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Salary
≈ $54k – $90k per year (Estimated)
Location
In office (Wrocław)
Seniority
Senior · 5+ years exp
Employment
Full-Time

Confirmed on the employer's own hiring board on Oct 11, 2026. First seen by Alion on Oct 9, 2026.

Overview
Company
Impact
Profile match
Madiff is an IT consulting and staff augmentation company that provides remote agile teams, nearshore development teams and individual IT contractors to enterprise clients, with most of its hiring run from Warsaw. It works across retail, banking and insurance, telecom and media, automotive, energy, transportation and life sciences, recruits consultants in Poland and Portugal and sells its services into the UK, Ireland, France, Switzerland, Northern Europe and the US. Its openings cover .NET and full stack developers, data engineers and data scientists, AI architects, system and business analysts, QA testers, project managers and IT sales staff.

We are looking for a Senior Java Developer to join a long-term banking programme focused on developing and modernising enterprise backend systems. The role involves designing and building scalable backend services using Java 17+, Spring, and Kafka, working with distributed systems, relational and non-relational databases, and contributing to the continuous improvement of business-critical applications in an Agile environment.

Responsibilities

  • Design and implement backend services using Java 17 or newer
  • Develop applications using hexagonal architecture and clean design principles
  • Build and maintain Spring based services, including Spring MVC and Spring Data
  • Design event driven integrations using Apache Kafka
  • Work with relational databases such as MS SQL and Oracle
  • Work with non relational technologies such as Elasticsearch and Redis
  • Analyse system functionality from performance, stability and security perspectives
  • Produce clean, maintainable and well tested code
  • Participate in technical design discussions and architecture decisions
  • Support code reviews and engineering standards
  • Plan and execute testing independently
  • Cooperate with analysts, architects and other delivery teams
  • Contribute to documentation and technical design materials

Requirements

  • Minimum 5 years of commercial Java development experience
  • Strong experience withJava 17+
  • Strong knowledge ofSpring Framework, especiallySpring MVC andSpring Data
  • Experience with object oriented design patterns
  • Experience designing and developing systems usinghexagonal architecture
  • Strong knowledge of relational databases such asMS SQL orOracle
  • Experience with non relational technologies such asElasticsearch orRedis
  • Practical experience withApache Kafka
  • Strong analytical and problem solving skills
  • Ability to work independently and take ownership
  • Experience working in Agile or Scrum teams
  • English at minimum B2 level

Nice to have

  • Experience withAzure
  • Experience withDocker andKubernetes
  • Experience preparingHigh Level Design documentation
  • Knowledge ofJavaScript,React or Python
  • Banking or financial services experience
  • Experience with large scale enterprise systems
  • Experience with performance optimisation and secure application design

Benefits

  • Solid, competitive salary
  • Work in a multinational environment on international projects
  • Comprehensive healthcare
  • Long-term B2B contract with a stable project pipeline
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