Our client is a leading provider of telecommunications solutions for mobile network operators, offering tailored products and turnkey solutions for MVNO and MVNE services. They are known for their rapid time to market, high-quality offerings, professional project deployment, exceptional customer support, and cost-effective solutions. Their product suite emphasizes pre- and postpaid services, online charging, voice, and messaging functions, and stands out for its flexibility, scalability, robustness, and competitive pricing.ResponsibilitiesCollaborate with the R&D team in Vienna/Austria headquarters remotely while working in the office in Barcelona, Spain.Develop and maintain software solutions for the company OSS platform.Utilize SS7 Stack Protocols (CAMEL / MAP) and Media Protocols (SIP / RTP) in software development tasks.Implement Interfaces such as Web Services, REST APIs, and Client-/Server communication.Participate in software design and data modeling activities.Ensure the quality of software through module tests and support acceptance tests.Document software solutions effectively.Communicate and coordinate with team members and stakeholders.Maintain a high level of organization and structure in work processes.Collaborate with cross-functional teams to achieve project goals.Maintain strong relationships with the Vienna/Austria headquarters R&D team.Requirements:Technical High School or university degree in information technology, telecommunications, or a related field.5 years of professional experience in software development.Strong Software development skills.Familiarity with SS7 Stack Protocols (CAMEL / MAP).Knowledge of Media Protocols (SIP / RTP).Experience with Interfaces, including Web Services, REST APIs, and Client-/Server communication.Ability to handle software design and data modeling.Quality assurance/testing skills, including module tests, support for acceptance tests, and handover to production and operations.Proficient in software documentation.Excellent communication skills.Strong organizational skills and structured working habits.Language skills: English (German is an advantage).Location : Office in Barcelona, Spain, with the possibility of remote work, maintaining a strong connection with the Vienna/Austria headquarters R&D Team.#J-18808-Ljbffr