At Cellusys, you'll find more than just the spirit, energy, and vision of a high-tech startup. Cellusys has become a leader in developing and delivering an innovative portfolio of solutions for mobile network operators. Our systems helps networks manage SMS Spam and Roaming subscribers. Since its founding, Cellusys has enabled Mobile Networks around the globe reduce costs, generate new revenue as well as enhance and improve the entire customer lifecycle experience.

So what's it like to work at Cellusys? As soon as you enter our Georgian offices in the heart of Dublin, you know you're not in any typical high tech company. You are surrounded by colleagues who have already made a big impact on the industry and are intent on continuing to do so. They're entrepreneurial, autonomous, wired for success, and yet they're also professional, solution-driven, unpretentious and collaborative.

Everyone at Cellusys shares a number of common qualities. People at Cellusys are demonstrated experts in their fields. Their backgrounds prove their passion for achievement. They've come to Cellusys because they want to work with highly respected, intelligent, and collegial peers, in a company that enjoys a strong pedigree of innovation - and that still notices a job well done.

Sound like a fit? For more information, see our current opportunities for Technical Architects, Telecoms Software Engineers and SS7 Experts.

Technical Architect - Dublin, Ireland

Cellusys is looking for a very bright, hightly motivated engineer to help design and develop highly sophisticated Mobile Telecoms Software. Candidates must be able to work in a team and critically keeping up with the state developments of the art in mobile technologies.

Requirements:

* BSc in Computer Science or Mathematics.
* MSc/PhD in any Engineering related field.

Subject Matter Expert in the following protocols
* ITU SS7: MTP, SSCOP, SSCF, ISUP, TUP, SCCP, TCAP, MEGACO (H.248)
* Sigtran: SCTP, M2PA, M3UA
* ETSI/3GPP SS7: GSM MAP, CAMEL, BSSMAP
* ANSI SS7: MTP, ISUP, SCCP, TCAP, ANSI41-D MAP
* IETF/Packet Cable: MGCP, TGCP, NCS
* Class 5 Access Protocols: T1/E1CAS, GR303, V5.2, TR-08
* SS7/SMS Security
* SMS delivery and off-load capabilities
* Class 5 Switches (Lucent, Ericsson, Nortel, Siemens, Huawei others)
* MSC/VLR/HLR/SCP/Gateways (Lucent, Nortel, Huawei, ZTE)
* SoftSwitches / Media Gateway Controllers, Media Gateways, Trunking Gateways
* STP (Alcatel, PT, Ericsson, Siemens, Tekelec, Cisco IPT, others)
* SS7 protocol analysis (such as Techtronix / INET spectra, Catapult MGTS, HP BSTS, etc.)
* T1/E1 and BERT test sets (such as Sunset, BTM10, etc)
* Grooming equipment (such as DACS)
* Network probes (such as GeoProb, WireShark, etc.)
* Excellent problem solving skills.

No agencies please.

Email: careers@cellusys.com

Senior JAVA Software Engineers - Dublin, Ireland
No agencies please.

Cellusys is looking for a bright, motivated developer to develop innovative mobile applications for for Mobile Telecoms Software. Candidates must be able to develop easy-to-use applications for complex business tasks while keeping up with the state of the art in mobile technologies.

Requirements:
* Five years of commercial software development experience.
* BSc in Computer Science or Mathematics.
* Programming skills in Java/J2EE, including experience in JSP, web applications, Servlets, and custom tag libraries.
* Experience developing using object-oriented UI design (MVC, Spring, etc.).
* Ability to work with a variety of others including other developers, designers, product managers, technical writers, marketers, technical support personnel, and customers in a cooperative but fast-paced environment.
* Excellent software architecture, implementation, and problem solving skills.
* Familiarity with standard professional software development processes including source code control, unit testing, and code reviews.

Additionally, ideal candidates will have experience with:

* SMS, MMS, SS7, MM7, Sigtran, 3GPP and VOIP.
* Developing packaged software (as opposed to professional service engagements)
* Spring, Hibernate,
* Eclipse plug-ins
* SQL database and Java object-relational DB mapping.
* Teracotta, IBM WebSphere or BEA WebLogic.

careers@cellusys.com

JAVA Software Engineers - Dublin, Ireland

Cellusys need very bright engineers to develop innovative mobile applications for Mobile Telecoms Software. Candidates will learn to develop easy-to-use applications for complex business tasks while keeping up with the state of the art in mobile technologies.

Requirements:
* One year of commercial software development experience.
* BSc in Computer Science or Mathematics.
* Programming skills in Java/J2EE, including experience in JSP, web applications, Servlets, and custom tag libraries.
* Experience developing using object-oriented UI design (MVC, Spring, etc.).
* Ability to work in a team.
* Excellent problem solving skills.

No agencies please.

careers@cellusys.com