Staff / Principal Software Engineer – 5G Standalone Core
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Reach the decision-maker — $5About the role
* Department Engineering
Development * Career level
+ Expert (E1\) + Senior (IC4\) * Location
+ Berlin, Germany + Germany, Remote
**Your Role**
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As part of the larger Engineering department, the Core Network team builds and operates the heart of emnify's SuperNetwork — the mobile core that keeps millions of IoT devices connected across 180\+ countries. As we evolve our platform towards a cloud\-native **5G Standalone (SA)** core, we're looking for a hands\-on 5G SA expert to help us design, build, and run it.
As a Staff / Principal engineer with deep 5G SA expertise, you'll take technical ownership of the core network functions and roaming scenarios that make global IoT connectivity work. You'll set the technical direction for our 5G SA core while staying hands\-on — designing, implementing, testing, and troubleshooting the software components that run in production at scale. You'll partner closely with engineers across squads, share your expertise, and raise the bar for how we build cloud\-native telecommunications software.
This is a hybrid position based in emnify's Berlin office. We are open to candidates located anywhere in Germany.
**Your Impact**
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* You'll architect, design and build using AI\-agentic workflows software components for emnify’s cloud native 5G Standalone core in C\+\+, Go, or Java — implementing and operating network functions (NFs) and the service\-based interfaces between them and integrating into the overall emnify platform OSS and BSS. * You'll own 5G roaming scenarios end\-to\-end, designing and implementing the signaling and interworking that keep IoT devices connected as they move across networks and borders. * You'll help deploy and operate the 5G core at scale on AWS and Kubernetes, building for high availability, observability, and performance across regions. * You'll set technical direction and raise engineering standards across teams — mentoring engineers, reviewing designs, and driving decisions on protocols, network functions, and core architecture. * You'll troubleshoot complex, live telecommunications issues across the stack, from core network protocols down to the running service.
**What we expect**
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* Deep, hands\-on expertise with the 5G Standalone core; core specifications and core signalling protocols (e.g. service\-based interfaces over HTTP/2, Diameter, GTP\-C/U), roaming scenarios, core network protocols, and network functions (NFs). Our focus is the mobile core network domain; hands\-on experience with 5G RAN technologies is not a requirement for this role. * Experience with cloud\-native networking, service mesh, and observability for high\-throughput distributed systems. * Hands\-on software engineering is essential. You can architect/design, implement, test, and troubleshoot software components using AI\-agentic workflows. * Strong software development experience in at least one of C\+\+, Go, or Java combined with a results\-oriented mindset and readiness to work across the technology stack when needed. * Experience with large\-scale infrastructure deployment and orchestration (AWS, Kubernetes). * Proven experience running telecommunications services at scale in production.
**Bonus points:**
Background in IoT/M2M connectivity or MVNO/MNO core network operations.
**Why emnify**
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**Why it might not be a fit**
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* You have primarily worked in 5G RAN, telecom architecture, consulting, or vendor management without hands\-on experience building and operating 5G Standalone core network functions. This role requires software engineering skills in C\+\+, Go, or Java, alongside practical experience with 5G core protocols. **Your career path with us**
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**Why join our** **Engineering team?**
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### **Team \& structure**
Our engineering team is made up of engineers primarily based in our Berlin and Würzburg offices. The team is organised into cross\-functional squads aligned to product domains, bringing together backend, frontend, and infrastructure expertise.
### **Business impact**
Engineering builds and scales the platform that powers global IoT connectivity. Their work enables customers across industries—from aviation and robotics to smart cities and beyond—to connect, manage, and scale their devices reliably, while driving emnify’s growth and product innovation.
### **What you’ll work on**
You’ll tackle complex technical challenges across distributed systems, connectivity, and APIs—building scalable solutions and shipping features that have real\-world impact at global scale.
**Why join our** **Finance** **team?**
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### **Team \& structure**
Our finance team is a small, lean group primarily based in Berlin, covering FP\&A, accounting, and commercial finance. The team works closely with leadership and partners directly with departments across the business.
### **Business impact**
Finance sits at the centre of decision\-making—providing the insights that guide how we invest, grow, and scale. From supporting international expansion to shaping commercial strategy, their work has a direct impact on emnify’s trajectory.
### **What you’ll work on**
You’ll work on forecasting, budgeting, and commercial analysis, partnering with teams across the business to understand performance, challenge assumptions, and help drive smarter decisions.
**Why join our** **Go\-to\-market** **team?**
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### **Team \& structure**
Our go\-to\-market team is made up of people across four continents. Each major region—LATAM, the US, Europe, and the Philippines—has dedicated sales, customer success, and marketing specialists working closely together.
### **Business impact**
The team drives new customer acquisition, builds brand awareness, and develops strong, long\-term customer relationships. They play a key role in expanding our global presence and shaping how emnify is positioned in the market.
### **What you’ll work on**
You’ll build relationships with both new and existing customers, develop a deep understanding of market needs, and help uncover opportunities that inform new product development. Your work will directly contribute to expanding our global footprint.
**Why join our** **Legal** **team?**
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### **Team \& structure**
Legal is a small, highly collaborative team working across commercial, regulatory, and compliance areas. The team operates globally, partnering closely with teams across the business to support a wide range of initiatives.
### **Business impact**
Legal enables the business to scale internationally while managing risk in a complex regulatory landscape. Their work supports customers across diverse industries—from smart cities and aviation to EV charging and beyond—ensuring we can operate confidently across markets.
### **What you’ll work on**
You’ll work on a broad range of legal challenges, from commercial contracts to regulatory initiatives and strategic projects. It’s a fast\-paced, agile environment where no two problems are the same, shaped by the diversity of our customers and the global nature of our business.
**Why join our** **People Ops** **team?**
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### **Team \& structure**
People Ops partners with teams across the business, spanning hiring, development, and culture. Working across 15\+ countries and four major hubs—São Paulo, Berlin, the United States, and Manila—the team brings together a wide range of working styles and cultural perspectives.
### **Business impact**
The team builds the foundation for a high\-performing, inclusive, and globally connected organisation. By bringing together diverse cultures and ways of working, they enable teams to collaborate effectively and perform at their best.
### **What you’ll work on**
You’ll shape hiring strategies, employee experience, and development programs across a globally distributed workforce—helping to build a cohesive culture while supporting teams in different regions to thrive.
**Why join our** **Product management** **team?**
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### **Team \& structure**
Our product managers are primarily based in Germany and across Europe, working closely with engineering and design in cross\-functional teams aligned to key product domains.
### **Business impact**
Product sits at the intersection of customer needs, technology, and business strategy. The team defines what we build and why—shaping the platform to support customers across industries like fleet management, EV charging, aviation, pet tracking, and more, while driving growth and differentiation for emnify.
### **What you’ll work on**
You’ll lead product discovery, prioritisation, and delivery—working closely with customers and internal teams to identify opportunities, define solutions, and bring new features to market that solve real\-world connectivity challenges at scale.
**Your benefits**
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### **Work flexibility**
We're a globally distributed team, making flexibility essential. Our roles are designed as hybrid, remote, or include relocation opportunities. ### **Time to recharge**
Enjoy a generous time\-off policy starting at 30 days (location\-based) to recharge and focus on what matters most. ### **Learning support**
Ongoing professional development opportunities through access to courses, certifications, or conferences. ### **Good vibes**
Join regular company events and team outings to connect with colleagues, celebrate, and have fun. Oh, and did we mention our dog\-friendly offices? **Our hiring process**
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With our skills\-first assessment, we focus on what you can do and the strengths you bring to the table, giving you a fair chance to shine based on your abilities, not just your resume. ### **1\.** **Application Review**
Our Talent Partners will review your application and skills for the current role and future opportunities.
### **2\.** **Talent Interview**
A 45\-minute chat with one of our Talent Partners to learn about your skills, motivation and achievements.
### **3\.** **Department Interview**
A 1\-hour discussion with your Hiring Manager, who will evaluate your skills and expertise. Let your skills shine and show us how you can contribute!
### **4\.** **Functional Assessment**
Be ready to demonstrate your skills through tasks like case studies, presentations, panel discussions, or coding challenges (depending on the role).
### **5\.** **Final interview**
Get to know your team and stakeholders. Discuss your fit and culture\- add with us, and how we can grow together!
**We believe in giving everyone a fair chance!**
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When you apply for a role at emnify, we'll focus on your skills and what you can bring to the table, regardless of your nationality, ethnic or national origin, skin color, religion, disability, sex, sexual orientation, or gender identity. If you have a disability, chronic illness, or are neurodiverse, please let us know so we can provide the support you need throughout the application process.
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### **Meet your talent partner**
#### **Leslie Anicho**
Senior Talent Partner
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