Software Engineer (m/f/d) – Go / Cloud-Native IMS

TLDR

Develop high-performance Go applications and optimize distributed systems in a cloud-native environment while contributing to next-gen mobile network infrastructure.

About us

About Us 

Committed to building the next generation of 100% software-based mobile networks, ng-voice combines DevOps with telecommunications expertise. We are creating innovative mobile infrastructure solutions, making them accessible for operators and enterprises that want to deploy future-proof, cloud-native networks. 
We're hiring a talented Software Engineer (m/f/d) to join our team in developing next-gen features for our IMS (IP Multimedia Subsystem) solution. You will build high-performance Go applications, optimize distributed systems, and improve operational efficiency in a cloud-native environment.

Tasks

What You’ll Do 

  • Next-Gen IMS Development:Develop and scale features for our IMS solution usingGo (Golang), following a test-driven development (TDD) approach.
  • Core Network Logic: Work across the full spectrum of IMS nodes (P/S/I-CSCF,MMTel, etc.), transitioning legacy signaling patterns into high-performance Go services.
  • Protocol Implementation: Handle signaling and media protocols (SIP, Diameter, RTP) directly within Go-based micro-services.
  • System Optimization: Perform deep-track testing, validation, and optimization to ensure low-latency performance and high-quality deliverables.
  • Standards Alignment: Interpret3GPP specifications and implement them to ensure our IMS solution remains industry-compliant and interoperable.
  • Cloud-Native Operations: Work with a modern stack including Kubernetes, Redis, MySQL, and Prometheus build resilient, self-healing network functions.

Requirements

Our Ideal New Colleague 

  • Strong Go Proficiency: Deep experience in Go (Golang) is required, specifically with con currency patterns (go routines/channels) and performance tuning.
  • Telephony & Signaling: Solid understanding of telephony standards, specifically SIP and Diameter.
  • Systems Expertise: Very comfortable working in Linux environments and understanding low-level networking (TCP/UDP/SCTP).
  • Scripting: Knowledge of Python or Bash for automation and tooling.
  • Problem Solver: Strong analytical skills with the ability to debug complex distributed systems.
  • Mindset: Self-motivated, autonomous, and able to thrive in a fast-paced, hybrid-remote startup environment.
  • Communication: Proficiency in English.

Benefits

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 classbenefitand wellness benefit (for full-time employees)
  • Home office budget (for full-time employees)

Benefits

Flexible Work Hours

Flexible working that suits you - we live and breathe a hybrid remote culture and don't mind where and when you work

Home Office Stipend

Home office budget (for full-time employees)

Mobility, fitness, language, and wellness benefits

Mobility benefit, fitness benefit, language class benefit and wellness benefit (for full-time employees)

ng-voice GmbH builds innovative, software-based mobile network infrastructure solutions that empower operators and enterprises to deploy future-proof networks. By focusing on accessibility and collaboration, ng-voice is transforming how mobile networks are designed and implemented.

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