job description

*Please note: we are only able to consider candidates who already have the right to work in Poland. Visa sponsorship is not available for this role.*

Senior Software Developer / Java

Hybrid working, based in our Warsaw office, 2 days per week on site

Vyntra builds software that helps banks and financial institutions detect fraud, prevent money laundering, and understand transactions at scale.

Our platform processes large volumes of transactional data in real time, combining search technology and AI to provide clear, actionable insights.

The role

You will join our Financial Crime Product Development team as a Software Developer or Senior Software Developer (Java).

Working in a small, autonomous agile team, building and maintaining backend services that are part of a large, enterprise-grade platform used by global banks and making a real difference to the impact of fraud and financial crime.

Your work will include:

• Designing and developing backend services in Java
• Improving performance, reliability, and scalability
• Investigating production issues and delivering long-term solutions
• Working with large data volumes in distributed systems
• Collaborating closely with other engineers in your team

The role level (Software Developer or Senior) will depend on your experience and technical impact.

What we’re looking for

You have experience building and running production systems, and you are comfortable working independently on complex problems.

You have:

• Strong experience with Java in backend development
• Experience with distributed or cloud-based systems
• Good analytical skills and a structured approach to problem solving
• Experience working in agile development teams
• Clear and practical communication skills

You also have experience with, or interest in, some of the following technologies:

• Spring Boot
• Kafka (or other messaging systems)
• Docker and Kubernetes
• SQL databases
• Monitoring and observability tools (for example Grafana)

Experience with Python, TypeScript, Angular, Spark, Elasticsearch, or StarRocks is a plus, but not required.

Why join Vyntra

• Join a close-knit, supportive team where you can make a difference
• Work on real production systems used by major financial institutions
• Solve challenging engineering problems at large scale
• Have ownership of your work and influence technical decisions
• Learn from experienced engineers in a collaborative environment
• Contribute to technology that helps prevent financial crime