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Backend Java Web Developer

Spark Universe is looking for a talented java web developer to join our small and passionate team working on the Essential Mod.

What you’ll do

  • Work closely with our product and design teams to design, develop, and deploy cutting-edge Java web applications using our tech stack.
  • Proactively identify challenges, think critically, and offer innovative solutions rather than waiting for directions.
  • Develop robust and scalable microservices, ensuring reliable communication and fault tolerance.
  • Design and maintain database systems, ensuring efficient, scalable, and secure data storage and retrieval acrosss MongoDB, Redis, Cassandra, PostgreSQL, and Timeseries Databases.
  • Implement and maintain monitoring tools like Grafana, Loki, and Prometheus to ensure our applications run smoothly.
  • Write and maintain test cases for Java code to ensure software reliability and robustness.
  • Participate in code reviews, ensuring the quality and maintainability of our codebase, and encouraging knowledge sharing within the team.

Your background

  • Strong proficiency in Java, along with the related libraries and frameworks Git and Maven.
  • Strong proficiency in Web Development.
  • Proven experience in testing, familiar with tools like JUnit, Mockito, PowerMock, Spock, etc.
  • Proven experience in developing microservices and RESTful APIs.
  • Extensive experience with MongoDB, Redis, Cassandra, PostgreSQL, and Timeseries Databases.

Desired traits

  • Experience working with Guice, Guava, Caffeine, Javalin, Avaje, Gson, Retrofit, OkHttp, the Spring Framework, and more.
  • Ability to tackle complex technical challenges with a logical and systematic approach.
  • Excellent collaboration skills, with the ability to work effectively both in a team and independently.
  • Willingness to adapt in a dynamic work environment; learn and implement new technologies and techniques as the business demands.
  • Deep commitment for writing clean, well-documented, and highly effective code.

What we offer

  • Work with a team of forward-thinkers, utilising the latest technologies to drive innovation.
  • Continuous learning and growth opportunities with access to necessary learning materials.
  • Remote-friendly culture, with flexible hours to ensure a positive work-life balance.
  • A diverse and inclusive environment where every voice matters, and every contribution is valued.
  • A negotiable starting rate of $25 to $30 USD per hour (freelance).

How to apply

Please send your applications via email to, and make sure to include the following details:

  • Your full legal name
  • Your country and time zone
  • Your age
  • Link(s) or download(s) to your portfolio (GitHub, resume, etc.)
  • Tell us a little bit about yourself, your path so far, and what you wish to accomplish
Apply now
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