Lead Core Network and Software Architect

R Systems is searching for an experienced Telecom Core Network Architects to join our team of innovators!

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

Your contribution:

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.

Bring along:

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.

What's in it for you:

Hybrid work policy
A hybrid work policy, to promote and improve work-life balance! We’ll also provide the proper work equipment to ensure there is no digital barrier you can’t break.
Health coverage
Stay healthy and feel always in safe hands with full access to private medical subscription.
Professional development
Keep your knowledge fresh and achieve your professional goals, with free and unlimited access to Udemy online learning platform. We also provide 5 days off yearly to enjoy these courses plus, paid study holiday for bachelor students.
Building a community
If you know some awesome & talented innovators, recommend them to us and you’re in for a neat referral bonus. We also hope you’ll genuinely like us enough to stick around and enjoy our long-term contribution rewards.
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People-centered offices
Our offices are not only hip and cool, with private and co-working spaces, but also situated in central city locations, so that you can get there easily. Coming to the office is also a great opportunity to enjoy some fun activities in the company of your colleagues.
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Food for thought
To feed both your body and brain, we like to organize occasional Lunch & Learn sessions. If these leave you hungry for more, you can always enroll in our mentoring & coaching sessions.
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Healthy rivalry
Running shoes are not included in your welcome kit, but you may need to get a pair ASAP because we take our (inter)company sports competitions very seriously. And if you're competitive but sports are not your forte, you can always join our hackathons or reading marathons.
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A chance to give back
If you’re a charitable soul like us you’ll enjoy planting trees, baking cakes, playing chess, crafting, or donating to a cause in our social community events.
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Lots of fun
Our awesome people may be spread across many countries & cities, but we like to team up for some fun as often as we can. Be it team buildings, parties, or other team events, we take on every opportunity to meet and strengthen our sense of community.
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Who we are as a company:

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.

Some quick aspects we take pride in:
3,000+
EMPLOYEES WORLDWIDE
30
YEARS OF EXPERIENCE IN TECHNOLOGY INNOVATION ACROSS BUSINESS SECTORS
25
OFFICES IN 12 COUNTRIES IN EUROPE, US, APAC
16
DELIVERY HUBS INCLUDING CENTERS OF EXCELLENCE IN ROMANIA, POLAND, MOLDOVA
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R Systems is Great Place to Work™ certified

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