Upstream is hiring a

Senior Java Developer

Athina, Greece

Upstream is leading the mobile internet revolution in high growth markets. Its pioneering platform provides 1.2 billion people in developing countries with affordable and secure access to digital services on their mobile devices. Upstream’s Zero-D service provides free access to the internet essentials to 250 million mobile users in Latin America and Africa even when they have run out of data. The company’s Secure-D service is a leading anti-fraud platform that in 2018 alone, detected 30 million mobile phones infected with malware in 16 counties. Upstream works with over 60 mobile operators, across more than 45 markets, leveraging their unique assets to boost and create new revenue streams in the data era. Its team counts 280 people of over 25 nationalities, working from nine offices around the globe.

The role

We are looking for an enthusiastic Senior Java Developer to join our Software Development team in Athens, Greece.

As a Senior Java Developer you will be part of a very competent team that works on mission – critical applications contributing in all phases of the development process. You will be responsible for Java/Java EE application development, supporting business objectives while providing expertise in full software development lifecycle, from concept and design, to testing.

Your main responsibilities will be:

  • Write well designed, testable, efficient software modules.
  • Ensure designs are in compliance with specifications and that specifications cover all needed aspects of the implementation.
  • Prepare and produce releases of software components.
  • Provide support for production systems.
  • Create/ review design documentation and provide feedback on test plans.
  • Support continuous improvement by investigating alternatives and technologies and presenting these for architectural review.
  • Support and coach junior developers.

Requirements

The skills we require:

  • BSc/MSc in Computer Science, Engineering or equivalent.
  • 5+ years of full time professional Java Development experience is required.
  • Hands on experience in designing and developing applications using Java SE / EE platforms.
  • Object Oriented Analysis and Design.
  • Experience with popular Java frameworks and technologies such as Spring Framework, JPA/Hibernate.
  • Experience with asynchronous messaging technologies (e.g. JMS).
  • Excellent knowledge of SQL.
  • Familiarity with build tools such as Maven.
  • Proficient understanding of Git and its workflows.

The skills we prefer:

  • Familiarity with Spring Boot.
  • Experience with RabbitMQ, Kafka.
  • Familiarity with Continuous Delivery principles.

You will be an excellent fit for our team if you are:

  • Strong team player with good communication skills.
  • Eager to work with leading-edge technologies.
  • Reliable and dedicated professional with clear thinking and strong attention to detail.
  • Able to work well under pressure and meeting deadlines in sometimes challenging situations.
  • Able to multitask and thrive in a dynamic environment as well as balance and prioritize activities to ensure critical items are addressed.

Benefits

We offer a competitive base salary and benefits, directly dependent on the candidate’s qualifications and skills. The real excitement comes from working closely with a dynamic, smart, agile and highly motivated team in a competitive and fast paced environment.

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Upstream is an equal opportunity employer. The Company does not discriminate on the basis of race, colour, creed, pregnancy, religion, gender, national origin, age, disability, marital, or any other legally protected status. The Company also makes reasonable accommodations for disabled employees. Finally, the Company prohibits the harassment of any individual based on their protected status. This policy applies to all areas of personnel actions including recruitment, hiring, training, promotion, compensation, benefits, transfer, and social and recreational programs.

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