Posted: 3 months ago | Viewed: 214 times

Java Engineer

Key skills required: Java


iSun AG specializes in business, data processing, web development, and design. We are building advanced, reliable, secure products with a great customer experience for the users. We always keep close cooperation with our clients to ensure long-lasting relationships. Our team is growing and we are looking for Java Engineer.

Main task:

  • Enhance micro-services on Spring Boot;
  • Engineer micro-service;
  • Performance profiling and optimizations;
  • Develop high-load and high-efficiency algorithms to deal with real-time data;
  • Take part in on-call shift rotations.

Mandatory development skills:

  • Java 11 + experience;
  • Experience with JAVA more than 5 years;
  • Strong understanding of Java - Collections Framework;
  • Java concurrency and Reactor;
  • Spring Framework, experience not less than 5 years;
  • Spring Boot 2.4;
  • Spring Cloud;
  • Brotobuf. AVRO hand-on experience;
  • Experience working with JPA/Hibernate and Jooq;
  • Understanding of Groovy and meta-programming;
  • Swagger and API documentations;
  • Experience of designing REST interfaces and WebSockets APIs;
  • Experience of working with JWT and claims;
  • Experience with Kafka and KStreams;
  • Gradle (groovy/kotlin DSL);
  • Docker and Docker-Compose hands-on experience;
  • Experience with HELM and Kubernetes;
  • Spock and Junit.

Preferable development skills:

  • Understanding of DTLs like Ethereum or NODEOS;
  • C++;
  • Kotlin;
  • JavaScript/TypeScript;
  • NPM and Node;
  • Experience with Azure DevOps;
  • Google Cloud;
  • Hikari Consul and Vault;
  • ELK;
  • Spark.

Architecture skills:

  • Understanding of Service Mesh;
  • SOLID;
  • KISS;
  • CAP;
  • Big O principles;
  • Consensus and quorum algorithms.


  • Git(Git-Flow);
  • Jira;
  • Profilers/Debuggers;
  • Kibana.

We offer:

  • Work in young and successfully growing Fintech company;
  • Office location in the city center;
  • Possibility to initiate and implement solutions;
  • Interesting experience and growth;
  • Salary, depending on your experience (4100 – 7400 EUR before taxes).

Required Skills

Java 5-6 years
Java Engineer

Java Engineer

100% response rate

About the assignment:
Vilnius, Lithuania
Rate (after tax)
€2500 - 4500/Month
Full time position
Expire On
(1 week from now)

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