Backend Engineer (Java, Scala, Spark)

Salary:

Mid Developer: up to 1120 PLN/MD on B2B

Senior Developer: up to 1500 PLN/MD on B2B

Work model: hybrid, for the first 3-4 months required 3 days/week on-site in Southern Sweden, with travel and accommodation covered by the company, followed by relocation to Sweden with a requirement to work 3 days per week from the office, along with a rate evaluation after relocation.

Why choose this offer?

Opportunity to work on global-scale products used by millions of users worldwide
Collaboration within international, cross-functional teams
Exposure to modern backend technologies (Scala, Java, Spark)
Chance to build scalable APIs and developer-facing tools
Impact on end-to-end feature development – from concept to production
Work in an environment that values ownership, independence, and collaboration

Project

You will join a team working on a developer platform powering advanced digital products and services. The role focuses on building scalable backend solutions, APIs, and tools that support large-scale applications and external developers.

As a Backend Engineer, you will contribute to designing and implementing distributed systems, processing large datasets, and enabling seamless integration between services. You will collaborate closely with engineering, data, and product teams to deliver high-quality solutions used in a global ecosystem.

The role combines hands-on development with active participation in architecture discussions, problem-solving, and cross-team collaboration.

Responsibilities you'll have:

Design, develop and maintain scalable backend systems and services
Build and optimize data processing pipelines using tools such as Apache Spark
Develop and maintain APIs and backend components for developer-facing platforms
Translate business and technical requirements into robust, high-quality code
Collaborate with cross-functional and international teams (engineering, product, data)
Participate in architecture discussions and propose improvements to system design
Ensure performance, reliability, and scalability of delivered solutions
Contribute to code reviews, testing, and CI/CD processes
Work both independently and collaboratively to solve complex technical problems

Technologies you'll work with

Java
Scala
Apache Spark
Distributed systems & data processing
API design & backend architecture

Client – why choose this particular client from the Jit portfolio?

Our client is a leading multinational technology organization with a strong international presence. Serving customers worldwide, it offers a broad range of consumer electronics, software, and digital solutions aimed at enhancing user experience and connectivity. The organization is renowned for its innovative approach and its ability to create a seamless ecosystem that integrates its products and services.

About Jit Team

The Human Factor of IT - it’s not just a slogan, it’s a philosophy. The foundation of Jit Team is people, which is why we prioritise you. We employ over 770 experienced experts, to whom we offer developmental projects, a wide range of benefits, and a proprietary professional development programme. Together with clients from around the world, we create innovative IT solutions delivered by highly specialised and efficient teams.

Behind our maxim are also charitable and educational activities. We support schools, universities, and educational institutions by conducting workshops, running educational projects, sponsoring events, and donating learning equipment. We offer internships that help launch careers in IT. We support water rescuers and hospitals by providing the necessary equipment. We also support numerous charitable organisations helping people in need, children, and the elderly. We are a Polish company and we share what we have achieved over more than 15 years of activity. By supporting local initiatives, we contribute to the circulation of good energy.