Java Developer
About the Webellian
Webellian is a well-established Digital transformation and IT consulting company committed to creating a positive impact for our clients. We are driven by shared values, strong principles, and a passion for innovative and disruptive technologies. We are a community of engineers and senior advisors who work with our clients across industries, playing a deep and meaningful role in accelerating and realizing their vision and strategy.
About the position
We are looking for a Mid Java Developer with at least 3 years of experience to join an international team working for one of our customers - a leader in the insurance industry.
As a Mid Java Developer, you will work on the development and maintenance of a server-side rendered (SSR) Java application, which constitutes the core of the system (approximately 80–90% backend/server-side logic). The frontend layer represents around 10–20% of the application and is implemented mainly to complement UI limitations of the Java server-side technology stack.
You will contribute to an internal business application integrated with multiple enterprise systems and tailored to complex insurance processes. You will collaborate with teammates located in Poland and across Europe, working closely with product owners and application users.
Key responsibilities
Development of new application features
Maintenance and enhancement of existing system components
Application testing and debugging
Application deployment and packaging (WAR-based deployments)
Writing clean, maintainable backend code
Preparing technical documentation
Proposing technical improvements and optimizations
Competencies
Java
JDBC / plain SQL (mainly Oracle database)
JAXB, XStream
Maven
Apache Tomcat (WAR packaging & deployment)
Internal engines: Kernel, PriceEngine, CalculationEngine
Nice to have
Servlets & JSP, JSTL
jQuery, CSS
T-Konfigurator (TKUI)
Experience working with SSR applications
Other requirements
Familiarity with databases
Familiarity with common enterprise application stacks
Great attention to detail
Experience with Agile/Scrum methodologies is a must
Fluency in English is a must
Excellent verbal communication skills are a must
Independence and drive to grow and learn
What we offer
Contract under Polish law: B2B or Umowa o Pracę
Benefits such as private medical care, group insurance, Multisport card
English classes available
Hybrid work (at least 3 days/week on-site) in Warsaw (Mokotów)
Opportunity to work with excellent professionals
High standards of work and focus on the quality of code
New technologies in use
Continuously learning and growth
International team
Pinball, PlayStation & much more (on-site)
Join a growing team of dedicated professionals! We love to pass on the knowledge to grow excellence, speak our minds without playing politics, and just enjoy hanging around together. If you share our passions - we want to meet you! So go ahead and apply ➡️
Java Developer
Java Developer