Senior Software Engineer - Java

Job description

About Gapstars

Gapstars is the Netherlands and Sri Lanka-based software development services provider for innovative tech companies. Today, we are home to 100+ Techstars and innovative minds turning scalable software into performance products shaping the future. Our partners are highly ambitious tech companies that are looking to conquer their respective markets.

The Role

At Gapstars, our goal is to fuel growth for highly ambitious tech companies with world-class tech talent. If you are an experienced and ambitious Senior Java Engineer with strong programming fundamentals and the ability to adopt new frameworks as needed we want to hear from you.

As a Senior Java Engineer, you will be expected to architect, develop and release user-facing features and ensure the quality of our product continues to serve the needs of our tens of millions of users.

Join top ambitious developers

We hire only top developers with a knack for clean code, a product-first mindset, and great communication skills. Our people love fulfilling their passion at Gapstars and the Great Place to Work Institute ranks us in the top 10. Want to join the team.


  • University degree in IT or mathematics
  • Oracle Certified Java Developer (OCP) or equivalent.
  • Minimum 3 years of relevant experience with Java SE/EE
  1. Java SE 8+
  2.  Java EE 6+, EJB3, JMS, JAX-RS
  3. Hibernate, JDBC, JPA
  4. Junit, TestNG, DBUnit, Arquillian
  5. Eclipse
  • Experience with continuous integration through the latest build/process/version
  • control systems:
  1. GIT
  2. Maven / Nexus
  3. SonarQube
  4. Jenkins
  • Experience with project design methods / Design patterns
  1. UML
  2. MVP
  3. SOA, Microservices
  • Experience with KanBan / Scrum / Agile software development
  • Experience with SaaS (models)
  • Knowledge of application integration:
  1.  RabbitMQ
  • Experience with databases
  1. Oracle
  2. Postgresql
  • Windows, Linux
  • Good command of English in writing and speaking
  • Flexibility in working hours
  • Outgoing, entrepreneurial, independent and good communication skills


  •  Experience with Wildlfy, Tomcat or Apache
  •  Experience with Angular
  •  Experience with GIS / Geometry