We are seeking an experienced Telecom Core Network Architect with proven Solution / Software Architect deep expertise in mobile networks, software design, and cloud-native architectures. This role combines advanced telecom systems knowledge with software engineering skills, focusing on building scalable, high-performance systems in a virtualized and hybrid cloud environment. The successful candidate will serve as a technical leader and evangelist, collaborating across development, QA, and operations teams globally to deliver innovative solutions.     Key Responsibilities:   Telecom Core Network Architecture Architect and optimize mobile core network systems, including OSS/BSS platforms, Prepaid/Postpaid Billing, HSS/HLR, UDM, PCRF, AAA, etc. Design and implement scalable solutions for mediation platforms, fraud management systems, and network elements (e.g., MMSC). Leverage expertise in protocols like Diameter, SS7, SIP, HTTP/2, REST, SOAP, and LDAP to ensure robust communication frameworks. Conduct end-to-end assessments of infrastructure solutions and create strategies for cloud-native or hybrid deployments. Provide guidance on transitioning legacy network systems to VNF, CNF, and microservice-based architectures.   Software Architecture and Development: Lead the design and implementation of software systems using microservices and containerized architectures. Build and manage CI/CD pipelines using tools like Git, Jenkins, or similar platforms. Develop and debug APIs, focusing on Cloud API integration and microservice orchestration. Architect and deploy applications in virtualized and containerized environments using OpenStack, Kubernetes, and OpenShift. Oversee software development efforts using languages like Java, C, Python, Ruby on Rails, React, and Golang, ensuring high automation and maintainability.   Presales and Thought Leadership Responsibilities: Collaborate with sales teams to engage with clients, understand technical requirements, and address business challenges through tailored solutions. Respond to RFPs, RFIs, and technical queries, preparing comprehensive technical proposals, including solution designs, architecture diagrams, and effort estimates. Develop and deliver impactful technical presentations, solution demonstrations, and proof-of-concept (POC) implementations to showcase capabilities. Conduct technical workshops and discovery sessions with customers, aligning solutions with business objectives and ensuring customer satisfaction. Act as a technical advisor, articulating the value and differentiation of proposed solutions and building strong customer relationships to drive solution adoption. Provide feedback to product teams based on customer needs to influence roadmaps and feature development. Stay updated on market trends, competitor offerings, and customer challenges to guide solution positioning and differentiation strategies. Lead thought leadership efforts by authoring white papers, blogs, and research articles on emerging trends in telecom and cloud-native architectures. Represent the organization at industry events, conferences, and webinars to share insights, build brand visibility, and establish industry leadership. Participate in industry forums and standards bodies (e.g., 3GPP, ETSI, TM Forum) to influence evolving frameworks and stay informed of changes. Mentor internal teams through workshops, technical sessions, and knowledge-sharing initiatives to foster innovation and continuous learning.   Cloud and Virtualization: Design hybrid and cloud-native solutions leveraging platforms like Kubernetes, AWS, Azure, Google Cloud, or OpenStack. Implement virtualization and containerization strategies, ensuring optimal performance, scalability, and security. Develop Elastic/Open Search-based solutions and implement database strategies using relational, LDAP, and NoSQL databases like MongoDB and Cassandra.   Leadership and Collaboration: Act as a technical evangelist for core network and software solutions, mentoring teams and fostering innovation. Collaborate with cross-functional global teams, including development, QA, and operations, to achieve project objectives. Maintain up-to-date knowledge of industry trends, emerging technologies, and frameworks to ensure continuous improvement.   Troubleshooting and Problem Solving: Analyze system issues with strong diagnostic and troubleshooting skills in Linux environments (RedHat/Ubuntu). Address networking-related challenges, including DNS, TCP/IP, and HTTP(S). Manage time effectively, ensuring priorities align with project goals and deadlines.   Qualifications: Education: Bachelor’s or Master’s degree in Computer Science, Telecommunications, or a related field.   Experience: 12+ years of experience in mobile networks and telecom systems architecture. 12+ years of experience in software development and cloud-based architecture design. Hands-on experience with Kubernetes and virtualized environments.   Technical Skills: Expert knowledge of OSS/BSS systems, CRM, billing platforms, and network elements like AAA, UDM, and HLR. Strong programming skills in Java, Python, Ruby, Golang, and React. Extensive experience with CI/CD, container orchestration, and cloud-native tools. Deep understanding of telecom and cloud protocols (e.g., Diameter, SS7, SIP, LDAP).   Soft Skills: Strong analytical skills to identify and resolve complex problems. Excellent communication and organizational skills. Leadership abilities to manage cross-functional teams and act as a technology evangelist. About R Systems: WE SPEAK DIGITAL.OverviewFormerly known as Computaris, we are the European branch of R Systems - 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.Our clients choose to partner with us for Cloud transformation, automation, data science, analytics, and product engineering, thanks to our technical expertise, domain knowledge, global presence and a record of delivering world-class solutions consistently for over 28 years.With a global workforce of 4,800+ employees spread across 16 delivery-centers and 26 offices, we continue to empower organizations with cutting-edge technologies. In Europe, R Systems has offices in the UK, Romania, Poland, Moldova and Switzerland, providing digital transformation services and extensive telecom expertise.