Gain unique telecom skills and boost your career

Take on a paid JSLEE training job and the opportunity to literally dive into telecom

R Systems JAIN SLEE Accelerator is a paid training job for Java developers to acquire a unique skill and work for the industry that impacts billions – telecom. Are you an experienced Java engineer based in Poland, Romania or Moldova? Your talent, enthusiasm and eagerness to learn are welcome onboard!

Apply before June 30, 2022 and get ready for September 2022 to take a guided dive into the world of telecom, along our very own JAIN SLEE experts. Get a deep understanding of what’s below the surface, master the technology and, as you become a JSLEE expert yourself, you’ll get the opportunity to dive in… literally. Full diving experience awaits with certified scuba instructors. 

Telecom in numbers

smartphone users globally
text messages sent every second worldwide
calls per day only in US

JSLEE in telecom

JSLEE (Java Service Logic Execution Environment) is a Java-based language for developing and deploying network services.  JAIN SLEE experts are making a real difference and working with highly sensitive tasks for the biggest players on the market.

Why join us?

For an amazing learning and career development opportunity

Because – like us – you’ll actually like it here

There's never a boring moment! 5 years later after joining R Systems, there’s always a new project to work on, new clients and new technologies to try. I love change and this fits me perfectly.
Sylwia Parafianowicz
QA Engineer

For the bunch of like-minded people doing cool things together


JSLEE is for telecom and telecom is for everyone, but not for every engineer. Mastering this niche technology will make you a highly valuable one.
Andrei Ilie
Senior Software Engineer

Build top-notch expertise

Deal with real-time, high-volume processing systems… that need to be up & running 99,999 % of the time.

Global-scale impact

Your work impacts the services used by billions of mobile subscribers globally.

Professional development 

Expand your tech portfolio with a unique skill. Be one of the few experts.

Agenda of your JAIN SLEE dive

Week 1-2
Intro and theory of telecom and JainSLEE 25%
Week 3-7
Practical training under the supervision of our JSLEE experts 80%
Week 8
Final assessment - you're ready to join and dive in! 100%

Take a full dive into telecom and JAIN SLEE with us! Continue your long-term engagement with R Systems as JAIN SLEE Engineer working on high-scale projects for some of the biggest telecom operators. 


Get in touch with us. We'd love to hear from you.

Join if

You are familiar with: Java, Linux, Git  

You have experience of at least 4 years in a commercial development environment and interest in the telecom industry 

Nice to have

OpenStack technology knowledge

Join here

Apply before June 30, 2022, by filling in the contact form below. Our recruitment team will get back to you to set up an initial HR interview call and guide you through the rest of the selection process, including online assessments and technical discussions. Based on your interview results, you’ll potentially receive an offer to join our JSLEE Accelerator program starting September 2022.  

About R Systems

R Systems is a global technology and analytics services company. We help our clients achieve speed-to-market, overcome digital barriers, and create business value with our specialized service offerings and consultative business approach.
We speak the language of business as fluently as we do the language of technology. In other words: We speak Digital. Our goal: accelerate our clients’ digital leadership.

For almost 30 years in the telecom and technology industry, we have successfully delivered over 1000 complex, high-stake projects to more than 100 operators worldwide, supporting them throughout the 2G to 5G evolution.

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