Customer Solutions Architect – IMS / 4G / 5G Core (f/m/d)

About us

Committed to building the next generation of 100% software-based mobile networks, ng-voice creates innovative mobile infrastructure solutions for operators and enterprises deploying future-proof networks.

We are growing our team and are looking for a Customer Solutions Architect with a strong focus on IMS and 4G/5G core networks. In this role, you will combine deep technical expertise with customer-facing responsibilities, working closely with our sales, deployment, and engineering teams to design and deliver modern voice core solutions.

Tasks

What you will do  

• Act as a technical solution architect for IMS-based voice platforms across customer engagements 
• Understand customer requirements and translate them into end-to-end solution architectures (HLD/LLD) 
• Design and validate IMS / Voice Core solutions, including integrations across multi-vendor environments 
• Lead technical workshops and discussions with customers and partners 
• Define solution scope, assumptions, and dependencies, and own the solution end-to-end 
• Support both pre- and post-sales activities from a technical perspective 
• Work closely with deployment and engineering teams to ensure successful implementation 
• Act as a trusted advisor to customers, including the ability to challenge requirements where needed 
• Contribute to technical documentation such as solution designs, proposals, and project plans 
• Travel to customer sites occasionally when required 

Requirements

What we are looking for

• 6+ years of experience in telecommunications, with a strong focus on IMS / Voice Core technologies 
• Hands-on experience with IMS integrations in real-world environments (vendor or operator side) 
• Strong understanding of 4G / 5G core architecture and IMS design 
• Deep knowledge of signalling protocols such as SIP and Diameter 
• Proven experience in solution architecture (HLD / LLD) and end-to-end system design 
• Ability to work in multi-vendor environments and complex telecom ecosystems 
• Experience working with customers directly, including workshops and technical discussions 
• Strong communication skills with the ability to explain complex technical concepts clearly 
• Ability to work independently, take ownership, and drive topics without close supervision 

 
Nice to have

• Experience working with MNOs, MVNOs, or private network providers 
• Background on vendor or operator side
• Experience with cloud-native technologies (Kubernetes, Docker) 
• Understanding of virtualization and cloud environments 
• Experience supporting pre-sales or consulting activities 

 
Tech stack
Kamailio, Kubernetes, Docker Swarm, Rancher, Ansible, Puppet, Redis, MySQL, SIP, RTP, Diameter, C, PHP, Bash, Go, StrongSwan, FreeSWITCH, Asterisk
 
 

Benefits

A little more about our culture and why you should join

• Work-Life-Balance is a priority: Flexible working that suits you - we live and breathe a hybrid remote culture and don't mind where and when you work    
• We are committed to building a diverse team that represents a variety of backgrounds, perspectives, and skills in a traditionally not very diverse industry   
• We offer you the culture of a fast-growing start-up with the maturity of an enterprise company
• We are more interested in your experience and knowledge than formal degrees 
• Entrepreneurial culture and flat hierarchies   
• Mobility benefit, fitness benefit, language class benefit and wellness benefit (for full-time employees)
• Home office budget (for full-time employees)

Do I need to meet all the technical requirements to apply?
At ng-voice we are truly passionate about building a diverse team, so we encourage everyone to apply to give us a chance to learn more about yourself and your aspirations; the above description has been compiled on 'idealities', but overall, we're keen to learn about yourself and the value you can bring to ng-voice.
ng-voice is proud to be an equal opportunity workplace and is an affirmative action employer. We are committed to equal employment opportunity regardless of race, color, ancestry, religion, sex, national origin, sexual orientation, age, marital status, disability, gender identity or Veteran status.
 
We look forward to hearing from you!